| Commit message (Collapse) | Author | Age | Files | Lines |
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A brief about how hardlink migration works:
- Different hardlinks (to the same file) may hash to different bricks,
but their cached subvol will be same. Rebalance picks up the first hardlink,
calculates it's hash(call it TARGET) and set the hashed subvolume as an xattr
on the data file.
- Now all the hardlinks those come after this will fetch that xattr and will
create linkto files on TARGET (all linkto files for the hardlinks will be hardlink
to each other on TARGET).
- When number of hardlinks on source is equal to the number of hardlinks on
TARGET, the data migration will happen.
RACE:1
Since rebalance is multi-threaded, the first lookup (which decides where the TARGET
subvol should be), can be called by two hardlink migration parallely and they may end
up creating linkto files on two different TARGET subvols. Hence, hardlinks won't be
migrated.
Fix: Rely on the xattr response of lookup inside gf_defrag_handle_hardlink since it
is executed under synclock.
RACE:2
The linkto files on TARGET can be created by other clients also if they are doing
lookup on the hardlinks. Consider a scenario where you have 100 hardlinks. When
rebalance is migrating 99th hardlink, as a result of continuous lookups from other
client, linkcount on TARGET is equal to source linkcount. Rebalance will migrate data
on the 99th hardlink itself. On 100th hardlink migration, hardlink will have TARGET as
cached subvolume. If it's hash is also the same, then a migration will be triggered from
TARGET to TARGET leading to data loss.
Fix: Make sure before the final data migration, source is not same as destination.
RACE:3
Since a hardlink can be migrating to a non-hashed subvolume, a lookup from other
client or even the rebalance it self, might delete the linkto file on TARGET leading
to hardlinks never getting migrated.
This will be addressed in a different patch in future.
> Change-Id: If0f6852f0e662384ee3875a2ac9d19ac4a6cea98
> BUG: 1469964
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17755
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: If0f6852f0e662384ee3875a2ac9d19ac4a6cea98
BUG: 1473141
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17838
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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On demand migration of files i.e. migration done by clients
triggered by a setfattr was broken.
Dependency on defrag led to crash when migration was triggered from
client.
Note: This functionality is not available for tiered volumes. Migration
from tier served client will fail with ENOTSUP.
usage (But refer to the steps mentioned below to avoid any issues) :
setfattr -n "trusted.distribute.migrate-data" -v "1" <filename>
The purpose of fixing the on-demand client migration was to give a
workaround where the user has lots of empty directories compared to
files and want to do a remove-brick process.
Here are the steps to trigger file migration for remove-brick process from
client. (This is highly recommended to follow below steps as is)
Let's say it is a replica volume and user want to remove a replica pair
named brick1 and brick2. (Make sure healing is completed before you run
these steps)
Step-1: Start remove-brick process
- gluster v remove-brick <volname> brick1 brick2 start
Step-2: Kill the rebalance daemon
- ps aux | grep glusterfs | grep rebalance\/ | awk '{print $2}' | xargs kill
Step-3: Do a fresh mount as mentioned here
- glusterfs -s ${localhostname} --volfile-id rebalance/$volume-name /tmp/mount/point
Step-4: Go to one of the bricks (among brick1 and brick2)
- cd <brick1 path>
Step-5: Run the following command.
- find . -not \( -path ./.glusterfs -prune \) -type f -not -perm 01000 -exec bash -c 'setfattr -n "distribute.fix.layout" -v "1" ${mountpoint}/$(dirname '{}')' \; -exec setfattr -n "trusted.distribute.migrate-data" -v "1" ${mountpoint}/'{}' \;
This command will ignore the linkto files and empty directories. Do a fix-layout of
the parent directory. And trigger a migration operation on the files.
Step-6: Once this process is completed do "remove-brick force"
- gluster v remove-brick <volname> brick1 brick2 force
Note: Use the above script only when there are large number of empty directories.
Since the script does a crawl on the brick side directly and avoids directories those
are empty, the time spent on fixing layout on those directories are eliminated(even if the script
does not do fix-layout on empty directories, post remove-brick a fresh layout will be built
for the directory, hence not affecting application continuity).
Detailing the expectation for hardlink migartion with this patch:
Hardlink is migrated only for remove-brick process. It is highly essential
to have a new mount(step-3) for the hardlink migration to happen. Why?:
setfattr operation is an inode based operation. Since, we are doing setfattr from
fuse mount here, inode_path will try to build path from the linked dentries to the inode.
For a file without hardlinks the path construction will be correct. But for hardlinks,
the inode will have multiple dentries linked.
Without fresh mount, inode_path will always get the most recently linked dentry.
e.g. if there are three hardlinks named dir1/link1, dir2/link2, dir3/link3, on a client
where these hardlinks are looked up, inode_path will always return the path dir3/link3
if dir3/link3 was looked up most recently. Hence, we won't be able to create linkto
files for all other hardlinks on destination (read gf_defrag_handle_hardlink for more details
on hardlink migration).
With a fresh mount, the lookup and setfattr become serialized. e.g. link2 won't be
looked up until link1 is looked up and migrated. Hence, inode_path will always have the correct
path, in this case link1 dentry is picked up(as this is the most recently looked up inode) and
the path is built right.
Note: If you run the above script on an existing mount(all entries looked up), hard links may
not be migrated, but there should not be any other issue. Please raise a bug, if you find any
issue.
Tests: Manual
> Change-Id: I9854cdd4955d9e24494f348fb29ba856ea7ac50a
> BUG: 1450975
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17115
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: I9854cdd4955d9e24494f348fb29ba856ea7ac50a
BUG: 1473140
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17837
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Normal value were different in dht_init and dht_reconfigure.
Initialization/reconfigure of throttle option are carved out to a separate function
(dht_configure_throttle) now. Normal value will be "2".
> Change-Id: Ie323eae019af41d6bef0a136e3d284dc82bab9a1
> BUG: 1451162
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17303
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Zhou Zhengping <johnzzpcrystal@gmail.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: Ie323eae019af41d6bef0a136e3d284dc82bab9a1
BUG: 1473137
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17836
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Current rebalance throttle options: lazy/normal/aggressive may not always be
sufficient for the purpose of throttling. In our recent test, we observed for
certain setups, normal and aggressive modes behaved similarly consuming full
disk bandwidth. So in cases like this admin should be able to tune it
down(or vice versa) depending on the need.
Along with old throttle configurations, thread counts are tuned based on number.
e.g. gluster v set vol-name cluster-rebal.throttle 5.
Admin can tune up/down between 0 and the number of cores available.
Note: For heterogenous servers, validation will fail on the old server if "number"
is given for throttle configuration.
The message looks something like this:
"volume set: failed: Staging failed on vm2. Error: cluster.rebal-throttle should be {lazy|normal|aggressive}"
Test: Manual test by logging active thread number after reconfiguring throttle option.
testcase: tests/basic/distribute/throttle-rebal.t
> Change-Id: I46e3cde546900307831028b344ecf601fd9b02c3
> BUG: 1438370
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/16980
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: I46e3cde546900307831028b344ecf601fd9b02c3
BUG: 1473136
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17835
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Problem: Throttle settings "normal" and "aggressive" for rebalance
did not have performance difference.
normal mode spawns $(no. of cores - 4)/2 threads and aggressive
spawns $(no. of cores - 4) threads. Though aggressive mode has twice
the number of threads compared to that of normal mode, there was no
performance gain when switched to aggressive mode from normal mode.
RCA:
During the course of debugging the above problem, we tried assigning
migration job to migration threads spawned by rebalance, rather than
synctasks(as there is more overhead associated to manage the task
queue and threads). This gave us a significant improvement over rebalance
under synctasks. This patch does not really gurantee that there will be a
clear performance difference between normal and aggressive mode, but this
patch certainly maximized the disk utilization for 1GBfiles run.
Results:
Test enviroment:
Gluster Config:
Number of Bricks: 2 (one brick per disk(RAID-6 12 disk))
Bricks:
Brick1: server1:/brick/test1/1
Brick2: server2:/brick/test1/1
Options Reconfigured:
performance.readdir-ahead: on
server.event-threads: 4
client.event-threads: 4
1000 files with 1GB each were created/renamed such that all files will have
server1 as cached and server2 as hashed, so that all files will be migrated.
Test machines had 24 cores each.
Results with/without synctask based migration:
-----------------------------------------------
mode normal(10threads) aggressive(20threads)
timetaken 0:55:30 (h:m:s) 0:56:3 (h:m:s)
withsynctask
timetaken
with migrator 0:38:3 (h:m:s) 0:23:41 (h:m:s)
threads
From above table it can be seen that, there is a clear 2x perf gain between
rebalance with synctask vs rebalance with migrator threads.
Additionally this patch modifies the code so that caller will have the exact error
number returned by dht_migrate_file(earlier the errno meaning was overloaded). This
will help avoiding scenarios where migration failure due to ENOENT, can result in
rebalance abort/failure.
> Change-Id: I8904e2fb147419d4a51c1267be11a08ffd52168e
> BUG: 1420166
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/16427
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: I8904e2fb147419d4a51c1267be11a08ffd52168e
BUG: 1473134
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17834
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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With rebalance doing fallocate on destination, we don't need to
add file size to the "destination available space" to decide whether
to migrate the file or not.
Notes: Fallocate would have already occupied the file size space on
destination
> Change-Id: If7f6a6654e6257726680cf20d618482a6e9095a6
> BUG: 1441508
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17104
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: If7f6a6654e6257726680cf20d618482a6e9095a6
BUG: 1473133
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17833
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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... criteria happens to be the same subvol containing data-file
Rebalance need to figure out a new subvol in case the hashed subvol
does not have enough space. In the process of figuring out the new subvol,
we need to ignore the source subvol, otherwise it will lead to data loss.
Test: Manual
Ran the following
sizeof /tmp/1: 1.5GB
sizeof /brick/1: 16GB
sizeof /tmp/2: 1.5GB
<start>
glusterd; gluster v create test1 vm1:/brick/1 vm1:/tmp/1;
gluster v start test1;
mount -t glusterfs vm1:test1 /mnt;
for i in {1..2000}
do
dd if=/dev/zero of=/mnt/file$i bs=1KB count=1 &> /dev/null;
done
gluster v add-brick test1 vm1:/tmp/2
gluster v set test1 min-free-disk 12GB
gluster v remove-brick test1 vm1:/tmp/1 star
<end>
file count and data were intact.
> Change-Id: Ib8fc8467a3d48a7c12958824c4f0b88e160b86c1
> BUG: 1441508
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17064
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: Ib8fc8467a3d48a7c12958824c4f0b88e160b86c1
BUG: 1473133
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17832
Smoke: Gluster Build System <jenkins@build.gluster.org>
Tested-by: Shyamsundar Ranganathan <srangana@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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test: Manual
created files of size 1K on 2 brick(of size 1GB) setup .
added a brick of size 16GB.
set min-free-disk to 12GB(so that first two bricks won't receive any files).
removed one of the 1st brick of size 1GB.
Logs from test:
[2017-04-12 08:52:08.196484] W [MSGID: 0] [dht-rebalance.c:895:__dht_check_free_space]
0-test1-dht: Write will cross min-free-disk for file - /tile32 on subvol - test1-client-1.
Looking for new subvol.
[2017-04-12 08:52:08.196904] I [MSGID: 0] [dht-rebalance.c:925:__dht_check_free_space]
0-test1-dht: new target found - test1-client-2 for file - /tile32
- Post migration we have two files. The new destination (/brick/1) has the data file
[root@vm1 ~]# ll /brick/1/tile32
-rw-r--r--. 2 root root 0 Apr 12 14:22 /brick/1/tile32
- On the old target the linkto file is there with linkto xattr pointing to /brick/1
[root@vm1 ~]# ll /tmp/2/tile32
---------T. 2 root root 1000 Apr 12 14:22 /tmp/2/tile32
[root@vm1 ~]# getfattr -m . -de text /tmp/2/tile32
getfattr: Removing leading '/' from absolute path names
security.selinux="unconfined_u:object_r:user_tmp_t:s0"
trusted.gfid="����:Aс�#�/'b2"
trusted.glusterfs.dht.linkto="test1-client-2"
Marking ./tests/features/worm_sh.t as bad test.
Reason being, this patch failed on master branch as well and it has nothing
to do with rebalance/remove-brick.
> BUG: 1441508
> Change-Id: I90bae251cda3d957a49cdceda90cd08311a392fb
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/17034
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Signed-off-by: Susant Palai <spalai@redhat.com>
Change-Id: I90bae251cda3d957a49cdceda90cd08311a392fb
BUG: 1473132
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17831
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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The job of the crawler in rebalance is to fetch files from each
local subvolume and push them to migration queue if it is eligible for
migration. And we do a lookup on the entries received to figure out the
eligibilty. Since, the lookup done is on a local subvolume we receive
linkto files and regular files as well. This requires us to do two lookups.
first: do a lookup on the file to figure out whether it is a linkto file
second: do a lookup on the file to figure out if it should be migrated
Note: The migrator thread also does one lookup for the file before
migration.
Optimization: Remove the lookup done by the crawler. Offload these task
to the migrator threads. For linkto file verification get the stat and
xattr information from readdirp.
So in total we have one lookup instead of three for each entry.
Performance numbers:
Create two node, two brick setup. Created 100000 files. And started
rebalance. Since, there is no add-brick, no files will be migrated and
we will get the crawler performance.
Without patch:
[root@gprfs039 ~]# grs
Node Rebalanced-files size
scanned failures skipped status run time in
h:m:s
--------- ----------- -----------
----------- ----------- ----------- ------------
--------------
localhost 0 0Bytes
50070 0 0 completed 0:0:48
server2 0 0Bytes
49930 0 0 completed 0:0:44
volume rebalance: test1: success
Total: 48 seconds
WiththecurrentPatch:
[root@gprfs039 mnt]# gluster v rebalance test1 status
Node Rebalanced-files size
scanned failures skipped status run time in
h:m:s
--------- ----------- -----------
----------- ----------- ----------- ------------
--------------
localhost 0 0Bytes
50070 0 0 completed 0:0:12
server2 0 0Bytes
49930 0 0 completed 0:0:12
volume rebalance: test1: success
Total: 12 seconds
That's 4X speed gain. :)
> Updates glusterfs#155
> Change-Id: Idc8e5b366e76c54aa40d698876ae62fe1630b6cc
> BUG: 1439571
> Signed-off-by: Susant Palai <spalai@redhat.com>
> Reviewed-on: https://review.gluster.org/15781
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Updates glusterfs#155
Change-Id: Idc8e5b366e76c54aa40d698876ae62fe1630b6cc
BUG: 1473129
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: https://review.gluster.org/17830
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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All of the functions called to free the refcounted structure are doing a
typecast from (void*) to their own type taht is being free'd. This
really is not needed and the refcount interface is made a little simpler
without the requirement of typecasting.
With this small improvement in the API, all callers are updated too.
Cherry picked from commit f2ca301bd741e3e3f076cd3f72fcd377bcef2a1a:
> Change-Id: I32473b6d1799f62861d4b2d78ea30c09e6c80ab1
> BUG: 1416889
> Signed-off-by: Niels de Vos <ndevos@redhat.com>
> Reviewed-on: https://review.gluster.org/16471
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Backport note: This patch makes it easier to backport changes that use
gf_refcount_t. There is no functional change.
Change-Id: I32473b6d1799f62861d4b2d78ea30c09e6c80ab1
BUG: 1471870
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: https://review.gluster.org/17913
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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There is a another race between the cached subvol
being updated in the inode_ctx and the fd being opened on
the target.
1. fop1 -> fd1 -> subvol0
2. file migrated from subvol0 to subvol1 and cached_subvol
changed to subvol1 in inode_ctx
3. fop2 -> fd1 -> subvol1 [takes new cached subvol]
4. fop2 -> checks fd ctx (fd not open on subvol1) -> opens fd1 on subvol1
5. fop1 -> checks fd ctx (fd not open on subvol0)
-> tries to open fd1 on subvol0 -> fails with "No such file on directory".
Fix:
If dht_fd_open_on_dst fails with ENOENT or ESTALE, wind to old subvol
and let the phase1/phase2 checks handle it.
Change-Id: I34f8011574a8b72e3bcfe03b0cc4f024b352f225
BUG: 1467010
> BUG: 1465075
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17731
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
(cherry picked from commit f7a450c17fee7e43c544473366220887f0534ed7)
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17829
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
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If an fd is opened on a file, the file is migrated
and the cached subvol is updated in the inode_ctx
before an fd based fop is sent, the fop is sent to
the dst subvol on which the fd is not opened.
This causes the FOP to fail with EBADF.
Now, every fd based fop will check to see that the fd
has been opened on the dst subvol before winding it down.
> BUG: 1465075
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17630
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Reviewed-by: Susant Palai <spalai@redhat.com>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
(cherry picked from commit 91db0d47ca267aecfc6124a3f337a4e2f2c9f1e2)
Change-Id: Id92ef5eb7a5b5226688e2d2868b15e383f5f240e
BUG: 1467010
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17752
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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The rebalance estimates calculation was not handling
calculations correctly when no files had been processed,
i.e., when rate_lookedup was 0.
Now, the estimated time is set to 0 in such scenarios as
there is no way for rebalance to figure out how long the
process will take to complete without knowing the rate at
which the files are being processed.
> BUG: 1457985
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17564
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Change-Id: I7b6378e297e1ba139852bcb2239adf2477336b5b
BUG: 1460914
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17599
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Use a local variable to store the call count
in the STACK_WIND for loop. Using frame->local
is dangerous as it could be freed while the loop
is still being processed
> BUG: 1466110
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17645
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> Tested-by: Nigel Babu <nigelb@redhat.com>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
(cherry picked from commit 56da27cf5dc6ef54c7fa5282dedd6700d35a0ab0)
Change-Id: Ie65cdcfb7868509b4a83bc2a5b5d6304eabfbc8e
BUG: 1466863
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17665
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Empty directories were not being considered while
calculating rebalance estimates leading to negative
time-left values being displayed as part of the
rebalance status.
> BUG: 1457985
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17448
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Change-Id: I48d41d702e72db30af10e6b87b628baa605afa98
BUG: 1460914
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17530
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
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Use a local variable to store the call cnt used in the
for loop for the STACK_WIND so as not to access local
which may be freed by STACK_UNWIND after all fops return.
> BUG: 1452102
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17343
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
(cherry picked from commit 17784aaa311494e4538c616f02bf95477ae781bc)
Change-Id: I24f49b6dbd29a2b706e388e2f6d5196c0f80afc5
BUG: 1453056
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17349
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Problem:
Rebalance compares the node-uuid of a file against its own
to and migrates a file only if they match. However, the
current behaviour in both AFR and EC is to return
the node-uuid of the first brick in a replica set for all
files. This means a single node ends up migrating all
the files if the first brick of every replica set is on the
same node.
Fix:
AFR and EC will return all node-uuids for the replica set.
The rebalance process will divide the files to be migrated
among all the nodes by hashing the gfid of the file and
using that value to select a node to perform the migration.
This patch makes the required DHT and tiering changes.
Some tests in rebal-all-nodes-migrate.t will need to be
uncommented once the AFR and EC changes are merged.
> BUG: 1366817
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17239
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Amar Tumballi <amarts@redhat.com>
> Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>
> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
(cherry picked from commit b23bd3dbc2c153171d0bb1205e6804afe022a55f)
Change-Id: I5ce41600f5ba0e244ddfd986e2ba8fa23329ff0c
BUG: 1451561
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17311
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Using local->call_cnt to check STACK_WINDs can
cause dht_rmdir_do to be called erroneously if
dht_rmdir_readdirp_cbk unwinds before we check if
local->call_cnt is zero in dht_rmdir_opendir_cbk.
This can cause frame corruptions and crashes.
Thanks to Shyam (srangana@redhat.com) for the
analysis.
> BUG: 1451083
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17305
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
(cherry picked from commit 6f7d55c9d58797beaf8d5393c03a5a545bed8bec)
Change-Id: I5362cf78f97f21b3fade0b9e94d492002a8d4a11
BUG: 1451371
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17309
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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>Change-Id: I6adce98f52e17953f501bc590ff7189cceac3c31
>BUG: 1431908
>Signed-off-by: Poornima G <pgurusid@redhat.com>
>Reviewed-on: https://review.gluster.org/17057
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: Vijay Bellur <vbellur@redhat.com>
(cherry picked from commit af218797fa98f2f75594fc9ae595f184682f1a0d)
Change-Id: I6adce98f52e17953f501bc590ff7189cceac3c31
BUG: 1435942
Reviewed-on: https://review.gluster.org/17285
Tested-by: Raghavendra Talur <rtalur@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
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Fixed an incorrect return code check in the rebalance
code.
> BUG: 1448640
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17197
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
(cherry picked from commit 67598f538efb24a9e5ac561b294a05e707e15761)
Change-Id: I60804ff121cec7a2f0419e2ee70dd22ea7533c0c
BUG: 1448864
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17204
Reviewed-by: MOHIT AGRAWAL <moagrawa@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Backport of:
> Change-Id: Id84bc87e48f435573eba3b24d3fb3c411fd2445d
> BUG: 1440051
> Reviewed-on: https://review.gluster.org/17126
> (cherry-picked from ab88f655e6423f51e2f2fac9265ff4d4f5c3e579)
Change-Id: Id84bc87e48f435573eba3b24d3fb3c411fd2445d
BUG: 1426508
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: https://review.gluster.org/17134
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
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Removing redundant logs were introduced in
https://review.gluster.org/#/c/17065/
> BUG: 1445590
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17118
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Susant Palai <spalai@redhat.com>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
(cherry picked from commit 25f0a7b153b30b2c0e8278b0ce11d1199c3fb006)
Change-Id: I0d6055488b51a13c91d2121e87f653cdb94888b0
BUG: 1446227
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17130
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Backport of:
> Change-Id: Id7823fd932b4e5a9b8779ebb2b612a399c0ef5f0
> BUG: 1440051
> Reviewed on: https://review.gluster.org/17085
> (cherry-picked from commit d60ca8e96bbc16b13f8f3456f30ebeb16d0d1e47)
This bug was causing VMs to pause during rebalance. When qemu winds
down a STAT, shard fills the trusted.glusterfs.shard.file-size attribute
in the req dict which DHT doesn't wind its STAT fop with upon detecting
the file has undergone migration. As a result shard doesn't find the
value to this key in the unwind path, causing it to fail the STAT
with EINVAL.
Also, the same bug exists in other fops too, which is also fixed in
this patch.
Change-Id: Id7823fd932b4e5a9b8779ebb2b612a399c0ef5f0
BUG: 1426508
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: https://review.gluster.org/17119
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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rm -rf <dir> fails with ENOENT if dir contains a lot of
stale linkto files. This is because a single
readdirp is sent as part of the rmdir which would return
and delete only as many linkto files on the bricks as would fit
in one readdirp buffer. Running rm -rf <dir> multiple times
will eventually delete all the files. The fix sends readdirp
on each subvol until no more entries are returned.
> BUG: 1442724
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/17065
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
(cherry picked from commit e5f9ba138571bd18226462c49ff6a55f5c3ed3a4)
Change-Id: I447f2d193de4bd8ac16e4541c6b919d22250e39e
BUG: 1444540
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/17102
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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As readdir-ahead can be loaded as a child of dht, dht has to specify
the xattrs it is intrested in, as part of opendir call itself.
>Reviewed-on: https://review.gluster.org/16902
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>(cherry picked from commit 0f71338e1d7c0b70f4fe3b19c68612fe730d9de2)
Change-Id: I012ef96cc143b0cef942df78aa7150d85ec38606
BUG: 1435942
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: https://review.gluster.org/16947
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Backport of https://review.gluster.org/16986
Problem:
local->loc.gfid in dht_lookup_directory() will be null-gfid for a fresh lookup.
dht_lookup_dir_cbk() updates local->loc.gfid while in other thread dht_lookup_directory()
is still winding lookup calls to subvolumes so there is a chance of partial gfid being
seen by EC.
We saw in 12x(4+2) volume, ec is receiving an loc where the gfid has last 10 bytes matching
with the gfid of the directory and the first 4 bytes are all-zeros. This is leading to EC
erroring out the lookup with EINVAL which leads to NFS failing lookup with EIO.
snip from gdb:
$37 = (dht_local_t *) 0x7fde5de5b3cc
(gdb) p /x $37->loc.gfid
$39 = {0x3b, 0x82, 0x10, 0x5e, 0x40, 0x65, 0x43, 0x14, 0xa0, 0xc6, 0x8, 0xf5,
0x6c, 0x2c, 0xb8, 0x56}
(gdb) fr 7
state=<optimized out>) at ec-generic.c:837
837 ec_lookup_rebuild(fop->xl->private, fop, cbk);
(gdb) p /x fop->loc[0].gfid
$40 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x43, 0x14, 0xa0, 0xc6, 0x8, 0xf5, 0x6c,
0x2c, 0xb8, 0x56}
snip from log:
[2017-01-29 03:22:30.132328] W [MSGID: 122019]
[ec-helpers.c:354:ec_loc_gfid_check] 0-butcher-disperse-4: Mismatching GFID's
in loc [2017-01-29 03:22:30.132709] W [MSGID: 112199]
[nfs3-helpers.c:3515:nfs3_log_newfh_res] 0-nfs-nfsv3:
/linux-4.9.5/Documentation => (XID: b27b9474, MKDIR: NFS: 5(I/O error), POSIX:
5(Input/output error)), FH: exportid 00000000-0000-0000-0000-000000000000, gfid
00000000-0000-0000-0000-000000000000, mountid
00000000-0000-0000-0000-000000000000 [Invalid argument]
Fix:
update local->loc.gfid in last-call to make sure there are no races.
>BUG: 1438411
>Change-Id: Ifcb7e911568c1f1f83123da6ff0cf742b91800a0
>Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
BUG: 1438423
Change-Id: I804822a1d50215301881ac18318282c1a6951cfb
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: https://review.gluster.org/16987
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Backport of: https://review.gluster.org/16829
My patch at https://review.gluster.org/16419 is resulting
in core dumps everytime I run tests/features/nuke.t.
Turns out dht, upon successfully "nuking" a directory,
which was initiated through a setxattr, unwinds the operation
with rmdir fop signature, resulting in readdir-ahead casting
a struct iatt (preparent) to dict_t, leading to a crash.
Change-Id: I480f80170c31a6da3ff7809852449e6f44f7d047
BUG: 1428739
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: https://review.gluster.org/16836
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Corrected the op_errno assignments and NULL checks in
the dht_sexattr2 and dht_removexattr2 functions. Earlier,
they unwound with the default EINVAL op_errno if the
file had been deleted.
> Change-Id: Iaf837a473d769cea40132487a966c7f452990071
> BUG: 1421653
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/16610
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: MOHIT AGRAWAL <moagrawa@redhat.com>
> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
(cherry picked from commit 028626a86ea409f908783b9007c02877f20be43e)
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Change-Id: Icc53ca52281a533fc0c8eeafb4c889c818c313e1
BUG: 1424921
Reviewed-on: https://review.gluster.org/16679
Tested-by: N Balachandran <nbalacha@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Updating the layout in the dht inode_ctx in
rebalance_task_completion after the file is migrated
is erroneous in case of files with hardlinks.
This step can be skipped as the layout will be set
in the syncop_lookup call post the migration in
dht_migrate_file.
> Change-Id: I24ac798a919585d91a117d6a207e6a31b88486c6
> BUG: 1415761
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: https://review.gluster.org/16457
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
> Reviewed-by: Susant Palai <spalai@redhat.com>
(cherry picked from commit ddf05f3d1e39cc920251c809e9ba42fe42b2c5f2)
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Change-Id: I46176f8605cfb782aa17c2bc9ffd7a5f0d07dd88
BUG: 1419855
Reviewed-on: https://review.gluster.org/16554
Tested-by: N Balachandran <nbalacha@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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>Change-Id: I9c5e65b32e316e6a2fc7e1f5c79fce79386b78e2
>BUG: 1401812
>Signed-off-by: Poornima G <pgurusid@redhat.com>
>Reviewed-on: https://review.gluster.org/16071
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Change-Id: I9c5e65b32e316e6a2fc7e1f5c79fce79386b78e2
BUG: 1417027
Signed-off-by: Poornima G <pgurusid@redhat.com>
(cherry picked from commit 7c6538f6c8f9a015663b4fc57c640a7c451c87f7)
Reviewed-on: https://review.gluster.org/16461
Tested-by: Raghavendra G <rgowdapp@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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The estimates will be logged to the rebalance log on running
gluster v rebalance <vol> status
> Change-Id: I9d51b139cd4c8dfde1ff2c2050720ae606c13fc6
> BUG: 1396004
> Signed-off-by: N Balachandran <nbalacha@redhat.com>
> Reviewed-on: http://review.gluster.org/15893
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
(cherry picked from commit 2edd75ec8de17da89004859375844f60890a4df0)
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Change-Id: I58b0550210149443966798d9a26e73cb598eeb6a
BUG: 1415915
Reviewed-on: https://review.gluster.org/16458
Tested-by: N Balachandran <nbalacha@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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tierd is implemented by separating from rebalance process.
The commands affected:
1) Attach tier will trigger this process instead of old one
2) tier start and tier start force will also trigger this process.
3) volume status [tier] will show tier daemon as a process instead
of task and normal tier status and tier detach status works.
4) tier stop implemented.
5) detach tier implemented separately along with new detach tier
status
6) volume tier volname status will work using the changes.
7) volume set works
This patch has separated the tier translator from the legacy
DHT rebalance code. It now sends the RPCs from the CLI
to glusterd separate to the DHT rebalance code.
The daemon is now a service, similar to the snapshot daemon,
and can be viewed using the volume status command.
The code for the validation and commit phase are the same
as the earlier tier validation code in DHT rebalance.
The “brickop” phase has been changed so that the status
command can use this framework.
The service management framework is now used.
DHT rebalance does not use this framework.
This service framework takes care of :
*) spawning the daemon, killing it and other such processes.
*) volume set options , which are written on the volfile.
*) restart and reconfigure functions. Restart is to restart
the daemon at two points
1)after gluster goes down and comes up.
2) to stop detach tier.
*) reconfigure is used to make immediate volfile changes.
By doing this, we don’t restart the daemon.
it has the code to rewrite the volfile for topological
changes too (which comes into place during add and remove brick).
With this patch the log, pid, and volfile are separated
and put into respective directories.
Change-Id: I3681d0d66894714b55aa02ca2a30ac000362a399
BUG: 1313838
Signed-off-by: hari gowtham <hgowtham@redhat.com>
Reviewed-on: http://review.gluster.org/13365
Smoke: Gluster Build System <jenkins@build.gluster.org>
Tested-by: hari gowtham <hari.gowtham005@gmail.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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As with dht, dirs are present on all subvolumes,
renaming them is a compound operation and thus a
partial success + partial failure scenario is
possible, resulting in an inconsistent state.
For purposes of reproduction, such a scenario can
easily be produced by stopping the volume, edit the
volfile of a certain subvolume to get at an
"option read-only on" setting, and then restart
the volume. Thus those operations that are to make change
on the affected subvolume will fail with EROFS.
To handle such scenarios, we introduce an in-memory cache
where we record the return values obtained from the
subvolumes. At the final stage of the dir rename operation
we check if it's a partial success/fail situation. If yes,
then we perform a reverse rename op on those subvolumes
where the operation succeeded.
Change-Id: I3d05f74f53932cb984a918d252a7309c1009a51d
BUG: 1412069
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/15739
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
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Issue:
frame has a void * cookie pointer.
In case of STACK_WIND_COOKIE frame->cookie is assigned
to what is sent by the caller.
In case of STACK_WIND frame->cookie is assigned to point
point to the frame itself.
For ease of coding, at many places, the cookie in the cbk
is used to get the pointer to the next xl. This is
inconsistent when STACK_WIND_TAIL comes into picture.
Eg: dht_setxattr () {
for (i = 0 ; i < conf->subvolume_cnt ; i++) {
STACK_WIND (..dht_checking_pathinfo_cbk,
conf->subvolumes[i] ..);
}
dht_checking_pathinfo_cbk (...void *cookie...) {
prev = cookie;
...
for (i = 0; i < conf->subvolume_cnt; i++) {
if (conf->subvolumes[i] == prev->this) {
...
}
}
}
Consider the below graph:
dht (parent)
readdir-ahead => Doesn't define setxattr and uses STACK_WIND_TAIL
protocol-client
With this graph, when dht_checking_pathinfo_cbk is called,
cookie will have frame pointing to protocol-client.
i.e. prev->this will be protocol-client. But dht was expecting
it to be readdir-ahead as it has stored in conf->subvolumes[i]
Solution:
Hence, as a thumb rule, if cbk is using cookie, then we explicitly
call STACK_WIND_COOKIE.
Change-Id: I83aea1e24c809c5a91a0db7283e908e125471bd4
BUG: 1401812
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: http://review.gluster.org/16039
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Fixed the order of the migration phase checks
in dht_fsync_cbk. Phase1 should never be hit if op_ret
is non zero.
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Change-Id: I9222692e04868bffa93498059440f0aa553c83ec
BUG: 1410777
Reviewed-on: http://review.gluster.org/16350
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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BUG: 1410355
Change-Id: I867419ca36a81ef7209e6911a46c1c2c898b8eab
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/16328
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Problem:
Rename linkfile cleanup is done as non-root which may not have priviliges to do
the rename so it fails with EACCESS. MKDIR on that name in future will start to
hole on this subvolume. It is not easy to hit on fuse mounts because vfs takes
care of the permission checks even before rename fop is wound. But with
nfs-ganesha mounts it happens.
Fix:
Do rename cleanup as root
BUG: 1409727
Change-Id: I414c1eb6dce76b4516a6c940557b249e6c3f22f4
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/16317
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
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Fixed a memleak where dict was not being unrefed
in the dht_migration_complete_check_task and
dht_rebalance_inprogress_task functions.
Change-Id: I3d42e9a2e5c8596c985bf6431a68fd3905227383
BUG: 1409186
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/16308
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: MOHIT AGRAWAL <moagrawa@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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race: readdirp has read one entry, and doing a lookup on
that entry, but user might have renamed/removed that entry just
after readdirp but before lookup.
Since remove-brick is a costly opertaion,will ingore any
ENOENT/ESTALE failures and move on.
Change-Id: I62c7fa93c0b9b7e764065ad1574b97acf51b5996
BUG: 1408115
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/15846
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
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private
If reconfigure is executed parallely (or concurrently with dht_init),
there are races that can corrupt memory. One such race is modification
of regexes stored in conf (conf->rsync_regex_valid and
conf->extra_regex_valid) through dht_init_regex. With change [1],
reconfigure codepath can get executed parallely (with itself or with
dht_init) and this fix is needed.
Also, a reconfigure can race with any thread doing dht_layout_search,
resulting in dht_layout_search accessing regex freed up by reconfigure
(like in bz 1399134).
[1] http://review.gluster.org/15046
Change-Id: I039422a65374cf0ccbe0073441f0e8c442ebf830
BUG: 1399134
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/15945
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Upcall as a part of setattr, sends an invalidation and the
invalidation carries the resulting stat value. When a file
is converted to linkto files, even then an invalidation
is set and as a result the mountpoint shows the sticky
bit in the stat of the file.
eg: ---------T. 945 root root 0 Nov 8 10:14 hardlink.999
Fix:
When dht recieves a notification of sticky bit change, it updates
the flag, to indicate md-cache to send the subsequent lookup.
Change-Id: Ic2fd7a5b196db0754f9b97072e644e6bf69da606
BUG: 1392713
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: http://review.gluster.org/15789
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
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Generally linkto file is created using root user. Consider following
case, a user is trying to rename a file which he is not permitted.
So the rename fails with EACESS and when rename tries to cleanup the
linkto file, it fails.
The above issue happens when rename/00.t test executed on nfs-ganesha
clients :
Steps executed in script
* create a file "abc" using root
* rename the file "abc" to "xyz" using a non root user, it fails with EACESS
* delete "abc"
* create directory "abc" using root
* again try ot rename "abc" to "xyz" using non root user, test hungs here
which slowly leds to OOM kill of ganesha process
RCA put forwarded by Du for OOM kill of ganesha
Note that when we hit this bug, we've a scenario of a dentry being
present as:
* a linkto file on one subvol
* a directory on rest of subvols
When a lookup happens on the dentry in such a scenario, the control flow
goes into an infinite loop of:
dht_lookup_everywhere
dht_lookup_everywhere_cbk
dht_lookup_unlink_cbk
dht_lookup_everywhere_done
dht_lookup_directory (as local->dir_count > 0)
dht_lookup_dir_cbk (sets to local->need_selfheal = 1 as the entry is a linkto file on one of the subvol)
dht_lookup_everywhere (as need_selfheal = 1).
This infinite loop can cause increased consumption of memory due to:
1) dht_lookup_directory assigns a new layout to local->layout unconditionally
2) Most of the functions in this loop do a stack_wind of various fops.
This results in growing of call stack (note that call-stack is destroyed only after lookup response is
received by fuse - which never happens in this case)
Thanks Du for root causing the oom kill and Sushant for suggesting the fix
Change-Id: I1e16bc14aa685542afbd21188426ecb61fd2689d
BUG: 1397052
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: http://review.gluster.org/15894
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Problem: A hard link is lost during rebalance + lookup.Rebalance skip files
if file has hardlink.In dht_migrate_file __is_file_migratable ()
function checks if a file has hardlink, if yes file is not migrated
but if link is created after call this function then link will lost.
Solution: Call __check_file_has_hardlink to check hardlink existence after (S+T) bits
in migration process ,if file has hardlink then skip the file for
migrate rebalance process.
BUG: 1396048
Change-Id: Ia53c07ef42f1128c2eedf959a757e8df517b9d12
Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
Reviewed-on: http://review.gluster.org/15866
Reviewed-by: Susant Palai <spalai@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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DHT does not set the layout for newly created
directories as root. This causes EPERM failures
when a non-root user with insufficient permissions
creates directories.
credit: srangana@redhat.com for RCA
Change-Id: Ia646e41665ce172c43c5f01d2707455e8eb374ed
BUG: 1392772
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15794
Reviewed-by: Susant Palai <spalai@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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Currently these are few events related to child_up/down:
GF_EVENT_CHILD_UP : Issued when any of the protocol client
connects.
GF_EVENT_CHILD_MODIFIED : Issued by afr/dht/ec
GF_EVENT_CHILD_DOWN : Issued when any of the protocol client
disconnects.
These events get modified at the dht/afr/ec layers. Here is a
brief on the same.
DHT:
- All the subvolumes reported once, and atleast one child came
up, then GF_EVENT_CHILD_UP is issued
- connect GF_EVENT_CHILD_UP is issued
- disconnect GF_EVENT_CHILD_MODIFIED is issued
- All the subvolumes disconnected, GF_EVENT_CHILD_DOWN is issued
AFR:
- First subvolume came up, then GF_EVENT_CHILD_UP is issued
- Subsequent subvolumes coming up, results in GF_EVENT_CHILD_MODIFIED
- Any of the subvolumes go down, then GF_EVENT_SOME_CHILD_DOWN is issued
- Last up subvolume goes down, then GF_EVENT_CHILD_DOWN is issued
Until the patch [1] introduced GF_EVENT_SOME_CHILD_UP,
GF_EVENT_CHILD_MODIFIED was issued by afr/dht when any of the subvolumes
go up or down.
Now with md-cache changes, there is a necessity to differentiate between
child up and down. Hence, introducing GF_EVENT_SOME_DESCENDENT_DOWN/UP and
getting rid of GF_EVENT_CHILD_MODIFIED.
[1] http://review.gluster.org/12573
Change-Id: I704140b6598f7ec705493251d2dbc4191c965a58
BUG: 1396038
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: http://review.gluster.org/15764
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
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Raghavendra G found that posix is trying to print %s
but passing an int when HEALTH_CHECK fails in posix.
These are the kind of bugs that should be caught
at compilation itself.
Also fixed the problematic gf_event() callers.
BUG: 1386097
Change-Id: Id7bd6d9a9690237cec3ca1aefa2aac085e8a1270
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/15671
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Check for NULL inode before attempting to
set dht inode ctx.
Change-Id: I7693c18445f138221d8417df5e95b118cedb818a
BUG: 1395261
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15847
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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Break tier_migrate_using_query_file() into a more manageable
tier_migrate_link() and helpers.
Change-Id: I5eb2d2cff9e7a2a2da567c3c4c2d53aab195f477
BUG: 1358296
Signed-off-by: Milind Changire <mchangir@redhat.com>
Reviewed-on: http://review.gluster.org/14957
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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The rebalance event code was using strtok to parse the
volume name which is incorrect.
Reworked the code to get the correct volume name using
strstr.
Change-Id: Ib5f3305a34e6bf1ecfef677d87c5aff96bdeb0e6
BUG: 1388010
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15712
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Demote files on priority if hi-watermark has been breached and continue
to demote until the watermark drops below hi-watermark.
Monitor watermark more frequently.
Trigger demotion as soon as hi-watermark is breached.
Add cluster.tier-emergency-demote-query-limit option to limit number
of files returned from the database query for every iteration of
tier_migrate_using_query_file(). If watermark hasn't dropped below
hi-watermark during the first iteration, the next iteration will be
triggered approximately 1 second after tier_demote() returns to the
main tiering loop.
Update changetimerecorder xlator to handle query for emergency demote
mode.
Add tier-ctr-interface.h:
Move tier and ctr interface specific macros and struct definition from
libglusterfs/src/gfdb/gfdb_data_store.h to new header
libglusterfs/src/tier-ctr-interface.h
Change-Id: If56af78c6c81d37529b9b6e65ae606ba5c99a811
BUG: 1366648
Signed-off-by: Milind Changire <mchangir@redhat.com>
Reviewed-on: http://review.gluster.org/15158
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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