| Commit message (Collapse) | Author | Age | Files | Lines |
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Currently whenever dht_lookup_everywhere gets called, if in
dht_lookup_everywhere_cbk, a linkto file is found on non-hashed
subvolume, file is unlinked. But there are cases when this file
is under migration. Under such condition, we should avoid deletion
of file.
When some other rebalance process changes the layout of parent
such that dst_file (w.r.t. migration) falls on non-hashed node,
then may be lookup could have found it as linkto file but just
before unlink, file is under migration or already migrated
In such cased unlink can be avoided.
Race:
-------
If we have two bricks (brick-1 and brick-2) with initial file "a"
under BaseDir which is hashed as well as cached on (brick-1).
Assume "a" hashing gives 44.
Brick-1 Brick-2
Initial Setup: BaseDir/a BaseDir
[1-50] [51-100]
Now add new-brick Brick-3.
1. Rebalance-1 on node Node-1 (Brick-1 node) will reset
the BaseDir Layout.
2. After that it will perform
a) Create linkto file on new-hashed (brick-2)
b) Perform file migration.
1.Rebalance-1 Fixes the base-layout:
Brick-1 Brick-2 Brick-3
--------- ---------- ------------
BaseDir/a BaseDir BaseDir
[1-33] [34-66] [67-100]
2. Only a) is BaseDir/a BaseDir/a(linkto) BaseDir
performed Create linktofile
Now rebalance 2 on node-2 jumped in and it will perform
step 1 and 2-a.
After (rebal-2, step-1), it changes the layout of the BaseDir.
BaseDir/a BaseDir/a(link) BaseDir
[67-100] [1-33] [34-66]
For (rebale-2, step-2), It will perform lookup at Brick-3 as w.r.t new
layout 44 falls for brick-3. But lookup will fail.
So dht_lookup_everywhere gets called.
NOTE: On brick-2 by rebalance-1, a linkto file was created.
Currently that linkto files gets deleted by rebalance-2 lookup as it
is considered as stale linkto file. But with patch if rebalance is
already in progress or rebalance is over, linkto file will not be
unlinked. If rebalance is in progress fd will be open and if rebalance
is over then linkto file wont be set.
Change-Id: I3fee0d28de3c76197325536a9e30099d2413f079
BUG: 1116150
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/8345
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This solves a compilation error on some compiler versions.
To avoid compilation issues on non-Intel architectures, patch
http://review.gluster.org/8366/ has already been merged. It
disables ec on those architectures.
These modifications are temporary patches until a proper
solution for bug #1125166 is ready.
Change-Id: I74d0b79e84601cc4f86ad08ce0f8102b99a79a68
BUG: 1125168
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/8395
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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Added mtime preservation for special files during rebalance.
Change-Id: If04921d4d66853fde8b4d8a3ab748790864f8f42
BUG: 1122443
Signed-off-by: Anders Blomdell <anders.blomdell@control.lth.se>
Reviewed-on: http://review.gluster.org/8383
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-by: Anand Avati <avati@redhat.com>
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When building the current master branch on EPEL-5, the following error
is observed:
CC dht_layout_unittest-dht_layout_mock.o
unittest/dht_layout_mock.c:77:2: error: no newline at end of file
make[5]: *** [dht_layout_unittest-dht_layout_mock.o] Error 1
make[5]: *** Waiting for unfinished jobs....
EPEL-5 has this gcc:
$ gcc --version
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-54)
The fix is simple enough, dht_layout_unittest-dht_layout_mock.c should
have a line ending.
BUG: 1124858
Change-Id: I8ca7a1699fd1c35694073b9577f94ae525854713
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/8392
Reviewed-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Luis Pabon <lpabon@redhat.com>
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Change-Id: Ie792875546b4f8e11ebf870a6e63aaf5cb221976
BUG: 1121920
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/8344
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Additional check to check if we created the linkto
file before deleting it in the rename cleanup function
Change-Id: I919cd7cb24f948ba4917eb9cf50d5169bb730a67
BUG: 1117851
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/8338
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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The current code assumes cmockery2 is installed in default paths.
Use PKG_MODULES_CHECK to find it using pkg-config if it is not. If
not found by pkg-config, try AC_CHECK_LIB.
There are also some build flag adjustement so that local overrides
do not loose the required -I flags.
This includes and enhance http://review.gluster.org/8340/
BUG: 764655
Change-Id: Ide9f77d1e70afe3c1c5c57ae2b93127af6a425f9
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/8365
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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This patch fixes changelog capturing internal FOPs in a cascaded
setup, where the intermediate master would record internal FOPs
(generated by DHT on link()/rename()). This is due to I/O happening
on the intermediate slave on geo-replication's auxillary mount with
client-pid -1. Currently, the internal FOP capturing logic depends
on client pid being non-negative and the presence of a special key
in dictionary. Due to this, internal FOPs on an inter-mediate master
would be recorded in the changelog. Checking client-pid being
non-negative was introduced to capture AFR self-heal traffic in
changelog, thereby breaking cascading setups. By coincidence,
AFR self-heal daemon uses -1 as frame->root->pid thereby making
is hard to differentiate b/w geo-rep's auxillary mount and self-heal
daemon.
Change-Id: Ib7bd71e80dd1856770391edb621ba9819cab7056
BUG: 1122037
Original-Author: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Kotresh H R <khiremat@redhat.com>
Reviewed-on: http://review.gluster.org/8347
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Erasure Code xlator requires MMX instruction set.
Disable building it if MMX is missing.
BUG: 764655
Change-Id: Id9fe87db33e00c5630c1f3633ebd50fc4ebaec4d
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/8366
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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disperse module fails to compile since
ENODATA is non-existent on FreeBSD/Darwin
Use errno conversion in compat-errno.h to avoid
build issues.
Change-Id: I8203b7195c198c77202bde9bbec1813a487f923a
BUG: 1111774
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8320
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com>
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CID list:
1226163 Logically dead code
1226166 Missing break in switch
1226167 Missing break in switch
1226168 Missing break in switch
1226169 Missing break in switch
1226170 Missing break in switch
1226171 Missing break in switch
1226172 Missing break in switch
1226173 Missing break in switch
1226174 Missing break in switch
1226175 Missing break in switch
1226176 Missing break in switch
1226177 Missing break in switch
1226178 Data race condition
1226179 Data race condition
1226180 Data race condition
1226181 Thread deadlock
1226182 Uninitialized pointer read
1226183 Uninitialized pointer read
1226184 Read from pointer after free
Change-Id: I4d33aa42289371927175c43bb29e018df64fb943
BUG: 789278
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/8317
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This patch will allow for developers to create unit tests for
their code. Documentation has been added to the patch and
is available here:
doc/hacker-guide/en-US/markdown/unittest.md
Also, unit tests are run when RPM is created.
This patch is a replacement for http://review.gluster.org/#/c/7281
which removed unit test infrastucture from the repo due to multiple
conflicts. Cmockery2 is now available in Fedora and EPEL, and soon
to be available in Debian and Ubuntu. For all other operating
systems, please install from the source:
https://github.com/lpabon/cmockery2
BUG: 1067059
Change-Id: I1b36cb1f56fd10916f9bf535e8ad080a3358289f
Signed-off-by: Luis Pabón <lpabon@redhat.com>
Reviewed-on: http://review.gluster.org/7538
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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was successful.
Problem: In case a mkdir sees EEXIST on a non-hashed subvol it reports
error to the application.
Change-Id: I44b2f32fc1069e609d788b6d25b9366b1460395c
BUG: 1114557
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/8203
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Anders Blomdell <anders.blomdell@control.lth.se>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Explanation of Race between rebalance processes:
https://bugzilla.redhat.com/show_bug.cgi?id=1110694#c4
STATE 1: BRICK-1
only one brick Cached File
in the system
STATE 2:
Add brick-2 BRICK-1 BRICK-2
STATE 3: Lookup of File on brick-2
by this node's rebalance
will fail because hashed
file is not created yet.
So dht_lookup_everywhere is
about to get called.
STATE 4: As part of lookup
link file at brick-2
will be created.
STATE 5: getxattr to check that
cached file belongs to
this node is done
STATE 6:
dht_lookup_everywhere_cbk detects
the link created by rebalance-1.
It will unlink it.
STATE 7: getxattr at the link
file with "pathinfo" key
will be called will fail
as the link file is deleted
by rebalance on node-2
Fix:
So in the STATE 6, we should avoid the deletion of link file. Every time
dht_lookup_everywhere gets called, lookup will be performed on all the nodes.
So to avoid STATE 6, if linkto file is found, it is not deleted until valid
case is found in dht_lookup_everywhere_done.
Case 1: if linkto file points to cached node, and cached file exists,
uwind with success.
Case 2: if linkto does not point to current cached node, and cached file
exists:
a) Unlink stale link file
b) Create new link file
Case 3: Only linkto file exists:
Delete linkto file
Case 4: Only cached file
Create link file (Handled event without patch)
Case 5: Neither cached nor hashed file is present
Return with ENOENT (handled even without patch)
Change-Id: Ibf53671410d8d613b8e2e7e5d0ec30fc7dcc0298
BUG: 1116150
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/8231
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>
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In case a file is not found in its cached subvol we proceed with
dht_lookup_everywhere. But as we dont add the linkto xattr to the
dictionary, we fail to identify any linkto file encountered.The
implication being we end up thinking the linkto file as a regular file
and proceed with the fop.
Change-Id: Iab02dc60e84bb1aeab49182f680c0631c33947e2
BUG: 1117923
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/8277
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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If two clients try to rename the same file at the same time, we
sometimes end up with *no file at all* in either the old or new
location. That's kind of bad. The culprit seems to be some overly
aggressive cleanup code. AFAICT, based on today's study of the code,
the intent of the changed section is to remove any linkfile we might
have created before the actual rename. However, what we're removing
might not be our extra link. If we're racing with another client that's
also doing a rename, it might be the only remaining link to the user's
data. The solution, which is good enough to pass this test but almost
certainly still not complete, is to be more selective about when we do
this unlink. Now, we only do it if we know that, at some point, we did
in fact create the link without error (notably ENOENT on the source or
EEXIST on the destination) ourselves.
Change-Id: I8d8cce150b6f8b372c9fb813c90be58d69f8eb7b
BUG: 1117851
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/8269
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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- NetBSD/Darwin doesn't implement ffsll()
- use Compiler builtin
Change-Id: Iee78b4b81747b0bd3877fd2fcb98746f642ce080
BUG: 764655
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8308
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-by: Justin Clift <justin@gluster.org>
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afr does itransform by taking the list of entries given by client xlator
to separate list but doesn't free that list.
Change-Id: Ibb4d38b4934b2bb924385c88f9d7942fad933cb9
BUG: 1117243
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8261
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
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Calculation of layouts now considers the size of each brick, so that
smaller bricks don't get an "unfair" share of allocations and start
returning ENOSPC while the larger bricks still have plenty of space.
The observation has been made that some clients might get ENOTCONN when
trying to fetch disk-size information, and end up calculating layouts
differently. The following meta-observations can be made.
(1) This scenario is extremely unlikely in configurations with AFR.
(2) The most likely consequence of this scenario is that some files will
be placed sub-optimally by the client with the obsolete (non-weighted)
layout. They'll still be found anyway, so this isn't a show stopper.
(3) Without this patch it's *guaranteed* that some files will be placed
sub-optimally, because any layout that fails to account for brick sizes
is sub-optimal.
(4) We shouldn't be doing fix-layout from two nodes simultaneously
anyway. That's inefficient at best. Any instances of such behavior are
separate bugs, which should be fixed separately.
(5) In the most extreme edge case, two nodes doing weighted and
non-weighted layout fixes could race and end up creating an internally
inconsistent layout. This condition is still transient; it will be
detected and repaired automatically the next time anyone fetches the
layout. (If it's not that's also a preexisting bug that can show up in
other contexts.)
In conclusion, it's not the purpose of this patch to fix bugs elsewhere
in DHT. Its purpose is to make life incrementally better for users who
add new hardware with larger disks etc. than the older equipment. It's
only one part of an ongoing process to improve layout management and
repair, all the way up to support for multiple hash rings or tiering.
Change-Id: I05eb6f9eface9cdaf8622e0260c8c7f29020447f
BUG: 1114680
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/8093
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Changed the log level of a message from none to debug as none does
not print a log level in the log file.
Change-Id: I463d1095d69bbd0036958282da13cb8e0226f34f
BUG: 1116797
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/8253
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I293917501d5c2ca4cdc6303df30cf0b568cea361
BUG: 1118629
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/7749
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Added a log which logs the new layout which will be used
for the directory self healing
It prints:
a) Subvolume name
b) Error --> Is needed because layout healing depends on
the error and having it in log will help in
debugging
c) Start Starting of the layout range
d) Stop Ending of the layout range
Change-Id: I48c9c697716a899165ed29b737362a75c62e09b3
BUG: 1113066
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/8173
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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- Provides a working Gluster Management Daemon, CLI
- Provides a working GlusterFS server, GlusterNFS server
- Provides a working GlusterFS client
- execinfo port from FreeBSD is moved into ./contrib/libexecinfo
for ease of portability on NetBSD. (FreeBSD 10 and OSX provide
execinfo natively)
- More portability cleanups for Darwin, FreeBSD and NetBSD
- Provides a new rc script for FreeBSD
Change-Id: I8dff336f97479ca5a7f9b8c6b730051c0f8ac46f
BUG: 1111774
Original-Author: Mike Ma <mikemandarine@gmail.com>
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8141
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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Change-Id: I96e9feb88443fcd7da40c33c0e8c4e2645b1fcf3
BUG: 1096047
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/7872
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Write operations on directories with quota enabled used to fail with
EINVAL on stripe volumes. This was due to assert failure in
stripe_lookup(), meant to ensure loc->path is not NULL. However,
in nameless lookup (in this particular case triggered by quotad, which
has stripe xlator in its graph), loc->path can be legitimately NULL.
The fix involves removing this check in stripe_lookup().
Change-Id: Ibbd4f68763fdd8a85f29da78b3937cef1ee4fd1e
BUG: 1100050
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/8145
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Changed the description of AFR_MSG_SUBVOL_UP to make it more meaningful.
Change-Id: I30fa13c2e9a280a22d48e777d259d04a3b71deef
BUG: 1075611
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/8149
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Till we separated the scenario of a file/directory not existing from
parent not existing [1], we used to include a subvolume in the layout
of a directory even if it is not present on that subvolume. This was
done to allow a lookup racing with mkdir to create correct layout.
However, there are other scenarios as well where a directory is not
present. One such situation is trying to create a directory after an
add-brick. Since there is no guarantee that all the ancestors are
created after an add-brick (and hence directory cannot be created), the
newly added brick should not be part of the layout. However, we used to
consider newly added brick as part of layout (even before we do
fix-layout of all the ancestors) and this was the root cause of [2].
With [1], this issue got fixed and hence [2] got fixed too. However,
[1] is not complete in the sense we didn't modify rmdir codepath
appropriately. This patch fixes that gap.
[1] http://review.gluster.org/6322
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1006809
Change-Id: I79ab96bb8abb6f3d90bb6e235a1c465e1be0fd19
BUG: 1032894
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/8142
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>
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Problem:
In a stripe volume, symlinks are created only on the first brick via the
default_symlink() call. During gfid lookup, server sends ESTALE from the other
bricks, which is treated as error in stripe_lookup_cbk()
Fix:
Don't treat ESTALE as error in stripe_lookup_cbk()
Change-Id: Ie4ac8f0dfd3e61260161620bdc53665882e7adbd
BUG: 1111454
Signed-off-by: Ravishankar N <root@ravi3.(none)>
Reviewed-on: http://review.gluster.org/8135
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Removed trailing spaces from the code
Change-Id: I427c9a01b514824f903e301863c2c29071db6483
BUG: 1075611
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/8096
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Problem:
The function depends on the fact that if quota-deem-statfs option is enabled,
all of the subvolumes send their xdata with quota-deem-statfs flag ON. But,
this may not be true in case of errors in some of the subvolumes.
There is a decision/policy made which assumes quota-deem-statfs to be ON if at
least ONE of the subvolumes sends the flag ON. By this, df reports quota
modified statfs values if *at least ONE* of the bricks sends the
quota-deem-statfs flag ON. This can be visualized with the below "Transition
Diagram/State Machine".
Event: Each Quota deem statfs status from the individual bricks
Action: Decision taken on the calculation of the statvfs received
State: Whether quota deem statfs is ON or OFF (0: OFF, 1: ON)
Input: Event from individual bricks
___ ___
/ \ OFF* / \ (OFF|ON)*
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\ / ON \ /
-----> 0 ----------------> 1
The below Transition Function depicts the relation between the statfs
calculation based on the events received.
State Event action
-------------------------------------
OFF OFF OFF
OFF ON REPLACE
ON OFF NEGLECT
ON ON COMPARE
Change-Id: I0e8fb7d3945a3ca3dde0bb99de6cd397e27a3162
BUG: 1048786
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/6652
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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Problem: Currently in the nameless lookup code path, if at the
end of the lookup, even if it detects that layout
anamolies are there, layout healing will not be done as
there is no code to heal it.
So there can be race between mkdir and lookup.
Assume mkdir is going on from some other mount point,
Say, M1. Directories are created on some nodes but layout
is not set yet.
Now from M2, nameless lookup goes, lookup will be success
full as the directory is present on some of the nodes, but
it won't heal layout. Now if create goes after lookup fop,
because layout is absent, file creation will fail.
Fix: Included the code of layout self-heal in the nameless
lookup path. At the end of lookup, layout will be computed
as it would have been in the named lookup, but it will be
set to those node only, where directory is present.
So after that if create fop goes, the probabiliy to get the
subvolume with proper hash-range is high now, so reduces
the race window.
Other: Whenever a directory is created, we have to choose a brick
from which we start allocating layout in a circular fashion.
To calculate this starting brick, I have changed the candidate
from name of the directory to gfid of the directory
But to compute where a given file belongs, we will still
use the name of the file. Hash computed from the name of the
file should belong to any one of the directory-hash-range
Calculation of hash for a file is acting as a consumer and the
setting of directory layout based on gfid is acting as a producer,
which are independent from each other.
Change-Id: I3808c55082cd1b5c72d2c77cbbc063f55aa38bee
BUG: 1095888
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/7493
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I11794eb2adceb88e75864aede450e904431a6273
BUG: 1095888
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/8049
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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parent's inode should be taken from loc->inode.
Change-Id: I979b7333efa93b1e8f4c73ccf048d48e308f9289
BUG: 1104653
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/8073
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Moved all relevant DHT gf_log calls to the new logging
framework.
Change-Id: I3af3cfe0416e332774a6c4ff6a091d006c400af2
BUG: 1075611
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/7929
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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on single brick(non first up subvolume).
Problem: If snapshot is taken, when mkdir has succeeded only on
hashed_subvolume, then after restoring snapshot the directory
is not shown on mount point.
Why: dht_readdirp takes only those directory entries in to
account, which are present on first_up_subvolume. Hence, if the
"hashed subvolume" is not same as first_up_subvolume, it wont be listed
on mount point and also not healed.
Solution:
Case 1: (Rebalance not running)If hashed subvolume is NULL or down then
filter in first_up_subvolume. Other wise the corresponding hashed subvolume
will take care of the directory entry.
Case 2: If readdirp_optimize option is turned on then read from first_up_subvol
Change-Id: Idaad28f1c9f688dbfb1a8a3ab8b244510c02365e
BUG: 1092433
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/7599
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Due to race condition, it may so happen that, gfid obtained
in readdirp and gfid found by lookup are different for a given
name. in that case do no allow the rebalance.
Readdirp of an entry will bring the gfid, which will be stored
in the inode through inode_link, and when lookup is done and
gfid brought by lookup is different from the one stored in the
inode, client3_3_lookup_cbk will return ESATLE and error will be
captured by rebalance process.
Change-Id: Iad839177ef9b80c1dd0e87f3406bcf4cb018e6fa
BUG: 1104653
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/7973
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Problems with fuse/server:
Fuse loc touch up sets loc->name even when pargfid
is not known. Server lookup does (pargfid, name) based
lookup when name is set ignoring the gfid. Because of this server
resolver finds that the lookup came on (null-pargfid, name) and
fails the lookup with EINVAL.
Fix:
Don't set loc->name in loc_touchup if the pargfid is not known.
Did the same even for server-resolver
Problem with afr:
Lets say there is a directory hierarchy a/b/c/d on the mount and the
user is cd'ed into the directory. Bring down one of the bricks of replica and
remove all directories/files to simulate disk replacement on that brick. Now
this brick is brought back up. Creates on the cd'ed directory fail with ESTALE.
Basically before sending a create of 'f' inside 'd', fuse sends a lookup to
make sure the file is not present. On one of the bricks 'd' is present and
'f' is not so it sends ENOENT as response. On the new brick 'd' itself is not
present. So it sends ESTALE. In afr ESTALE is considered to be special errno on
witnessing which lookup has to fail. And ESTALE is given more priority than
ENOENT. Due to these reasons lookup fails with ESTALE rather than ENOENT. Since
lookup didn't fail with ENOENT, 'create' can't be issued so the command is
failed with ESTALE.
Solution:
Afr needs to consider ESTALE errno normally and ENOENT needs to
be given more priority so that operations like create can proceed even when
only one of the brick is up and running. Whenever client xlator identifies
that gfid-changed, it sets that information in lookup xdata. Afr uses this
information to fail the lookup with ESTALE so that top xlator can send
fresh lookup.
Change-Id: Ica6ce01baef08620154050a635e6f97d51029ef6
BUG: 1106408
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8015
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Fixed in this patch:
[glusterfs/extras/geo-rep/gsync-sync-gfid.c:105]: (error) Resource leak: fp
[glusterfs/libglusterfs/src/xlator.c:651]: (error) Uninitialized variable: gfid
[glusterfs/libglusterfs/src/xlator.c:652]: (error) Uninitialized variable: gfid
[glusterfs/xlators/cluster/ha/src/ha.c:2699]: (error) Possible null pointer dereference: priv
[glusterfs/xlators/features/changelog/src/changelog.c:1464]: (error) Possible null pointer dereference: priv
[glusterfs/xlators/mgmt/glusterd/src/glusterd-mgmt-handler.c:865]: (error) Possible null pointer dereference: ctx
[glusterfs/xlators/mgmt/glusterd/src/glusterd-mgmt-handler.c:194]: (error) Possible null pointer dereference: ctx
[glusterfs/xlators/mgmt/glusterd/src/glusterd-syncop.c:1408]: (error) Possible null pointer dereference: this
[glusterfs/xlators/mgmt/glusterd/src/glusterd-utils.c:7002]: (error) Possible null pointer dereference: path_tokens
Fixed in 3.4 and 3.5 branch (http://review.gluster.org/#/c/7583/ ,
http://review.gluster.org/#/c/7605/ will be backported in a separate patch)
[glusterfs/xlators/mount/fuse/src/fuse-bridge.c:4688]: (error) Uninitialized variable: finh
[glusterfs/xlators/mount/fuse/src/fuse-bridge.c:3081]: (error) Possible null pointer dereference: state
[glusterfs/xlators/cluster/dht/src/dht-rebalance.c:1719]: (error) Possible null pointer dereference: ctx
[glusterfs/xlators/cluster/stripe/src/stripe.c:4940]: (error) Possible null pointer dereference: local
[glusterfs/xlators/mgmt/glusterd/src/glusterd-replace-brick.c:915]: (error) Resource leak: file
[glusterfs/xlators/mgmt/glusterd/src/glusterd-replace-brick.c:999]: (error) Resource leak: file
[glusterfs/xlators/mgmt/glusterd/src/glusterd-sm.c:248]: (error) Possible null pointer dereference: new_ev_ctx
[glusterfs/xlators/mgmt/glusterd/src/glusterd-utils.c:5297]: (error) Possible null pointer dereference: this
[glusterfs/xlators/mgmt/glusterd/src/glusterd-utils.c:6273]: (error) Possible null pointer dereference: this
[glusterfs/xlators/performance/quick-read/src/quick-read.c:586]: (error) Possible null pointer dereference: iobuf
[glusterfs/xlators/nfs/server/src/nfs-common.c:89]: (error) Dangerous usage of 'volname' (strncpy doesn't always null-terminate it).
False positives
[glusterfs/geo-replication/src/gsyncd.c:99]: (error) Memory leak: str
[glusterfs/geo-replication/src/gsyncd.c:395]: (error) Memory leak: argv
[glusterfs/xlators/nfs/server/src/nlm4.c:1199]: (error) Possible null pointer dereference: fde
[glusterfs/xlators/mgmt/glusterd/src/glusterd-geo-rep.c:1659]: (error) Possible null pointer dereference: command
[glusterfs/xlators/mgmt/glusterd/src/glusterd-utils.c:7001]: (error) Possible null pointer dereference: path_tokens
Insignificant/Don't care
[glusterfs/contrib/uuid/gen_uuid.c:369]: (warning) %ld in format string (no. 2) requires 'long *' but the argument type is 'unsigned long *'.
[glusterfs/contrib/uuid/gen_uuid.c:369]: (warning) %ld in format string (no. 3) requires 'long *' but the argument type is 'unsigned long *'.
[glusterfs/extras/test/test-ffop.c:27]: (error) Buffer overrun possible for long command line arguments.
[glusterfs/xlators/cluster/afr/src/afr-self-heal-common.c:138]: (error) Possible null pointer dereference: __ptr
[glusterfs/xlators/cluster/afr/src/afr-self-heal-common.c:140]: (error) Possible null pointer dereference: __ptr
[glusterfs/xlators/cluster/afr/src/afr-self-heal-common.c:331]: (error) Possible null pointer dereference: __ptr
Change-Id: I7696ed1a2a9553b79f9714e10210a8d563a5abd8
BUG: 1091677
Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-on: http://review.gluster.org/7693
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Problem 1:
In "gf_defrag_handle_hardlink" we used to do setxattr on internal
afr keys. Which lead to afr aborting the op saying "operation not
supported".
Solution : Sending a new xattr with only required keys.
Problem 2:
Hardlink migration tries to create linkto files for 2nd to (n-1)th
hardlink of a file on their respective hashed_subvolumes. It may so
happen that the linkto file already exists on the hashed subvolume
may be due to an earlier lookup or hashed subvolume on the older
graph is same as that on the new graph. Hence any new link call may
fail with EEXIST.
Solution: Will log the message with DEBUG level for EEXIST . Otherwise will
log with ERROR level.
Change-Id: I51f9bfc8cf5b9d8e94a9d614391662fddc0874d4
BUG: 1066798
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/7943
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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PROBLEM:
As part of file creation, DHT sends a statfs call to all of its
sub-volumes and expects in return the local space consumption and
availability on each one of them. This information is used by DHT to
ensure that atleast min-free-disk amount of space is left on each
sub-volume in the event that there ARE other sub-volumes with more
space available.
But when quota-deem-statfs is enabled, quota xlator on every brick
unwinds the statfs call with volume-wide consumption of disk space.
This leads to miscalculation in min-free-disk algo, thereby misleading
DHT at some point, into thinking all sub-volumes have equal available
space, in which case DHT keeps sending new file creates to subvol-0,
causing it to become 100% full at some point although there ARE other
subvols with ample space available.
FIX:
The fix is to make quota_statfs() behave as if quota xlator weren't
enabled, thereby making every brick return only its local consumption
and disk space availability.
Change-Id: I211371a1eddb220037bd36a128973938ea8124c2
BUG: 1099890
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/7845
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I7ec2821c96d4cbff78b4959d9b07019896cc9a2c
BUG: 1075611
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/7840
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Problem:
Because of the condition (err = op_errno), err was set to
zero always and ENOSPC error will be logged always. "dht_check_free_
space" was returning 1 and it was mapped to EPERM in "rebalance_task
_completion".
Solution: Changed the return value in dht_check_free_space to -1
as in rebalance_task_completion op_ret value -1 is mapped to ENOSPC.
And fixed the wrong error condition after syncop_setxattr in
gf_defrag_migrate_data.
Change-Id: I474ea1bef3b1e34c89814ed0091dd02bd5b63737
BUG: 1054703
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/6727
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I54227bcafb6d0d8cf716a679d2a34be7fc916898
BUG: 1078847
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/7306
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: Iecfd3150e4f4e795e3403bcb1ac56340759a37d0
BUG: 1098027
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/7766
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change important (from a diagnostics point of view) log messages to use
the gf_msg() framework.
Change-Id: I0a58184bbb78989db149e67f07c140a21c781bc2
BUG: 1075611
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/7784
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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- Have common place to perform quorum fop wind check
- Check if fop succeeded in a way that matches quorum
to avoid marking changelog in split-brain.
BUG: 1066996
Change-Id: Ibc5b80e01dc206b2abbea2d29e26f3c60ff4f204
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/7600
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
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Change-Id: I635fc0fa955b33590f1c5b4dfec22d591ea8575c
BUG: 1032894
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/6592
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Problem:
If two self-heals are triggered on same inode in
parallel then one inode will be linked and the other
inode will not be linked as an inode with that gfid
is already linked in inode table. Calling inode-forget
on that inode leads to assert failure.
Fix:
Always use linked inode for performing self-heal.
Added inode-forgets in other places as well even though
its not really a memory leak.
Change-Id: Ib84bf080c8cb6a4243f66541ece587db28f9a052
BUG: 1091597
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/7567
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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git@forge.gluster.org:~schafdog/glusterfs-core/osx-glusterfs
Working functionality on MacOSX
- GlusterD (management daemon)
- GlusterCLI (management cli)
- GlusterFS FUSE (using OSXFUSE)
- GlusterNFS (without NLM - issues with rpc.statd)
Change-Id: I20193d3f8904388e47344e523b3787dbeab044ac
BUG: 1089172
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Signed-off-by: Dennis Schafroth <dennis@schafroth.com>
Tested-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Dennis Schafroth <dennis@schafroth.com>
Reviewed-on: http://review.gluster.org/7503
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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In setattr, the inode times may have been explicitly set "back
in time". In such cases, if the inode ctx times are not force
set, then they continue to be higher and continue serving the
higher/older value in future calls to dht_inode_ctx_time_update()
Change-Id: I9cbfa7cf7c4069b0106d1f462de08c5d59bc91b5
BUG: 1083324
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/7378
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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