| Commit message (Collapse) | Author | Age | Files | Lines |
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Change-Id: I3059f3b577f550c92fb77c6b6b44defd0584cd2e
BUG: 1230647
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/11178
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This fixes the ping-pong issue i.e files getting demoted immediately
after promition, caused by off-sync promotion/demotion processes.
The solution is do promotion/demotion refering to the system time.
To have the fix working all the file serving nodes should have
thier system time synchronized with each other either manually or
using a NTP Server.
NOTE: The ping-pong issue can re-appear even with this fix, if the admin
have different promotion freq period and demotion freq period, but this
would be under the control of the admin.
Change-Id: I1b33a5881d0cac143662ddb48e5b7b653aeb1271
BUG: 1218717
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/11110
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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For a tiered volume the cold subvolume is always at a fixed
position in the graph. DHT's layout array, on the other hand,
may have the cold subvolume in either the first or second
index, therefore code cannot make any assumptions. The fix
searches the layout for the correct position dynamically
rather than statically.
The bug manifested itself in NFS, in which a newly attached
subvolume had not received an existing directory. This case
is a "stale entry" and marked as such in the layout for
that directory. The code did not see this, because it
looked at the wrong index in the layout array.
The fix also adds the check for decomissioned bricks, and
fixes a problem in detach tier related to starting the
rebalance process: we never received the right defrag
command and it did not get directed to the tier translator.
Change-Id: I77cdf9fbb0a777640c98003188565a79be9d0b56
BUG: 1214289
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11092
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Problem:
When a file is renamed and the (renamed)file's Hashing
falls into a different brick, DHT creates a special file(linkto file)
in the brick(Hashed subvolume) and carries out setattr operation
on that file.
Currently, Changelog records this(setattr) operation in Hashed
subvolume. glusterfind in turn records this operation
as MODIFY operation.
So, there is a NEW entry in Cached subvolume and MODIFY entry
in Hashed subvolume for the same file.
Solution:
Avoid logging setattr operation carried out, by
marking the operation as internal fop using xdata.
In changelog translator, check whether setattr is set
as internal fop and skip accordingly.
Change-Id: I21b09afb5a638b88a4ccb822442216680b7b74fd
BUG: 1230007
Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com>
Reviewed-on: http://review.gluster.org/11137
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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Problem:
While files are being created if more than redundancy number of bricks
go down, then unlock for these fops do not go to the bricks. This will
lead to stale locks leading to hangs.
Fix:
Wind unlock fops at all costs.
Change-Id: I50a87e8b4d6d2dde5bf7405b82e3aeecd95ad00e
BUG: 1220348
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/11152
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
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Volume set option related to tier volume can only be set
for tier volume, also currently all volume set i for tier
option accepts a non-negative integer. This patch validate
both condition.
Change-Id: I3611af048ff4ab193544058cace8db205ea92336
BUG: 1216960
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10751
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Joseph Fernandes
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Problem:
1) ec_access/ec_readlink_/ec_readdir[p] _cbks are trying to recover only from
ENOTCONN.
2) When the fop succeeds it unwinds right away. But when its
ec_fop_manager resumes, if the number of bricks that are up is less than
ec->fragments, the the state machine will resume with -EC_STATE_REPORT which
unwinds again. This will lead to crashes.
Fix:
- If fop fails retry on other subvols, as ESTALE/ENOENT/EBADFD etc are also
recoverable.
- unwind success/failure in _cbks
Change-Id: I2cac3c2f9669a4e6160f1ff4abc39f0299303222
BUG: 1228952
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/11111
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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failed on src
Test bug-948686.t was causing shd to dump core due to gfid being NULL.
This was due to the volume being stopped while index heal's in progress,
causing afr_selfheal_unlocked_lookup_on() to fail sometimes on the src brick
with ENOTCONN. And when afr_selfheal_newentry_mark() copies the gfid off the
src iatt, it essentially copies null gfid. This was causing the assertion
as part of xattrop in protocol/client to fail.
Change-Id: I237a0d6b1849e4c48d7645a2cc16d9bc1441ef95
BUG: 1229172
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/11119
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I264e47ca679d8b57cd8c80306c07514e826f92d8
BUG: 1193388
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
Reviewed-on: http://review.gluster.org/10784
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
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Problem:
ec_update_size_version expects all the keys it did xattrop with to come in
response so that it can set the values again in ec_update_size_version_done.
But EC_XATTR_DIRTY is not combined so the value won't be present in the
response. So ctx->post/pre_dirty are not updated in
ec_update_size_version_done. So these values are still non-zero. When
ec_unlock_now is called as part of flush's unlock phase it again tries to
perform same xattrop for EC_XATTR_DIRTY. But ec_update_size_version is not
expected to be called in unlock phase of flush because ec_flush_size_version
should have reset everything to zero and unlock is never invoked from
ec_update_size_version_done for flush/fsync/fsyncdir. This leads to stale lock
which leads to hang.
Fix:
EC_XATTR_DIRTY is removed in ex_xattrop_cbk and is never combined with other
answers. So remove handling of this in the response.
Change-Id: If0ea3efec3235a6e312465d8838585fbe752c7ea
BUG: 1227654
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/11078
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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afr-v1 had the following volume set options that are used to enable/ disable
self-heals from happening in AFR xlator when loaded in the client graph:
cluster.metadata-self-heal
cluster.data-self-heal
cluster.entry-self-heal
In afr-v2, these 3 heals can happen from the client if there is an inode
refresh. This patch allows such heals to proceed only if the corresponding
volume set options are set to true.
Change-Id: I8d97d6020611152e73a269f3fdb607652c66cc86
BUG: 1226507
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/11012
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Stashing additional information in the inode_ctx to help
decide whether the migration information is stale, which could
happen if a file was migrated several times but FOPs only detected
the P1 migration phase. If no FOP detects the P2 phase, the inode
ctx1 is never reset.
We now save the src subvol as well as the dst subvol in the
inode ctx. The src subvol is the subvol on which the FOP was sent
when the mig info was set in the inode ctx. This information is
considered stale if:
1. The subvol on which the current FOP is sent is the same as
the dst subvol in the ctx
2. The subvol on which the current FOP is sent is not the same
as the src subvol in the ctx
This does not handle the case where the same file might have been
renamed such that the src subvol is the same but the dst subvol
is different. However, that is unlikely to happen very often.
Change-Id: I05a2e9b107ee64750c7ca629aee03b03a02ef75f
BUG: 1142423
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/10834
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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The destination subvol used in the fop2 variants is either stored in
inode-ctx1 or local->cached_subvol. However, it is not guaranteed that
a value stored in these locations before invocation of fop2 is still
present after the invocation as these locations are shared among
different concurrent operations. So, to preserve the atomicity of
"check dst-subvol and invoke fop2 variant if dst-subvol found", we
pass down the dst-subvol to fop2 variant.
This patch also fixes error handling in some fop2 variants.
Change-Id: Icc226228a246d3f223e3463519736c4495b364d2
BUG: 1142423
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/10943
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
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A previous patch (http://review.gluster.org/10974) introduced a
bug that caused that some metadata differences could not be
detected in some circumstances. This could cause that self-heal
is not triggered and the file not repaired.
We also need to consider all differences for lookup requests, even
if there isn't any lock. Special handling of differences in lookup
is already done in lookup specific code.
Change-Id: I3766b0f412b3201ae8a04664349578713572edc6
BUG: 1225793
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/11018
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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gcc v5.1.1 throws warning for calling a static function from a
non-static inline function.
<snippet from compiler warning>
CC tier.lo
tier.c:610:15: warning: 'tier_migrate_using_query_file' is static but used in inline function 'tier_migrate_files_using_qfile' which is not static
ret = tier_migrate_using_query_file ((void *)query_cbk_args);
^
tier.c:585:47: warning: 'tier_process_brick_cbk' is static but used in inline function 'tier_build_migration_qfile' which is not static
ret = dict_foreach (args->brick_list, tier_process_brick_cbk,
^
tier.c:565:176: warning: 'demotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:565:158: warning: 'promotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:563:58: warning: 'demotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:563:40: warning: 'promotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
ret = remove (GET_QFILE_PATH (is_promotion));
^
CCLD tier.la
</snip>
Change-Id: I46046feeb79ab4e2724b0ba6b02c9ec8b121ff4e
BUG: 1226881
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11032
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Anoop C S <achiraya@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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Pretty much a classic case. STRIPE_STACK_UNWIND frees the "local"
structure. In the "virtual xattr" path, used for lock recovery among
other things, we were calling STRIPE_STACK_UNWIND and then continuing to
clean up "our" parts of the just-freed structure. Oops.
Change-Id: Ifa961b89cd21a2893de39a9eea243d184f9eac46
BUG: 1222317
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/11037
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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The new rebalance performance improvements added new
datastructures which were not initialized in the
tier case. Function dht_find_local_subvol_cbk() needs
to accept a list built by lower level DHT translators
in order to build the local subvolumes list.
Change-Id: Iab03fc8e7fadc22debc08cd5bc781b9e3e270497
BUG: 1222088
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10795
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Currently with commit 4eaaf5 a mixed version cluster would
have issues if lookup-uhashed is set to auto, as older clients
would fail to validate the layouts if newer clients (i.e 3.7 or
upwards) create directories. Also, in a mixed version cluster
rebalance daemon would set commit hash for some subvolumes and
not for the others.
This commit fixes this problem by moving the enabling of the
functionality introduced in the above mentioned commit to a
new dht option. This option also has a op_version of 3_7_1
thereby preventing it from being set in a mixed version
cluster. It brings in the following changes,
- Option can be set only if min version of the cluster is
3.7.1 or more
- Rebalance and mkdir update the layout with the commit hashes
only if this option is set, hence ensuring rebalance works in a
mixed version cluster, and also directories created by newer
clients do not cause layout errors when read by older clients
- This option also supersedes lookup-unhased, to enable the
optimization for lookups more deterministic and not conflict
with lookup-unhashed settings.
Option added is cluster.lookup-optimize, which is a boolean.
Usage: # gluster volume set VOLNAME cluster.lookup-optimize on
Change-Id: Ifd1d4ce3f6438fcbcd60ffbfdbfb647355ea1ae0
BUG: 1222126
Signed-off-by: Shyam <srangana@redhat.com>
Reviewed-on: http://review.gluster.org/10797
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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setattr call post mkdir(selfheal) ends up using the mode bits
returned by mkdir,which miss the required suid, sgid and sticky bit.
Hence, the fix is to use the mode bits from local->stbuf which was used
to create the missing directories.
Change-Id: I478708c80e28edc6509b784b0ad83952fc074a5b
BUG: 1110262
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/8208
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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When we did a graph switch on a rebalance daemon, a second call
to gf_degrag_start() was done. This lead to multiple threads
doing migration. When multiple threads try to move the same
file there can be deadlocks.
Change-Id: I931ca7fe600022f245e3dccaabb1ad004f732c56
BUG: 1226005
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10977
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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When ec combines iatt structures from multiple bricks, it checks
for equality in important fields. This is ok for iatt related to
inodes involved in the operation that have been locked before
starting execution. However some fops return iatt information
from other inodes. For example a rename locks source and destination
parent directories, but it also returns an iatt from the entry
itself.
In these cases we ignore differences in some fields to avoid false
detection of inconsistencies and trigger unnecessary self-heals.
Another issue is solved in this patch that caused that the real
size of the file stored into the inode context was lost during
self-heal.
Change-Id: I8b8eca30b2a6c39c7b9bbd3b3b6ba95228fcc041
BUG: 1225793
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/10974
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: NetBSD Build System
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Instead of including config.h in each file, and have the additional
config.h included from the compiler commandline (-include option).
When a .c file tests for a certain #define, and config.h was not
included, incorrect assumtions were made. With this change, it can not
happen again.
BUG: 1222319
Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/10808
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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When promotion/demotion daemon starts, it uses the same pidfile
as rebalance. This patch will introduce a different pid file
for the same.
Change-Id: Ic484c53f51e00ae6b2d697748a9600b14829e23b
BUG: 1221970
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/10792
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
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Change-Id: Ic92d25db68e40ef4a4388ef42affd1b3ee5a7ec6
BUG: 1221270
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/10773
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
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Coverity CID 1291727.
Guenther
Change-Id: I95f01b638f74370f0ef04383f0f9d5799abe31f5
BUG: 789278
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-on: http://review.gluster.org/10300
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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If a file is under migration, any xattrs created on it
are lost post migration of the file. This is because
the xattrs are set only on the cached subvol of the source
and as the source is under migration, it becomes a linkto file
post migration.
Change-Id: Ib8e233b519cf954e7723c6e26b38fa8f9b8c85c0
BUG: 1193636
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/10212
Tested-by: NetBSD Build System
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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phase 2 of migration.
linkto xattr on source file cannot be relied to find where the data
file currently resides. This can happen if there are multiple
migrations before phase 2 detection by a client. For eg.,
* migration (M1, node1, node2) starts.
* application writes some data. DHT correctly stores the state in
inode context that phase-1 of migration is in progress
* migration M1 completes
* migration (M2, node2, node3) is triggered and completed
* application resumes writes to the file. DHT identifies it as phase-2
of migration. However, linkto xattr on node1 points to node2, but
the file is on node3. A lookup correctly identifies node3 as cached
subvol
TBD:
When we identify phase-2 of a previous migration (say M1), there
might be a migration in progress - say (M3, node3, node4). In this
case we need to send writes to both (node3, node4) not just
node3. Also, the inode state needs to correctly indicate that its in
phase-1 of migration. I'll send this as a different patch.
Change-Id: I1a861f766258170af2f6c0935468edb6be687b95
BUG: 1142423
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/10805
Tested-by: NetBSD Build System
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Problem:
afr_read_txn() bails out if read_subvol==-1. This meant that for
directories that were in entry split-brain, FOPS like readdir, access,
stat etc were not allowed.
Fix:
Except for getxattr, all other FOPS are wound on the first up child
of afr.
Change-Id: Iacec8fbb1e75c4d2094baa304f62331c81a6f670
BUG: 1221481
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/10776
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Reviewed-by: Anuradha Talur <atalur@redhat.com>
Tested-by: NetBSD Build System
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Change-Id: I7ec29428b7f7ef249014f948a5d616bfb8aaf80d
BUG: 1225491
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/10946
Tested-by: NetBSD Build System
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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EC uses an eager lock mechanism to optimize multiple read/write
requests on the same entry or inode. This increases performance
but can have adverse results when other clients try to access the
same entry/inode.
To solve this, this patch adds a functionality to detect when this
happens and force an earlier release to not block other clients.
The method consists on requesting GF_GLUSTERFS_INODELK_COUNT and
GF_GLUSTERFS_ENTRYLK_COUNT for all fops that take a lock. When this
count is greater than one, the lock is marked to be released. All
fops already waiting for this lock will be executed normally before
releasing the lock, but new requests that also require it will be
blocked and restarted after the lock has been released and reacquired
again.
Another problem was that some operations did correctly lock the
parent of an entry when needed, but got the size and version xattrs
from the entry instead of the parent.
This patch solves this problem by binding all queries of size and
version to each lock and replacing all entrylk calls by inodelk ones
to remove concurrent updates on directory metadata. This also allows
rename to correctly update source and destination directories.
Change-Id: I2df0b22bc6f407d49f3cbf0733b0720015bacfbd
BUG: 1165041
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/10852
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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ec_heal creates ec_fop_data but doesn't run ec_manager. ec_fop_data_allocate
adds this fop to ec->pending_fops, because ec_manager is not run on this heal
fop it is never removed from ec->pending_fops. When it is accessed after free
it leads to crash. It is better to not to add HEAL fops to ec->pending_fops
because we don't want graph switch to hang the mount because of a BIG
file/directory heal.
BUG: 1188145
Change-Id: I8abdc92f06e0563192300ca4abca3909efcca9c3
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10868
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
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When a delayed lock is pending, a graph switch doesn't correctly
terminate it. This means that the update of version and size xattrs
is lost, causing EIO errors.
This patch handles GF_EVENT_PARENT_DOWN event to correctly finish
pending udpdates before completing the graph switch.
Change-Id: I394f3b8d41df8d83cdd36636aeb62330f30a66d5
BUG: 1188145
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/10787
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Change-Id: Ia1834ec23d5de615526d4d4e4d2e32aff155b7f7
BUG: 1211962
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10806
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
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We should load libgfdb.so.0, not libgfdb.so
Change-Id: I7a0d64018ccd9893b1685de391e99b5392bd1879
BUG: 1222092
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10796
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Joseph Fernandes
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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When a blocking lock is requested, lock request is succeeded even when
ec->fragment number of locks are acquired successfully in non-blocking locking
phase. This will lead to fop succeeding only on the bricks where the locks are
acquired, leading to the necessity of self-heals. To prevent these un-necessary
self-heals, if the remaining locks fail with EAGAIN in non-blocking lock phase
try blocking locking phase instead.
Change-Id: I940969e39acc620ccde2a876546cea77f7e130b6
BUG: 1221145
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10770
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
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The rebalance process determines the local subvols for the
node it is running on and only acts on files in those subvols.
If a dist-rep or dist-disperse volume is created on 2 nodes by
dividing the bricks equally across the nodes, one process might
determine it has no local_subvols.
When trying to update the commit hash, the function attempts to
lock all local subvols. On the node with no local_subvols the dht
inode lock operation fails, in turn causing the rebalance to fail.
In a dist-rep volume with 2 nodes, if brick 0 of each replica
set is on node1 and brick 1 is on node2, node2 will find that it has
no local subvols.
Change-Id: I7d73b5b4bf1c822eae6df2e6f79bd6a1606f4d1c
BUG: 1221696
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/10786
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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CID : 1124521
Change-Id: Ie524935d636195cb6894074095b9b98fe28dbc2c
BUG: 789278
Signed-off-by: Manikandan Selvaganesh <mselvaga@redhat.com>
Reviewed-on: http://review.gluster.org/10348
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Sakshi Bansal
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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In afr_lookup_xattr_req_prepare(), dict_copy was
done even though source dict was NULL.
Change-Id: I85a5d2823ba021e7f78c1ce13402a0f16b08cb51
BUG: 1220332
Signed-off-by: Anuradha <atalur@redhat.com>
Reviewed-on: http://review.gluster.org/10755
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Change-Id: I646367581d8ee8a9e5966ee302b19273a0c780ff
BUG: 1220329
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/10756
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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The key concept here is to determine whether a directory is "clean" by
comparing its last-known-good topology to the current one for the
volume. These are stored as "commit hashes" on the directory and the
volume root respectively. The volume's commit hash changes whenever a
brick is added or removed, and a fix-layout is done. A directory's
commit hash changes only when a full rebalance (not just fix-layout)
is done on it. If all bricks are present and have a directory
commit hash that matches the volume commit hash, then we can assume
that every file is in its "proper" place. Therefore, if we look for
a file in that proper place and don't find it, we can assume it's not
on any other subvolume and *safely* skip the global (broadcast to all)
lookup.
Change-Id: Id6ce4593ba1f7daffa74cfab591cb45960629ae3
BUG: 1219637
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Signed-off-by: Shyam <srangana@redhat.com>
Reviewed-on: http://review.gluster.org/7702
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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When a file does not exist on a brick but it does on others, there
could be problems trying to access it because there was some loc_t
structures with null 'pargfid' but 'name' was set. This forced
inode resolution based on <pargfid>/name instead of <gfid> which
would be the correct one. To solve this problem, 'name' is always
set to NULL when 'pargfid' is not present.
Another problem was caused by an incorrect management of errors
while doing incremental locking. The only allowed error during an
incremental locking was ENOTCONN, but missing files on a brick can
be returned as ESTALE. This caused an EIO on the operation.
This patch doesn't care of errors during an incremental locking. At
the end of the operation it will check if there are enough successfully
locked bricks to continue or not.
Change-Id: I9360ebf8d819d219cea2d173c09bd37679a6f15a
BUG: 1176062
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/9407
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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When freeing memory, our memory-accounting code expects to be able to
dereference from the (previously) allocated block to its owning
translator. However, as we have already found once in option
validation and twice in logging, that translator might itself have
been freed and the dereference attempt causes on of our daemons to
crash with SIGSEGV. This patch attempts to fix that as follows:
* We no longer embed a struct mem_acct directly in a struct xlator,
but instead allocate it separately.
* Allocated memory blocks now contain a pointer to the mem_acct
instead of the xlator.
* The mem_acct structure contains a reference count, manipulated in
both the normal and translator allocate/free code using atomic
increments and decrements.
* Because it's now a separate structure, we can defer freeing the
mem_acct until its reference count reaches zero (either way).
* Some unit tests were disabled, because they embedded their own
copies of the implementation for what they were supposedly testing.
Life's too short to spend time fixing tests that seem designed to
impede progress by requiring a certain implementation as well as
behavior.
Change-Id: Id929b11387927136f78626901729296b6c0d0fd7
BUG: 1211749
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/10417
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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A few log messages in dht directory self heal at log level INFO are useful
only for developers and these logs tend to casue excessive logs in our
log files. Hence moving the log level of such logs to DEBUG.
Change-Id: I8a543f4ddeb5c20b2978a0f7b18d8baccc935a54
BUG: 1217949
Signed-off-by: Vijay Bellur <vbellur@redhat.com>
Reviewed-on: http://review.gluster.org/10281
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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This fix adds support to view the number of promoted or demoted
files from the cli. The mechanism is isolmorphic to checking
the status of volumes being rebalanced.
gluster volume rebalance <vol> tier status
Change-Id: I1b11ca27355ceec36c488967c23531202030e205
BUG: 1213063
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10292
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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- With this change, the xattr will represent if the file needs to be healed or
not. It will have different values for data/entry and metadata changes.
- inode ref leaks and dict_set_dynstr related leaks fixed
- Added support for trylock/lock based on heal-cmd execution or not
in data heal.
- Made fixes to pass regression runs
Change-Id: I9d8def4c2badde18a76b7898816fecfac113737a
BUG: 1215265
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10385
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Data self-heal:
1) Take inode lock in domain 'this->name:self-heal' on 0-0 range (full file),
So that no other processes try to do self-heal at the same time.
2) Take inode lock in domain 'this->name' on 0-0 range (full file),
3) perform fxattrop+fstat and get the xattrs on all the bricks
3) Choose the brick with ec->fragment number of same version as source
4) Truncate sinks
5) Unlock lock taken in 2)
5) For each block take full file lock, Read from sources write to the sinks, Unlock
6) Take full file lock and see if the file is still sane copy i.e. File didn't become unusable while the bricks are offline.
Update mtime to before healing
7) xattrop with -ve values of 'dirty' and difference of highest and its own
version values for version xattr
8) unlock lock acquired in 6)
9) unlock lock acquired in 1)
Change-Id: I6f4d42cd5423c767262c9d7bb5ca7767adb3e5fd
BUG: 1215265
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10384
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Metadata self-heal:
1) Take inode lock in domain 'this->name' on 0-0 range (full file)
2) perform lookup and get the xattrs on all the bricks
3) Choose the brick with highest version as source
4) Setattr uid/gid/permissions
5) removexattr stale xattrs
6) Setxattr existing/new xattrs
7) xattrop with -ve values of 'dirty' and difference of highest and its own
version values for version xattr
8) unlock lock acquired in 1)
Entry self-heal:
1) take directory lock in domain 'this->name:self-heal' on 'NULL' to prevent
more than one self-heal
2) we take directory lock in domain 'this->name' on 'NULL'
3) Perform lookup on version, dirty and remember the values
4) unlock lock acquired in 2)
5) readdir on all the bricks and trigger name heals
6) xattrop with -ve values of 'dirty' and difference of highest and its own
version values for version xattr
7) unlock lock acquired in 1)
Name heal:
1) Take 'name' lock in 'this->name' on 'NULL'
2) Perform lookup on 'name' and get stat and xattr structures
3) Build gfid_db where for each gfid we know what subvolumes/bricks have
a file with 'name'
4) Delete all the stale files i.e. the file does not exist on more than
ec->redundancy number of bricks
5) On all the subvolumes/bricks with missing entry create 'name' with same
type,gfid,permissions etc.
6) Unlock lock acquired in 1)
Known limitation: At the moment with present design, it conservatively
preserves the 'name' in case it can not decide whether to delete it. this can
happen in the following scenario:
1) we have 3=2+1 (bricks: A, B, C) ec volume and 1 brick is down (Lets say A)
2) rename d1/f1 -> d2/f2 is performed but the rename is successful only on one
of the bricks (Lets say B)
3) Now name self-heal on d1 and d2 would re-create the file on both d1 and d2
resulting in d1/f1 and d2/f2.
Because we wanted to prevent data loss in the case above, the following
scenario is not healable, i.e. it needs manual intervention:
1) we have 3=2+1 (bricks: A, B, C) ec volume and 1 brick is down (Lets say A)
2) We have two hard links: d1/a, d2/b and another file d3/c even before the
brick went down
3) rename d3/c -> d2/b is performed
4) Now name self-heal on d2/b doesn't heal because d2/b with older gfid will
not be deleted. One could think why not delete the link if there is
more than 1 hardlink, but that leads to similar data loss issue I described
earlier:
Scenario:
1) we have 3=2+1 (bricks: A, B, C) ec volume and 1 brick is down (Lets say A)
2) We have two hard links: d1/a, d2/b
3) rename d1/a -> d3/c, d2/b -> d4/d is performed and both the operations are
successful only on one of the bricks (Lets say B)
4) Now name self-heal on the 'names' above which can happen in parallel can
decide to delete the file thinking it has 2 links but after all the
self-heals do unlinks we are left with data loss.
Change-Id: I3a68218a47bb726bd684604efea63cf11cfd11be
BUG: 1213358
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10298
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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CID: 1223229
The 'loc' ptr is not checked before
dereferencing, which is handled.
Change-Id: Icf668150bde190e6f1b9f58a038099338516efe8
BUG: 789278
Signed-off-by: arao <arao@redhat.com>
Reviewed-on: http://review.gluster.org/9666
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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To-Do:
* Make ftruncate work even in the absence of path
* Aggregate and update ia_blocks appropriately when a file is
truncated to a lower size.
Change-Id: Ifd24c2f5e80d2c3bc921261f5481251df8948126
BUG: 1207615
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/10631
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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This change broke the build on NetBSD, FreeBSD, and MacOS X:
http://review.gluster.org/10526/
We restore the build with two fixes:
- Use POSIX-compliant sysconf(_SC_NPROCESSORS_ONLN) to get the
number of processors, instead of Linux specific get_nprocs().
That let us remove Linux-specific #include <sys/sysinfo.h>
- Only define MAX() if it is not already defined. NetBSD defines
it in <sys/param.h> which is already included
BUG: 1129939
Change-Id: I62341c670598670e47ea2f69ab94864f96588b18
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/10652
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>
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