| Commit message (Collapse) | Author | Age | Files | Lines |
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-Minor change to if-else structure to avoid code duplication.
-Added logging in case method calls fails
CID: 1394654
Updates: bz#789278
Change-Id: Ibef4450dc89ddd3bf951303d5b87f503924fd250
Signed-off-by: Barak Sason <bsasonro@redhat.com>
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Fixes: bz#1734370
Change-Id: I29e338bac62104233a6f80212df8d0fb016affda
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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Initialize a dictionary for example seems to be prefectly fine to be done
before taking a lock.
Change-Id: Ib29516c4efa8f0e2b526d512beab488fcd16d2e7
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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This function does length, allocation and serialization for you.
Change-Id: I142a259952a2fe83dd719442afaefe4a43a8e55e
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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Problem:
In case of thin arbiter, before index healer starts crawling the
indices at every heal-timeout interval, even if there is nothing to
be healed it will send an upcall notification to all the clients to
release any AFR_TA_DOM_NOTIFY locks that they hold. SHD will wait
for the upcall to return before proceeding with the heal even though
there is nothing to be healed. This will also invalidates the cached
information about the bricks states on the clients which leads to
extra calls on TA from clients for the next reads & writes if needed.
This will impact the IO performance.
Fix:
- Before sending the upcall to the clients, check for any pending heals
on TA without taking any locks.
- If there is nothing marked bad on TA, then continue with the index
crawl to heal any dirty markings present on the files due to any post-op
failure.
- If there is a brick marked as bad on TA, then take the
AFR_TA_DOM_NOTIFY lock on TA from SHD, get the state on TA and
continue with the current healing process.
Change-Id: Ieb477bc6cb18bbdfd4e7a0453c5ed79b574ec9d6
fixes: bz#1724184
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Problems:
1. When checking for type and gfid mismatch, if the type or gfid
is unknown because of missing gfid handle and the gfid xattr
it will be reported as type or gfid mismatch and the heal will
not complete.
2. If the source selected during entry heal has null gfid the same
will be sent to afr_lookup_and_heal_gfid(). In this function when
we try to assign the gfid on the bricks where it does not exist,
we are considering the same gfid and try to assign that on those
bricks. This will fail in posix_gfid_set() since the gfid sent
is null.
Fix:
If the gfid sent to afr_lookup_and_heal_gfid() is null choose a
valid gfid before proceeding to assign the gfid on the bricks
where it is missing.
In afr_selfheal_detect_gfid_and_type_mismatch(), do not report
type/gfid mismatch if the type/gfid is unknown or not set.
Change-Id: Ia06552e4dc4a9f89cb7f5302833604bd21bbf7da
fixes: bz#1722507
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Network latency is an important factor selecting a read subvolume.
So this patch is adding two new policy.
1) We measure the latency of a child during a GF_DUMP rpc call.
Then use this latency to pick a read subvol having the least
latency.
2) Second one is an hybrid mode where it calculates the effective
latency by multiplying outstanding pending read request and
latency, and choose the least one.
Change-Id: Ia49c8a08ab61f7dcdad8b8950aa4d338e7accf97
fixes: #520
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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We should free the mem_pool local_pool during an afr_fini.
Otherwise this will lead to mem leak for shd
Change-Id: I805a34a88077bf7b886c28b403798bf9eeeb1c0b
Updates: bz#1716695
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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There are many include statements that are not needed.
A previous more ambitious attempt failed because of *BSD plafrom
(see https://review.gluster.org/#/c/glusterfs/+/21929/ )
Now trying a more conservative reduction.
It does not solve all circular deps that we have, but it
does reduce some of them. There is just too much to handle
reasonably (dht-common.h includes dht-lock.h which includes
dht-common.h ...), but it does reduce the overall number of lines
of include we need to look at in the future to understand and fix
the mess later one.
Change-Id: I550cd001bdefb8be0fe67632f783c0ef6bee3f9f
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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Problem:
We currently don't have a roll-back/undoing of post-ops if quorum is not met.
Though the FOP is still unwound with failure, the xattrs remain on the disk.
Due to these partial post-ops and partial heals (healing only when 2 bricks
are up), we can end up in metadata split-brain purely from the afr xattrs
point of view i.e each brick is blamed by atleast one of the others for
metadata. These scenarios are hit when there is frequent connect/disconnect
of the client/shd to the bricks.
Fix:
Pick a source based on the xattr values. If 2 bricks blame one, the blamed
one must be treated as sink. If there is no majority, all are sources. Once
we pick a source, self-heal will then do the heal instead of erroring out
due to split-brain.
This patch also adds restriction of all the bricks to be up to perform
metadata heal to avoid any metadata loss.
Removed the test case tests/bugs/replicate/bug-1468279-source-not-blaming-sinks.t
as it was doing metadata heal even when only 2 of 3 bricks were up.
Change-Id: I07a9d62f84ceda329dcab1f02a33aeed258dcb09
fixes: bz#1717819
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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In function "afr_selfheal_entry_granular", after completing the
heal we are not destroying the frame. This will lead to crash.
when we execute statedump operation, where it tried to access
xlator object. If this xlator object is freed as part of the
graph destroy this will lead to an invalid memory access
Change-Id: I0a5e78e704ef257c3ac0087eab2c310e78fbe36d
fixes: bz#1708926
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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We were not properly cleaning self-heal daemon resources
during ec fini. With shd multiplexing, it is absolutely
necessary to cleanup all the resources during ec fini.
Change-Id: Iae4f1bce7d8c2e1da51ac568700a51088f3cc7f2
fixes: bz#1703948
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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- pass fop state instead of afr local to
afr_ta_dom_lock_check_and_release()
- avoid afr_lock_release_synctask() being called simultaneosuly from
notify code path and transaction (post-op) code path due to races.
- Check if the post-op on TA is valid based on event_gen checks.
- Invalidate in-memory information when we get TA child down.
Note: Thi patch addresses some pending review comments of commit
053b1309dc8fbc05fcde5223e734da9f694cf5cc
(https://review.gluster.org/#/c/glusterfs/+/20095/)
fixes: bz#1698449
Change-Id: I2ccd7e1b53362f9f3fed8680aecb23b5011eb18c
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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I was working on a blog about troubleshooting AFR issues and I wanted to copy
the messages logged by self-heal for my blog. I then realized that AFR-v2 is not
logging *before* attempting data heal while it logs it for metadata and entry
heals.
I [MSGID: 108026] [afr-self-heal-entry.c:883:afr_selfheal_entry_do]
0-testvol-replicate-0: performing entry selfheal on
d120c0cf-6e87-454b-965b-0d83a4c752bb
I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal]
0-testvol-replicate-0: Completed entry selfheal on
d120c0cf-6e87-454b-965b-0d83a4c752bb. sources=[0] 2 sinks=1
I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal]
0-testvol-replicate-0: Completed data selfheal on
a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1
I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do]
0-testvol-replicate-0: performing metadata selfheal on
a9b5f183-21eb-4fb3-a342-287d3a7dddc5
I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal]
0-testvol-replicate-0: Completed metadata selfheal on
a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1
Adding it in this patch. Now there is a 'performing' and a corresponding
'Completed' message for every type of heal.
fixes: bz#1707746
Change-Id: I0b954cf1e17b48280aefa76640b5119b92133d61
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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Fixed coverity error, "Unchecked return value (CHECKED_RETURN)".
Checking return value & logging error message if afr_set_pending_dict
fails.
updates: bz#789278
Change-Id: Iab7da6b4f3cd0622b95b8e1c412b007a330467e5
Signed-off-by: Rinku Kothiya <rkothiya@redhat.com>
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Updates: bz#1624701
Change-Id: I7152c28ad85925abccdcc4cd6de8cb2a2b847a51
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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When eager-lock lock acquisition fails because of say network failures, the
local is not being removed from owners_list, this leads to accumulation of
waiting frames and the application will hang because the waiting frames are
under the assumption that another transaction is in the process of acquiring
lock because owner-list is not empty. Handled this case as well in this patch.
Added asserts to make it easier to find these problems in future.
fixes bz#1696599
Change-Id: I3101393265e9827755725b1f2d94a93d8709e923
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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memdup() and gf_memdup() have the same implementation. Removed one API
as the presence of both can be confusing.
Change-Id: I562130c668457e13e4288e592792872d2e49887e
updates: bz#1193929
Signed-off-by: Vijay Bellur <vbellur@redhat.com>
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This patch address post-merge review comments for commit
5784a00f997212d34bd52b2303e20c097240d91c
Change-Id: I7ed954664a2ae8e1091d23ee3ceb9c66e83bfeac
fixes: bz#1697930
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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When split-brain choice is changed from one brick to another
brick, inode-invalidate is not called so readv call is served
from cache leading to failures in split-brain-resolution.t.
Fixed it by calling inode_invaldate() when this happens.
updates bz#1193929
Change-Id: I2624614eec38c0303f3e1dc55dfae3d4b864218b
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Found missing assignment of lk-owner for an inodelk/entrylk before winding
the fops. locks xlator at the moment allows this operation. This leads to
multiple threads in the same client being able to get locks on the inode
because lk-owner is same and transport is same. So isolation with locks can't
be achieved. To fix it, we need locks xlator change which will disallow
null-lk-owner based inodelk/entrylk/lk. To achieve that we need to first
fix all the places which do this mistake.
updates bz#1624701
Change-Id: Ic3431da3f451a1414f1f4fdcfc4cf41e555f69dd
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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- Fixes afr_ta_read_txn() to handle inode refresh failures.
code-path.
- Fixes a double free issue of dict.
Note: This patch address post-merge review comments for commit
69532c141be160b3fea03c1579ae4ac13018dcdf
fixes: bz#1686398
Change-Id: Id5299b45b68569d47df6b73755918237a1592cb4
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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client-pid for glustershd is GF_CLIENT_PID_SELF_HEALD
client-pid for glfsheal is GF_CLIENT_PID_GLFS_HEALD
updates: bz#1689250
Change-Id: Ib3a863af160ff48c822a5e6b0c27c575c9887470
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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updates bz#1193929
Change-Id: I01b60d644f517c00a1bcc127bf9a8ed90b6eb7a0
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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In afr_ta_post_op_do, we were sending EIO for every failure.
However, the original error code should be sent.
Change-Id: I9fdc15dac00d758baf8e6f14db244f526481a63a
updates: bz#1686711
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
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Problem:
In an arbiter volume configuration SHD will not send any writes onto the arbiter
brick even if there is data pending marker for the arbiter brick. If we have a
arbiter setup on the geo-rep master and there are data pending markers for the files
on arbiter brick, SHD will not mark any data changelog during healing. While syncing
the data from master to slave, if the arbiter-brick is considered as ACTIVE, then
there is a chance that slave will miss out some data. If the arbiter brick is being
newly added or replaced there is a chance of slave missing all the data during sync.
Fix:
If there is data pending marker for the arbiter brick, send truncate on the arbiter
brick during heal, so that it will record truncate as the data transaction in changelog.
Change-Id: I3242ba6cea6da495c418ef860d9c3359c5459dec
fixes: bz#1686568
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Problem:
Currently even if open & opendir fails on quorum number of bricks,
but succeeds on atleast one brick, it will result in success. This leads
to inconsistency in the behaviour with other operations following the
open, which has quorum checks.
Fix:
Add quorum checks to open & opendir fops to avoid inconsistency.
Change-Id: If8fcb82072a6dc45ea6d4a6754b79763215eba2a
fixes: bz#1634664
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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As afr_changelog_fsync is used for internal operations, use
GLUSTERFS_INTERNAL_FOP_KEY so that lease xlator can avoid treating
it as conflicting fop and recall lease.
Change-Id: I52cdc161002e840199d24439231a8bfa4f98b1b6
updates: bz#1648768
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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We were not properly cleaning self-heal daemon resources
during afr fini. This patch will clean the same.
Change-Id: I597860be6f781b195449e695d871b8667a418d5a
updates: bz#1659708
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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If a fop to create an entry fails on one of the data brick,
we mark the pending changelog on the entry on brick for which
it was successful. This is done as part of post op phase to
make sure that entry gets healed even if it gets renamed to
some other path where its parent was not marked as bad.
As it happens as part of post op, we should consider thin-arbiter
to check if the brick, which was successful, is the good brick or not.
This will avoide split brain and other issues.
Change-Id: I12686675be98f02f70a5186b3ed748c541514d53
updates: bz#1662264
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
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Mostly, unlock before logging.
In some cases, moved different code that was not needed
to be under lock (for example, taking time, or malloc'ing)
to be executed before taking the lock.
Note: logging might be slightly less accurate in order, since it may
not be done now under the lock, so order of logs is racy. I think
it's a reasonable compromise.
Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Change-Id: I2438710016afc9f4f62a176ef1a0d3ed793b4f89
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Automatic Splitbrain with size as policy must
not resolve splitbrains when the copies are of same size.
Determining if the sizes of copies are same and
returning -1 in that case.
updates: bz#1655052
Change-Id: I3d8e8b4d7962b070ed16c3ee02a1e5a926fd5eab
Signed-off-by: Iraj Jamali <ijamali@redhat.com>
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In automatic Splitbrain resolution when favorite child policy
is set as size, split brain resolution must not work for
directories.
Currently, if a directory is in split brain with both copies
having same size, the source is selected arbitrarily
and healed.
fixes: bz#1655050
Change-Id: I5739498639c17c89874cc577362e543adab55f5d
Signed-off-by: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
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This maybe one mistake when coding.
Fixes: bz#1665332
Change-Id: Ia8f8dadf4a71579240ff9950b141ca528bd342b3
Signed-off-by: Xiubo Li <xiubli@redhat.com>
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This patch fixes memory leak reported by ASan.
The fix was first merged by
https://review.gluster.org/#/c/glusterfs/+/21805.
But later change was reverted due to this patch
https://review.gluster.org/#/c/glusterfs/+/21178/.
updates: bz#1633930
Change-Id: I1febe121e0be33a637397a0b54d6b78391692b0d
Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
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With this changeset, default value for the AFR client side
heal volume option is set to "off"
fixes: bz#1663102
Change-Id: Ie4016932339c4896487e3e7cb5caca68739b7ba2
Signed-off-by: Sunil Kumar Acharya <sheggodu@redhat.com>
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For implementing copy_file_range fop, AFR needs to perform two inodelks in the
same transaction. This patch brings in the necessary structure to make it
easier to do so.
Entry-locks in AFR were already taking multiple entry-locks on different inodes
with the respective basenames. This patch extends the logic in inodelks to use
the same lockee_t structure. This lead to removal of quite a lot of duplicate
code present in afr-lk-common.c as both the locks are doing same things except
'winding' part.
updates: #536
Change-Id: Ibfce7e3f260bb27b18645152ec680c33866fe0ae
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Problem: When trying to convert a plain distribute volume to replica-3
or arbiter type it is failing with ENOTCONN error as the lookup on
the root will fail as there is no quorum.
Fix: Allow lookup on root if it is coming from the ADD_REPLICA_MOUNT
which is used while adding bricks to a volume. It will try to set the
pending xattrs for the newly added bricks to allow the heal to happen
in the right direction and avoid data loss scenarios.
Note: This fix will solve the problem of type conversion only in the
case where the volume was mounted at least once. The conversion of
non mounted volumes will still fail since the dht selfheal tries to
set the directory layout will fail as they do that with the PID
GF_CLIENT_PID_NO_ROOT_SQUASH set in the frame->root.
Change-Id: Ic511939981dad118cc946754341318b164954b3b
fixes: bz#1655854
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Added '-Wvla' and saw this - gcc doesn't like variable arrays.
There are plenty of others in the EC code, but this seems OK to remove:
there is no use for the array members (I hope - that was from reading
the code).
Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Change-Id: I350f4520e52b86c8bbcd60eea1b27ef99cd119aa
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updates bz#1650403
Change-Id: Ib5a11e691599ce4bd93c1ed5aca6060592893961
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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In a previous patch (https://review.gluster.org/20769) we've
added the key length to be passed to dict_* funcs, to remove the need
to strlen() it. This patch moves some xlators to use it.
- In some cases, moved strlen() of the key length outside of locks,
which is usually a good thing. Please verify it's safe to do so.
- In some cases, created a prefix for the keys, replacing something like
"%d-%d" with a "%s" in snprintf(). Not sure it adds value, but improves
readability.
Please review carefully.
Compile-tested only!
Change-Id: I04f2a1eb2ecfc3283d849d150d10d088ae7aa7f1
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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Traceback:
Direct leak of 765 byte(s) in 9 object(s) allocated from:
#0 0x7ffb9cad2c48 in malloc (/lib64/libasan.so.5+0xeec48)
#1 0x7ffb9c5f8949 in __gf_malloc ./libglusterfs/src/mem-pool.c:136
#2 0x7ffb9c5f91bb in gf_vasprintf ./libglusterfs/src/mem-pool.c:236
#3 0x7ffb9c5f938a in gf_asprintf ./libglusterfs/src/mem-pool.c:256
#4 0x7ffb826714ab in afr_get_heal_info ./xlators/cluster/afr/src/afr-common.c:6204
#5 0x7ffb825765e5 in afr_handle_heal_xattrs ./xlators/cluster/afr/src/afr-inode-read.c:1481
#6 0x7ffb825765e5 in afr_getxattr ./xlators/cluster/afr/src/afr-inode-read.c:1571
#7 0x7ffb9c635af7 in syncop_getxattr ./libglusterfs/src/syncop.c:1680
#8 0x406c78 in glfsh_process_entries ./heal/src/glfs-heal.c:810
#9 0x408555 in glfsh_crawl_directory ./heal/src/glfs-heal.c:898
#10 0x408cc0 in glfsh_print_pending_heals_type ./heal/src/glfs-heal.c:970
#11 0x408fc5 in glfsh_print_pending_heals ./heal/src/glfs-heal.c:1012
#12 0x409546 in glfsh_gather_heal_info ./heal/src/glfs-heal.c:1154
#13 0x403e96 in main ./heal/src/glfs-heal.c:1745
#14 0x7ffb99bc411a in __libc_start_main ../csu/libc-start.c:308
The dictionary is referenced by caller to print the status.
So set it as dynstr, the last unref of dictionary will free it.
updates: bz#1633930
Change-Id: Ib5a7cb891e6f7d90560859aaf6239e52ff5477d0
Signed-off-by: Kotresh HR <khiremat@redhat.com>
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- this->itable always needs to be allocated, hence move it outside
afr_selfheal_daemon_init().
- Invoke afr_selfheal_daemon_init() only for self-heal daemon case.
- remove redundant itable allocation in afr_discover().
- destroy itable in fini.
Updates bz#1193929
Change-Id: Ib28b50b607386f5a5aa7d2f743c8b506ccb10eae
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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Since rename/link fops on a file will not change any data in it, it should
not update the read_subvol values in the inode_ctx, which interprets the
data & metadata readable subvols for that file. The old read_subvol values
should be retained even after the rename/link operations.
Change-Id: I068044a426823a566f5bea8aa063cd689199d6dd
fixes: bz#1657783
Signed-off-by: karthik-us <ksubrahm@redhat.com>
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Problem reported by Coverity: Leak of memory or pointers to
system resources.
Deallocate the memory pointed to by xattr_serz as the memory
reference is not stored anywhere.
Fixes CID: 1124760, 124787, 1382418
Change-Id: Ib9c2ef28c52e2d43de2552cfd959a98b26272bc1
updates: bz#789278
Signed-off-by: Bhumika Goyal <bgoyal@redhat.com>
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Fixes: #164
Change-Id: I93ad6f0232a1dc534df099059f69951e1339086f
Signed-off-by: Amar Tumballi <amarts@redhat.com>
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libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.
Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation <> in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs
This change although big, is just moving around the headers and
making it correct when including these headers from other sources.
This helps us correctly include libglusterfs includes without
namespace conflicts.
Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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Problem:
If parent dir is in split-brain or has dirty xattrs set, and the file
has gfid missing on one of the bricks, then name heal won't assign the
gfid.
Fix:
Use the brick we select the gfid from as the 'source'.
Note: Problem was found while trying to debug a split-brain issue on
Cynthia Zhou's setup.
updates: bz#1637249
Change-Id: Id088d4f0fb017aa35122de426654194e581ed742
Reported-by: Cynthia Zhou <cynthia.zhou@nokia-sbell.com>
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
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It seems there were quite a few unused enums (that in turn
cause unndeeded memory allocation) in some xlators.
I've removed them, hopefully not causing any damage.
Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Change-Id: I8252bd763dc1506e2d922496d896cd2fc0886ea7
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afr_open stores the fd as part of its local->cont.open struct
but when it calls ftruncate (if open flags contain O_TRUNC), the
corresponding cbk function (afr_ open_ftruncate_cbk) is
incorrectly referencing uninitialized local->fd. This patch fixes
the same.
Change-Id: Icbdedbd1b8cfea11d8f41b6e5c4cb4b44d989aba
updates: bz#1648687
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
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