| Commit message (Collapse) | Author | Age | Files | Lines |
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Updating the layout in the dht inode_ctx in
rebalance_task_completion after the file is migrated
is erroneous in case of files with hardlinks.
This step can be skipped as the layout will be set
in the syncop_lookup call post the migration in
dht_migrate_file.
Change-Id: I24ac798a919585d91a117d6a207e6a31b88486c6
BUG: 1415761
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: https://review.gluster.org/16457
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
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The estimates will be logged to the rebalance log on running
gluster v rebalance <vol> status
Change-Id: I9d51b139cd4c8dfde1ff2c2050720ae606c13fc6
BUG: 1396004
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15893
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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tierd is implemented by separating from rebalance process.
The commands affected:
1) Attach tier will trigger this process instead of old one
2) tier start and tier start force will also trigger this process.
3) volume status [tier] will show tier daemon as a process instead
of task and normal tier status and tier detach status works.
4) tier stop implemented.
5) detach tier implemented separately along with new detach tier
status
6) volume tier volname status will work using the changes.
7) volume set works
This patch has separated the tier translator from the legacy
DHT rebalance code. It now sends the RPCs from the CLI
to glusterd separate to the DHT rebalance code.
The daemon is now a service, similar to the snapshot daemon,
and can be viewed using the volume status command.
The code for the validation and commit phase are the same
as the earlier tier validation code in DHT rebalance.
The “brickop” phase has been changed so that the status
command can use this framework.
The service management framework is now used.
DHT rebalance does not use this framework.
This service framework takes care of :
*) spawning the daemon, killing it and other such processes.
*) volume set options , which are written on the volfile.
*) restart and reconfigure functions. Restart is to restart
the daemon at two points
1)after gluster goes down and comes up.
2) to stop detach tier.
*) reconfigure is used to make immediate volfile changes.
By doing this, we don’t restart the daemon.
it has the code to rewrite the volfile for topological
changes too (which comes into place during add and remove brick).
With this patch the log, pid, and volfile are separated
and put into respective directories.
Change-Id: I3681d0d66894714b55aa02ca2a30ac000362a399
BUG: 1313838
Signed-off-by: hari gowtham <hgowtham@redhat.com>
Reviewed-on: http://review.gluster.org/13365
Smoke: Gluster Build System <jenkins@build.gluster.org>
Tested-by: hari gowtham <hari.gowtham005@gmail.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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BUG: 1410355
Change-Id: I867419ca36a81ef7209e6911a46c1c2c898b8eab
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/16328
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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race: readdirp has read one entry, and doing a lookup on
that entry, but user might have renamed/removed that entry just
after readdirp but before lookup.
Since remove-brick is a costly opertaion,will ingore any
ENOENT/ESTALE failures and move on.
Change-Id: I62c7fa93c0b9b7e764065ad1574b97acf51b5996
BUG: 1408115
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/15846
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
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Problem: A hard link is lost during rebalance + lookup.Rebalance skip files
if file has hardlink.In dht_migrate_file __is_file_migratable ()
function checks if a file has hardlink, if yes file is not migrated
but if link is created after call this function then link will lost.
Solution: Call __check_file_has_hardlink to check hardlink existence after (S+T) bits
in migration process ,if file has hardlink then skip the file for
migrate rebalance process.
BUG: 1396048
Change-Id: Ia53c07ef42f1128c2eedf959a757e8df517b9d12
Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
Reviewed-on: http://review.gluster.org/15866
Reviewed-by: Susant Palai <spalai@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Raghavendra G found that posix is trying to print %s
but passing an int when HEALTH_CHECK fails in posix.
These are the kind of bugs that should be caught
at compilation itself.
Also fixed the problematic gf_event() callers.
BUG: 1386097
Change-Id: Id7bd6d9a9690237cec3ca1aefa2aac085e8a1270
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/15671
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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The rebalance event code was using strtok to parse the
volume name which is incorrect.
Reworked the code to get the correct volume name using
strstr.
Change-Id: Ib5f3305a34e6bf1ecfef677d87c5aff96bdeb0e6
BUG: 1388010
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15712
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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The rebalance process will now send an event when it is
complete.
Also fixed a problem where the run-time was not always
set causing spurious rebalance failure events to be sent.
Change-Id: Ib445171c78c9560940022bca20c887d31a9bb1ca
BUG: 1371874
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/15501
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Change-Id: Id0af15a2aec96bdbe675b4c959b56f0fc8e72504
BUG: 1341948
Signed-off-by: ankit <anraj@redhat.com>
Reviewed-on: http://review.gluster.org/15345
Tested-by: ankitraj
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Add events for:
* tier attach and detach
* tier pause and resume
* tier rising and dropping hi and lo watermarks
Update eventskeygen.py with tiering events.
Update cli help with:
* attach: add optional force argument
* detach: make force available as non-optional argument on its own
Change-Id: I43990d3a8742151a4a7889bafa19cb572fe661bd
BUG: 1368336
Signed-off-by: Milind Changire <mchangir@redhat.com>
Reviewed-on: http://review.gluster.org/15232
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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Problems: The maximum number of migratior threads created was static set
to "40". And the number of these threads get created in rebalance depends
on the number of cores user has. If the number of cores exceeds 40, a
crash or memory corruption can be seen.
Fix: Make the migratior thread pool dynamic.
Change-Id: Ifbdac8a1a396363dd75e2f6bcb454070cfdbf839
BUG: 1359711
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/15000
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Return the correct size of the tiered volume in statfs. It should
be the size of the cold tier, not the sum of the hot and cold tier,
because the hot tier is a cache and not an extension of the volume's
capacity. The number of free blocks, etc is the cold tier's capacity
subtracted by the sum of utilization on the hot and cold tiers. Note
if both tiers are part of the same file system this must be accounted
for as well.
The patch also fixes a pre-existing bug in the DHT/tier
translators. If statfs was taken on a file, the code only calculated
free space on the cached subvolume, not all subvolumes in the replica
group. With the fix, this is corrected, except in the case
where quota is used with the deem-statfs option set to "on".
Change-Id: I2b8bcb4511edf83f12130960aad0a609fcf8f513
BUG: 1339689
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/14536
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
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Change-Id: I842a7ea1b286f1b893b200fe647597e7fd0f2105
BUG: 1331720
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/14252
Smoke: Gluster Build System <jenkins@build.gluster.com>
Tested-by: Prasanna Kumar Kalever <pkalever@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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Since rebalance(not remove-brick) process does not migrate hardlinks
mark them as skipped rather than failed as it creates confusion for
the users.
Change-Id: I5d469d10146274f00bb91482d0373c5235a9b8b2
BUG: 1339071
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/14493
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Smoke: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
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Previously we had wrongly placed the clearing tier-fix-layout-complete
xattr before the joining of migration threads. This would lead to
situations where failure of clearing the xattr would cause the
premature death of migration threads.
Now we clear the xattr only after the data movement threads join,
ensuring that all migration is done.
Change-Id: I829b671efa165ae13dbff7b00707434970b37a09
BUG: 1334839
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/14285
Smoke: Gluster Build System <jenkins@build.gluster.com>
Tested-by: Joseph Fernandes
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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During detach check if background fixlayout is done, if not done ignore
the case and continue detach.
Change-Id: I5d5cfc0e73d0eb217fdeab54c432dc4af8bc598d
BUG: 1332136
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/14147
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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Change-Id: Id0e7400c8ae950c90d42a3ddf8b558a14959a1f8
BUG: 1326085
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/14074
Smoke: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
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Problem: On a rebal stop, the migrator threads don't intimate the
crawler thread to wake up in case it is waiting on signal from
migrator thread.
Change-Id: I3cc4be41a4db25f48fee059ebb79a97ee99dcd00
BUG: 1327507
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/14004
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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1. Spawn a thread for background fix-layout for tier process.
2. Once the fix-layout is completed a marker xttr is set on the root of
volume to mark the completion of the background fixlayout, so that
even if the tier process is spawned again, fixlayout will not be
issued, if it was completed last time.
3. Please note that promotion of legacy files will happen eventually as
the ctr lookup heal in the fixlayout slowly heals the ctr db for legacy
files OR the ctr lookup heal happend due to a name lookup.
4. When a detach tier is successful in evacuation data from hot tier, we remove
the marker xattr is removed. So that next attach tier runs the background
tier fixlayout.
what is remaining ?
1. Instead of clearing the marker xattr of tiering fix layout at the end of detach start
clear it during detach commit. But the issue is detach commit is a glusterd operation
and the volume is not mounted in glusterd.
The reason we want to do it in detach commit is that if the admin wants to attach the
same tier again, then a background fixlayout will be triggered, which would not be needed.
2. Clearing the CTR DB of the cold bricks when there is a detach commit, as it will be having
entries which will be stale when the volume is used, with ctr off (ctr is switched off only when
we have detach commit.)
Change-Id: Ibe343572e95865325cd0eef4d0b976b626a3c0c5
BUG: 1313228
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/13491
Smoke: Gluster Build System <jenkins@build.gluster.com>
Tested-by: Joseph Fernandes
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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The dst_fd was being unrefed twice in case the call
to __dht_rebalance_create_dst_file failed.
Change-Id: I56c5aff7fa3827887e67936b8aa1ecbd1a08a9e9
BUG: 1296611
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/13193
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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A query to the database may take a long time if the database
has many entries. The tier daemon also sends IPC calls to the
bricks which can run slowly, espcially in RHEL6. While it is
possible to track down each such instance, the snapshot
feature should not be affected by database operations. It requires
no migration be underway. Therefore it is okay to pause tiering
at any time except when DHT is moving a file. This fix implements
this strategy by monitoring when control passes to DHT to
migrate a file using the GF_XATTR_FILE_MIGRATE_KEY trigger. If it
is not, the pause operation is successful.
Change-Id: I21f168b1bd424077ad5f38cf82f794060a1fabf6
BUG: 1287842
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/13104
Reviewed-by: Joseph Fernandes
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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The start command doesnt restart the tier deamon if the deamon
is running at one node. hence to bring up the tierd on the nodes
where the deamon is down, the force command is implemented.
It skips the check for tierd running.
Change-Id: I0037d3e5ecfe56637d0da201a97903c435d26436
BUG: 1292112
Signed-off-by: hari gowtham <hgowtham@redhat.com>
Reviewed-on: http://review.gluster.org/12983
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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We had run sleep() in the pause tier callback. Blocking within
a synctask is dangerous. The sleep() call does not inform
the synctask scheduler that a thread is no longer running.
It therefore believes it is running. If a second synctask already
exists, it may not be able to run. This occurs if the thread
limit in the pool has been reached.
Note the pool size only grows when a synctask is created, not
when it is moved from wait state to run state, as is the case
when an FOP completes. When the tier is paused during migration,
synctasks already exist waiting for responses to FOPs to the
server with high probability.
The fix is to yield() in the RPC callback, which will place
the synctask into the wait queue and free up a thread for the
FOP callback. A timer wakes the callback after sufficient
time has elapsed for the pause to occur.
Change-Id: I6a947ee04c6e5649946cb6d8207ba17263a67fc6
BUG: 1267950
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12987
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
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During migration if the file is present we just open the file
in hashed subvol. Now if the linkfile present on hashed is just
linkfile to another subvol, we actually open in hashed subvol.
But subsequent operation will go to linkto subvol ie,
to non-hashed subvol. This operation will get failed
since we haven't opened d on non-hashed.
Change-Id: I9753ad3a48f0384c25509612ba76e7e10645add3
BUG: 1292067
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/12980
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Susant Palai <spalai@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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While tier migration, free src and dst fd's when create of
destination or open of source fails.
Change-Id: I62978a669c6c9fbab5fed9df2716b9b2ba00ddf1
BUG: 1291566
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/12969
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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The option tier-max-files represents the maximum number
of files trasferred by a node in a gives cycle. Fix help message
to reflect the "per node" aspect. The code transferred one
more file per cycle than the given value.
Also change the default values of max file and max bytes to
very large values, effectively we will not throttle migration
unless the administrator requests it via CLI.
Change-Id: Ic2949ed3d8c35afe7c9ae4db72195603cfb2e28f
BUG: 1292671
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12984
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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Use seperate local return variable for destination cleanup,
without messing with the function return variable.
Change-Id: Iaea9ed2927234fdb888aef7a31ec362090e98196
BUG: 1290975
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/12956
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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glusterd occasionally loads shared libraries of translators. This
failed for tiering due to a reference to dht_methods which is defined
as a global variable which is not necessary.
The global variable has been removed and this is now a member of
dht_conf and is now initialised in the *_init calls.
Change-Id: Ifa0a21e3962b5cd8d9b927ef1d087d3b25312953
BUG: 1287842
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/12863
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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The current DHT migration code will always delete the
src linkto file after migration as dht always moves
files to the hashed subvol. This is not the case in tiering.
The lack of linkto files causes rename to fail leaving 2 files
with the same name but different gfids on the volume.
Modified to leave the linkto file behind if the source
volume is the hashed subvolume.
Change-Id: I2b99f7d34b4b719aee6232dc40c6a8f8ba88225d
BUG: 1279376
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/12551
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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1. Check if detach is running, disallow detach commit if so.
2. Cleanup shutdown of tier daemon on detach: do not rerun fix-layout,
do not send incorrect status back to glusterd.
Change-Id: I97202f748773c1176396a4ffd32a4c7fa9b9c1bc
BUG: 1279637
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12560
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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During attach tier the commit hash must be copied to the hot tier.
Change-Id: I91b92fd8e98696993433856e1436409b657c439d
BUG: 1277716
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12498
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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At current state rebalance aborts basically on any failure
like fix-layout of a directory, readdirp, opendir etc. Unless it is
not a remove-brick process we can ignore these failures.
Major impact: Any failure in the gf_defrag_process_dir means there
are files left unmigrated in the directory.
Fix-layout(setxattr) failure will impact it's child subtree i.e.
the child subtree will not be rebalanced.
Settle-hash (commit-hash)failure will trigger lookup_everywhere for
immediate children until the next commit-hash.
Note: Remove-brick opertaion is still sensitive to any kind of failure.
Change-Id: I08ab71909bc832f03cc1517172525376f7aed14a
BUG: 1257076
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/12013
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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various xlators and other components are invoking system calls
directly instead of using the libglusterfs/syscall.[ch] wrappers.
If not using the system call wrappers there should be a comment
in the source explaining why the wrapper isn't used.
Change-Id: I1f47820534c890a00b452fa61f7438eb2b3f667c
BUG: 1267967
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/12276
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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On fix-layout heal files are scanned. Files found are exist on the hot or cold
subvolume. Those not found in the cold tier would exist on the hot. They
should not be flagged as an error.
Replace INFO with TRACE for common tier migration logs. Frequent migration
was growing the log files too quickly.
On migratation failures, do not acrue files towards cycle limit's budget.
Change-Id: Ie832ee07c43bce5477ae81c939d1fe8416a11615
BUG: 1275383
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12430
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Joseph Fernandes
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Snaps of tiered volumes cannot handle files undergoing migration.
We implement a helper mechanism to "pause" migration. Any files
undergoing migration are aborted. Clean up is done to remove
sticky bits and data at the destination. Migration is restarted
after snap completes.
For testing an internal switch is added. It is not exposed externally.
gluster volume set vol1 tier-pause [true|false]
Change-Id: Ia85bbf89ac142e9b7e73fcbef98bb9da86097799
BUG: 1267950
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12304
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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dht_migrate_file does not migrate file locks to the dst file.
Any locks held on the source file are lost once the migration
is complete. This issue is magnified in the case of a tier volume
as file migrations occur more frequently and repeatedly as compared
to a DHT rebalance.
The fix makes 2 changes:
1. Before starting the actual migration process, check if there are
any locks held on the file. If yes, do not migrate the file.
2. The rebalance process tries to lock on the entire file just before
moving into the Phase 2 of the file migration. If the lock acquisition
fails, the file migration does not proceed.
If the lock is granted, the file migration proceeds.
This still leaves a small window where conflicting locks can be granted to
different clients. If client1 requests a lock on the src file just after
it is converted to a linkto file and client2 requests a lock on the dst
data file, they will both be granted, but all FOPs will be redirected
to the dst data file. This issue will be taken up in a subsequent patch.
Change-Id: I8c895fc3cced50dd2894259d40a827c7b43d58ac
BUG: 1271148
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/12347
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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Heal hardlink in the db for already existing data in the cold
tier during attach tier. i.e during fix layout do lookup to files
in the cold tier.
CTR xlator on the brick/server side does db update/insert of the hardlink on a namelookup.
Currently the namedlookup is done synchronous to the fixlayout that is
triggered by attach tier. This is not performant, adding more time to
fixlayout. The performant approach is record the hardlinks on a compressed
datastore and then do the namelookup asynchronously later, giving the ctr db
eventual consistency
Change-Id: I4ffc337fffe7d447804786851a9183a51b5044a9
BUG: 1252586
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/11828
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
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This fix introduces infrastructure to support different
policies for promotion and demotion.
Currently the tier feature automatically promotes and demotes
files periodically based on access. This is good for testing
but too stringent for most real workloads. It makes it
difficult to fully utilize a hot tier- data will be demoted
before it is touched- its unlikely a 100GB hot SSD will have
all its data touched in a window of time.
A new parameter "mode" allows the user to pick promotion/demotion
polcies.
The "test mode" will be used for *.t and other general testing.
This is the current mechanism.
The "cache mode" introduces watermarks. The watermarks
represent levels of data residing on the hot tier.
"cache mode" policy:
The % the hot tier is full is called P.
Do not promote or demote more than D MB or F files.
A random number [0-100] is called R.
Rules for migration:
if (P < watermark_low) don't demote, always promote.
if (P >= watermark_low) && (P < watermark_hi) demote if R < P; promote if R > P.
if (P > watermark_hi) always demote, don't promote.
gluster volume set {vol} cluster.watermark-hi %
gluster volume set {vol} cluster.watermark-low %
gluster volume set {vol} cluster.tier-max-mb {D}
gluster volume set {vol} cluster.tier-max-files {F}
gluster volume set {vol} cluster.tier-mode {test|cache}
Change-Id: I157f19667ec95aa1d53406041c1e3b073be127c2
BUG: 1257911
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/12039
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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Change-Id: Ib3911dfa1f950ff9decbe249ad798e97226dd06d
BUG: 1266877
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/12295
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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Change-Id: I37faf983fc02996541f3d96a17cb2a2c2cdb6781
BUG: 1266877
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/12235
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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bool and true conflict with clang macros in clang on Mac OS X,
possibly with newer (?) versions of clang on Linux
Change-Id: Ia8c56ae68b4ebffb99b0684ac72d68ec50eaa7fa
BUG: 1249391
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/11816
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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There are three kinds of inline functions: plain inline, extern inline,
and static inline. All three have been removed from .c files, except
those in "contrib" which aren't our problem. Inlines in .h files, which
are overwhelmingly "static inline" already, have generally been left
alone. Over time we should be able to "lower" these into .c files, but
that has to be done in a case-by-case fashion requiring more manual
effort. This part was easy to do automatically without (as far as I can
tell) any ill effect.
In the process, several pieces of dead code were flagged by the
compiler, and were removed.
Change-Id: I56a5e614735c9e0a6ee420dab949eac22e25c155
BUG: 1245331
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/11769
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
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Posix acls on a linkto file change the file's permission
bits and cause DHT to treat it as a non-linkto file.This
happens on the migration failure of a file on which posix
acls were set.
The fix prevents posix acls from being set on a linkto
file and copies them across only after a file has
been successfully migrated.
Change-Id: Iccf7ff6fba49fe05d691d9b83bf76a240848b212
BUG: 1247563
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Signed-off-by: N Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/12025
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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- fd_unref should decrement fd->inode->fd_count only if it is present in the
inode's fd list.
- successful open/opendir should perform fd_bind.
Change-Id: I81dd04f330e2fee86369a6dc7147af44f3d49169
BUG: 1207735
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/11044
Reviewed-by: Anoop C S <anoopcs@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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DHT rebalance uses the sgid and sticky bits to indicate
that a file is being migrated. These were not removed if
the file migration failed.
The fix resets these bits to the original values.
Change-Id: I9801bfc0bd80c0800251ccd66c1c91a51cffd909
BUG: 1236512
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/11454
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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To avoid setting wrong xattr during creating link file
Change-Id: Iad8de3521eae17e510035ed42e3e01933d647096
BUG: 1250828
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11838
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
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An opendir is done in rebalance. The graph constructed when
EC is used in tiering may have no local volumes (if
all the hot volumes are on one node and all the others on
another node). Previously the opendir only sent fops down
the local subvolumes for migration. They must be sent down
both the hot and cold subvolumes for tiering.
When setxattr2() received a NULL subvolume; this dereferenced
an uninitialized variable.
When a lookup is done during creation of the destination
file, the xattr dict is "polluted" with virtual xattrs.
These cause subsequent xattrs in the new file to not be
written by posix. They are required by EC.
The inode gfid for "entry_loc" in gf_defrag_migrate_single_file()
was not initialized. This made underlying translators
think the gfid was 0, and failed migration.
Change-Id: I6ccda8ca8e43485b9b354341bbfcb302496f632c
BUG: 1236212
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/11433
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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Include iatt to 'syncop_link' args to fetch proper attributes of
the newly linked inode.
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Change-Id: If6b92961bd7a89add3791ed3a9b494087348b492
BUG: 1241788
Reviewed-on: http://review.gluster.org/11611
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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Change-Id: Ib3bb61c5223f409c23c68100f3fe884918d2dc3f
BUG: 1194640
Signed-off-by: arao <arao@redhat.com>
Reviewed-on: http://review.gluster.org/10021
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Joseph Fernandes
Tested-by: Joseph Fernandes
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
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