[Gluster-users] Geo-replication: Entry not present on master. Fixing gfid mismatch in slave
David Cunningham
dcunningham at voisonics.com
Tue Jun 2 03:14:46 UTC 2020
Hi Strahil and Sunny,
Thank you for the replies. I checked the gfid on the master and slaves and
they are the same. After moving the file away and back again it doesn't
seem to be having the issue with that file any more.
We are still getting higher CPU usage on one of the master nodes than the
others. It logs this every few seconds:
[2020-06-02 03:10:15.637815] I [master(worker
/nodirectwritedata/gluster/gvol0):1384:process] _GMaster: Entry Time Taken
MKD=0 MKN=0 LIN=0 SYM=0 REN=0 RMD=0CRE=0 duration=0.0000
UNL=0
[2020-06-02 03:10:15.638010] I [master(worker
/nodirectwritedata/gluster/gvol0):1394:process] _GMaster: Data/Metadata
Time Taken SETA=0 SETX=0 meta_duration=0.0000data_duration=12.7878
DATA=4 XATT=0
[2020-06-02 03:10:15.638286] I [master(worker
/nodirectwritedata/gluster/gvol0):1404:process] _GMaster: Batch Completed
changelog_end=1591067378 entry_stime=(1591067167, 0)
changelog_start=1591067364 stime=(1591067377, 0) duration=12.8068
num_changelogs=2 mode=live_changelog
[2020-06-02 03:10:20.658601] I [master(worker
/nodirectwritedata/gluster/gvol0):1470:crawl] _GMaster: slave's time
stime=(1591067377, 0)
[2020-06-02 03:10:34.21799] I [master(worker
/nodirectwritedata/gluster/gvol0):1954:syncjob] Syncer: Sync Time Taken
duration=0.3826 num_files=8 job=1 return_code=0
[2020-06-02 03:10:46.440535] I [master(worker
/nodirectwritedata/gluster/gvol0):1384:process] _GMaster: Entry Time Taken
MKD=0 MKN=0 LIN=0 SYM=0 REN=1 RMD=0CRE=2 duration=0.1314
UNL=1
[2020-06-02 03:10:46.440809] I [master(worker
/nodirectwritedata/gluster/gvol0):1394:process] _GMaster: Data/Metadata
Time Taken SETA=0 SETX=0 meta_duration=0.0000data_duration=13.0171
DATA=14 XATT=0
[2020-06-02 03:10:46.441205] I [master(worker
/nodirectwritedata/gluster/gvol0):1404:process] _GMaster: Batch Completed
changelog_end=1591067420 entry_stime=(1591067419, 0)
changelog_start=1591067392 stime=(1591067419, 0) duration=13.0322
num_changelogs=3 mode=live_changelog
[2020-06-02 03:10:51.460925] I [master(worker
/nodirectwritedata/gluster/gvol0):1470:crawl] _GMaster: slave's time
stime=(1591067419, 0)
[2020-06-02 03:11:04.448913] I [master(worker
/nodirectwritedata/gluster/gvol0):1954:syncjob] Syncer: Sync Time Taken
duration=0.3466 num_files=3 job=1 return_code=0
Whereas the other master nodes only log this:
[2020-06-02 03:11:33.886938] I [gsyncd(config-get):308:main] <top>: Using
session config file
path=/var/lib/glusterd/geo-replication/gvol0_nvfs10_gvol0/gsyncd.conf
[2020-06-02 03:11:33.993175] I [gsyncd(status):308:main] <top>: Using
session config file
path=/var/lib/glusterd/geo-replication/gvol0_nvfs10_gvol0/gsyncd.conf
Can anyone help with what might cause the high CPU usage on one master
node? The process is this one, and is using 70-100% of CPU:
python2 /usr/lib/x86_64-linux-gnu/glusterfs/python/syncdaemon/gsyncd.py
worker gvol0 nvfs10::gvol0 --feedback-fd 15 --local-path
/nodirectwritedata/gluster/gvol0 --local-node cafs30 --local-node-id
b7521445-ee93-4fed-8ced-6a609fa8c7d4 --slave-id
cdcdb210-839c-4306-a4dc-e696b165ed17 --rpc-fd 12,11,9,13 --subvol-num 1
--resource-remote nvfs30 --resource-remote-id
1e698ccd-aeec-4ec4-96fe-383da8fc3b78
Thank you in advance!
On Sat, 30 May 2020 at 20:20, Strahil Nikolov <hunter86_bg at yahoo.com> wrote:
> Hey David,
>
> for me a gfid mismatch means that the file was replaced/recreated -
> just like vim in linux does (and it is expected for config file).
>
> Have you checked the gfid of the file on both source and destination,
> do they really match or they are different ?
>
> What happens when you move away the file from the slave , does it fixes
> the issue ?
>
> Best Regards,
> Strahil Nikolov
>
> На 30 май 2020 г. 1:10:56 GMT+03:00, David Cunningham <
> dcunningham at voisonics.com> написа:
> >Hello,
> >
> >We're having an issue with a geo-replication process with unusually
> >high
> >CPU use and giving "Entry not present on master. Fixing gfid mismatch
> >in
> >slave" errors. Can anyone help on this?
> >
> >We have 3 GlusterFS replica nodes (we'll call the master), which also
> >push
> >data to a remote server (slave) using geo-replication. This has been
> >running fine for a couple of months, but yesterday one of the master
> >nodes
> >started having unusually high CPU use. It's this process:
> >
> >root at cafs30:/var/log/glusterfs# ps aux | grep 32048
> >root 32048 68.7 0.6 1843140 845756 ? Rl 02:51 493:51
> >python2
> >/usr/lib/x86_64-linux-gnu/glusterfs/python/syncdaemon/gsyncd.py worker
> >gvol0 nvfs10::gvol0 --feedback-fd 15 --local-path
> >/nodirectwritedata/gluster/gvol0 --local-node cafs30 --local-node-id
> >b7521445-ee93-4fed-8ced-6a609fa8c7d4 --slave-id
> >cdcdb210-839c-4306-a4dc-e696b165ed17 --rpc-fd 12,11,9,13 --subvol-num 1
> >--resource-remote nvfs30 --resource-remote-id
> >1e698ccd-aeec-4ec4-96fe-383da8fc3b78
> >
> >Here's what is being logged in
> >/var/log/glusterfs/geo-replication/gvol0_nvfs10_gvol0/gsyncd.log:
> >
> >[2020-05-29 21:57:18.843524] I [master(worker
> >/nodirectwritedata/gluster/gvol0):1470:crawl] _GMaster: slave's time
> > stime=(1590789408, 0)
> >[2020-05-29 21:57:30.626172] I [master(worker
> >/nodirectwritedata/gluster/gvol0):813:fix_possible_entry_failures]
> >_GMaster: Entry not present on master. Fixing gfid mismatch in slave.
> >Deleting the entry retry_count=1 entry=({u'uid': 108, u'gfid':
> >u'7c0b75e5-d8b7-454f-8010-112d613c599e', u'gid': 117, u'mode': 33204,
> >u'entry':
> >u'.gfid/c5422396-1578-4b50-a29d-315be2a9c5d8/00a859f7xxxx.cfg',
> >u'op': u'CREATE'}, 17, {u'slave_isdir': False, u'gfid_mismatch': True,
> >u'slave_name': None, u'slave_gfid':
> >u'ec4b0ace-2ec4-4ea5-adbc-9f519b81917c', u'name_mismatch': False,
> >u'dst':
> >False})
> >[2020-05-29 21:57:30.627893] I [master(worker
> >/nodirectwritedata/gluster/gvol0):813:fix_possible_entry_failures]
> >_GMaster: Entry not present on master. Fixing gfid mismatch in slave.
> >Deleting the entry retry_count=1 entry=({u'uid': 108, u'gfid':
> >u'a4d52e40-2e2f-4885-be5f-65fe95a8ebd7', u'gid': 117, u'mode': 33204,
> >u'entry':
> >u'.gfid/f857c42e-22f1-4ce4-8f2e-13bdadedde45/polycom_00a859f7xxxx.cfg',
> >u'op': u'CREATE'}, 17, {u'slave_isdir': False, u'gfid_mismatch': True,
> >u'slave_name': None, u'slave_gfid':
> >u'ece8da77-b5ea-45a7-9af7-7d4d8f55f74a', u'name_mismatch': False,
> >u'dst':
> >False})
> >[2020-05-29 21:57:30.629532] I [master(worker
> >/nodirectwritedata/gluster/gvol0):813:fix_possible_entry_failures]
> >_GMaster: Entry not present on master. Fixing gfid mismatch in slave.
> >Deleting the entry retry_count=1 entry=({u'uid': 108, u'gfid':
> >u'3c525ad8-aeb2-46b6-9c41-7fb4987916f8', u'gid': 117, u'mode': 33204,
> >u'entry':
> >u'.gfid/f857c42e-22f1-4ce4-8f2e-13bdadedde45/00a859f7xxxx-directory.xml',
> >u'op': u'CREATE'}, 17, {u'slave_isdir': False, u'gfid_mismatch': True,
> >u'slave_name': None, u'slave_gfid':
> >u'06717b5a-d842-495d-bd25-aab9cd454490', u'name_mismatch': False,
> >u'dst':
> >False})
> >[2020-05-29 21:57:30.659123] I [master(worker
> >/nodirectwritedata/gluster/gvol0):942:handle_entry_failures] _GMaster:
> >Sucessfully fixed entry ops with gfid mismatch retry_count=1
> >[2020-05-29 21:57:30.659343] I [master(worker
> >/nodirectwritedata/gluster/gvol0):1194:process_change] _GMaster: Retry
> >original entries. count = 1
> >[2020-05-29 21:57:30.725810] I [master(worker
> >/nodirectwritedata/gluster/gvol0):1197:process_change] _GMaster:
> >Sucessfully fixed all entry ops with gfid mismatch
> >[2020-05-29 21:57:31.747319] I [master(worker
> >/nodirectwritedata/gluster/gvol0):1954:syncjob] Syncer: Sync Time Taken
> >duration=0.7409 num_files=18 job=1 return_code=0
> >
> >We've verified that the files like polycom_00a859f7xxxx.cfg referred to
> >in
> >the error do exist on the master nodes and slave.
> >
> >We found this bug fix:
> >https://bugzilla.redhat.com/show_bug.cgi?id=1642865
> >
> >However that fix went in 5.1, and we're running 5.12 on the master
> >nodes
> >and slave. A couple of GlusterFS clients connected to the master nodes
> >are
> >running 5.13.
> >
> >Would anyone have any suggestions? Thank you in advance.
>
--
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20200602/8fb756a0/attachment.html>
More information about the Gluster-users
mailing list