[Gluster-users] Conv distr-repl 2 to repl 3 arb 1 now 2 of 6 arb bricks won't get healed

Mon May 31 09:11:57 UTC 2021

For the arb_0 I seeonly 8 clients , while there should be 12 clients:
Brick : 192.168.0.40:/var/bricks/0/brickClients connected : 12
Brick : 192.168.0.41:/var/bricks/0/brickClients connected : 12
Brick : 192.168.0.80:/var/bricks/arb_0/brickClients connected : 8
Can you try to reconnect them. The most simple way is to kill the arbiter process and 'gluster volume start force' , but always verify that you have both data bricks up and running.

Yet, this doesn't explain why the heal daemon is not able to replicate properly.

Best Regards,Strahil Nikolov

    Meanwhile I tried reset-brick on one of the failing arbiters on node2, but with same results. The behaviour is reproducible, arbiter stays empty.

node0: 192.168.0.40

node1: 192.168.0.41

node3: 192.168.0.80

volume info:

Volume Name: gv0
Type: Distributed-Replicate
Volume ID: 9bafc4d2-d9b6-4b6d-a631-1cf42d1d2559
Status: Started
Snapshot Count: 0
Number of Bricks: 6 x (2 + 1) = 18
Transport-type: tcp
Bricks:
Brick1: 192.168.0.40:/var/bricks/0/brick
Brick2: 192.168.0.41:/var/bricks/0/brick
Brick3: 192.168.0.80:/var/bricks/arb_0/brick (arbiter)
Brick4: 192.168.0.40:/var/bricks/2/brick
Brick5: 192.168.0.80:/var/bricks/2/brick
Brick6: 192.168.0.41:/var/bricks/arb_1/brick (arbiter)
Brick7: 192.168.0.40:/var/bricks/1/brick
Brick8: 192.168.0.41:/var/bricks/1/brick
Brick9: 192.168.0.80:/var/bricks/arb_1/brick (arbiter)
Brick10: 192.168.0.40:/var/bricks/3/brick
Brick11: 192.168.0.80:/var/bricks/3/brick
Brick12: 192.168.0.41:/var/bricks/arb_0/brick (arbiter)
Brick13: 192.168.0.41:/var/bricks/3/brick
Brick14: 192.168.0.80:/var/bricks/4/brick
Brick15: 192.168.0.40:/var/bricks/arb_0/brick (arbiter)
Brick16: 192.168.0.41:/var/bricks/2/brick
Brick17: 192.168.0.80:/var/bricks/5/brick
Brick18: 192.168.0.40:/var/bricks/arb_1/brick (arbiter)
Options Reconfigured:
cluster.min-free-inodes: 6%
cluster.min-free-disk: 2%
performance.md-cache-timeout: 600
cluster.rebal-throttle: lazy
features.scrub-freq: monthly
features.scrub-throttle: lazy
features.scrub: Inactive
features.bitrot: off
cluster.server-quorum-type: none
performance.cache-refresh-timeout: 10
performance.cache-max-file-size: 64MB
performance.cache-size: 781901824
auth.allow: /(192.168.0.*),/usr/andreas(192.168.0.120),/usr/otis(192.168.0.168),/usr/otis(192.168.0.111),/usr/otis(192.168.0.249),/media(192.168.0.*),/virt(192.168.0.*),/cloud(192.168.0.247),/zm(192.168.0.136)
performance.cache-invalidation: on
performance.stat-prefetch: on
features.cache-invalidation-timeout: 600
cluster.quorum-type: auto
features.cache-invalidation: on
nfs.disable: on
transport.address-family: inet
cluster.self-heal-daemon: on
cluster.server-quorum-ratio: 51%

volume status:

Status of volume: gv0
Gluster process TCP Port RDMA Port Online Pid
------------------------------------------------------------------------------
Brick 192.168.0.40:/var/bricks/0/brick 49155 0 Y 713066
Brick 192.168.0.41:/var/bricks/0/brick 49152 0 Y 2082
Brick 192.168.0.80:/var/bricks/arb_0/brick 49152 0 Y 26186
Brick 192.168.0.40:/var/bricks/2/brick 49156 0 Y 713075
Brick 192.168.0.80:/var/bricks/2/brick 49154 0 Y 325
Brick 192.168.0.41:/var/bricks/arb_1/brick 49157 0 Y 1746903
Brick 192.168.0.40:/var/bricks/1/brick 49157 0 Y 713084
Brick 192.168.0.41:/var/bricks/1/brick 49153 0 Y 14104
Brick 192.168.0.80:/var/bricks/arb_1/brick 49159 0 Y 2314
Brick 192.168.0.40:/var/bricks/3/brick 49153 0 Y 2978692
Brick 192.168.0.80:/var/bricks/3/brick 49155 0 Y 23269
Brick 192.168.0.41:/var/bricks/arb_0/brick 49158 0 Y 1746942
Brick 192.168.0.41:/var/bricks/3/brick 49155 0 Y 897058
Brick 192.168.0.80:/var/bricks/4/brick 49156 0 Y 27433
Brick 192.168.0.40:/var/bricks/arb_0/brick 49152 0 Y 3561115
Brick 192.168.0.41:/var/bricks/2/brick 49156 0 Y 902602
Brick 192.168.0.80:/var/bricks/5/brick 49157 0 Y 29522
Brick 192.168.0.40:/var/bricks/arb_1/brick 49154 0 Y 3561159
Self-heal Daemon on localhost N/A N/A Y 26199
Self-heal Daemon on 192.168.0.41 N/A N/A Y 2240635
Self-heal Daemon on 192.168.0.40 N/A N/A Y 3912810

Task Status of Volume gv0
------------------------------------------------------------------------------
There are no active volume tasks

volume heal info summary:

Brick 192.168.0.40:/var/bricks/0/brick <--- contains 100177 files in 25015 dirs
Status: Connected
Total Number of entries: 1006
Number of entries in heal pending: 1006
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/0/brick
Status: Connected
Total Number of entries: 1006
Number of entries in heal pending: 1006
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/arb_0/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.40:/var/bricks/2/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/2/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/arb_1/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.40:/var/bricks/1/brick
Status: Connected
Total Number of entries: 1006
Number of entries in heal pending: 1006
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/1/brick
Status: Connected
Total Number of entries: 1006
Number of entries in heal pending: 1006
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/arb_1/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.40:/var/bricks/3/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/3/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/arb_0/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/3/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/4/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.40:/var/bricks/arb_0/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.41:/var/bricks/2/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.80:/var/bricks/5/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

Brick 192.168.0.40:/var/bricks/arb_1/brick
Status: Connected
Total Number of entries: 0
Number of entries in heal pending: 0
Number of entries in split-brain: 0
Number of entries possibly healing: 0

client-list:

Client connections for volume gv0
Name count
----- ------
fuse 5
gfapi.ganesha.nfsd 3
glustershd 3

total clients for volume gv0 : 11
-----------------------------------------------------------------

all clients: https://pro.hostit.de/nextcloud/index.php/s/tWdHox3aqb3qqbG

failing mnt.log https://pro.hostit.de/nextcloud/index.php/s/2E2NLnXNsTy7EQe

Thank you.

A.

"Strahil Nikolov" hunter86_bg at yahoo.com – 31. Mai 2021 05:23
> Can you provide gluster volume info , gluster volume status and gluster volume heal info summary and most probably gluster volume status all clients/client-list
>
>
> Best Regards,
> Strahil Nikolov
>
> > On Sun, May 30, 2021 at 15:17, a.schwibbe at gmx.net
> > wrote:
> >
> > I am seeking help here after looking for solutions on the web for my distributed-replicated volume.
> >
> > My volume is operated since v3.10 and I upgraded through to 7.9, replaced nodes, replaced bricks without a problem. I love it.
> >
> > Finally I wanted to extend my 6x2 distributed replicated volume with arbiters for better split-brain protection.
> >
> >
> > So I add-brick with replication 3 arbiter 1 (as I had a 6x2 I obviously added 6 arb bricks) and it successfully converted to 6 x (2 +1) and self-heal immideately started. Looking good.
> >
> >
> >
> > Version: 7.9
> >
> >
> > Number of Bricks: 6 x (2 + 1) = 18
> >
> >
> > cluster.max-op-version: 70200
> >
> >
> > Peers: 3 (node[0..2])
> >
> >
> > Layout
> >
> >
> > |node0 |node1 |node2
> >
> > |brick0 |brick0 |arbit0
> >
> >
> > |arbit1 |brick1 |brick1
> >
> >
> > ....
> >
> >
> >
> > I then recognized that arbiter volumes on node0 & node1 have been healed successfully.
> >
> > Unfortunately all arbiter volumes on node2 have not been healed!
> >
> > I realized that the main dir on my arb mount point has been added (mount point /var/brick/arb_0 now contains dir "brick") however this dir on _all_ other bricks has numeric ID 33, but on this on it has 0). The brick dir on the faulty arb-volumes does contain ".glusterfs", however it has only very few entries. Other than that "brick" is empty.
> >
> > At that point I changed brick dir owner with chown to 33:33 and hoped for self-heal to work. It did not.
> >
> > I hoped a rebalance fix-layout would fix things. It did not.
> >
> > I hoped for a glusterd restart on node2 (as this is happening to both arb volumes on this node exclusively) would help. It did not.
> >
> >
> > Active mount points via nfs-ganesha or fuse continue to work.
> >
> > Existing clients cause errors in the arb-brick logs on node2 for missing files or dirs, but clients seem not affected. r/w operations work.
> >
> >
> > New clients are not able to fuse mount the volume for "authentication error".
> >
> > heal statistics heal-count show several hundred files need healing, this count is rising. Watching df on the arb-brick mount point on node2 shows every now and then a few bytes written, but then removed immideately after that.
> >
> >
> > Any help/recommendation for you highly appreciated.
> >
> > Thank you!
> >
> >
> > A.
> >
> > ________
> >
> >
> >
> >
> >
> > Community Meeting Calendar:
> >
> >
> > Schedule -
> >
> > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC
> >
> > Bridge: https://meet.google.com/cpu-eiue-hvk
> >
> > Gluster-users mailing list
> >
> > Gluster-users at gluster.org
> >
> > https://lists.gluster.org/mailman/listinfo/gluster-users
> >
> >

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