Hi all
After expanding our cluster we are facing failures while rebalancing. In my
opinion this doesn’t look good, so can anybody maybe explain how these failures
could arise, how you can fix them or what the consequences can be?
$gluster volume rebalance public status
Node Rebalanced-files size
scanned failures skipped status
run time in secs
--------- -----------
----------- ----------- ----------- -----------
------------ --------------
localhost 0
0Bytes 49496 23464 0 in progress
3821.00
gfs01b-dcg.intnet.be<http://gfs01b-dcg.intnet.be> 0
0Bytes 49496 0 0
in progress 3821.00
gfs02a-dcg.intnet.be<http://gfs02a-dcg.intnet.be> 0
0Bytes 49497 0 0
in progress 3821.00
gfs02b-dcg.intnet.be<http://gfs02b-dcg.intnet.be> 0
0Bytes 49495 0 0
in progress 3821.00
After looking in the public-rebalance.log this is one paragraph that shows up.
The whole log is filled up with these.
[2015-09-15 14:50:58.239554] I [dht-common.c:3309:dht_setxattr] 0-public-dht:
fixing the layout of /ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355
[2015-09-15 14:50:58.239730] I [dht-selfheal.c:960:dht_fix_layout_of_directory]
0-public-dht: subvolume 0 (public-replicate-0): 251980 chunks
[2015-09-15 14:50:58.239750] I [dht-selfheal.c:960:dht_fix_layout_of_directory]
0-public-dht: subvolume 1 (public-replicate-1): 251980 chunks
[2015-09-15 14:50:58.239759] I
[dht-selfheal.c:1065:dht_selfheal_layout_new_directory] 0-public-dht: chunk
size = 0xffffffff / 503960 = 0x214a
[2015-09-15 14:50:58.239784] I
[dht-selfheal.c:1103:dht_selfheal_layout_new_directory] 0-public-dht: assigning
range size 0x7ffe51f8 to public-replicate-0
[2015-09-15 14:50:58.239791] I
[dht-selfheal.c:1103:dht_selfheal_layout_new_directory] 0-public-dht: assigning
range size 0x7ffe51f8 to public-replicate-1
[2015-09-15 14:50:58.239816] I [MSGID: 109036]
[dht-common.c:6296:dht_log_new_layout_for_dir_selfheal] 0-public-dht: Setting
layout of /ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355 with
[Subvol_name: public-replicate-0, Err: -1 , Start: 0 , Stop: 2147373559 ],
[Subvol_name: public-replicate-1, Err: -1 , Start: 2147373560 , Stop:
4294967295 ],
[2015-09-15 14:50:58.306701] I [dht-rebalance.c:1405:gf_defrag_migrate_data]
0-public-dht: migrate data called on
/ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355
[2015-09-15 14:50:58.346531] W [client-rpc-fops.c:1090:client3_3_getxattr_cbk]
0-public-client-2: remote operation failed: Permission denied. Path:
/ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355/1.1 rationale getallen.pdf
(ba5220be-a462-4008-ac67-79abb16f4dd9). Key: trusted.glusterfs.pathinfo
[2015-09-15 14:50:58.354111] W [client-rpc-fops.c:1090:client3_3_getxattr_cbk]
0-public-client-3: remote operation failed: Permission denied. Path:
/ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355/1.1 rationale getallen.pdf
(ba5220be-a462-4008-ac67-79abb16f4dd9). Key: trusted.glusterfs.pathinfo
[2015-09-15 14:50:58.354166] E [dht-rebalance.c:1576:gf_defrag_migrate_data]
0-public-dht: /ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355/1.1 rationale
getallen.pdf: failed to get trusted.distribute.linkinfo key - Permission denied
[2015-09-15 14:50:58.356191] I [dht-rebalance.c:1649:gf_defrag_migrate_data]
0-public-dht: Migration operation on dir
/ka1hasselt/Lqw9pnXKV8ojBzzzsqHyChSU914422947204355 took 0.05 secs
Now the file which is referenced here, 1.1 rationale getallen.pdf, exists on
the hosts referenced by 0-public-client-0 and 0-public-client-1 and not on the
hosts referenced by 0-public-client-2 and 0-public-client-3. So another
question what is the system really trying to do here and is this normal?
I really hope somebody could give me a deeper understanding about what is going
on here.
Thanks in advance.
Kind regards
Davy
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