[Gluster-users] Client and server file "view", different results?! Client can't see the right file.

[Pranith Kumar. Karampuri]

Martin,
     The output suggests that there are 2 replicas per 1 volume. So it should be present on only 2 bricks. Why is the file present in 4 bricks?. It should either be present on pserver12&13 or pserver3 & 5. I am not sure why you are expecting it to be there on 4 bricks.
Am I missing any info here?.

Pranith

----- Original Message -----
From: "Martin Schenker" <martin.schenker at profitbricks.com>
To: gluster-users at gluster.org
Sent: Wednesday, May 18, 2011 2:23:09 PM
Subject: Re: [Gluster-users] Client and server file "view",	different results?! Client can't see the right file.

Here is another occurrence:

The file 20819 is shown twice, different timestamps and attributes. 0
filesize on pserver3, outdated on pserver5, just 12&13 seems to be in sync.
So what's going on? 


0 root at de-dc1-c1-pserver13:~ # ls -al
/opt/profitbricks/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/h
dd-images/2081*
-rwxrwx--- 1 libvirt-qemu kvm 53687091200 May 18 08:44
/opt/profitbricks/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/h
dd-images/20819
-rwxrwx--- 1 libvirt-qemu kvm 53687091200 May 18 08:44
/opt/profitbricks/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/h
dd-images/20819

0 root at de-dc1-c1-pserver3:~ # find /mnt/gluster/brick?/ -name 20819 | xargs
-i ls -al {}
-rwxrwx--- 1 libvirt-qemu vcb 0 May 14 17:00
/mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
0 root at de-dc1-c1-pserver3:~ # getfattr -dm -
/mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
getfattr: Removing leading '/' from absolute path names
# file:
mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/
hdd-images/20819
trusted.gfid=0sa5/rvjUUQ3ibSf32O3izOw==

0 root at pserver5:~ # find /mnt/gluster/brick?/ -name 20819 | xargs -i ls -al
{}
-rwxrwx--- 1 libvirt-qemu vcb 53687091200 May 14 17:00
/mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
0 root at pserver5:~ # getfattr -dm -
/mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
getfattr: Removing leading '/' from absolute path names
# file:
mnt/gluster/brick0/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/
hdd-images/20819
trusted.afr.storage0-client-0=0sAAAAAgAAAAIAAAAA
trusted.afr.storage0-client-1=0sAAAAAAAAAAAAAAAA
trusted.gfid=0sa5/rvjUUQ3ibSf32O3izOw==

0 root at pserver12:~ # find /mnt/gluster/brick?/ -name 20819 | xargs -i ls -al
{}
-rwxrwx--- 1 libvirt-qemu kvm 53687091200 May 18 08:41
/mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
0 root at pserver12:~ # getfattr -dm -
/mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
getfattr: Removing leading '/' from absolute path names
# file:
mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/
hdd-images/20819
trusted.afr.storage0-client-6=0sAAAAAAAAAAAAAAAA
trusted.afr.storage0-client-7=0sAAAAAAAAAAAAAAAA
trusted.gfid=0sa5/rvjUUQ3ibSf32O3izOw==
trusted.glusterfs.dht.linkto="storage0-replicate-0

0 root at de-dc1-c1-pserver13:~ # find /mnt/gluster/brick?/ -name 20819 | xargs
-i ls -al {}
-rwxrwx--- 1 libvirt-qemu kvm 53687091200 May 18 08:39
/mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
0 root at de-dc1-c1-pserver13:~ # getfattr -dm -
/mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef
/hdd-images/20819
getfattr: Removing leading '/' from absolute path names
# file:
mnt/gluster/brick1/storage/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/
hdd-images/20819
trusted.afr.storage0-client-6=0sAAAAAAAAAAAAAAAA
trusted.afr.storage0-client-7=0sAAAAAAAAAAAAAAAA
trusted.gfid=0sa5/rvjUUQ3ibSf32O3izOw==
trusted.glusterfs.dht.linkto="storage0-replicate-0

Only entrance in log file on pserver5, no references in the other three
logs/servers:

0 root at pserver5:~ # grep 20819
/var/log/glusterfs/opt-profitbricks-storage.log
[2011-05-17 20:37:30.52535] I [client-handshake.c:407:client3_1_reopen_cbk]
0-storage0-client-7: reopen on
/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/hdd-images/20819 succeeded
(remote-fd = 6)
[2011-05-17 20:37:34.824934] I [afr-open.c:435:afr_openfd_sh]
0-storage0-replicate-3:  data self-heal triggered. path:
/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/hdd-images/20819, reason:
Replicate up down flush, data lock is held
[2011-05-17 20:37:34.825557] E
[afr-self-heal-common.c:1214:sh_missing_entries_create]
0-storage0-replicate-3: no missing files -
/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/hdd-images/20819.
proceeding to metadata check
[2011-05-17 21:08:59.241203] I
[afr-self-heal-algorithm.c:526:sh_diff_loop_driver_done]
0-storage0-replicate-3: diff self-heal on
/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/hdd-images/20819: 6 blocks
of 409600 were different (0.00%)
[2011-05-17 21:08:59.275873] I
[afr-self-heal-common.c:1527:afr_self_heal_completion_cbk]
0-storage0-replicate-3: background  data self-heal completed on
/images/2078/ebb83b05-3a83-9d18-ad8f-8542864da6ef/hdd-images/20819


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