We lost the attributes on all the bricks on servers glusterfs2 and glusterfs3 again.
[root@glusterfs2 Log_Files]# gluster volume info
Volume Name: StoragePool
Type: Distributed-Disperse
Volume ID: 149e976f-4e21-451c-bf0f-
f5691208531f Status: Started
Number of Bricks: 20 x (2 + 1) = 60
Transport-type: tcp
Bricks:
Brick1: glusterfs1sds:/ws/disk1/ws_
brick Brick2: glusterfs2sds:/ws/disk1/ws_
brick Brick3: glusterfs3sds:/ws/disk1/ws_
brick Brick4: glusterfs1sds:/ws/disk2/ws_
brick Brick5: glusterfs2sds:/ws/disk2/ws_
brick Brick6: glusterfs3sds:/ws/disk2/ws_
brick Brick7: glusterfs1sds:/ws/disk3/ws_
brick Brick8: glusterfs2sds:/ws/disk3/ws_
brick Brick9: glusterfs3sds:/ws/disk3/ws_
brick Brick10: glusterfs1sds:/ws/disk4/ws_
brick Brick11: glusterfs2sds:/ws/disk4/ws_
brick Brick12: glusterfs3sds:/ws/disk4/ws_
brick Brick13: glusterfs1sds:/ws/disk5/ws_
brick Brick14: glusterfs2sds:/ws/disk5/ws_
brick Brick15: glusterfs3sds:/ws/disk5/ws_
brick Brick16: glusterfs1sds:/ws/disk6/ws_
brick Brick17: glusterfs2sds:/ws/disk6/ws_
brick Brick18: glusterfs3sds:/ws/disk6/ws_
brick Brick19: glusterfs1sds:/ws/disk7/ws_
brick Brick20: glusterfs2sds:/ws/disk7/ws_
brick Brick21: glusterfs3sds:/ws/disk7/ws_
brick Brick22: glusterfs1sds:/ws/disk8/ws_
brick Brick23: glusterfs2sds:/ws/disk8/ws_
brick Brick24: glusterfs3sds:/ws/disk8/ws_
brick Brick25: glusterfs4sds.commvault.com:/
ws/disk1/ws_brick Brick26: glusterfs5sds.commvault.com:/
ws/disk1/ws_brick Brick27: glusterfs6sds.commvault.com:/
ws/disk1/ws_brick Brick28: glusterfs4sds.commvault.com:/
ws/disk10/ws_brick Brick29: glusterfs5sds.commvault.com:/
ws/disk10/ws_brick Brick30: glusterfs6sds.commvault.com:/
ws/disk10/ws_brick Brick31: glusterfs4sds.commvault.com:/
ws/disk11/ws_brick Brick32: glusterfs5sds.commvault.com:/
ws/disk11/ws_brick Brick33: glusterfs6sds.commvault.com:/
ws/disk11/ws_brick Brick34: glusterfs4sds.commvault.com:/
ws/disk12/ws_brick Brick35: glusterfs5sds.commvault.com:/
ws/disk12/ws_brick Brick36: glusterfs6sds.commvault.com:/
ws/disk12/ws_brick Brick37: glusterfs4sds.commvault.com:/
ws/disk2/ws_brick Brick38: glusterfs5sds.commvault.com:/
ws/disk2/ws_brick Brick39: glusterfs6sds.commvault.com:/
ws/disk2/ws_brick Brick40: glusterfs4sds.commvault.com:/
ws/disk3/ws_brick Brick41: glusterfs5sds.commvault.com:/
ws/disk3/ws_brick Brick42: glusterfs6sds.commvault.com:/
ws/disk3/ws_brick Brick43: glusterfs4sds.commvault.com:/
ws/disk4/ws_brick Brick44: glusterfs5sds.commvault.com:/
ws/disk4/ws_brick Brick45: glusterfs6sds.commvault.com:/
ws/disk4/ws_brick Brick46: glusterfs4sds.commvault.com:/
ws/disk5/ws_brick Brick47: glusterfs5sds.commvault.com:/
ws/disk5/ws_brick Brick48: glusterfs6sds.commvault.com:/
ws/disk5/ws_brick Brick49: glusterfs4sds.commvault.com:/
ws/disk6/ws_brick Brick50: glusterfs5sds.commvault.com:/
ws/disk6/ws_brick Brick51: glusterfs6sds.commvault.com:/
ws/disk6/ws_brick Brick52: glusterfs4sds.commvault.com:/
ws/disk7/ws_brick Brick53: glusterfs5sds.commvault.com:/
ws/disk7/ws_brick Brick54: glusterfs6sds.commvault.com:/
ws/disk7/ws_brick Brick55: glusterfs4sds.commvault.com:/
ws/disk8/ws_brick Brick56: glusterfs5sds.commvault.com:/
ws/disk8/ws_brick Brick57: glusterfs6sds.commvault.com:/
ws/disk8/ws_brick Brick58: glusterfs4sds.commvault.com:/
ws/disk9/ws_brick Brick59: glusterfs5sds.commvault.com:/
ws/disk9/ws_brick Brick60: glusterfs6sds.commvault.com:/
ws/disk9/ws_brick Options Reconfigured:
performance.readdir-ahead: on
diagnostics.client-log-level: INFO
auth.allow: glusterfs1sds,glusterfs2sds,
glusterfs3sds,glusterfs4sds. commvault.com ,glusterfs5sds.commvault.com ,glusterfs6sds.commvault.com
Thanks and Regards,
Ram
From: Pranith Kumar Karampuri [mailto:pkarampu@xxxxxxxxxx]
Sent: Friday, July 07, 2017 12:15 PM
To: Ankireddypalle Reddy
Cc: Gluster Devel (gluster-devel@xxxxxxxxxxx); gluster-users@xxxxxxxxxxx
Subject: Re: gfid and volume-id extended attributes lost
On Fri, Jul 7, 2017 at 9:25 PM, Ankireddypalle Reddy <areddy@xxxxxxxxxxxxx> wrote:
3.7.19
These are the only callers for removexattr and only _posix_remove_xattr has the potential to do removexattr as posix_removexattr already makes sure that it is not gfid/volume-id. And surprise surprise _posix_remove_xattr happens only from healing code of afr/ec. And this can only happen if the source brick doesn't have gfid, which doesn't seem to match with the situation you explained.
# line filename / context / line
1 1234 xlators/mgmt/glusterd/src/glusterd-quota.c <<glusterd_remove_quota_limit> >
ret = sys_lremovexattr (abspath, QUOTA_LIMIT_KEY);
2 1243 xlators/mgmt/glusterd/src/glusterd-quota.c <<glusterd_remove_quota_limit> >
ret = sys_lremovexattr (abspath, QUOTA_LIMIT_OBJECTS_KEY);
3 6102 xlators/mgmt/glusterd/src/glusterd-utils.c <<glusterd_check_and_set_ brick_xattr>>
sys_lremovexattr (path, "trusted.glusterfs.test");
4 80 xlators/storage/posix/src/posix-handle.h <<REMOVE_PGFID_XATTR>>
op_ret = sys_lremovexattr (path, key); \
5 5026 xlators/storage/posix/src/posix.c <<_posix_remove_xattr>>
op_ret = sys_lremovexattr (filler->real_path, key);
6 5101 xlators/storage/posix/src/posix.c <<posix_removexattr>>
op_ret = sys_lremovexattr (real_path, name);
7 6811 xlators/storage/posix/src/posix.c <<init>>
sys_lremovexattr (dir_data->data, "trusted.glusterfs.test");So there are only two possibilities:
1) Source directory in ec/afr doesn't have gfid
2) Something else removed these xattrs.
What is your volume info? May be that will give more clues.
PS: sys_fremovexattr is called only from posix_fremovexattr(), so that doesn't seem to be the culprit as it also have checks to guard against gfid/volume-id removal.
Thanks and Regards,
Ram
From: Pranith Kumar Karampuri [mailto:pkarampu@xxxxxxxxxx]
Sent: Friday, July 07, 2017 11:54 AM
To: Ankireddypalle Reddy
Cc: Gluster Devel (gluster-devel@xxxxxxxxxxx); gluster-users@xxxxxxxxxxx
Subject: Re: gfid and volume-id extended attributes lost
On Fri, Jul 7, 2017 at 9:20 PM, Ankireddypalle Reddy <areddy@xxxxxxxxxxxxx> wrote:
Pranith,
Thanks for looking in to the issue. The bricks were mounted after the reboot. One more thing that I noticed was when the attributes were manually set when glusterd was up then on starting the volume the attributes were again lost. Had to stop glusterd set attributes and then start glusterd. After that the volume start succeeded.
Which version is this?
Thanks and Regards,
Ram
From: Pranith Kumar Karampuri [mailto:pkarampu@xxxxxxxxxx]
Sent: Friday, July 07, 2017 11:46 AM
To: Ankireddypalle Reddy
Cc: Gluster Devel (gluster-devel@xxxxxxxxxxx); gluster-users@xxxxxxxxxxx
Subject: Re: gfid and volume-id extended attributes lost
Did anything special happen on these two bricks? It can't happen in the I/O path:
posix_removexattr() has:
0 if (!strcmp (GFID_XATTR_KEY, name)) {
1 gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_NOT_REMOVED,
2 "Remove xattr called on gfid for file %s", real_path);
3 op_ret = -1;
4 goto out;
5 }
6 if (!strcmp (GF_XATTR_VOL_ID_KEY, name)) {
7 gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_NOT_REMOVED,
8 "Remove xattr called on volume-id for file %s",
9 real_path);
10 op_ret = -1;
11 goto out;
12 }I just found that op_errno is not set correctly, but it can't happen in the I/O path, so self-heal/rebalance are off the hook.
I also grepped for any removexattr of trusted.gfid from glusterd and didn't find any.
So one thing that used to happen was that sometimes when machines reboot, the brick mounts wouldn't happen and this would lead to absence of both trusted.gfid and volume-id. So at the moment this is my wild guess.
On Fri, Jul 7, 2017 at 8:39 PM, Ankireddypalle Reddy <areddy@xxxxxxxxxxxxx> wrote:
Hi,
We faced an issue in the production today. We had to stop the volume and reboot all the servers in the cluster. Once the servers rebooted starting of the volume failed because the following extended attributes were not present on all the bricks on 2 servers.
1) trusted.gfid
2) trusted.glusterfs.volume-id
We had to manually set these extended attributes to start the volume. Are there any such known issues.
Thanks and Regards,
Ram
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please advise the sender by reply email and delete the message. Thank you."
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--Pranith
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