<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style='font-size:10pt;'><p>Hi Eric,</p><div>We identified the issue. When we do simultaneous access on the same directory its having i/o error. But normally cluster filesytem will handle this, in our cause its not working. ocfs2 version ocfs2-tools-1.8.0-16.<br></div><p><br></p><p>Exmaple<br></p><p>Node1 : cd /home/downloads/test<br></p><p>Node2 : mv /home/downloads/test <span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">/home/downloads/test1</span></span><br></p><p><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">Node1</span></span><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">ls -al <span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">/home/downloads/</span></span></span></span><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">d????????? ? ? ? ? ? test1</span></span><br></p><p><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">Node2</span></span><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px"><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">ls -al </span></span><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">/home/downloads/</span></span></span></span><br></p><p><span class="font" style="font-family:inherit"><span class="size" style="font-size:13.3333px">drwxr-xr-x 2 root root 3.9K Oct 26 12:06 test1</span></span><br></p><div><br></div><div><br></div><div id=""><div><span class="colour" style="color:rgb(0, 0, 0)">Regards</span><br></div><div>Prabu</div><div style="color: rgb(255, 0, 0);"><b></b><br></div><div><span class="size" style="font-size:16px"><span class="colour" style="color:rgb(192, 192, 192)"><span class="font" style="font-family:arial, helvetica, sans-serif"><span class="font" style="font-family:'courier new', courier, monospace"><span class="size" style="font-size:24px"><span class="colour" style="color:rgb(0, 0, 255)"></span></span></span><span></span></span></span></span><br></div></div><div class="zmail_extra"><div id="1"><div><br></div><div> ---- On Mon, 26 Oct 2015 08:10:06 +0530 <b>Eric Ren <zren@suse.com></b> wrote ----<br></div></div><div><br></div><blockquote style="border-left: 1px solid #cccccc; padding-left: 6px; margin:0 0 0 5px"><div><div>Hi,<br></div><div> <br></div><div>On 10/22/15 21:00, gjprabu wrote:<br></div><blockquote><div style="font-size: 10.0pt;"><div>Hi Eric,<br></div><div><br></div><div><span class="font" style="font-family:arial, helvetica, sans-serif, sans-serif">Thanks for your reply, Still we are facing same issue. we found this dmesg logs and this is known logs because our self made down node1 and made up this is showing in logs and other then we didn't found error message. </span><span class="highlight" style="background-color: rgb(255, 255, 255)"><span class="size" style="font-size:13.3333px"><span class="font" style="font-family:arial, helvetica, sans-serif, sans-serif">Even we do have problem while unmounting. umount process goes to "D" stat and </span></span></span><span class="font" style="font-family:arial, helvetica, sans-serif, sans-serif"> fsck through fsck.ocfs2: I/O error. If required to run any other command pls let me know. </span><br></div><div><br></div></div></blockquote><div>1. system log over boots<br></div><div> #journalctl --list-boots<br></div><div> If there is just one boot record, please " man journald.conf" to configure saving system logs over boots.<br></div><div> so, you can use "journalctl -b xxx" to see any specific boot system log.<br></div><div> <br></div><div> I can't see what steps exactly lead to that error message? Better to tidy up your problems from clean state.<br></div><div> <br></div><div> 2. umount issue may be caused by the bad condition cluster. Communication between nodes hung up.<br></div><div> <br></div><div> 3. please using device instead of mount point.<br></div><div> <br></div><div> 4. Did you build up CEPH RBD based on a good conditional ocfs2 cluster? It's better test more if cluster is<br></div><div> good before working on it.<br></div><div> <br></div><div> <br></div><div> Thanks,<br></div><div> Eric <br></div><div> <b></b><br></div><blockquote><div style="font-size: 10.0pt;"><div><b>ocfs2 version</b><br></div><div>debugfs.ocfs2 1.8.0<br></div><div><br></div><div><b># cat /etc/sysconfig/o2cb</b><br></div><div>#<br></div><div># This is a configuration file for automatic startup of the O2CB<br></div><div># driver. It is generated by running /etc/init.d/o2cb configure.<br></div><div># On Debian based systems the preferred method is running<br></div><div># 'dpkg-reconfigure ocfs2-tools'.<br></div><div>#<br></div><div><br></div><div># O2CB_STACK: The name of the cluster stack backing O2CB.<br></div><div>O2CB_STACK=o2cb<br></div><div><br></div><div># O2CB_BOOTCLUSTER: If not empty, the name of a cluster to start.<br></div><div>O2CB_BOOTCLUSTER=ocfs2<br></div><div><br></div><div># O2CB_HEARTBEAT_THRESHOLD: Iterations before a node is considered dead.<br></div><div>O2CB_HEARTBEAT_THRESHOLD=31<br></div><div><br></div><div># O2CB_IDLE_TIMEOUT_MS: Time in ms before a network connection is considered dead.<br></div><div>O2CB_IDLE_TIMEOUT_MS=30000<br></div><div><br></div><div># O2CB_KEEPALIVE_DELAY_MS: Max time in ms before a keepalive packet is sent<br></div><div>O2CB_KEEPALIVE_DELAY_MS=2000<br></div><div><br></div><div># O2CB_RECONNECT_DELAY_MS: Min time in ms between connection attempts<br></div><div>O2CB_RECONNECT_DELAY_MS=2000<br></div><div><br></div><div><b># fsck.ocfs2 -fy /home/build/downloads/</b><br></div><div>fsck.ocfs2 1.8.0<br></div><div>fsck.ocfs2: I/O error on channel while opening "/zoho/build/downloads/"<br></div><div><br></div><div><u><b>dmesg logs</b></u><br></div><div><br></div><div>[ 4229.886284] o2dlm: Joining domain A895BC216BE641A8A7E20AA89D57E051 ( 5 ) 1 nodes<br></div><div>[ 4251.437451] o2dlm: Node 3 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 3 5 ) 2 nodes<br></div><div>[ 4267.836392] o2dlm: Node 1 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 3 5 ) 3 nodes<br></div><div>[ 4292.755589] o2dlm: Node 2 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 3 5 ) 4 nodes<br></div><div>[ 4306.262165] o2dlm: Node 4 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 3 4 5 ) 5 nodes<br></div><div>[316476.505401] (kworker/u192:0,95923,0):dlm_do_assert_master:1717 ERROR: Error -112 when sending message 502 (key 0xc3460ae7) to node 1<br></div><div>[316476.505470] o2cb: o2dlm has evicted node 1 from domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316480.437231] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316480.442389] o2cb: o2dlm has evicted node 1 from domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316480.442412] (kworker/u192:0,95923,20):dlm_begin_reco_handler:2765 A895BC216BE641A8A7E20AA89D57E051: dead_node previously set to 1, node 3 changing it to 1<br></div><div>[316480.541237] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316480.541241] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316485.542733] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316485.542740] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316485.542742] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316490.544535] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316490.544538] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316490.544539] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316495.546356] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316495.546362] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316495.546364] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316500.548135] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316500.548139] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316500.548140] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316505.549947] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316505.549951] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316505.549952] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316510.551734] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316510.551739] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316510.551740] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316515.553543] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316515.553547] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316515.553548] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316520.555337] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316520.555341] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316520.555343] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316525.557131] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316525.557136] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316525.557153] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316530.558952] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316530.558955] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316530.558957] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316535.560781] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1<br></div><div>[316535.560789] o2dlm: Node 3 (he) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[316535.560792] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051<br></div><div>[319419.525609] o2dlm: Node 1 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 3 4 5 ) 5 nodes<br></div><div><br></div><div><br></div><div><br></div><div><b>ps -auxxxxx | grep umount</b><br></div><div>root 32083 21.8 0.0 125620 2828 pts/14 D+ 19:37 0:18 umount /home/build/repository<br></div><div>root 32196 0.0 0.0 112652 2264 pts/8 S+ 19:38 0:00 grep --color=auto umount<br></div><div><br></div><div><br></div><div><b>cat /proc/32083/stack</b> <br></div><div>[<ffffffff8132ad7d>] o2net_send_message_vec+0x71d/0xb00<br></div><div>[<ffffffff81352148>] dlm_send_remote_unlock_request.isra.2+0x128/0x410<br></div><div>[<ffffffff813527db>] dlmunlock_common+0x3ab/0x9e0<br></div><div>[<ffffffff81353088>] dlmunlock+0x278/0x800<br></div><div>[<ffffffff8131f765>] o2cb_dlm_unlock+0x35/0x50<br></div><div>[<ffffffff8131ecfe>] ocfs2_dlm_unlock+0x1e/0x30<br></div><div>[<ffffffff812a8776>] ocfs2_drop_lock.isra.29.part.30+0x1f6/0x700<br></div><div>[<ffffffff812ae40d>] ocfs2_simple_drop_lockres+0x2d/0x40<br></div><div>[<ffffffff8129b43c>] ocfs2_dentry_lock_put+0x5c/0x80<br></div><div>[<ffffffff8129b4a2>] ocfs2_dentry_iput+0x42/0x1d0<br></div><div>[<ffffffff81204dc2>] __dentry_kill+0x102/0x1f0<br></div><div>[<ffffffff81205294>] shrink_dentry_list+0xe4/0x2a0<br></div><div>[<ffffffff81205aa8>] shrink_dcache_parent+0x38/0x90<br></div><div>[<ffffffff81205b16>] do_one_tree+0x16/0x50<br></div><div>[<ffffffff81206e9f>] shrink_dcache_for_umount+0x2f/0x90<br></div><div>[<ffffffff811efb15>] generic_shutdown_super+0x25/0x100<br></div><div>[<ffffffff811eff57>] kill_block_super+0x27/0x70<br></div><div>[<ffffffff811f02a9>] deactivate_locked_super+0x49/0x60<br></div><div>[<ffffffff811f089e>] deactivate_super+0x4e/0x70<br></div><div>[<ffffffff8120da83>] cleanup_mnt+0x43/0x90<br></div><div>[<ffffffff8120db22>] __cleanup_mnt+0x12/0x20<br></div><div>[<ffffffff81093ba4>] task_work_run+0xc4/0xe0<br></div><div>[<ffffffff81013c67>] do_notify_resume+0x97/0xb0<br></div><div>[<ffffffff817d2ee7>] int_signal+0x12/0x17<br></div><div>[<ffffffffffffffff>] 0xffffffffffffffff<br></div><div><br></div><div><div><span class="colour" style="color:rgb(0, 0, 0)">Regards</span><br></div><div>Prabu<br></div><div style="color: rgb(255,0,0);"><br></div><div><span class="size" style="font-size:16px"><span class="colour" style="color:rgb(192, 192, 192)"><span class="font" style="font-family:arial, helvetica, sans-serif"><span class="font" style="font-family:'courier new', courier, monospace"><span class="size" style="font-size:24px"><span class="colour" style="color:rgb(0, 0, 255)"></span></span></span><span></span></span></span></span><br></div></div><div><br></div><div class="zmail_extra"><div><div><br></div><div>---- On Wed, 21 Oct 2015 08:32:15 +0530 <b>Eric Ren <a href="mailto:zren@suse.com" target="_blank"><zren@suse.com></a></b> wrote ----<br></div></div><div><br></div><blockquote style="border-left: 1.0px solid rgb(204,204,204);padding-left: 6.0px;margin: 0 0 0 5.0px;"><div><div>Hi Prabu,<br></div><div><br></div><div>I guess others like me are not familiar with this case that combine CEPH RBD and OCFS2.<br></div><div><br></div><div>We'd really like to help you. But I think ocfs2 developers cannot get any info about what happened<br></div><div>to ocfs2 from your descriptions. <br></div><div><br></div><div>So, I'm wondering if you can reproduce and tell us the steps. Once developers can reproduce it,<br></div><div>it's likely be resolved;-) BTW, any dmesg log about ocfs2 especially the initial error message and stack<br></div><div>back trace will be helpful!<br></div><div><br></div><div>Thanks,<br></div><div>Eric<br></div><div><br></div><div>On 10/20/15 17:29, gjprabu wrote:<br></div><div><br></div></div><blockquote><div style="font-size: 10.0pt;"><div><div style="color: rgb(255,0,0);"><span class="colour" style="color:rgb(0, 0, 0)">Hi </span><br></div><div style="color: rgb(255,0,0);"><br></div><div style="color: rgb(255,0,0);"><span class="colour" style="color:rgb(0, 0, 0)"> We are looking forward to your input on this.</span><br></div><div style="color: rgb(255,0,0);"><br></div><div style="color: rgb(255,0,0);"><span class="colour" style="color:rgb(0, 0, 0)">Regads</span><br></div><div style="color: rgb(255,0,0);"><span class="colour" style="color:rgb(0, 0, 0)">Prabu</span><br></div><div style="color: rgb(255,0,0);"><br></div></div><div class="zmail_extra"><div><div>--- On Fri, 09 Oct 2015 12:08:19 +0530 <b>gjprabu <a href="mailto:gjprabu@zohocorp.com" target="_blank"><gjprabu@zohocorp.com></a></b> wrote ----<br></div></div><div><br></div><blockquote style="border-left: 1.0px solid rgb(204,204,204);padding-left: 6.0px;margin: 0 0 0 5.0px;"><div><div style="font-size: 10.0pt;"><div class="zmail_extra"><div><div><br></div></div><div><br></div><div><br></div></div><div><br></div></div></div><blockquote style="border-left: 1.0px solid rgb(204,204,204);padding-left: 6.0px;margin: 0 0 0 5.0px;"><div><div style="font-size: 10.0pt;"><div>Hi All,<br></div><div><br></div><div> Anybody pls help me on this issue.<br></div><div><br></div><div><div><span class="colour" style="color:rgb(0, 0, 0)">Regards</span><br></div><div>Prabu<br></div><div style="color: rgb(255,0,0);"><br></div><div><span class="size" style="font-size:16px"><span class="colour" style="color:rgb(192, 192, 192)"><span class="font" style="font-family:arial, helvetica, sans-serif"><span class="size" style="font-size:24px"><span class="colour" style="color:rgb(0, 0, 255)"></span></span><span></span></span></span></span><br></div></div><div><br></div><div class="zmail_extra"><div><div><br></div><div>---- On Thu, 08 Oct 2015 12:33:57 +0530 <b>gjprabu <<a href="mailto:gjprabu@zohocorp.com" target="_blank"></a><a href="mailto:gjprabu@zohocorp.com" target="_blank">gjprabu@zohocorp.com</a>></b> wrote ----<br></div></div><div><br></div><div><br></div></div><div><br></div></div></div><blockquote style="border-left: 1.0px solid rgb(204,204,204);padding-left: 6.0px;margin: 0 0 0 5.0px;"><div><div style="font-size: 10.0pt;"><div>Hi All, <br></div><div><br></div><div> We have CEPH RBD with OCFS2 mounted servers. we are facing i/o errors simultaneously while move the data's in the same disk (Copying is not having any problem). Temporary we remount the partition and the issue get resolved but after sometime problem again reproduced. If anybody faced same issue. Please help us.<br></div><div><br></div><div>Note : We have total 5 Nodes, here two nodes working fine other nodes are showing like below input/output error.<br></div><div><br></div><div>ls -althr <br></div><div>ls: cannot access LITE_3_0_M4_1_TEST: Input/output error <br></div><div>ls: cannot access LITE_3_0_M4_1_OLD: Input/output error <br></div><div>total 0 <br></div><div>d????????? ? ? ? ? ? LITE_3_0_M4_1_TEST <br></div><div>d????????? ? ? ? ? ? LITE_3_0_M4_1_OLD <br></div><div><br></div><div>cluster:<br></div><div> node_count=5<br></div><div> heartbeat_mode = local<br></div><div> name=ocfs2<br></div><div><br></div><div>node:<br></div><div> ip_port = 7777<br></div><div> ip_address = 192.168.113.42<br></div><div> number = 1<br></div><div> name = integ-hm9<br></div><div> cluster = ocfs2<br></div><div><br></div><div>node:<br></div><div> ip_port = 7777<br></div><div> ip_address = 192.168.112.115<br></div><div> number = 2<br></div><div> name = integ-hm2<br></div><div> cluster = ocfs2<br></div><div><br></div><div>node:<br></div><div> ip_port = 7777<br></div><div> ip_address = 192.168.113.43<br></div><div> number = 3<br></div><div> name = integ-ci-1<br></div><div> cluster = ocfs2<br></div><div>node:<br></div><div> ip_port = 7777<br></div><div> ip_address = 192.168.112.217<br></div><div> number = 4<br></div><div> name = integ-hm8<br></div><div> cluster = ocfs2<br></div><div>node:<br></div><div> ip_port = 7777<br></div><div> ip_address = 192.168.112.192<br></div><div> number = 5<br></div><div> name = integ-hm5<br></div><div> cluster = ocfs2<br></div><div><br></div><div><br></div><div><div><span class="colour" style="color:rgb(0, 0, 0)">Regards</span><br></div><div>Prabu<br></div><div style="color: rgb(255,0,0);"><br></div><div><span class="size" style="font-size:16px"><span class="colour" style="color:rgb(192, 192, 192)"><span class="font" style="font-family:arial, helvetica, sans-serif"><span class="size" style="font-size:24px"><span class="colour" style="color:rgb(0, 0, 255)"></span></span><span></span></span></span></span><br></div></div><div><br></div></div><div>_______________________________________________ <br></div><div>Ocfs2-users mailing list <br></div><div><a href="mailto:Ocfs2-users@oss.oracle.com" target="_blank">Ocfs2-users@oss.oracle.com</a> <br></div><div><a href="https://oss.oracle.com/mailman/listinfo/ocfs2-users" target="_blank">https://oss.oracle.com/mailman/listinfo/ocfs2-users</a><br></div></div></blockquote></blockquote></blockquote></div><div><br></div></div><div><br></div><div><br></div><pre>_______________________________________________
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