<!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;'><div>HI Joseph,<br></div><div><br></div><div> Our current setup is having below details and DLM is now allowed (DLM allow). Do you suggest any other option to get more logs.<br></div><div><br></div><div>debugfs.ocfs2 -l<br></div><div>DLM off ( DLM allow)<br></div><div>MSG off<br></div><div>TCP off<br></div><div>CONN off<br></div><div>VOTE off<br></div><div>DLM_DOMAIN off<br></div><div>HB_BIO off<br></div><div>BASTS off<br></div><div>DLMFS off<br></div><div>ERROR allow<br></div><div>DLM_MASTER off<br></div><div>KTHREAD off<br></div><div>NOTICE allow<br></div><div>QUORUM off<br></div><div>SOCKET off<br></div><div>DLM_GLUE off<br></div><div>DLM_THREAD off<br></div><div>DLM_RECOVERY off<br></div><div>HEARTBEAT off<br></div><div>CLUSTER off<br></div><div><br></div><div id=""><div><span style="color:rgb(0, 0, 0)" class="colour">Regards</span><br></div><div>Prabu<br></div><div style="color: rgb(255, 0, 0);"><b></b><br></div><div><span style="font-size:16px" class="size"><span style="color:rgb(192, 192, 192)" class="colour"><span style="font-family:arial,helvetica,sans-serif" class="font"><span style="font-family:"courier new",courier,monospace" class="font"><span style="font-size:24px" class="size"><span style="color:rgb(0, 0, 255)" class="colour"></span></span></span><span></span></span></span></span><br></div></div><div><br></div><div class="zmail_extra"><div id="1"><div><br></div><div>---- On Wed, 23 Dec 2015 07:30:54 +0530 <b>Joseph Qi <joseph.qi@huawei.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>So you mean the four nodes are manually rebooted? If so you must <br></div><div>analyze messages before you rebooted. <br></div><div>If there are not enough messages, you can switch on some messages. IMO, <br></div><div>mostly hang problems are caused by DLM bug, so I suggest switch on DLM <br></div><div>related log and reproduce. <br></div><div>You can use debugfs.ocfs2 -l to show all message switches and switch on <br></div><div>you want. For example, <br></div><div># debugfs.ocfs2 -l DLM allow <br></div><div> <br></div><div>Thanks， <br></div><div>Joseph <br></div><div> <br></div><div>On 2015/12/22 21:47, gjprabu wrote: <br></div><div>> Hi Joseph, <br></div><div>> <br></div><div>> We are facing ocfs2 server hang problem frequently and suddenly 4 nodes going to hang stat expect 1 node. After reboot everything is come to normal, this behavior happend many times. Do we have any debug and fix for this issue. <br></div><div>> <br></div><div>> Regards <br></div><div>> Prabu <br></div><div>> <br></div><div>> <br></div><div>> ---- On Tue, 22 Dec 2015 16:30:52 +0530 *Joseph Qi <<a href="mailto:joseph.qi@huawei.com" target="_blank">joseph.qi@huawei.com</a>>*wrote ---- <br></div><div>> <br></div><div>> Hi Prabu, <br></div><div>> From the log you provided, I can only see that node 5 disconnected with <br></div><div>> node 2, 3, 1 and 4. It seemed that something wrong happened on the four <br></div><div>> nodes, and node 5 did recovery for them. After that, the four nodes <br></div><div>> joined again. <br></div><div>> <br></div><div>> On 2015/12/22 16:23, gjprabu wrote: <br></div><div>> > Hi, <br></div><div>> > <br></div><div>> > Anybody please help me on this issue. <br></div><div>> > <br></div><div>> > Regards <br></div><div>> > Prabu <br></div><div>> > <br></div><div>> > ---- On Mon, 21 Dec 2015 15:16:49 +0530 *gjprabu <<a href="mailto:gjprabu@zohocorp.com" target="_blank">gjprabu@zohocorp.com</a> <mailto:<a href="mailto:gjprabu@zohocorp.com" target="_blank">gjprabu@zohocorp.com</a>>>*wrote ---- <br></div><div>> > <br></div><div>> > Dear Team, <br></div><div>> > <br></div><div>> > Ocfs2 clients are getting hang often and unusable. Please find the logs. Kindly provide the solution, it will be highly appreciated. <br></div><div>> > <br></div><div>> > <br></div><div>> > [3659684.042530] o2dlm: Node 4 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 3 4 5 ) 5 nodes <br></div><div>> > <br></div><div>> > [3992993.101490] (kworker/u192:1,63211,24):dlm_create_lock_handler:515 ERROR: dlm status = DLM_IVLOCKID <br></div><div>> > [3993002.193285] (kworker/u192:1,63211,24):dlm_deref_lockres_handler:2267 ERROR: A895BC216BE641A8A7E20AA89D57E051:M0000000000000062d2dcd000000000: bad lockres name <br></div><div>> > [3993032.457220] (kworker/u192:0,67418,11):dlm_do_assert_master:1680 ERROR: Error -112 when sending message 502 (key 0xc3460ae7) to node 2 <br></div><div>> > [3993062.547989] (kworker/u192:0,67418,11):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 2 <br></div><div>> > [3993064.860776] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 2 <br></div><div>> > [3993064.860804] o2cb: o2dlm has evicted node 2 from domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993073.280062] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 2 <br></div><div>> > [3993094.623695] (dlm_thread,46268,8):dlm_send_proxy_ast_msg:484 ERROR: A895BC216BE641A8A7E20AA89D57E051: res S000000000000000000000200000000, error -112 send AST to node 4 <br></div><div>> > [3993094.624281] (dlm_thread,46268,8):dlm_flush_asts:605 ERROR: status = -112 <br></div><div>> > [3993094.687668] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -112 when sending message 502 (key 0xc3460ae7) to node 3 <br></div><div>> > [3993094.815662] (dlm_reco_thread,46269,7):dlm_do_master_requery:1666 ERROR: Error -112 when sending message 514 (key 0xc3460ae7) to node 1 <br></div><div>> > [3993094.816118] (dlm_reco_thread,46269,7):dlm_pre_master_reco_lockres:2166 ERROR: status = -112 <br></div><div>> > [3993124.778525] (dlm_reco_thread,46269,7):dlm_do_master_requery:1666 ERROR: Error -107 when sending message 514 (key 0xc3460ae7) to node 3 <br></div><div>> > [3993124.779032] (dlm_reco_thread,46269,7):dlm_pre_master_reco_lockres:2166 ERROR: status = -107 <br></div><div>> > [3993133.332516] o2cb: o2dlm has evicted node 3 from domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993139.915122] o2cb: o2dlm has evicted node 1 from domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993147.071956] o2cb: o2dlm has evicted node 4 from domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993147.071968] (dlm_reco_thread,46269,7):dlm_do_master_requery:1666 ERROR: Error -107 when sending message 514 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.071975] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.071997] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.072001] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.072005] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.072009] (kworker/u192:0,67418,15):dlm_do_assert_master:1680 ERROR: Error -107 when sending message 502 (key 0xc3460ae7) to node 4 <br></div><div>> > [3993147.075019] (dlm_reco_thread,46269,7):dlm_pre_master_reco_lockres:2166 ERROR: status = -107 <br></div><div>> > [3993147.075353] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 1 went down! <br></div><div>> > [3993147.075701] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993147.076001] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 3 went down! <br></div><div>> > [3993147.076329] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993147.076634] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 4 went down! <br></div><div>> > [3993147.076968] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993147.077275] (dlm_reco_thread,46269,7):dlm_restart_lock_mastery:1236 ERROR: node down! 1 <br></div><div>> > [3993147.077591] (dlm_reco_thread,46269,7):dlm_restart_lock_mastery:1229 node 3 up while restarting <br></div><div>> > [3993147.077594] (dlm_reco_thread,46269,7):dlm_wait_for_lock_mastery:1053 ERROR: status = -11 <br></div><div>> > [3993155.171570] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 3 went down! <br></div><div>> > [3993155.171874] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993155.172150] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 4 went down! <br></div><div>> > [3993155.172446] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993155.172719] (dlm_reco_thread,46269,7):dlm_restart_lock_mastery:1236 ERROR: node down! 3 <br></div><div>> > [3993155.173001] (dlm_reco_thread,46269,7):dlm_restart_lock_mastery:1229 node 4 up while restarting <br></div><div>> > [3993155.173003] (dlm_reco_thread,46269,7):dlm_wait_for_lock_mastery:1053 ERROR: status = -11 <br></div><div>> > [3993155.173283] (dlm_reco_thread,46269,7):dlm_do_master_request:1347 ERROR: link to 4 went down! <br></div><div>> > [3993155.173581] (dlm_reco_thread,46269,7):dlm_get_lock_resource:932 ERROR: status = -107 <br></div><div>> > [3993155.173858] (dlm_reco_thread,46269,7):dlm_restart_lock_mastery:1236 ERROR: node down! 4 <br></div><div>> > [3993155.174135] (dlm_reco_thread,46269,7):dlm_wait_for_lock_mastery:1053 ERROR: status = -11 <br></div><div>> > [3993155.174458] o2dlm: Node 5 (me) is the Recovery Master for the dead node 2 in domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993158.361220] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993158.361228] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 1 <br></div><div>> > [3993158.361305] o2dlm: Node 5 (me) is the Recovery Master for the dead node 1 in domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993161.833543] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993161.833551] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 3 <br></div><div>> > [3993161.833620] o2dlm: Node 5 (me) is the Recovery Master for the dead node 3 in domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993165.188817] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993165.188826] o2dlm: Begin recovery on domain A895BC216BE641A8A7E20AA89D57E051 for node 4 <br></div><div>> > [3993165.188907] o2dlm: Node 5 (me) is the Recovery Master for the dead node 4 in domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > [3993168.551610] o2dlm: End recovery on domain A895BC216BE641A8A7E20AA89D57E051 <br></div><div>> > <br></div><div>> > [3996486.869628] o2dlm: Node 4 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 4 5 ) 2 nodes <br></div><div>> > [3996778.703664] o2dlm: Node 4 leaves domain A895BC216BE641A8A7E20AA89D57E051 ( 5 ) 1 nodes <br></div><div>> > [3997012.295536] o2dlm: Node 2 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 2 5 ) 2 nodes <br></div><div>> > [3997099.498157] o2dlm: Node 4 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 2 4 5 ) 3 nodes <br></div><div>> > [3997783.633140] o2dlm: Node 1 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 4 5 ) 4 nodes <br></div><div>> > [3997864.039868] o2dlm: Node 3 joins domain A895BC216BE641A8A7E20AA89D57E051 ( 1 2 3 4 5 ) 5 nodes <br></div><div>> > <br></div><div>> > Regards <br></div><div>> > Prabu <br></div><div>> > ** <br></div><div>> > <br></div><div>> > <br></div><div>> > <br></div><div>> > <br></div><div>> > <br></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> <mailto:<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>> > <br></div><div>> <br></div><div>> <br></div><div>> <br></div><div> <br></div><div> <br></div></div></blockquote></div><div><br></div></div></body></html>