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<div class=Section1><pre><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Hi all,<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>I keep getting node reboots across my cluster, it seems random in that the node being evicted changes<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>and in that it happens every now an then. I’m running RHEL 4 kernel 2.6.89.0.26.ELsmp, <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>and OCFS is OCFS2 1.2.9 Mon Jun 21 20:03:07 PDT 2010 (build 5e8325ec7f66b5189c65c7a8710fe8cb)<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>I am using OCFS2 as a general purpose filesystem (i.e not for <st1:PersonName
w:st="on">Oracle</st1:PersonName> datafiles or OCR etc),<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>with the following entries in /etc/fstab <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>/dev/emcpowera1 /u01/cfs ocfs2 _netdev 0 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>As a general purpose filesystem, should I be using the nointr mount option?<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>/etc/init.d/o2cb status<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Module "configfs": Loaded<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Filesystem "configfs": Mounted<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Module "ocfs2_nodemanager": Loaded<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Module "ocfs2_dlm": Loaded<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Module "ocfs2_dlmfs": Loaded<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Filesystem "ocfs2_dlmfs": Mounted<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Checking O2CB cluster UATocfs2: Online<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'> Heartbeat dead threshold: 61<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'> Network idle timeout: 60000<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'> Network keepalive delay: 2000<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'> Network reconnect delay: 2000<o:p></o:p></span></font></pre><pre
style='margin-left:36.0pt'><font size=2 face="Courier New"><span
style='font-size:10.0pt'>Checking O2CB heartbeat: Active<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>/var/log/messages from the node being rebooted doesn’t show anything, just the to reboot shows the following<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> Dec 8 00:59:02 dcapp01 syslogd 1.4.1: restart.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>On the other nodes, I see the following entries<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:56:01 dcapp02 kernel: o2net: connection to node dcapp01 (num 0) at 10.255.255.1:10007 has been idle for 60.0 seconds, shutting it down.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:56:01 dcapp02 kernel: (0,3):o2net_idle_timer:1426 here are some times that might help debug the situation: (tmr 1291733701.691575 now 1291733761.692608 dr 1291733701.690949 adv 1291733701.696965:1291733701.696967 func (d399da91:500) 1291733701.691576:1291733701.696950)<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:56:01 dcapp02 kernel: o2net: no longer connected to node dcapp01 (num 0) at 10.255.255.1:10007<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:01 dcapp02 kernel: (16082,3):o2net_connect_expired:1585 ERROR: no connection established with node 0 after 60.0 seconds, giving up and returning errors.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:01 dcapp02 kernel: (4215,2):dlm_send_remote_convert_request:398 ERROR: status = -107<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:01 dcapp02 kernel: (4215,2):dlm_wait_for_node_death:365 C5C06C9B675D41B99B60DE2EB28CE0F7: waiting 5000ms for notification of death of node 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:04 dcapp02 kernel: (16082,3):ocfs2_dlm_eviction_cb:119 device (120,1): dlm has evicted node 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:05 dcapp02 kernel: (4269,0):dlm_send_remote_convert_request:398 ERROR: status = -107<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:05 dcapp02 kernel: (4269,0):dlm_wait_for_node_death:365 D43AF814A25845F7B103EBBEA440BA18: waiting 5000ms for notification of death of node 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:05 dcapp02 kernel: (16082,3):ocfs2_dlm_eviction_cb:119 device (120,66): dlm has evicted node 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 01:57:06 dcapp02 kernel: (16082,3):ocfs2_dlm_eviction_cb:119 device (120,65): dlm has evicted node 0<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:15 dcapp02 kernel: o2net: connected to node dcapp01 (num 0) at 10.255.255.1:10007<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:29 dcapp02 kernel: ocfs2_dlm: Node 0 joins domain C5C06C9B675D41B99B60DE2EB28CE0F7<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:29 dcapp02 kernel: ocfs2_dlm: Nodes in domain ("C5C06C9B675D41B99B60DE2EB28CE0F7"): 0 1 2 3 6 7 8 9 10 11 14 15<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:35 dcapp02 kernel: ocfs2_dlm: Node 0 joins domain 97F22666B5A6494AAF38C53909275DB2<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:35 dcapp02 kernel: ocfs2_dlm: Nodes in domain ("97F22666B5A6494AAF38C53909275DB2"): 0 1 2 3<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:39 dcapp02 kernel: ocfs2_dlm: Node 0 joins domain D43AF814A25845F7B103EBBEA440BA18<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Dec 8 02:00:39 dcapp02 kernel: ocfs2_dlm: Nodes in domain ("D43AF814A25845F7B103EBBEA440BA18"): 0 1 2 3<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>I would really appreciate some help with this, as I’m not sure where to go from here.<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Thanks<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>Neil<o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre></div>
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