I have created three instances using ubuntu's official image on my OpenStack controller node.
Two of them have run for more than three weeks. The third have run for two weeks. In the past weeks I used were normal. Suddenly, all of them can't be accessed by ssh with key. And when I ping them, reply "Request time out". On the dashboard, the status is active, and the power state is running. The instance console log is: cloudinit startlocal running: Fri, 27 Sep 2013 05:30:33 +0000. up 5.54 seconds no instance data found in startlocal ciinfo: lo : 1 127.0.0.1 255.0.0.0 . ciinfo: eth0 : 1 10.167.35.142 255.255.255.0 fa:16:3e:31:83:9c ciinfo: route0: 0.0.0.0 10.167.35.1 0.0.0.0 eth0 UG ciinfo: route1: 10.167.35.0 0.0.0.0 255.255.255.0 eth0 U ciinfo: route2: 169.254.169.254 10.167.35.141 255.255.255.255 eth0 UGH cloudinit start running: Fri, 27 Sep 2013 05:30:34 +0000. up 6.09 seconds found data source: DataSourceEc2 20130927 05:30:47,626 __init__.py[WARNING]: Unhandled nonmultipart userdata '' Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd * Starting AppArmor profiles [80G [74G[ OK ] landscapeclient is not configured, please run landscapeconfig. * Stopping System V initialisation compatibility[74G[ OK ] * Starting System V runlevel compatibility[74G[ OK ] * Starting save kernel messages[74G[ OK ] acpid: starting up with proc fs * Starting ACPI daemon[74G[ OK ] * Starting automatic crash report generation[74G[ OK ] * Starting regular background program processing daemon[74G[ OK ] * Starting deferred execution scheduler[74G[ OK ] * Stopping save kernel messages[74G[ OK ] * Starting CPU interrupts balancing daemon[74G[ OK ] acpid: 1 rule loaded acpid: waiting for events: event logging is off * Starting MySQL Server[74G[[31mfail[39;49m] * Starting crash report submission daemon[74G[ OK ] * Starting system logging daemon[74G[ OK ] * Starting Handle applying cloudconfig[74G[ OK ] * Stopping Handle applying cloudconfig[74G[ OK ] apache2: apr_sockaddr_info_get() failed for webserver apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName * Starting web server apache2 [80G [74G[ OK ] * Stopping System V runlevel compatibility[74G[ OK ] * Starting execute cloud user/final scripts[74G[ OK ] cloudinit boot finished at Fri, 27 Sep 2013 05:30:50 +0000. Up 22.48 seconds [ 3601.676137] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 3602.155585] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3722.759789] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 3722.760682] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3842.760065] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 3842.760815] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3962.760093] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 3962.760839] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4082.760060] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 4082.760932] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4202.760097] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 4202.760985] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4322.760058] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 4322.760936] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4442.760085] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 4442.761002] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4682.760064] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 4682.761029] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 5762.760082] INFO: task jbd2/vdc18:1980 blocked for more than 120 seconds. [ 5762.761044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Thanks. malei
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