Re: [Openstack] BUG: soft lockup messages

2015-01-04 Thread Matej Mailing
2015-01-03 17:56 GMT+01:00 John Griffith : > On Sat, Jan 3, 2015 at 5:05 AM, Matej Mailing wrote: >> Hi, >> >> we are experiencing randomly-timed soft lockup messages in different >> instances (running CentOS, Ubuntu, etc.) with different processes and >> on different compute nodes. I suspect that

Re: [Openstack] BUG: soft lockup messages

2015-01-04 Thread Erhan Ekici
Hi Matej, I am not sure but most of the soft lock-up messages generated due to I/O issues. From your log entries, I see mysqld issues as well as others: Jan 3 10:41:44 postar kernel: [303154.352793] NMI watchdog: BUG: soft lockup - CPU#3 stuck for 45s! [mysqld:4601] Jan 3 10:44:00 postar

Re: [Openstack] BUG: soft lockup messages

2015-01-04 Thread Matej Mailing
2015-01-04 17:10 GMT+01:00 Erhan Ekici : > Hi Matej, > > I am not sure but most of the soft lock-up messages generated due to I/O > issues. From your log entries, I see mysqld issues as well as others: > > Jan 3 10:41:44 postar kernel: [303154.352793] NMI watchdog: BUG: soft > lockup - CPU#3 stuc

Re: [Openstack] Guest agent and fsfreeze

2015-01-04 Thread Tim Bell
Thanks for the info. From what I understand, if we are running less than Juno, the hw guest agent feature/fsfreeze is not fully functional even with the appropriate flags on the image. I’ll keep an eye on the upcoming features before advertising this for the end users. Tim From: Yaguang Tang

Re: [Openstack] BUG: soft lockup messages

2015-01-04 Thread Erhan Ekici
Hi Matej, Can you change the values(both on compute and instance node) and see if soft lock-ups generated again? There are two approaches; one decreasing and the other increasing the cache. vm.dirty_background_ratio = 5 vm.dirty_ratio = 10 If I/O & Cache is not the source of the problem, we shou

Re: [Openstack] [juno][DVR]

2015-01-04 Thread Chinasubbareddy M
Thank you so much James, finally it got worked and I am able to create the router(DVR). From: James Denton [mailto:james.den...@rackspace.com] Sent: Friday, January 02, 2015 9:54 PM To: Chinasubbareddy M; openstack@lists.openstack.org Subject: RE: [Openstack] [juno][DVR] Hi Subbareddy, Can you