Re: [Linux-cluster] recommended method for changing quorum device

2011-06-02 Thread bergman
In the message dated: Tue, 31 May 2011 22:22:44 +0200, The pithy ruminations from Mark Hlawatschek on were: => Mark, => => without guarantee ;-) I believe that the following method should work: Thanks for the suggestion. Here's what I did: => => 1. make sure that all 3 nodes are running and

Re: [Linux-cluster] Cluster environment issue

2011-06-02 Thread Srija
Thank you so much for your reply again. --- On Tue, 5/31/11, Kaloyan Kovachev wrote: Thanks for your reply again. > > If it is a switch restart you will have in your logs the > interface going > down/up, but more problematic is to find a short drop of > the multicast I checked all nodes did

Re: [Linux-cluster] Corosync goes cpu to 95-99%

2011-06-02 Thread Nicolas Ross
Oops .. Bad, bad, very bad news, almost for me. Nicolas, I have found the option to pass "-p" to corosync without modifying cman startup script. In /etc/sysconfig/cman config file, I have put a line with this: CMAN_JOIN_OPTS="-P" .. and works ok. [root@rhelnode01 sysconfig]# ps xa |grep corosy

Re: [Linux-cluster] defragmentation.....

2011-06-02 Thread Alan Brown
Alan Brown wrote: This is interesting too. note the variation in extents (the file is a piece of marketing fluff, name is unimportant) I'm getting the same thing in sarch01 and that's mounted read-only by the clients - there's zero write activity going on. -- Linux-cluster mailing list Lin

Re: [Linux-cluster] defragmentation.....

2011-06-02 Thread Steven Whitehouse
Hi, On Thu, 2011-06-02 at 11:47 +0100, Alan Brown wrote: > Steven Whitehouse wrote: > > > The thing to check is what size the extents are... > > filefrag doesn't show this. > Yes it does. You need the -v flag > > the on-disk layout is > > designed so that you should have a metadata block separ

Re: [Linux-cluster] defragmentation.....

2011-06-02 Thread Alan Brown
This is interesting too. note the variation in extents (the file is a piece of marketing fluff, name is unimportant) $ df -h . FilesystemSize Used Avail Use% Mounted on /dev/mapper/VolGroupBeast03-LogVolUser1 250G 113G 138G 45% /stage/user1 $ ls -l SUMO-SA

Re: [Linux-cluster] defragmentation.....

2011-06-02 Thread Alan Brown
Steven Whitehouse wrote: The thing to check is what size the extents are... filefrag doesn't show this. the on-disk layout is designed so that you should have a metadata block separating each data extent at exactly the place where we would need to read a new metadata block in order to contin

Re: [Linux-cluster] defragmentation.....

2011-06-02 Thread Steven Whitehouse
Hi, On Thu, 2011-06-02 at 10:34 +0100, Alan Brown wrote: > GFS2 seems horribly prone to fragmentation. > > I have a filesystem which has been written to once (data archive, > migrated from a GFS1 filesystem to a clean GFS2 fs) and a lot of the > files are composed of hundreds of extents - most

[Linux-cluster] defragmentation.....

2011-06-02 Thread Alan Brown
GFS2 seems horribly prone to fragmentation. I have a filesystem which has been written to once (data archive, migrated from a GFS1 filesystem to a clean GFS2 fs) and a lot of the files are composed of hundreds of extents - most of these are only 1-2Mb so this is a bit over the top and it badl

Re: [Linux-cluster] Corosync goes cpu to 95-99%

2011-06-02 Thread carlopmart
On 06/02/2011 01:27 AM, Nicolas Ross wrote: cman_tool join is called in /etc/rc.d/init.d/cman I believe. Add a -P option to it. Regards -steve Where is "-P" option under cman_tool manpage?? I didn't see it. Appears "-S", "-X", "-A", "-D" ... but not -P ... Is it correct to put this option