Sridhar Avantsa savan...@gmail.com On Aug 7, 2013 3:02 PM, <ocfs2-users-requ...@oss.oracle.com> wrote:
> Send Ocfs2-users mailing list submissions to > ocfs2-users@oss.oracle.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://oss.oracle.com/mailman/listinfo/ocfs2-users > or, via email, send a message with subject or body 'help' to > ocfs2-users-requ...@oss.oracle.com > > You can reach the person managing the list at > ocfs2-users-ow...@oss.oracle.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Ocfs2-users digest..." > > > Today's Topics: > > 1. Re: OCFS2 tuning, fragmentation and localalloc option. > Cluster hanging during mix read+write workloads (Goldwyn Rodrigues) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 06 Aug 2013 20:21:19 -0500 > From: Goldwyn Rodrigues <rgold...@suse.de> > Subject: Re: [Ocfs2-users] OCFS2 tuning, fragmentation and localalloc > option. Cluster hanging during mix read+write workloads > To: Gavin Jones <gjo...@where2getit.com> > Cc: ocfs2-users@oss.oracle.com > Message-ID: <5201a10f.3050...@suse.de> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Gavin, > > On 08/06/2013 04:51 PM, Gavin Jones wrote: > > Hello Goldwyn, > > > > Thanks for taking a look at this. So, then, it does seem to be DLM > > related. We were running fine for a few weeks and then it came up > > again this morning and has been going on throughout the day. > > > > Regarding the DLM debugging, I allowed debugging for DLM_GLUE, > > DLM_THREAD, DLM_MASTER and DLM_RECOVERY. However, I don't see any DLM > > logging output in dmesg or syslog --is there perhaps another way to > > get at the actual DLM log? I've searched around a bit but didn't find > > anything that made it clear. > > Unfortunately CONFIG_OCFS2_DEBUG_MASKLOG is not enabled for opensuse > kernels but for SLES kernels only. Sorry about that :( > > However, you can recompile the kernel with this enabled in the config file. > > > > > As for OCFS2 and iSCSI communications, they use the same physical > > network interface but different VLANs on that interface. The > > "connectionX:0" errors, then, seem to indicate an issue with the ISCSI > > connection. The system logs and monitoring software don't show any > > warnings or errors about the interface going down, so the only thing I > > can think of is the connection load balancing on the SAN, though > > that's merely a hunch. Maybe I should mail the list and see if anyone > > has a similar setup. > > You will not have anything in the logs if the network issues are > intermittent. Perhaps a simple ping when the issue is occurring is the > best tool. > > My doubts on network issues keep getting stronger by the information you > have given me so far. Also, as Sunil mentioned, you have a problem if > the storage does not respond anyways. > > > > > If you could please point me in the right direction to make use of the > > DLM debugging via debugs.ocfs2, I would appreciate it. > > > > <snipped> > > -- > Goldwyn > > > > ------------------------------ > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > https://oss.oracle.com/mailman/listinfo/ocfs2-users > > End of Ocfs2-users Digest, Vol 116, Issue 4 > ******************************************* >
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