One node of our 4-node cluster rebooted last night: (11,1):o2hb_write_timeout:269 ERROR: Heartbeat write timeout to device dm-1 after 12000 milliseconds Heartbeat thread (11) printing last 24 blocking operations (cur = 22): Heartbeat thread stuck at waiting for write completion, stuffing current time in to that blocker (index 22) Index 23: took 0 ms to do checking slots Index 0: took 1 ms to do waiting for write completion Index 1: took 1997 ms to do msleep Index 2: took 0 ms to do allocating bios for read Index 3: took 0 ms to do bio alloc read Index 4: took 0 ms to do bio add page read Index 5: took 0 ms to do submit_bio for read Index 6: took 8 ms to do waiting for read completion Index 7: took 0 ms to do bio alloc write Index 8: took 0 ms to do bio add page write Index 9: took 0 ms to do submit_bio for write Index 10: took 0 ms to do checking slots Index 11: took 0 ms to do waiting for write completion Index 12: took 1992 ms to do msleep Index 13: took 0 ms to do allocating bios for read Index 14: took 0 ms to do bio alloc read Index 15: took 0 ms to do bio add page read Index 16: took 0 ms to do submit_bio for read Index 17: took 7 ms to do waiting for read completion Index 18: took 0 ms to do bio alloc write Index 19: took 0 ms to do bio add page write Index 20: took 0 ms to do submit_bio for write Index 21: took 0 ms to do checking slots Index 22: took 10003 ms to do waiting for write completion *** ocfs2 is very sorry to be fencing this system by restarting ***
There were no SCSI errors on the console or logs around the time of this reboot. > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:ocfs2-users- > [EMAIL PROTECTED] On Behalf Of Ulf Zimmermann > Sent: Monday, July 30, 2007 11:11 > To: Sunil Mushran > Cc: [email protected] > Subject: RE: [Ocfs2-users] 6 node cluster with unexplained reboots > > Too early to call. Management made the call "This hardware seems to have > been stable, lets use it". > > > -----Original Message----- > > From: Sunil Mushran [mailto:[EMAIL PROTECTED] > > Sent: Monday, July 30, 2007 11:07 > > To: Ulf Zimmermann > > Cc: [email protected] > > Subject: Re: [Ocfs2-users] 6 node cluster with unexplained reboots > > > > So are you suggesting the reason was bad hardware? > > Or, is it too early to call? > > > > Ulf Zimmermann wrote: > > > I have serial console setup with logging via conserver but so far no > > > further crash. We also swapped hardware a bit around (another 4 node > > > cluster with DL360g5 was working without crash for several weeks, we > > > swapped those 4 nodes in for the first 4 in the 6 node cluster). > > > > > > > > >> -----Original Message----- > > >> From: Sunil Mushran [mailto:[EMAIL PROTECTED] > > >> Sent: Monday, July 30, 2007 10:21 > > >> To: Ulf Zimmermann > > >> Cc: [email protected] > > >> Subject: Re: [Ocfs2-users] 6 node cluster with unexplained reboots > > >> > > >> Do you have a netconsole setup? If not, set it up. That will > capture > > >> > > > the > > > > > >> real reason for the reset. Well, it typically does. > > >> > > >> Ulf Zimmermann wrote: > > >> > > >>> We just installed a new cluster with 6 HP DL380g5, dual single > port > > >>> > > >> Qlogic 24xx HBAs connected via two HP 4/16 Storageworks switches to > a > > >> > > > 3Par > > > > > >> S400. We are using the 3Par recommended config for the Qlogic > driver > > >> > > > and > > > > > >> device-mapper-multipath giving us 4 paths to the SAN. We do see > some > > >> > > > SCSI > > > > > >> errors where DM-MP is failing a path after get a 0x2000 error from > the > > >> > > > SAN > > > > > >> controller, but the path gets puts back in service in less then 10 > > >> seconds. > > >> > > >>> This needs to be fixed but I don't think it is what is causing our > > >>> > > >> reboots. 2 of the nodes rebooted once while being idle (ocfs2 and > > >> clusterware were running, no db) and one node rebooted while idle > > >> > > > (another > > > > > >> node was copying using fscat our 9i db from ocfs1 to the ocfs2 data > > >> volume) and once while some load was put on it via the upgraded 10g > > >> database. In all cases it is as if someone a hardware reset button. > No > > >> kernel panic (at least not one leading to a stop with visable > > >> > > > message), we > > > > > >> can get a dirty write cache for the internal cciss controller. > > >> > > >>> The only messages we get on the nodes are when the crashed node is > > >>> > > >> already in reset and it missed its ocfs2 heartbeat (set to the > default > > >> > > > of > > > > > >> 7), followed later by crs moving the vip. > > >> > > >>> Any hints on trouble shooting this would be appreciated. > > >>> > > >>> Regards, Ulf. > > >>> > > >>> > > >>> -------------------------- > > >>> Sent from my BlackBerry Wireless Handheld > > >>> > > >>> > > >>> > > >>> > > > > ------------------------------------------------------------------------ > > > > > >>> _______________________________________________ > > >>> Ocfs2-users mailing list > > >>> [email protected] > > >>> http://oss.oracle.com/mailman/listinfo/ocfs2-users > > >>> > > _______________________________________________ > Ocfs2-users mailing list > [email protected] > http://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list [email protected] http://oss.oracle.com/mailman/listinfo/ocfs2-users
