Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, I'll give a bit of background info first, so please forgive my ramblings. I am testing a DRBD/MySQL database setup on a pair of dell PowerEdge 2850's. A few weeks ago I set them up with Ubuntu 7.10 server (32bit) MySQL, DRBD, and Hearbeat. However, I had a "OOM Killer" problem which I cannot identify so I stripped the machines down and have reinstalled both with Ubuntu 7.10 (64bit), MySQL and DRBD(8.2.4) (No heartbeat yet - just adding one thing at a time). This afternoon I noticed my mysqld_safe process was hogging the CPU so I killed it off and restarted it, but while I was digging around in the logs I found that DRBD has disconnected itself twice today! The Primary just logs the disconnection, but on the Secondary the disconnection seems to start with these to entries:- --- [435735.425149] drbd0: Digest integrity check FAILED. Broken NICs? [435735.425190] drbd0: error receiving Data, l: 4140! --- The servers are connected with a Gigabit cable directly between the two nics (not cross-over, I understand the gigabit spec includes auto crossover "magic"!). The cable seems in good physical health. I have attached some files:- The /var/log/messages and syslog from both Primary and Secondary; my drbd.conf; and a few repetitions of /proc/drbd after I manually disconnected, generated a 1GB file on Primary and then reconnected, to test the sync speed. I work it out to be 88MB second, which I think is quite good??? and suggests the network is otherwise working OK. It seems to take less than a second for the whole error/disconnect/reconnect/resync, none the less - this still seems like a bug to me. Can anyone help me in tracking down the problem? Thanks Paul -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: drbd.conf URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: primary_drbd_messages.txt URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment-0001.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: primary_drbd_syslog.txt URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment-0002.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: secondary_drbd_messages.txt URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment-0003.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: secondary_drbd_syslog.txt URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment-0004.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: secondary_proc_drbd_during_resync.txt URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080122/aaf7005e/attachment-0005.txt>