[DRBD-user] (no subject)

Knight, Doug dknight at wsi.com
Mon Aug 11 18:01:58 CEST 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


This morning I found the following error in /var/log/messages. I use
heartbeat to manage drbd. I am running drbd 8.2.5. I was running a
moderate level of load testing on my server, though the stats I see from
the crash indicate the system was lightly loaded. This error caused
heartbeat to think drbd had failed, and it restarted everything that
depended upon drbd (including postgres). Everything came back up fine
with the heartbeat restart of drbd. My questions are:


1)       What does exit code 20 from drbdsetup mean?

2)       The driver was definitely loaded, so what could cause the "no
response from driver" message? Can a heavy system load cause some kind
of timeout?


Excerpt from messages:

Aug 11 07:13:12 arc-stgsky-agg1 lrmd: [5233]: info: RA output:
(rsc_drbd_7788:monitor:stderr) No response from the DRBD driver! Is the
module loaded?

Aug 11 07:13:12 arc-stgsky-agg1 lrmd: [5233]: info: RA output:
(rsc_drbd_7788:monitor:stderr) Command '/sbin/drbdsetup /dev/drbd0
state' terminated with exit code 20 drbdadm aborting

Aug 11 07:13:16 arc-stgsky-agg1 crmd: [5238]: info: process_lrm_event:
LRM operation rsc_drbd_7788_monitor_120000 (call=477, rc=7) complete


My current /proc/drbd:

version: 8.2.5 (api:88/proto:86-88)

GIT-hash: 9faf052fdae5ef0c61b4d03890e2d2eab550610c build by
root at arc-stgsky-agg1.wsicorp.com, 2008-05-19 10:01:19

 0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate C r---

    ns:593314408 nr:296596 dw:592558332 dr:124756728 al:2019770 bm:1535
lo:0 pe:0 ua:0 ap:0

        resync: used:0/31 hits:65601 misses:191 starving:0 dirty:0

        act_log: used:0/257 hits:682916576 misses:2027491 starving:4
dirty:7717 changed:2019770



Doug Knight


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