Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
(I buried this question in another post before the holidays and it didn't seem
to get any response, so I'm trying again.
System:
2 IBM Xeon blades as NFS/DRBD log servers setup as
Primary/Secondary.
20+ Blades running various packages (JBoss, Jabber,
Postgres, etc) logging
to the NFS log server.
All blades running RH 4 ES.
Right now I have all of my processes connecting to the Primary
side of a my DRBD setup. I'm using this setup as a log server for
processes on multiple blades on a blade server.
When I do the HA switchover, my processes lock for about 15 seconds
(when using soft mounted NFS directories) before continuing to write
to the files their log files on the secondary server. I had thought
that since I moved the /var/lib/nfs directory to my drbd shared
directory that the failover would be pretty much instantaneous.
Do I have a problem in my setup somewhere or is 15 seconds for
failover fairly standard?
Michael