[DRBD-user] Primary/Unknown Issue

jcrosby jcrosby at scotiaweather.com
Wed Feb 13 16:45:19 CET 2008

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


Good afternoon,

I took a look through the mailing list but my issue didn't seem to jump 
out at me, so I'll ask it.

Right now I have DRBD8 tied in with Heartbeat v1.  Running on a Ubuntu 
7.04 install, kernel 2.6.22-14-server. I am running a MySQL database on 
the DRBD partition.

When I power down the secondary machine to simulate a complete hardware 
failure. The /proc/drbd file on the Primary shows:
cs:WFConnection st:Primary/Unknown ds:UpToDate/DUnknown C r---

I expected to see that, but after a few minutes my mounted partition 
suddenly stopped responding.  I could cd into it, but couldn't do 
anything else.

Is this suppose to happen, and if it is how can I stop it from 
happening?  Since having my database freeze up if any of the DRBD nodes 
go out is not really helpful.

Here is my drbd.conf file:
*resource r0 {
 protocol C;
 startup {
   wfc-timeout         0;  ##
   degr-wfc-timeout  120;  ## 2 minutes.
 }
 disk {
   on-io-error detach;
 }
 net {
   # timeout           60;
   # connect-int       10;
   # ping-int          10;
   # max-buffers     2048;
   # max-epoch-size  2048;
 }
 syncer {
       rate 100M;
 }
 on Primary {
   device      /dev/drbd0;
   disk        /dev/sdb2;
   address     192.168.2.2:7789;
   meta-disk   internal;
 }

 on Secondary {
   device     /dev/drbd0;
   disk       /dev/sda4;
   address    192.168.2.3:7789;
   meta-disk   internal;
 }
}*

-- 
Joseph Crosby
Network Administrator
Scotia Weather Service Inc.
netadmin at scotiaweather.com
-----------
A byte walks into a bar and orders a pint. Bartender asks him "What's wrong?" Byte says "Parity error." Bartender nods and says "Yeah, I thought you looked a bit off."




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