pierre.lebrech at laposte
Aug 4, 2009, 3:47 AM
Post #1 of 2
(706 views)
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switch over takes a quite long time
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Hello,
context : 3-node cluster, every node connected, HA services on node1, DRBD version 8.3.2 on linux 2.6.30.
I switch HA services over to node2 with "/usr/lib/heartbeat/hb_standby all" from node1.
It takes a long time to perform : 20 seconds.
I have this in logs (ha-log) :
on node1 :
ResourceManager[7475]: 2009/08/04_11:53:27 info: Running /etc/ha.d/resource.d/drbdupper r0-U start
Filesystem[7799]: 2009/08/04_11:53:47 INFO: Resource is stopped
ResourceManager[7475]: 2009/08/04_11:53:47 info: Running /etc/ha.d/resource.d/Filesystem /dev/drbd1 /data ext3 start
and on node2 :
heartbeat[4836]: 2009/08/04_11:53:26 info: Local standby process completed [all].
heartbeat[4836]: 2009/08/04_11:53:26 info: New standby state: 3
heartbeat[4836]: 2009/08/04_11:53:26 info: Managed go_standby process 12561 exited with return code 0.
heartbeat[4836]: 2009/08/04_11:53:48 WARN: 1 lost packet(s) for [node1] [7702:7704]
heartbeat[4836]: 2009/08/04_11:53:48 info: remote resource transition completed.
Question : why drbdupper takes such a long time to start? Is that normal?
Thanks.
here is the drbd.conf file :
global {
usage-count yes;
}
common {
syncer { rate 10M; }
net {
max-buffers 40000;
}
}
resource r0 {
protocol C;
handlers {
pri-on-incon-degr "echo o > /proc/sysrq-trigger ; halt -f";
pri-lost-after-sb "echo o > /proc/sysrq-trigger ; halt -f";
local-io-error "echo o > /proc/sysrq-trigger ; halt -f";
}
startup {
wfc-timeout 0;
degr-wfc-timeout 120;
}
disk {
on-io-error detach;
}
net {
after-sb-0pri disconnect;
after-sb-1pri disconnect;
after-sb-2pri disconnect;
rr-conflict disconnect;
}
syncer {
rate 90M;
al-extents 128;
csums-alg md5;
}
on node1 {
device /dev/drbd0;
disk /dev/md2;
address 10.0.0.1:7788;
meta-disk /dev/md1 [0];
}
on node2 {
device /dev/drbd0;
disk /dev/md2;
address 10.0.0.2:7788;
meta-disk /dev/md1 [0];
}
}
resource r0-U {
protocol C;
syncer {
csums-alg md5;
rate 5M;
}
stacked-on-top-of r0 {
device /dev/drbd1;
address 192.168.2.15:7788;
}
on node3 {
device /dev/drbd1;
disk /dev/md2;
address 192.168.2.14:7788;
meta-disk internal;
}
}
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