[drbd-mc] Help : Heartbeat failover not working

[vijay patel]

Hi,

I have configured DRBD and Heartbeat on two nodes for High Availability of NFS.

[root at PdCuLx0501p ~]# rpm -qa | grep drbd
drbd82-8.2.6-1.el5.centos
kmod-drbd82-8.2.6-2


[root at PdCuLx0501p ~]# rpm -qa | grep heartbeat
heartbeat-pils-2.1.4-11.el5
heartbeat-ldirectord-2.1.4-11.el5
heartbeat-stonith-2.1.4-11.el5
heartbeat-devel-2.1.4-11.el5
heartbeat-2.1.4-11.el5
heartbeat-gui-2.1.4-11.el5


[root at PdCuLx0501p ~]# cat /proc/drbd
version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by buildsvn at c5-x8664-build, 2008-10-03 11:30:17
0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate B r---
ns:1453512252 nr:1076780 dw:1454589032 dr:4588973 al:57316104 bm:686 lo:0 pe:0 ua:0 ap:0 oos:0
[root at PdCuLx0501p ~]#


drbd status is connected and in sync. Now when i stop heartbeat service on primary server to test failover my primary server gets rebooted. I can see secondary server acquiring virtual ip and mounting the common share but on client i am getting error "permission denied. /mnt/nfs is readonly".

Here is my configuration files:

[root at PdCuLx0501p ~]# cat /etc/drbd.conf
global {
usage-count ask;
}

common {
syncer { rate 250M; }
}
resource r0 {
protocol B;
#incon-degr-cmd "halt -f";
startup {
degr-wfc-timeout 120; # 2 minutes.
}
disk {
on-io-error detach;
}
net {
}
syncer {
rate 250M;
#group 1;
al-extents 257;
}
on PdCuLx0501p {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.213:7788;
}
on PdCuLx0502s {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.214:7788;
}
}


[root at PdCuLx0501p ~]# cat /etc/ha.d/ha.cf
logfacility local0
keepalive 2
deadtime 30
bcast eth0
node PdCuLx0501p
node PdCuLx0502s
auto_failback on


[root at PdCuLx0501p ~]# cat /etc/ha.d/haresources
PdCuLx0501p IPaddr::10.153.80.215/24/eth0 drbddisk::r0 Filesystem::/dev/drbd0::/nfs4exports::ext3 nfslock nfs


[root at PdCuLx0501p ~]# cat /etc/ha.d/authkeys
auth 3
3 md5 50f4a0bd87aedb051e93b6aa16f1433e


Now what is the problem in my configuration? Why i am not able to mount files system from client when seconday has acquired primary status and why primary gets restarted on stopping heartbeat service?

Regards,
Vijay



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-mc/attachments/20110803/a3121d65/attachment.htm>

[Alan Robertson]

Post by vijay patel
Hi,
I have configured DRBD and Heartbeat on two nodes for High
Availability of NFS.
[root at PdCuLx0501p ~]# rpm -qa | grep drbd
drbd82-8.2.6-1.el5.centos
kmod-drbd82-8.2.6-2
[root at PdCuLx0501p ~]# rpm -qa | grep heartbeat
heartbeat-pils-2.1.4-11.el5
heartbeat-ldirectord-2.1.4-11.el5
heartbeat-stonith-2.1.4-11.el5
heartbeat-devel-2.1.4-11.el5
heartbeat-2.1.4-11.el5
heartbeat-gui-2.1.4-11.el5
[root at PdCuLx0501p ~]# cat /proc/drbd
version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by
buildsvn at c5-x8664-build <mailto:buildsvn at c5-x8664-build>, 2008-10-03
11:30:17
0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate B r---
ns:1453512252 nr:1076780 dw:1454589032 dr:4588973 al:57316104
bm:686 lo:0 pe:0 ua:0 ap:0 oos:0
[root at PdCuLx0501p ~]#
drbd status is connected and in sync. Now when i stop heartbeat
service on primary server to test failover my primary server gets
rebooted. I can see secondary server acquiring virtual ip and mounting
the common share but on client i am getting error "permission denied.
/mnt/nfs is readonly".
[root at PdCuLx0501p ~]# cat /etc/drbd.conf
global {
usage-count ask;
}
common {
syncer { rate 250M; }
}
resource r0 {
protocol B;
#incon-degr-cmd "halt -f";
startup {
degr-wfc-timeout 120; # 2 minutes.
}
disk {
on-io-error detach;
}
net {
}
syncer {
rate 250M;
#group 1;
al-extents 257;
}
on PdCuLx0501p {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.213:7788;
}
on PdCuLx0502s {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.214:7788;
}
}
[root at PdCuLx0501p ~]# cat /etc/ha.d/ha.cf
logfacility local0
keepalive 2
deadtime 30
bcast eth0
node PdCuLx0501p
node PdCuLx0502s
auto_failback on
[root at PdCuLx0501p ~]# cat /etc/ha.d/haresources
PdCuLx0501p IPaddr::10.153.80.215/24/eth0 drbddisk::r0
Filesystem::/dev/drbd0::/nfs4exports::ext3 nfslock nfs
[root at PdCuLx0501p ~]# cat /etc/ha.d/authkeys
auth 3
3 md5 50f4a0bd87aedb051e93b6aa16f1433e
Now what is the problem in my configuration? Why i am not able to
mount files system from client when seconday has acquired primary
status and why primary gets restarted on stopping heartbeat service?

Have you tried stopping NFS and unmounting by hand?

I have seen recent NFS bugs where it can't unmount it after you stop NFS
(NFS doesn't release all its references to the filesystem).

With pacemaker, and STONITH configured, then that will cause the system
to reboot. But, for old-style haresources, I don't know what would
cause that.

But I would do this test by hand and see what result you get.

[Jake Smith]

Vijay - you will have better luck posting these questions in the DRBD users mailing list as this (mc) list is specifically for the java management console.


Jake

----- Original Message -----

From: drbd-mc-request at lists.linbit.com
To: drbd-mc at lists.linbit.com
Sent: Thursday, August 4, 2011 6:00:04 AM
Subject: drbd-mc Digest, Vol 30, Issue 2

Send drbd-mc mailing list submissions to
drbd-mc at lists.linbit.com

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.linbit.com/mailman/listinfo/drbd-mc
or, via email, send a message with subject or body 'help' to
drbd-mc-request at lists.linbit.com

You can reach the person managing the list at
drbd-mc-owner at lists.linbit.com

When replying, please edit your Subject line so it is more specific
than "Re: Contents of drbd-mc digest..."


Today's Topics:

1. Help : Heartbeat failover not working (vijay patel)


----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Aug 2011 20:42:05 +0530
From: vijay patel <catchvjay at hotmail.com>
Subject: [drbd-mc] Help : Heartbeat failover not working
To: <drbd-mc at lists.linbit.com>
Message-ID: <BLU139-W869086011A5EB71EBFBF6B63A0 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"


Hi,

I have configured DRBD and Heartbeat on two nodes for High Availability of NFS.

[root at PdCuLx0501p ~]# rpm -qa | grep drbd
drbd82-8.2.6-1.el5.centos
kmod-drbd82-8.2.6-2


[root at PdCuLx0501p ~]# rpm -qa | grep heartbeat
heartbeat-pils-2.1.4-11.el5
heartbeat-ldirectord-2.1.4-11.el5
heartbeat-stonith-2.1.4-11.el5
heartbeat-devel-2.1.4-11.el5
heartbeat-2.1.4-11.el5
heartbeat-gui-2.1.4-11.el5


[root at PdCuLx0501p ~]# cat /proc/drbd
version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by buildsvn at c5-x8664-build, 2008-10-03 11:30:17
0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate B r---
ns:1453512252 nr:1076780 dw:1454589032 dr:4588973 al:57316104 bm:686 lo:0 pe:0 ua:0 ap:0 oos:0
[root at PdCuLx0501p ~]#


drbd status is connected and in sync. Now when i stop heartbeat service on primary server to test failover my primary server gets rebooted. I can see secondary server acquiring virtual ip and mounting the common share but on client i am getting error "permission denied. /mnt/nfs is readonly".

Here is my configuration files:

[root at PdCuLx0501p ~]# cat /etc/drbd.conf
global {
usage-count ask;
}

common {
syncer { rate 250M; }
}
resource r0 {
protocol B;
#incon-degr-cmd "halt -f";
startup {
degr-wfc-timeout 120; # 2 minutes.
}
disk {
on-io-error detach;
}
net {
}
syncer {
rate 250M;
#group 1;
al-extents 257;
}
on PdCuLx0501p {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.213:7788;
}
on PdCuLx0502s {
device /dev/drbd0;
meta-disk /dev/sdb2[0];
disk /dev/sdb3;
address 10.153.80.214:7788;
}
}


[root at PdCuLx0501p ~]# cat /etc/ha.d/ha.cf
logfacility local0
keepalive 2
deadtime 30
bcast eth0
node PdCuLx0501p
node PdCuLx0502s
auto_failback on


[root at PdCuLx0501p ~]# cat /etc/ha.d/haresources
PdCuLx0501p IPaddr::10.153.80.215/24/eth0 drbddisk::r0 Filesystem::/dev/drbd0::/nfs4exports::ext3 nfslock nfs


[root at PdCuLx0501p ~]# cat /etc/ha.d/authkeys
auth 3
3 md5 50f4a0bd87aedb051e93b6aa16f1433e


Now what is the problem in my configuration? Why i am not able to mount files system from client when seconday has acquired primary status and why primary gets restarted on stopping heartbeat service?

Regards,
Vijay



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-mc/attachments/20110803/a3121d65/attachment.html>

------------------------------

_______________________________________________
drbd-mc mailing list
drbd-mc at lists.linbit.com
http://lists.linbit.com/mailman/listinfo/drbd-mc


End of drbd-mc Digest, Vol 30, Issue 2
**************************************


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-mc/attachments/20110804/30542886/attachment.htm>