Maros Timko wrote:
Rupertt,
TOE - TCP Offloading Engine is HW support of network card to improve
performance. It is usually enabled by default on your network card.
Check "ethtool -k" option and search on this list.
Tino
2009/7/30 Rupert <[email protected] <mailto:[email protected]>>
Maros Timko wrote:
Heiko,
whhich machine crashes? Primary only, both?
I think it is primary but only in case xen VM is running on
top of DRBD. You can prevent crashes by disabling TOE. Or use
DRBD 8.3.2, AFAIK there should be a parameter that should help
in such setups.
Check older posts in this list.
Tino
Hello tino,
you mean this post?
http://archives.free.net.ph/message/20071214.134353.11ba93b1.de.html
this is what ethtool show me:
ethtool -k eth0
Offload parameters for eth0:
Cannot get device rx csum settings: Operation not supported
Cannot get device udp large send offload settings: Operation not supported
rx-checksumming: off
tx-checksumming: on
scatter-gather: on
tcp segmentation offload: on
udp fragmentation offload: off
generic segmentation offload: off
will disabling tx have any affect on traffic over this device?
there are 3 other VM that use that device, so i hesitate to just change
this setting.
cheers
.r
Hello Tino,
in one case I have a primary on each machine, means 2 drbd devices.
In the other case we have only 1 drbd device, and there only the
primary crashed.
What means TOE, havent found anything about that yet?
Someone on this list suggested that I should use protocol A, but
we dont want to loose
any data, so we cant use that.
I am thinking about updating, but I first have to test if these
packages work with our system,
CentOS 5.x.
so long
2009/7/27 Heiko <[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>>
On Mon, Jul 27, 2009 at 2:18 PM, Martin Gombac
<[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>> wrote:
In my humble opinion, drbd does't crash if you loose
network
connections. :-)
Would be a first in history.
Maybe heartbeat puts both sources to primary and when they
join you got split brain.
In this case you didn't set up heartbeat correctly.
Hello M.,
i had some people here that confirmed a bug in protocol C that
causes these crashes.
I also thought of heartbeat, but I now have 2 ucast devices
and we
still have crashes and
no entries in the logfile that say it does a reboot on purpose:
only these messages:
heartbeat[2880]: 2009/07/27_11:59:37 ERROR: glib: Unable to
send
[-1] ucast packet: No such device
heartbeat[2880]: 2009/07/27_11:59:37 ERROR: write_child: write
failure on ucast eth0.: No such device
my ha config looks like this
#use_logd on
logfile /var/log/ha-log
debugfile /var/log/ha-debug
logfacility local0
keepalive 2
deadtime 10
warntime 3
initdead 20
udpport 694
ucast eth0 172.17.8.201
ucast eth0 172.17.8.202
ucast eth1 172.31.0.1
ucast eth1 172.31.0.2
node xen-a1.fra1
node xen-b1.fra1
auto_failback on
haresources:
xen-a1.fra1 drbddisk::blrg xen::blrg-vm1
thnx a lot
.r
Regards,
M.
On 27, Jul2009, at 1:47 PM, Heiko wrote:
Hello,
i have to convince my boss that our server crashes i
reported on this list are due
to a non exsiting dedicated line! We have all our drbd
traffic routed through switches
and they often just crash.
Now I have to create a test setup to show them that
when I
plug the corg/shutdown the networkdevice
the machines tend to crash.
Since I dont have any spare machines I would like
to use
loopback devices,
are these supported by now? I found some list
entries that
say this is not supported by drbd!
would this be enough to get the machines crashing?
We use drbd8.0 and 8.2 and have on both these crashes.
cheers.
_______________________________________________
drbd-user mailing list
[email protected]
<mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>
http://lists.linbit.com/mailman/listinfo/drbd-user
_______________________________________________
drbd-user mailing list
[email protected]
<mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>
http://lists.linbit.com/mailman/listinfo/drbd-user
------------------------------------------------------------------------
_______________________________________________
drbd-user mailing list
[email protected] <mailto:[email protected]>
http://lists.linbit.com/mailman/listinfo/drbd-user
------------------------------------------------------------------------
_______________________________________________
drbd-user mailing list
[email protected]
http://lists.linbit.com/mailman/listinfo/drbd-user
_______________________________________________
drbd-user mailing list
[email protected]
http://lists.linbit.com/mailman/listinfo/drbd-user
