glusterfs - xen - domU - client replication error

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Hi all,

shortly explain our big problem:

glusterfsverson 2.0.8
xenversion 3.4.1
we have 12 GB image domUs with tap:aio

we have two physikal server with 48TB and 2 physikal server with xen. we use client-side-replikation and we start the domUs from a LUN on glusterfs which is sized 700GB. Now we have to test the replication on the 2 glusterfs server started a domU on it.domU start and now we deaktivate the network on glusterfs server 1. the domU is runing further

log message on client:

[2009-11-26 17:01:02] E [client-protocol.c:457:client_ping_timer_expired] gfs-01-01: Server 192.168.11.11:6997 has not responded in the last 10 seconds, disconnecting.

[2009-11-26 17:01:02] E [saved-frames.c:165:saved_frames_unwind] gfs-01-01: forced unwinding frame type(1) op(FINODELK)

[2009-11-26 17:01:02] E [saved-frames.c:165:saved_frames_unwind] gfs-01-01: forced unwinding frame type(2) op(PING)

[2009-11-26 17:01:02] N [client-protocol.c:6438:notify] gfs-01-01: disconnected

[2009-11-26 17:01:50] E [socket.c:745:socket_connect_finish] gfs-01-01: connection to 192.168.11.11:6997 failed (No route to host)

[2009-11-26 17:01:50] E [socket.c:745:socket_connect_finish] gfs-01-01: connection to 192.168.11.11:6997 failed (No route to host)


on domU we try a few test:
1. files create before network goes down
2. create while - files after we deaktivate the network on glusterfs 1

We activate the network on glusterfs server1

log message:

[2009-11-26 17:03:13] N [client-protocol.c:5733:client_setvolume_cbk] gfs-01-01: Connected to 192.168.11.11:6997, attached to remote volume 'domU-images'.

[2009-11-26 17:03:13] N [client-protocol.c:5733:client_setvolume_cbk] gfs-01-01: Connected to 192.168.11.11:6997, attached to remote volume 'domU-images'.


3. and create after files

all file were here.

but after we reboot the domU - it cames to the filesystem repair modus - here we have to repair the filesystem of the domU and reboot again. after reboot the domU start but is completly destroyed:
- some files corupt
- and files we created before network goes down are here. but no while and after files!!!

so my question:
what should we do?!?

this scenario must work

i.g.:  glusterfs server1 went down and the domU have to run further

is there a spezial parameter in glusterfs config?

Roland Fischer





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