<div dir="ltr">I am using drbd 0.7.22, 2 nodes with heartbeat on 2 SLES10 SP4 XEN virtual servers; here are the configs:<div><br></div><div><div>3255:/etc # drbdadm dump all</div><div>resource r0 {</div><div> protocol C;</div>
<div> incon-degr-cmd "echo '!DRBD! pri on incon-degr' | wall ; sleep 60 ; halt -f";</div><div> 3255 {</div><div> device /dev/drbd0;</div><div> disk /dev/DATA/RHAPSODY;</div>
<div> address 172.xx.xx.22:7788;</div><div> meta-disk /dev/DATA/DRBD_METADATA [0];</div><div> }</div><div> on 3256 {</div><div> device /dev/drbd0;</div><div> disk /dev/DATA/RHAPSODY;</div>
<div> address 172.xx.xx.33:7788;</div><div> meta-disk /dev/DATA/DRBD_METADATA [0];</div><div> }</div><div> disk {</div><div> on-io-error detach;</div><div> }</div><div> syncer {</div>
<div> rate 50M;</div><div> group 1;</div><div> al-extents 257;</div><div> }</div><div>}</div></div><div><br></div><div>and</div><div><br></div><div><div>3256:/ # drbdadm dump all</div>
<div>resource r0 {</div><div> protocol C;</div><div> incon-degr-cmd "echo '!DRBD! pri on incon-degr' | wall ; sleep 60 ; halt -f";</div><div> on 3256 {</div><div> device /dev/drbd0;</div>
<div> disk /dev/DATA/RHAPSODY;</div><div> address 172.xx.xx.33:7788;</div><div> meta-disk /dev/DATA/DRBD_METADATA [0];</div><div> }</div><div> on 3255 {</div><div> device /dev/drbd0;</div>
<div> disk /dev/_DATA/RHAPSODY;</div><div> address 172.xx.xx.22:7788;</div><div> meta-disk /dev/DATA/DRBD_METADATA [0];</div><div> }</div><div> disk {</div><div> on-io-error detach;</div>
<div> }</div><div> syncer {</div><div> rate 50M;</div><div> group 1;</div><div> al-extents 257;</div><div> }</div><div>}</div></div><div><br></div><div>Everything works fine for a very short while and then the sync's between the nodes fail with the following:</div>
<div><br></div><div><div>3255:/etc # cat /proc/drbd</div><div>version: 0.7.22 (api:79/proto:74)</div><div>SVN Revision: 2572 build by lmb@dale, 2006-10-25 18:17:21</div><div> 0: cs:SyncSource st:Primary/Secondary ld:Consistent</div>
<div> ns:63181996 nr:0 dw:62680576 dr:2644442 al:446 bm:585 lo:0 pe:0 ua:0 ap:0</div><div> [>...................] sync'ed: 0.1% (18100/18100)M</div><div> stalled</div></div><div><br></div><div>3256:/ # cat /proc/drbd<br>
</div><div><div>version: 0.7.22 (api:79/proto:74)</div><div>SVN Revision: 2572 build by lmb@dale, 2006-10-25 18:17:21</div><div> 0: cs:SyncTarget st:Secondary/Primary ld:Inconsistent</div><div> ns:0 nr:78284 dw:78284 dr:0 al:0 bm:0 lo:0 pe:1280 ua:0 ap:0</div>
<div> [>...................] sync'ed: 0.1% (18100/18100)M</div><div> stalled</div></div><div><br></div><div>I see the following errors in /var/log/messages:</div><div><br></div><div><div>Nov 5 11:50:05 w583s3255 kernel: drbd0: drbd0_asender [5880]: cstate SyncSource --> NetworkFailure</div>
<div>Nov 5 11:50:05 w583s3255 kernel: drbd0: drbd0_receiver [2909]: cstate NetworkFailure --> Unconnected</div><div>Nov 5 11:50:06 w583s3255 kernel: drbd0: Handshake successful: DRBD Network Protocol version 74</div>
<div>Nov 5 11:55:08 w583s3255 kernel: drbd0: drbd0_asender [4856]: cstate SyncSource --> NetworkFailure</div><div>Nov 5 11:55:08 w583s3255 kernel: drbd0: drbd0_receiver [2909]: cstate NetworkFailure --> Unconnected</div>
</div><div><br></div><div><br></div><div>However tcpdump between the servers is active and indicates a healthy connection state.</div><div><br></div><div>Please let me know if any other information is required</div><div><br>
</div><div><br></div><div>RJ</div><div><br></div><div><br></div><div><br></div><div><br></div></div>