[DRBD-user] DRBD Sync stalls

Димитър Бойн dboyn at postpath.com
Tue Aug 4 06:25:09 CEST 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Hi, again!
So hoping that the new DRBD 8.3 might address my issue I did the upgrade.
:-( it didn't help.
As I did not receive any answers to my original post 2 weeks ago I guess my problem is unique?
What would be the best way to troubleshoot? Any way to troubleshoot?
Thanks as always!
./Dimitar Boyn
From: drbd-user-bounces at lists.linbit.com On Behalf Of ??????? ????

 Sent: Tuesday, July 14, 2009 4:40 PM

 To: drbd-user at lists.linbit.com

 Subject: [DRBD-user] DRBD Sync stalls

Does anybody have an idea how should I troubleshoot the following problem?
My peers were connecting and syncronizyng without any problem until network guys introduced a firewall between the peers

 (this is all in my lab but I wanted to emulate remote site replication)
As you can see the peers are still connecting OK and synchronization starts but in a few second it stalls and remains in this state for ever.
What is even worse is that this introduces some kind of kernel problem as with time the machine becomes inaccessible through ssh.
Ping is alive but no telnet can be established to any of the active service ports.
Please help with any troubleshooting suggestions or ideas!
Every 2.0s: cat /proc/drbd                                                                                                         Tue Jul 14 16:30:00 2009
version: 8.0.13 (api:86/proto:86)
GIT-hash: ee3ad77563d2e87171a3da17cc002ddfd1677dbe build by buildsvn at c5-x8664-build, 2008-10-03 10:12:56
 0: cs:SyncSource st:Primary/Secondary ds:UpToDate/Inconsistent C r---
    ns:178836 nr:0 dw:745036 dr:2388809 al:5441 bm:5364 lo:1 pe:2056 ua:251 ap:2049
        [>....................] sync'ed:  0.1% (183823/183825)M
        resync: used:1/61 hits:721 misses:4 starving:0 dirty:0 changed:4
        act_log: used:4/127 hits:180818 misses:5996 starving:0 dirty:555 changed:5441
10: cs:Unconfigured
Boyn, Dimitar G.

 Technical Marketing Engineer

 dboyn at postpath.com


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