[DRBD-user] drbd 0.7.12 has an extremely slow sync speed.

Andre Konopka andre.konopka at presse-data.de
Tue Aug 30 15:03:21 CEST 2005

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


Hi

> 
> on the secondary (still 0.7.11) I invalidated 'r0'
> 
> Aug 30 11:41:52 pdftpn002 kernel: drbd0: drbdsetup [6982]: cstate 
> Connected --> WFBitMapT
> Aug 30 11:41:52 pdftpn002 kernel: drbd0: 1048576 KB now marked 
> out-of-sync by on disk bit-map.
> Aug 30 11:41:52 pdftpn002 kernel: drbd0: drbdsetup [6982]: cstate 
> WFBitMapT --> SyncTarget
> Aug 30 11:41:52 pdftpn002 kernel: drbd0: Resync started as SyncTarget 
> (need to sync 1048576 KB [262144 bits set]).
> 
> 
> Now it's 2 hours later and the sync is still running!!!!!
> 
> 
>

After three hours I stopped 'drbd'. I upgraded my second node to drbd 
0.7.12 and started over....

Aug 30 14:38:39 pdftpn002 kernel: drbd2: Connection established.
Aug 30 14:38:39 pdftpn002 kernel: drbd2: I am(S): 
1:00000002:00000001:00000012:00000004:01
Aug 30 14:38:39 pdftpn002 kernel: drbd2: Peer(S): 
1:00000002:00000001:00000012:00000004:01
Aug 30 14:38:39 pdftpn002 kernel: drbd2: drbd2_receiver [8112]: cstate 
WFReportParams --> Connec
ted
Aug 30 14:38:39 pdftpn002 kernel: drbd2: Secondary/Unknown --> 
Secondary/Secondary
Aug 30 14:38:39 pdftpn002 kernel: drbd0: drbd0_receiver [8108]: cstate 
WFBitMapT --> SyncTarget
Aug 30 14:38:39 pdftpn002 kernel: drbd0: Resync started as SyncTarget 
(need to sync 1015808 KB [
253952 bits set]).
Aug 30 14:39:06 pdftpn002 kernel: drbd0: Secondary/Secondary --> 
Secondary/Primary
Aug 30 14:39:06 pdftpn002 kernel: drbd1: Secondary/Secondary --> 
Secondary/Primary
Aug 30 14:39:06 pdftpn002 kernel: drbd2: Secondary/Secondary --> 
Secondary/Primary

Now both nodes were on drbd 0.7.12... No success, after ten minutes of 
waiting I stopped both nodes and downgraded to drbd 0.7.11
The log shows me....

Aug 30 14:51:22 pdftpn002 kernel: drbd0: drbd0_receiver [8790]: cstate 
WFBitMapT --> SyncTarget
Aug 30 14:51:22 pdftpn002 kernel: drbd0: Resync started as SyncTarget 
(need to sync 966660 KB [241665 bits set]).

[snip]


Aug 30 14:52:47 pdftpn002 kernel: drbd0: Resync done (total 85 sec; 
paused 0 sec; 11372 K/sec)
Aug 30 14:52:47 pdftpn002 kernel: drbd0: drbd0_worker [8781]: cstate 
SyncTarget --> Connected


Success


Best regards

Andre





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