Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi Felix,
> this reminds me of something I've seen during a drbdadm adjust.
> The adjusting Primary would re-initialize its DRBD and then (apparently)
> sync back its hot AL extents from the peer. Seeing as the peer was
> Inconsistent in your case (it was still syncing), this can't work, and
> the Primary may go StandAlone as a result.
What? Do you say the primary updates its data from the secondary during
an "adjust" command?
> Please try and verify this scenario using the kernel logs of your Primary.
Well, I'm not sure about the logfile entries- if appended the first
entry where it went bananas below.
>
> It's a good question why DRBD would commit to such destructive action
> without issuing a warning. What version are you using? I'm inclined to
> call bug on this one.
drbd82-8.2.6-1.el5.centos
Greetings
Christian
Jul 24 21:31:38 backuppc kernel: drbd0: Handshake successful: Agreed
network protocol version 88
Jul 24 21:31:38 backuppc kernel: drbd0: Peer authenticated using 20
bytes of 'sha1' HMAC
Jul 24 21:31:38 backuppc kernel: drbd0: conn( WFConnection ->
WFReportParams )
Jul 24 21:31:38 backuppc kernel: drbd0: Starting asender thread (from
drbd0_receiver [3302])
Jul 24 21:31:38 backuppc kernel: drbd0: data-integrity-alg: <not-used>
Jul 24 21:31:39 backuppc kernel: drbd0: peer( Unknown -> Secondary )
conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> UpTo
Date )
Jul 24 21:31:39 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:31:41 backuppc kernel: drbd0: conn( WFBitMapS -> SyncSource )
pdsk( UpToDate -> Inconsistent )
Jul 24 21:31:41 backuppc kernel: drbd0: Began resync as SyncSource (will
sync 0 KB [0 bits set]).
Jul 24 21:31:41 backuppc kernel: drbd0: Resync done (total 1 sec; paused
0 sec; 0 K/sec)
Jul 24 21:31:41 backuppc kernel: drbd0: conn( SyncSource -> Connected )
pdsk( Inconsistent -> UpToDate )
Jul 24 21:31:41 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:41:58 backuppc kernel: drbd0: disk( UpToDate -> Diskless )
Jul 24 21:41:58 backuppc kernel: drbd0: disk( Diskless -> Attaching )
Jul 24 21:41:58 backuppc kernel: drbd0: Found 4 transactions (192 active
extents) in activity log.
Jul 24 21:41:58 backuppc kernel: drbd0: max_segment_size ( = BIO size )
= 32768
Jul 24 21:41:58 backuppc kernel: drbd0: reading of bitmap took 186 jiffies
Jul 24 21:41:58 backuppc kernel: drbd0: recounting of set bits took
additional 121 jiffies
Jul 24 21:41:58 backuppc kernel: drbd0: 0 KB (0 bits) marked out-of-sync
by on disk bit-map.
Jul 24 21:41:58 backuppc kernel: drbd0: Marked additional 508 MB as
out-of-sync based on AL.
Jul 24 21:41:58 backuppc kernel: drbd0: disk( Attaching -> Negotiating )
Jul 24 21:41:58 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:42:07 backuppc kernel: drbd0: State change failed: Refusing to
be Primary without at least one UpToDate disk
Jul 24 21:42:07 backuppc kernel: drbd0: state = { cs:Connected
st:Primary/Secondary ds:Negotiating/UpToDate r--- }
Jul 24 21:42:07 backuppc kernel: drbd0: wanted = { cs:Connected
st:Primary/Secondary ds:Negotiating/Diskless r--- }
Jul 24 21:42:09 backuppc kernel: drbd0: Writing the whole bitmap, full
sync required after drbd_sync_handshake.
Jul 24 21:42:09 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:42:09 backuppc kernel: drbd0: writing of bitmap took 101 jiffies
Jul 24 21:42:09 backuppc kernel: drbd0: 1204 GB (315595351 bits) marked
out-of-sync by on disk bit-map.
Jul 24 21:42:09 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:42:09 backuppc kernel: drbd0: conn( Connected -> WFBitMapT )
Jul 24 21:42:10 backuppc kernel: drbd0: conn( WFBitMapT -> WFSyncUUID )
Jul 24 21:42:10 backuppc kernel: drbd0: helper command: /sbin/drbdadm
before-resync-target
Jul 24 21:42:10 backuppc kernel: drbd0: conn( WFSyncUUID -> SyncTarget )
disk( Negotiating -> Inconsistent )
Jul 24 21:42:10 backuppc kernel: drbd0: Began resync as SyncTarget (will
sync 1262381404 KB [315595351 bits set]).
Jul 24 21:42:10 backuppc kernel: drbd0: Writing meta data super block now.
Jul 24 21:48:24 backuppc kernel: drbd0: State change failed: Refusing to
be Primary without at least one UpToDate disk
Jul 24 21:48:24 backuppc kernel: drbd0: state = { cs:SyncTarget
st:Primary/Secondary ds:Inconsistent/UpToDate r--- }
Jul 24 21:48:24 backuppc kernel: drbd0: wanted = { cs:TearDown
st:Primary/Unknown ds:Inconsistent/DUnknown r--- }
Jul 24 21:48:24 backuppc kernel: drbd0: State change failed: Refusing to
be Primary without at least one UpToDate disk
Jul 24 21:48:24 backuppc kernel: drbd0: state = { cs:SyncTarget
st:Primary/Secondary ds:Inconsistent/UpToDate r--- }
Jul 24 21:48:24 backuppc kernel: drbd0: wanted = { cs:TearDown
st:Primary/Unknown ds:Inconsistent/Outdated r--- }