Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi,
After resync, disk status is "Outdated" sometimes.
1. drbd.conf
- we configure 5 nodes but use only 3 nodes on test.
[root at drbd9-01 ~]# drbdadm dump r0
# resource r0 on drbd9-01: not ignored, not stacked
# defined at /etc/drbd.d/r0.res:1
resource r0 {
device /dev/drbd1 minor 1;
meta-disk internal;
on drbd9-01 {
node-id 0;
address ipv4 100.100.10.11:7000;
}
on drbd9-02 {
node-id 1;
address ipv4 100.100.10.21:7000;
}
on drbd9-03 {
node-id 2;
address ipv4 100.100.10.31:7000;
}
on drbd9-04 {
node-id 3;
address ipv4 100.100.10.41:7000;
}
on drbd9-05 {
node-id 4;
address ipv4 100.100.10.51:7000;
}
connection-mesh {
hosts drbd9-01 drbd9-02 drbd9-03 drbd9-04 drbd9-05;
}
}
2. Version
[root at drbd9-01 ~]# cat /proc/drbd
version: 9.0.1-1 (api:2/proto:86-111)
GIT-hash: f57acfc22d29a95697e683fb6bbacd9a1ad4348e build by root at drbd9-01,
2016-02-16 17:26:06
3. Test
- 1) drbd up on 3 nodes
- 2) fullsync
4. Status/Logs
1) Node1
[root at drbd9-01 ~]# drbdadm primary --force r0
[root at drbd9-01 ~]# drbdadm status r0
r0 role:Primary
disk:UpToDate
drbd9-02 role:Secondary
replication:SyncSource peer-disk:Inconsistent done:0.02
drbd9-03 role:Secondary
replication:SyncSource peer-disk:Inconsistent done:0.02
drbd9-04 connection:Connecting
drbd9-05 connection:Connecting
11109 Feb 17 16:09:56 drbd9-01 kernel: drbd r0/0 drbd1 drbd9-02: Resync
done (total 122 sec; paused 0 sec; 40968 K/sec)
11110 Feb 17 16:09:56 drbd9-01 kernel: drbd r0/0 drbd1 drbd9-02: pdsk(
Inconsistent -> UpToDate ) repl( SyncSource -> Established )
11111 Feb 17 16:09:57 drbd9-01 kernel: drbd r0/0 drbd1 drbd9-03: Resync
done (total 123 sec; paused 0 sec; 40636 K/sec)
11112 Feb 17 16:09:57 drbd9-01 kernel: drbd r0/0 drbd1 drbd9-03: pdsk(
Inconsistent -> UpToDate ) repl( SyncSource -> Established )
11113 Feb 17 16:10:00 drbd9-01 dbus-daemon: dbus[928]: [system]
Activating service name='org.freedesktop.PackageKit' (using servicehelper
)
2) Node2
[root at drbd9-02 ~]# drbdadm status r0
r0 role:Secondary
disk:UpToDate
drbd9-01 role:Primary
peer-disk:UpToDate
drbd9-03 role:Secondary
peer-disk:UpToDate
drbd9-04 connection:Connecting
drbd9-05 connection:Connecting
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-01: updated UUIDs
B6CAADFB7D215BC6:0000000000000000:0000000000000000:0000000000000000
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1: disk( Inconsistent ->
UpToDate )
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-05: pdsk( DUnknown
-> Outdated ) resync-susp( connection dependency -> no )
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-04: pdsk( DUnknown
-> Outdated ) resync-susp( connection dependency -> no )
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-01: repl( SyncTarget
-> Established )
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-01: helper command:
/sbin/drbdadm after-resync-target
Feb 17 16:09:56 drbd9-02 drbdadm[4714]: Don't know which config file
belongs to resource r0, trying default ones...
Feb 17 16:09:56 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-01: helper command:
/sbin/drbdadm after-resync-target exit code 0 (0x0)
Feb 17 16:09:57 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-03: updated UUIDs
B6CAADFB7D215BC6:0000000000000000:0000000000000000:0000000000000000
Feb 17 16:09:57 drbd9-02 kernel: drbd r0/0 drbd1 drbd9-03: pdsk(
Inconsistent -> UpToDate ) resync-susp( peer -> no )
3) Node3
[root at drbd9-03 etc]# drbdadm status r0
r0 role:Secondary
disk:UpToDate
drbd9-01 role:Primary
peer-disk:UpToDate
drbd9-02 role:Secondary
peer-disk:Outdated <-----------------------------------------
Why??????????
drbd9-04 connection:Connecting
drbd9-05 connection:Connecting
Feb 17 16:09:56 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-02: pdsk(
Inconsistent -> UpToDate )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-01: Resync done
(total 123 sec; paused 0 sec; 40636 K/sec)
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-01: updated UUIDs
B6CAADFB7D215BC6:0000000000000000:0000000000000000:0000000000000000
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1: disk( Inconsistent ->
UpToDate )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-05: pdsk( DUnknown
-> Outdated ) resync-susp( connection dependency -> no )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-04: pdsk( DUnknown
-> Outdated ) resync-susp( connection dependency -> no )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-02: pdsk( UpToDate
-> Outdated ) resync-susp( connection dependency -> no )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-01: repl( SyncTarget
-> Established )
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-01: helper command:
/sbin/drbdadm after-resync-target
Feb 17 16:09:57 drbd9-03 kernel: drbd r0/0 drbd1 drbd9-01: helper command:
/sbin/drbdadm after-resync-target exit code 0 (0x0)
5. Question
- If we do disconnect and connect again on the Node3, the status becomes
UpToDate.
[root at drbd9-03 drbd-utils-8.9.6]# drbdadm status r0
r0 role:Secondary
disk:UpToDate
drbd9-01 role:Primary
peer-disk:UpToDate
drbd9-02 role:Secondary
peer-disk:UpToDate <--------------------------- Changed to Normal!!!!
drbd9-04 connection:Connecting
drbd9-05 connection:Connecting
- Why did the node3 become Outdated after resync despite of normal?
Thanks.
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