| Author |
Message |
 Topic: RDQM data replication question |
mqdev
Replies: 10
Views: 20149
|
 Forum: IBM MQ Installation/Configuration Support Posted: Wed Jan 08, 2020 7:32 am Subject: Re: RDQM data replication question |
..
..
Possibility 1:
MQPUT() on A under syncpoint will not return rc=0 until data is written to B & C as well ...
The Knowledge Center states that the running instance of the queue manager &qu ... |
| Topic: RDQM data replication question |
mqdev
Replies: 10
Views: 20149
|
Forum: IBM MQ Installation/Configuration Support Posted: Wed Jan 08, 2020 7:28 am Subject: RDQM data replication question |
NPMCLASS(HIGH) only has ANY effect if the QMgr is successfully shutdown in a controlled manner.
..
..
RDQM failover is
1. controlled shutdown on current Active Node
2. startup on one of the ... |
| Topic: RDQM data replication question |
mqdev
Replies: 10
Views: 20149
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jan 06, 2020 7:59 am Subject: RDQM data replication question |
to add a bit more:
Lets say an App is doing MQPUT() under syncpoint to QM on node A. commit has been done and rc=0 (msg has been successfully written to A). The way drbd/RDQM work is - corosync und ... |
| Topic: RDQM data replication question |
mqdev
Replies: 10
Views: 20149
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jan 06, 2020 7:50 am Subject: RDQM data replication question |
thanks for your response Morag.
We have Apps all over the place as regarding the syncpoint and Qs all over the place as regarding the persistence. We have close to 5000 Apps - not all of them unifo ... |
| Topic: RDQM data replication question |
mqdev
Replies: 10
Views: 20149
|
Forum: IBM MQ Installation/Configuration Support Posted: Sun Jan 05, 2020 10:53 am Subject: RDQM data replication question |
Hello All
Have the following questions regarding "data replication" amongst the RDQM nodes:
Lets assume A, B, C are RDQM nodes and A has a QM Active (QM status=Running)
1. After MQPUT ... |
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Thu Jul 18, 2019 4:48 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
Am just curious about the following log entries in Pacemaker log:
Jul 16 10:15:36 host01.xyz.com attrdJul 16 10:15:36 host01.xyz.com attrd
Jul 16 10:15:36 host01.xyz.com attrdJul 16 10:15:36 host ... |
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Thu Jul 18, 2019 4:44 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
Thanks Morag....we already raised a PMR. Not much progress there either, am afraid. Will keep pushing though...
Thanks
-mqdev |
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Tue Jul 16, 2019 8:18 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
Also tried the command ( on host01 ):
crm resource cleanup p_drbd_qm0_test_rdqm
Result: did not work...
|
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Tue Jul 16, 2019 8:13 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
host01 seems to be the problematic node - there are errors in Pacemaker as seen above.
host02 and host03 are reporting valid status for QM0 (Running elsewhere)
host01 is reporting error for QM0 ... |
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Tue Jul 16, 2019 8:11 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
Results from host03:
root@host03 ~
# rdqmstatus
Node: host03.xyz.com
Queue manager name: QM0.TEST.RDQM
Queue manager status: ... |
| Topic: RDQM in "Ended Unexpectedly" status - clueless.. |
mqdev
Replies: 8
Views: 22761
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jul 15, 2019 7:23 am Subject: RDQM in "Ended Unexpectedly" status - clueless.. |
Hello,
mine is a 3 node RDQM which hosts 4 RDQM QMs - QM0/1/2/3.
QM1/2/3 are healthy and in Running on one of the 3 nodes. QM0 however, is in "Ended unexpectedly" status on one of the no ... |
| Topic: procedure to replace a drbd-node in a working drbd-cluster? |
mqdev
Replies: 5
Views: 13551
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jul 15, 2019 7:11 am Subject: procedure to replace a drbd-node in a working drbd-cluster? |
exerk: See the second bullet under "Procedure" ( If the replacement node has a different configuration to the failed node:) - this is what applicable to A/B/D and that is not working!
In ... |
| Topic: procedure to replace a drbd-node in a working drbd-cluster? |
mqdev
Replies: 5
Views: 13551
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jul 15, 2019 5:25 am Subject: THIS does not work... |
Thanks exerk for the response.
We are not able to make the cluster "believe" that one of the node is replaced (A/B/C is now A/B/D). The RDQM commands keep looking for C and the QM is brok ... |
| Topic: procedure to replace a drbd-node in a working drbd-cluster? |
mqdev
Replies: 5
Views: 13551
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Jul 01, 2019 12:57 pm Subject: procedure to replace a drbd-node in a working drbd-cluster? |
Hello,
We recently had a situation wherein one of the drbd nodes in a cluster had to be replaced with a new server - and had to practically reinstall RDQM from scratch on all 3nodes. The prob stateme ... |
| Topic: RDQM - floating IP - how to? |
mqdev
Replies: 27
Views: 47572
|
Forum: IBM MQ Installation/Configuration Support Posted: Tue Jun 11, 2019 7:28 am Subject: RDQM - floating IP - how to? |
The Failed Action is almost certainly the reason why the queue manager RDQM1 will not run on its preferred location.
To see what caused the Failed Action you will need to look at the syslog file fo ... |
