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  • 1.  RDQM HA MQ

    Posted 11/15/23 10:45 AM

    Hi,

    after a linux-patch and MQ-fixpack upgrade to version 9.3.0.11 we cannot get the status of RDQM-quemanager !

    rdqmstatus -m QM_ACC
    AMQ3785E: The replicated data subsystem has not been started.
    AMQ3785E: The replicated data subsystem has not been started

    On the other node  the status is as follows:

    [mqm@accimq07 ~]$  rdqmstatus -m QM_ACC
    Node:                                   accimq07.corp.accsligro.nl
    Queue manager status:                   Running
    CPU:                                    2.74%
    Memory:                                 6470MB
    Queue manager file system:              398MB used, 14.8GB allocated [3%]
    HA role:                                Primary
    HA status:                              Mixed
    HA control:                             Enabled
    HA current location:                    This node
    HA preferred location:                  accimq05.corp.accsligro.nl
    HA blocked location:                    accimq06.corp.accsligro.nl
    HA floating IP interface:               ens192
    HA floating IP address:                 10.24.4.78

    Node:                                   accimq05.corp.accsligro.nl
    HA status:                              Remote unavailable
    HA out of sync data:                    61588KB
    HA last in sync:                        2023-11-15 13:33:17

    Node:                                   accimq06.corp.accsligro.nl
    HA status:                              Normal

    The (primary) node accimq05.corp.accsligro.nl is unavailable !!

    What went wrong ? How to solve the problem on node accimq05.corp.accsligro.nl ?

    Kindly regards,

    Peter



    ------------------------------
    Peter Roemer
    ------------------------------


  • 2.  RE: RDQM HA MQ

    Posted 11/15/23 11:20 AM

    Hi Peter,

    I suspect that you have updated the Linux kernel and you now need to install a newer DRBD kernel module that is compatible with the new kernel.

    If you use the rdqmstatus command without any parameters it will return output, such as:

    Node:                                   myhost.mydomain
    OS kernel version:                      5.14.0-362.8.1
    DRBD OS kernel version:                 5.14.0-362.8.1
    DRBD version:                           9.1.16
    DRBD kernel module status:              Loaded

    On your system the OS kernel version and the DRBD OS kernel version probably do not match, and the DRBD kernel module status is reported as something other than "Loaded".

    See Problems after upgrading RDQM at https://www.ibm.com/docs/en/ibm-mq/9.3?topic=problems-after-upgrading-rdqm

    For information about how to obtain a compatible DRBD kernel module, see IBM MQ Replicated Data Queue Manager Kernel Modules at https://www.ibm.com/support/pages/ibm-mq-replicated-data-queue-manager-kernel-modules

    Kind regards,

    Jamie



    ------------------------------
    Jamie Squibb
    IBM MQ Development
    ------------------------------



  • 3.  RE: RDQM HA MQ

    Posted 11/15/23 11:30 AM

    Hi Jamie,

    the command rdqmstatus without any parameters ! 

    mqm]$ rdqmstatus
    AMQ3785E: The replicated data subsystem has not been started.
    AMQ3785E: The replicated data subsystem has not been started.



    ------------------------------
    Peter Roemer
    ------------------------------

    Original Message


  • 4.  RE: RDQM HA MQ

    Posted 11/15/23 11:36 AM

    on the node accimq07 the command comes with:

    rdqmstatus
    Node:                                   accimq07.corp.accsligro.nl
    OS kernel version:                      4.18.0-193.28.1
    DRBD OS kernel version:                 4.18.0-193
    DRBD version:                           9.1.12
    DRBD kernel module status:              Loaded

    Queue manager name:                     QM_ACC
    Queue manager status:                   Running
    HA status:                              Mixed
    HA current location:                    This node
    HA preferred location:                  accimq05.corp.accsligro.nl
    HA blocked location:                    accimq06.corp.accsligro.nl



    ------------------------------
    Peter Roemer
    ------------------------------

    Original Message


  • 5.  RE: RDQM HA MQ

    Posted 11/15/23 12:26 PM

    Hi Jamie,

    mqm]$ systemctl status pacemaker
    Unit pacemaker.service could not be found.

    Kindly regards,

    Peter



    ------------------------------
    Peter Roemer
    ------------------------------

    Original Message


  • 6.  RE: RDQM HA MQ

    Posted 11/15/23 11:49 AM

    Hi Peter,

    OK, this suggests that either Pacemaker or the RDQM service is not running.

    You can check the status of Pacemaker by using systemctl status pacemaker.

    If you open a support case then we can investigate the problem and help you to resolve it.

    Kind regards,

    Jamie



    ------------------------------
    Jamie Squibb
    IBM MQ Development
    ------------------------------

    Original Message


  • 7.  RE: RDQM HA MQ

    Posted 11/15/23 12:36 PM

    I opened a cast:

    Case created - TS014740298

    15 November 2023, 11:34 AM CST  -  Severity 2

    RDQM HA MQ



    ------------------------------
    Peter Roemer
    ------------------------------

    Original Message


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