Details
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New Feature
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Status: Closed (View Workflow)
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Minor
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Resolution: Won't Do
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1.2.5
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None
Description
We found out that setting the hostname on a running UM1 node causes the cluster to become DEGRADED and the mysqld process to go in MAN_OFFLINE.
Despite the status reported, however, the cluster works just fine.
How to reproduce:
mcsadmin> getsysteminfo
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getsysteminfo Fri Nov 22 14:30:39 2019
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System columnstore-1
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System and Module statuses
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Component Status Last Status Change
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------------ -------------------------- ------------------------
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System ACTIVE Fri Nov 22 14:29:46 2019
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Module pm1 ACTIVE Fri Nov 22 14:29:43 2019
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MariaDB ColumnStore Process statuses
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Process Module Status Last Status Change Process ID
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------------------ ------ --------------- ------------------------ ----------
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ProcessMonitor pm1 ACTIVE Fri Nov 22 14:28:21 2019 21862
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ProcessManager pm1 ACTIVE Fri Nov 22 14:28:27 2019 21956
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DBRMControllerNode pm1 ACTIVE Fri Nov 22 14:29:22 2019 23529
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ServerMonitor pm1 ACTIVE Fri Nov 22 14:29:24 2019 23590
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DBRMWorkerNode pm1 ACTIVE Fri Nov 22 14:29:24 2019 23611
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PrimProc pm1 ACTIVE Fri Nov 22 14:29:28 2019 23682
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ExeMgr pm1 ACTIVE Fri Nov 22 14:29:32 2019 23723
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WriteEngineServer pm1 ACTIVE Fri Nov 22 14:29:36 2019 23814
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DDLProc pm1 ACTIVE Fri Nov 22 14:29:40 2019 23884
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DMLProc pm1 ACTIVE Fri Nov 22 14:29:44 2019 23952
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mysqld pm1 ACTIVE Fri Nov 22 14:29:22 2019 23419
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Active Alarm Counts: Critical = 0, Major = 0, Minor = 0, Warning = 0, Info = 0
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mcsadmin> exit
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exit Fri Nov 22 14:30:55 2019
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Exiting the MariaDB ColumnStore Admin Console
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[root@columnstore ~]# hostnamectl set-hostname testbox
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[root@columnstore ~]# hostname
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testbox
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[root@columnstore ~]# mcsadmin
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MariaDB ColumnStore Admin Console
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enter 'help' for list of commands
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enter 'exit' to exit the MariaDB ColumnStore Command Console
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use up/down arrows to recall commands
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Active Alarm Counts: Critical = 0, Major = 0, Minor = 0, Warning = 0, Info = 0
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Critical Active Alarms:
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mcsadmin> getsysteminfo
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getsysteminfo Fri Nov 22 14:31:31 2019
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System columnstore-1
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System and Module statuses
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Component Status Last Status Change
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------------ -------------------------- ------------------------
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System ACTIVE Fri Nov 22 14:29:46 2019
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Module pm1 DEGRADED Fri Nov 22 14:31:18 2019
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MariaDB ColumnStore Process statuses
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Process Module Status Last Status Change Process ID
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------------------ ------ --------------- ------------------------ ----------
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ProcessMonitor pm1 ACTIVE Fri Nov 22 14:28:21 2019 21862
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ProcessManager pm1 ACTIVE Fri Nov 22 14:28:27 2019 21956
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DBRMControllerNode pm1 ACTIVE Fri Nov 22 14:29:22 2019 23529
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ServerMonitor pm1 ACTIVE Fri Nov 22 14:29:24 2019 23590
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DBRMWorkerNode pm1 ACTIVE Fri Nov 22 14:29:24 2019 23611
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PrimProc pm1 ACTIVE Fri Nov 22 14:29:28 2019 23682
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ExeMgr pm1 ACTIVE Fri Nov 22 14:29:32 2019 23723
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WriteEngineServer pm1 ACTIVE Fri Nov 22 14:29:36 2019 23814
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DDLProc pm1 ACTIVE Fri Nov 22 14:29:40 2019 23884
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DMLProc pm1 ACTIVE Fri Nov 22 14:29:44 2019 23952
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mysqld pm1 MAN_OFFLINE Fri Nov 22 14:31:18 2019
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Active Alarm Counts: Critical = 0, Major = 0, Minor = 0, Warning = 0, Info = 0
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mcsadmin>
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