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Active IQ Unified Manager running slow or hanging on virtual machines

Last Updated:


Applies to

  • All Virtual Machines
    • OnCommand Unified Manager Core Package 5.X ( DFM )
    • OnCommand Unified Manager 7.x ( UM )
    • OnCommand Unified Manager 9.4 ( UM )
    • OnCommand Unified Manager 9.5 ( UM )
    • Active IQ Unified Manager 9.6+ ( AQIUM )
    • Microsoft Windows Server 2012
    • Microsoft Windows Server 2016
    • Microsoft Windows Server 2019
    • Red Hat 6.x
    • Red Hat 7.x
    • CentOS 7.x
    • VMware Virtual Machine OVA


Observational Issues on Virtual Machine:

  • Unified Manager application is running slow.
  • Unified Manager application CPU and/or memory utilization are extremely high. Swap/pagefile is in use.
  • Unified Manager application experiences inconsistent behavior:
    • Services hanging
    • Services crashing
    • Services restarting
    • Occasional issues with alert notifications.
    • Performance graphs fail to load in the web interface.
    • Inventory / performance acquisition polls may not complete within their normal 15 minute / 5 minute cycles.
    • Other abnormal (unexplainable) inconsistent behavior when running in a virtual environment.

Observational Issues on the VMware ESXi Server:

Any of the below memory management processes can (and usually do) have adverse effects to databases. Even if you are not experiencing ballooning or swapping, TPS or compression is likely to occur in the pool of memory that the application has available to it.

  • Memory Ballooning
  • Swapping
  • Transparent page sharing (disabled by default in ESXi 5.5 and above, but on by default in previous versions)
  • Compression

Observational Issues in Unified Manager Logs:

  • MySQL error log: 

2020-04-12T04:02:10.036849Z 205 [Note] Aborted connection 205 to db: 'unconnected' user: 'jboss' host: 'localhost' (Failed on my_net_write())
2020-04-12T08:50:42.808598Z 450 [Note] Got timeout reading communication packets


2021-04-17T12:34:06.xxxxxxx xxxxxx [Note] Unknown error 1158
2021-04-17T12:34:14.xxxxxxx xxxxxx [Note] Unknown error 1156
2021-04-17T12:34:14.xxxxxxx xxxxxx [Note] Unknown error 1156
2021-04-17T12:34:36.xxxxxxx xxxxxx [Note] Unknown error 1156
2021-04-17T12:34:36.xxxxxxx xxxxxx [Note] Unknown error 1043
2021-04-17T12:34:55.xxxxxxx xxxxxx [Note] Unknown error 1158


2021-08-05T02:56:31.437637Z 12382 [ERROR] [MY-010934] [Server] Out of memory (Needed 2391524 bytes) 2021-08-05T02:56:31.440225Z 12382 [ERROR] [MY-010934] [Server] Out of memory; check if mysqld or some other process uses all available memory; if not, you may have to use 'ulimit' to allow mysqld to use more memory or you can add more swap space"

  • The server_mega.log:

2020-04-12 06:11:01,221 ERROR [default task-4] c.n.s.s.a.OriginatorUpdateServlet ( - Transaction rolled back: javax.ejb.EJBTransactionRolledbackException: Transaction rolled back


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