USM reports an "unknown error has occurred" with UMP running on Rhel

Article Id: 4577

Status: Published

Updated On: 14-02-2018 08:19

Legacy Id: TEC1885238

Products:

CA Unified Infrastructure Management On-Premise (Nimsoft / UIM) , NIMSOFT PROBES

Issue/Introduction:

The customer did a fresh install of UIM and UMP on Rhel 6.5 servers, and without any load on the system the USM would continuously report the same error message, making the portlet unusable:

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An unknown error has occurred. Refreshing your browser may resolve the issue.

Details:

com.firehunter.ump.exceptions.DataFactoryException : null

Info:

Method: getAlarms(Long: 1470407413000, Long: 0)

Method: getAlarms(Long: 1470407413000, Long: 0, Boolean: true)

Method: getAlarmsFromDb(Long: 1470407413000, Long: 0, Boolean: true)

Method: getAlarmFiltersForAcl(String: Superuser)

Stack Trace:

(80) Session error, Unable to open a client session for <hubip>:48000: Connection timed out

Caused by: java.net.ConnectException: Connection timed out

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Newer versions of the USM portlet did not resolve the issue, and the USM tracing enabled on the portlet did not give any useful information about the problem.

Cause:

This was caused by a known issue with Linux 3.10.0-229.el7.x86_64.

Environment:

UIM and UMP 8.4 running on Rhel 6.5

Resolution:

To ultimately resolve the issue, the customer had to upgrade to kernel version Linux 3.10.0-327.36.3.el7.x86_64. Once this was done the connection timeout errors were resolved without any further intervention on the application side.