SRM 4.10 :: Changing the "Performance polling period" value in the Solution Pack UI for VNX/Unity does not change the value in vnxe-realtime-performance.xml

Summary: Changing the "Performance polling period" value in the Solution Pack UI does not change the value in vnxe-realtime-performance.xml. The configuration file has this setting hardcoded for 5 minutes. 300s in the file /opt/APG/Collecting/Stream-Collector/emc-vnx/conf/parsers/vnxe-realtime-performance.xml ...

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Symptoms

Even after increasing the polling interval to 15 minutes or higher, VNX/Unity collecting logs showed real time performance data collection every 5 minutes 

INFO     -- [yyyy-mm-dd hh:37:32 EDT] -- Collecting$CollectingJobHook::preparingJob(): Launching collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname
INFO     -- [yyyy-mm-dd hh:37:35 EDT] -- Collecting$CollectingJobHook::completingJob(): Completed collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname in 2608 msec
INFO     -- [yyyy-mm-dd hh:42:32 EDT] -- Collecting$CollectingJobHook::preparingJob(): Launching collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname
INFO     -- [yyyy-mm-dd hh:42:35 EDT] -- Collecting$CollectingJobHook::completingJob(): Completed collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname in 2816 msec
INFO     -- [yyyy-mm-dd hh:47:32 EDT] -- Collecting$CollectingJobHook::preparingJob(): Launching collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname
INFO     -- [yyyy-mm-dd hh:47:35 EDT] -- Collecting$CollectingJobHook::completingJob(): Completed collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname in 2627 msec
INFO     -- [yyyy-mm-dd hh:52:32 EDT] -- Collecting$CollectingJobHook::preparingJob(): Launching collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname
INFO     -- [yyyy-mm-dd hh:52:35 EDT] -- Collecting$CollectingJobHook::completingJob(): Completed collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname in 2654 msec
INFO     -- [yyyy-mm-dd hh:57:32 EDT] -- Collecting$CollectingJobHook::preparingJob(): Launching collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname
INFO     -- [yyyy-mm-dd hh:57:35 EDT] -- Collecting$CollectingJobHook::completingJob(): Completed collecting configuration VNXUNITY-REALTIME-PERFORMANCE for context UNITY-unityname in 2598 msec

Cause

None

Resolution

This is working as designed.  The real time performance collection interval in SRM is hardcoded to 5 minutes and does not change with the performance polling interval change.  This is due to a VNX/Unity REST API limitation.  The REST API for fetching real-time metrics works with polling interval of maximum 5 minutes. 
Article Properties
Article Number: 000218620
Article Type: Solution
Last Modified: 13 Nov 2023
Version:  2
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