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After upgrading my search head and indexer to Splunk 6.3.1, why am I seeing a decrease in performance and increase in CPU and memory usage?
Hello, all.
I upgraded my single search head and indexer to version 6.3.1. I am aware of the CPU resource improvements with this release, however, I've noticed a slight decrease in performance (UI responsiveness) and increase CPU and Memory usage overall. Should I just assume this is the new norm and add resources to hopefully improve system response? I am running Splunk on virtual machines and have applied the best practices.
Thanks,
James
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This message means your search processes are taking >1s to read initial configuration information from disk. What does the I/O subsystem underneath $SPLUNK_HOME/etc look like in your environment? If $SPLUNK_HOME/etc is networked storage, for example, there might be disk/network performance issues affecting search startup time.
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I'm also receiving the alert below after upgrading:
Configuration initialization for Drive:\Program Files\Splunk\etc took longer than expected (1289ms) when dispatching a search (search ID: xxx__xxx__search__search5_1447719591.31937); this typically reflects underlying storage performance issues
Is this really a disk I/O issue?
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What OS are you running on? I have seem similar issues and log messages on my Windows search head after upgrading to 6.3 and 6.3.1.
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I'm running on Windows Server 2008 R2 x64 Enterprise SP1.
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The majority of the benefits are on Indexers; did you upgrade them or just the Search Head?
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Yes, I upgraded the search head first, then the indexer.
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