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I have a deployment server, clustered Indexers, clustered search heads, heavy forwarders, & universal forwarders. All are running Splunk 6.2.7 and would like to upgrade to Splunk 6.3.2
I believe the compatibility sequence should be:
Cluster Master > Search Heads > Indexers > Heavy forwarders > Universal Forwarders and deployment server should be upgraded along with search heads or before cluster master.
I can't upgrade all servers on the same day. Please suggest compatibility of Splunk instances.
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You can break down your upgrade in to phases.
First should be your Cluster Master Node.
Second, should be Search Tier. Upgrade the instances individually, or if you are on a SHC, you need to upgrade the whole cluster.
Next would be the indexing tier:
Put your CM in to Maintenance Mode, upgrade it, restart, put back into maintenance mode. Upgrade all your indexers, once upgraded, take the CM out of Maintenance mode. This is a good check point to make sure your Cluster(s) rebalance and are reporting in correctly.
Your DS / HF / UF can be upgraded as time permits, they dont have specific version requirements. (Although check the DS, if you're using some legacy configuration settings, they may be deprecated.)
Make note, there are some version requirements between the Search and Indexing tiers to be cautious about..
Upgrading : http://docs.splunk.com/Documentation/Splunk/6.3.2/Installation/HowtoupgradeSplunk
Upgrading Version Notes : http://docs.splunk.com/Documentation/Splunk/6.3.2/Installation/Aboutupgradingto6.3READTHISFIRST
Version Compatibility : http://docs.splunk.com/Documentation/Splunk/6.3.2/Indexer/Systemrequirements#Splunk_Enterprise_versi...
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You can break down your upgrade in to phases.
First should be your Cluster Master Node.
Second, should be Search Tier. Upgrade the instances individually, or if you are on a SHC, you need to upgrade the whole cluster.
Next would be the indexing tier:
Put your CM in to Maintenance Mode, upgrade it, restart, put back into maintenance mode. Upgrade all your indexers, once upgraded, take the CM out of Maintenance mode. This is a good check point to make sure your Cluster(s) rebalance and are reporting in correctly.
Your DS / HF / UF can be upgraded as time permits, they dont have specific version requirements. (Although check the DS, if you're using some legacy configuration settings, they may be deprecated.)
Make note, there are some version requirements between the Search and Indexing tiers to be cautious about..
Upgrading : http://docs.splunk.com/Documentation/Splunk/6.3.2/Installation/HowtoupgradeSplunk
Upgrading Version Notes : http://docs.splunk.com/Documentation/Splunk/6.3.2/Installation/Aboutupgradingto6.3READTHISFIRST
Version Compatibility : http://docs.splunk.com/Documentation/Splunk/6.3.2/Indexer/Systemrequirements#Splunk_Enterprise_versi...
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From: http://docs.splunk.com/Documentation/Splunk/6.3.2/Indexer/Systemrequirements#Splunk_Enterprise_versi...
Cluster master should be upgraded before search heads, then indexers.
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^ this!
Very bad things happen if you do search heads first.
We had a situation when another admins search head got a day one upgrade without us knowing.
We suddenly had indexers start going offline due to incompatibilities. It was the first time we had search head causing indexer outages.
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Thanks for the call out, updated.
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