Splunk® Enterprise

Managing Indexers and Clusters of Indexers

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Splunk Enterprise version 7.0 is no longer supported as of October 23, 2019. See the Splunk Software Support Policy for details. For information about upgrading to a supported version, see How to upgrade Splunk Enterprise.
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Determine which indexes.conf changes require restart

Some changes to indexes.conf require that you restart the indexer for the changes to take effect:

  • Changing any of these attributes: rawChunkSizeBytes, minRawFileSyncSecs, syncMeta, maxConcurrentOptimizes, coldToFrozenDir, coldtoFrozenScript, memPoolMB
  • Changing any of these attributes for existing indexes: repFactor, homePath, coldPath, thawedPath, bloomHomePath, summaryHomePath, tstatsHomePath, remotePath, coldPath.maxDataSizeMB, datatype
  • Adding or removing a volume
  • Enabling or disabling an index that contains data
  • Removing an index

You do not need to restart the indexer if you only make these changes:

  • Adding new index stanzas.
  • Changing any attributes not listed as requiring restart
  • Enabling or disabling an index that contains no data

The configuration changes that cause the peer nodes in an indexer cluster to undergo a rolling restart are a superset of those listed here. See Restart or reload after configuration bundle changes?

Note: For information on other configuration changes, outside of indexes.conf, that require a restart, see When to restart Splunk Enterprise after a configuration file change in the Admin Manual.

Last modified on 21 June, 2021
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This documentation applies to the following versions of Splunk® Enterprise: 6.5.0, 6.5.1, 6.5.2, 6.5.3, 6.5.4, 6.5.5, 6.5.6, 6.5.7, 6.5.8, 6.5.9, 6.5.10, 6.6.0, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.6.6, 6.6.7, 6.6.8, 6.6.9, 6.6.10, 6.6.11, 6.6.12, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.7, 7.0.8, 7.0.9, 7.0.10, 7.0.11, 7.0.13, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6, 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6, 7.2.7, 7.2.8, 7.2.9, 7.2.10, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5, 7.3.6, 7.3.7, 7.3.8, 7.3.9, 8.0.0, 8.0.1, 8.0.2, 8.0.3, 8.0.4, 8.0.5, 8.0.6, 8.0.7, 8.0.8, 8.0.9, 8.1.0, 8.1.1, 8.1.2, 8.1.3, 8.1.4, 8.1.5, 8.2.0, 8.2.1

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