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https://issues.apache.org/jira/browse/SOLR-14202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17023785#comment-17023785
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Jörn Franke commented on SOLR-14202:
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ok, thanks for the feedabck and details. I will check the attached program.
> Old segments are not deleted after commit
> -----------------------------------------
>
> Key: SOLR-14202
> URL: https://issues.apache.org/jira/browse/SOLR-14202
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 8.4
> Reporter: Jörn Franke
> Priority: Major
> Attachments: eoe.zip
>
>
> The data directory of a collection is growing and growing. It seems that old
> segments are not deleted. They are only deleting during start of Solr.
> How to reproduce. Have any collection (e.g. the example collection) and start
> indexing documents. Even during the indexing the data directory is growing
> significantly - much more than expected (several magnitudes). if certain
> documents are updated (without significantly increasing the amount of data)
> the index data directory grows again several magnitudes. Even for small
> collections the needed space explodes.
> This reduces significantly if Solr is stopped and then started. During
> startup (not shutdown) Solr purges all those segments if not needed (*
> sometimes some but not a significant amount is deleted during shutdown). This
> is of course not a good workaround for normal operations.
> It does not seem to have a affect on queries (their performance do not seem
> to change).
> The configs have not changed before the upgrade and after (e.g. from Solr 8.2
> to 8.3 to 8.4, not cross major versions), so I assume it could be related to
> Solr 8.4. It may have been also in Solr 8.3 (not sure), but not in 8.2.
>
> IndexConfig is pretty much default: Lock type: native, autoCommit: 15000,
> openSearcher=false, autoSoftCommit -1 (reproducible with autoCommit 5000).
> Nevertheless, it did not happen in previous versions of Solr and the config
> did not change.
>
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