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Posted to dev@lucene.apache.org by "Erick Erickson (JIRA)" <ji...@apache.org> on 2015/12/16 18:02:46 UTC
[jira] [Commented] (SOLR-8423) DELETESHARD should cleanup the
instance and data directory, like DELETEREPLICA
[ https://issues.apache.org/jira/browse/SOLR-8423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15060299#comment-15060299 ]
Erick Erickson commented on SOLR-8423:
--------------------------------------
I don't think this breaks back-compat 'cause I don't see any promises in the docs ;) But I vaguely recall that this was to clean up stale cluster states without having to directly edit the ZK node, so maybe nobody thought about it?
I might advocate an option to keep at least the data directory just on general principles here though. I'm thinking of the case where the user is explicitly controlling routing, say time-series data. Does it make sense to delete/create shards to hide/show some time-interval? I have to admit this is a _theoretical_ use-case, haven't seen anyone actually ask for it so feel free to ignore...
> DELETESHARD should cleanup the instance and data directory, like DELETEREPLICA
> ------------------------------------------------------------------------------
>
> Key: SOLR-8423
> URL: https://issues.apache.org/jira/browse/SOLR-8423
> Project: Solr
> Issue Type: Bug
> Reporter: Anshum Gupta
>
> DELETESHARD only cleans up the index directory and not the instance/data directory. DELETEREPLICA on the other hand cleans up the data and instance directory.
> DELETESHARD should clean up the instance and data directory, so that we don't leak disk space on executing the command.
> If we think this would break back-compat, though I don't see why this should not clean up the instance dir, we should at least provide an option to clean up everything and make it default in 6.0.
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