Status

Current state: "Under DiscussionFinished"

Discussion thread: here

JIRA: here (<- link to https://issues.apache.org/jira/browse/SOLR-XXXX)

Released: NA

Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast). Confluence supports inline comments that can also be used.

Released: no

Motivation

Solr's current backup/restore functionality has several frustrating limitations.

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Solr can support restoring to existing collections by making use of the "read only" mode that was introduced in SOLR-1372113271.  The restore API can put the target collection in read-only mode, restore a backup for each shard, and then toggle off "read only" mode.

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