Shawn Heisey created SOLR-9398:
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Summary: deleteByQuery blocks during an optimize
Key: SOLR-9398
URL: https://issues.apache.org/jira/browse/SOLR-9398
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 5.3.2
Reporter: Shawn Heisey
When merging is happening, particularly if it's an optimize, a deleteByQuery
update request will block until the merge is complete. Any other change to the
index is also blocked by the delete.
If a query with fl set to the uniqueKey is made, then the list of IDs received
from that query is submitted as a delete by ID, then there's no problem. This
suggests that it is probably possible to fix this.
I know for sure that this affects 5.3.2, and I think it likely affects all 6.x
versions too. I don't have any large indexes on anything newer than 5.3.2.
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