Houston Putman created SOLR-17835:
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Summary: Distributed admin commands should be able call other
commands without dead-locking
Key: SOLR-17835
URL: https://issues.apache.org/jira/browse/SOLR-17835
Project: Solr
Issue Type: New Feature
Reporter: Houston Putman
Currently the collections API and other admin APIs do not use the other
distributed admin APIs as a part of their operation. This is likely because
when a super resource (collection) is locked, commands on sub-resources (shard,
replica) are blocked because of the distributed collections API locking.
We should introduce the ability in the (unfortunately) 2 locking abstractions
to mirror locks from the calling API (parent operation), so that another lock
is not created for sub resources. This mirrored lock would then make sure the
lock is acquired, but not create a new lock for the same resource.
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