[jira] [Created] (SOLR-9223) Unable to create a shard leader if only a recovering node has the latest updates

["Noble Paul (JIRA)" <ji...@apache.org>]

Noble Paul created SOLR-9223:
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             Summary: Unable to create a shard leader if only a recovering node has the latest updates
                 Key: SOLR-9223
                 URL: https://issues.apache.org/jira/browse/SOLR-9223
             Project: Solr
          Issue Type: Bug
            Reporter: Noble Paul
            Assignee: Noble Paul


We ended up with a leaderless shard in the following scenario

1) Add a new replica to a shard
2) while the node is still recovering do indexing
3) Delete the replica that is the leader of the shard
It's likely that the latest update(s) is only sent to the node that is recovering. Other nodes try to become the leader but they can't because they don't have the latest updates. The node that has the latest updates is trying to recover. And we end up in a situation where the shard does not have a leader.

This problem is introduced since SOLR-3813 because now we consult even non-ACTIVE nodes also for recovery

How do we resolve this problem?  Any suggestions [~markrmiller@gmail.com] 



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