[jira] [Created] (HBASE-22386) HBOSS: Limit depth that listing locks check for other locks

["Sean Mackrory (JIRA)" <ji...@apache.org>]

Sean Mackrory created HBASE-22386:
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             Summary: HBOSS: Limit depth that listing locks check for other locks
                 Key: HBASE-22386
                 URL: https://issues.apache.org/jira/browse/HBASE-22386
             Project: HBase
          Issue Type: Bug
            Reporter: Sean Mackrory
            Assignee: Sean Mackrory


treeWriteLock will check all the way up and down the tree for locks. This is more aggressive than it needs to be, and integration testing has shown that there's significant contention when listing tables, and this is one of numerous operations that doesn't need to recursively lock the whole subtree. There's actually a number of operations that only need to lock up or down 1 level only, so let's start with listing: non-recursive listings don't need to care about what's going on more than 1 level below them.



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