Rushabh Shah created HBASE-24956:
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Summary: ConnectionManager#userRegionLock waits for lock
indefinitely.
Key: HBASE-24956
URL: https://issues.apache.org/jira/browse/HBASE-24956
Project: HBase
Issue Type: Bug
Components: Client
Affects Versions: 1.3.2
Reporter: Rushabh Shah
Assignee: Rushabh Shah
One of our customers experienced high latencies (in order of 3-4 minutes) for
point lookup query (We use phoenix on top of hbase).
We have different threads sharing the same hconnection. Looks like multiple
threads are stuck at the same place.
[https://github.com/apache/hbase/blob/branch-1.3/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionManager.java#L1282]
We have set the following configuration parameters to ensure query fails with a
reasonable SLAs:
1. hbase.client.meta.operation.timeout
2. hbase.client.operation.timeout
3. hbase.client.scanner.timeout.period
But since userRegionLock can wait for lock indefinitely the call will not fail
within SLA.
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