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Posted to dev@hbase.apache.org by "Duo Zhang (JIRA)" <ji...@apache.org> on 2016/07/01 09:54:11 UTC
[jira] [Created] (HBASE-16165) Decrease RpcServer.callQueueSize
before writeResponse causes OOM
Duo Zhang created HBASE-16165:
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Summary: Decrease RpcServer.callQueueSize before writeResponse causes OOM
Key: HBASE-16165
URL: https://issues.apache.org/jira/browse/HBASE-16165
Project: HBase
Issue Type: Bug
Reporter: Duo Zhang
In RpcServer, we use {{callQueueSizeInBytes}} to avoid queuing too many calls which causes OOM. But in {{CallRunner.run}}, we decrease it before send the response back. And even after calling {{sendResponseIfReady}}, the call object could stay in our heap for a long time if we can not write out the response(That's why we need a Responder thread...). This makes it possible that the actual size of all call object in heap is larger than {{maxQueueSizeInBytes}} and causes OOM.
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