Daryn Sharp created HADOOP-10233:
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Summary: RPC lacks output flow control
Key: HADOOP-10233
URL: https://issues.apache.org/jira/browse/HADOOP-10233
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
Priority: Critical
The RPC layer has input flow control via the callq, however it lacks any output
flow control. A handler will try to directly send the response. If the full
response is not sent then it is queued for the background responder thread.
The RPC layer may end up queuing so many buffers that it "locks" up in GC.
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