Daryn Sharp created HADOOP-10233: ------------------------------------ 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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)