IPC client bug may cause rpc call hang
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Key: HADOOP-6498
URL: https://issues.apache.org/jira/browse/HADOOP-6498
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 0.20.1, 0.20.0, 0.19.2, 0.19.1, 0.19.0, 0.18.3
Reporter: Ruyue Ma
Assignee: Ruyue Ma
Priority: Critical
Fix For: 0.21.0
I can reproduce some rpc call hang bug when connection thread of ipc client
receives response for outstanding call.
The stacks when hang occurs (TaskTracker):
Waiting on org.apache.hadoop.ipc.client$c...@1c3cbb4b
Stack:
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:485)
org.apache.hadoop.ipc.Client.call(Client.java:691)
org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216)
org.apache.hadoop.mapred.$Proxy4.heartbeat(Unknown Source)
org.apache.hadoop.mapred.TaskTracker.transmitHeartBeat(TaskTracker.java:1250)
org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:1082)
org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:1785)
org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:2796)
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