periodic ConcurrentModificationException in IPC Server
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Key: HADOOP-3141
URL: https://issues.apache.org/jira/browse/HADOOP-3141
Project: Hadoop Core
Issue Type: Bug
Components: ipc
Affects Versions: 0.16.1
Reporter: Nigel Daley
Seeing this exception in the Namenode log (429 of them yesterday alone)
2008-03-30 00:00:32,332 WARN org.apache.hadoop.ipc.Server: Exception in
Responder java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
at java.util.HashMap$KeyIterator.next(HashMap.java:827)
at
java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
at org.apache.hadoop.ipc.Server$Responder.run(Server.java:475)
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