Archana T created HDFS-9478:
-------------------------------
Summary: Reason for failing ipc.FairCallQueue contruction should
be thrown
Key: HDFS-9478
URL: https://issues.apache.org/jira/browse/HDFS-9478
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Archana T
Assignee: Ajith S
Priority: Minor
When FairCallQueue Construction fails, NN fails to start throwing
RunTimeException without throwing any reason on why it fails.
2015-11-30 17:45:26,661 INFO org.apache.hadoop.ipc.FairCallQueue: FairCallQueue
is in use with 4 queues.
2015-11-30 17:45:26,665 DEBUG org.apache.hadoop.metrics2.util.MBeans:
Registered Hadoop:service=ipc.65110,name=DecayRpcScheduler
2015-11-30 17:45:26,666 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode:
Failed to start namenode.
java.lang.RuntimeException: org.apache.hadoop.ipc.FairCallQueue could not be
constructed.
at
org.apache.hadoop.ipc.CallQueueManager.createCallQueueInstance(CallQueueManager.java:96)
at org.apache.hadoop.ipc.CallQueueManager.<init>(CallQueueManager.java:55)
at org.apache.hadoop.ipc.Server.<init>(Server.java:2241)
at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:942)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:534)
at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:509)
at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:784)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.<init>(NameNodeRpcServer.java:346)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcServer(NameNode.java:750)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:687)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:889)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:872)
Example: reason for above failure could have been --
1. the weights were not equal to the number of queues configured.
2. decay-scheduler.thresholds not in sync with number of queues.
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