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From "Vrushali C (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5014) Ensure non-metric values are returned as is for flow run table from the coprocessor
Date Fri, 29 Apr 2016 07:34:12 GMT
Vrushali C created YARN-5014:
--------------------------------

             Summary: Ensure non-metric values are returned as is for flow run table from
the coprocessor
                 Key: YARN-5014
                 URL: https://issues.apache.org/jira/browse/YARN-5014
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Vrushali C
            Assignee: Vrushali C



Presently the FlowScanner class presumes existence of NumericValueConverter in it's emitCells
function. This causes an exception when we try to retrieve non-numeric values from this table.


Exception is seen as:
{code}
java.lang.ClassCastException: org.apache.hadoop.yarn.server.timelineservice.storage.common.GenericConverter
cannot be cast to org.apache.hadoop.yarn.server.timelineservice.storage.common.NumericValueConverter
        at org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowScanner.nextInternal(FlowScanner.java:246)
        at org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowScanner.nextRaw(FlowScanner.java:125)
        at org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowScanner.nextRaw(FlowScanner.java:119)
        at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2117)
        at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:31443)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
        at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
        at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
{code}





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