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From fab wol <>
Subject Re: NullPointerException on Sample Tables / CDH 4.4
Date Fri, 11 Oct 2013 08:35:04 GMT
somehow after three days of searching, i just deployed client configuration
for all hive roles again, and the error seems to be gone. lets see what the
future brings.


2013/10/11 fab wol <>

> hey everyone,
> I've got supplied with a decent ten node CDH 4.4 cluster, only 7 days old,
> and someone tried some HBase stuff on it. I wanted to apply my (on another
> cluster working) workflow's to that cluster (consisting of HiveQL Scripts
> and Oozie Workflows) but unfortunately i the following issue: When trying
> to drop some select statement on any table (sample tables or tables
> regarding my workflow) i get the following error stack (from beeswax and
> from Hive CLI):
> org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
> 	at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.sortLocatedBlocks(
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(
> 	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(
> 	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(
> 	at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$
> 	at org.apache.hadoop.ipc.RPC$
> 	at org.apache.hadoop.ipc.Server$Handler$
> 	at org.apache.hadoop.ipc.Server$Handler$
> 	at Method)
> 	at
> 	at
> 	at org.apache.hadoop.ipc.Server$
> I tried already setting up a new table (blank) and inserting some dummy data, but the
error keeps the same. Some connection between HDFS and Hive regarind block information seems
to be broken. Any idea how to fix this or where the configuration is to get rid of this or
what other things we should check?
> Cheers
> Fabian

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