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Posted to mapreduce-dev@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2009/09/08 01:04:57 UTC
[jira] Created: (MAPREDUCE-959) JobConf::setWorkingDirectory
requires that the default FileSystem is reachable
JobConf::setWorkingDirectory requires that the default FileSystem is reachable
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Key: MAPREDUCE-959
URL: https://issues.apache.org/jira/browse/MAPREDUCE-959
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: client, test
Reporter: Chris Douglas
Priority: Minor
If mapred.working.dir is not set, JobConf::setWorkingDirectory will attempt to obtain the default working directory for the default FileSystem. In trunk at least, if the default fs is HDFS and not reachable, set will fail:
{noformat}
java.net.UnknownHostException: unknown host: notahost
java.lang.RuntimeException: java.net.UnknownHostException: unknown host: notahost
at org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:541)
at org.apache.hadoop.mapred.JobConf.setWorkingDirectory(JobConf.java:522)
at org.apache.hadoop.conf.TestJobConf.testSetWorkingDir(TestJobConf.java:67)
Caused by: java.net.UnknownHostException: unknown host: notahost
at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:216)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:876)
at org.apache.hadoop.ipc.Client.call(Client.java:746)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:223)
at $Proxy4.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:366)
at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:169)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:276)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:235)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:83)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1430)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:69)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:1458)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1446)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:190)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:98)
at org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:537)
{noformat}
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