[
https://issues.apache.org/jira/browse/TAJO-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hyunsik Choi resolved TAJO-676.
-------------------------------
Resolution: Invalid
This is not a bug. This was caused by misuse of topology script.
> Even though RackResolver cause NPE, a query is not terminated.
> --------------------------------------------------------------
>
> Key: TAJO-676
> URL: https://issues.apache.org/jira/browse/TAJO-676
> Project: Tajo
> Issue Type: Bug
> Reporter: Seungun Choe
>
> {noformat}
> 2014-03-07 14:40:24,516 WARN net.ScriptBasedMapping
> (ScriptBasedMapping.java:runResolveCommand(245)) - Exception running
> /home/hadoop/servers/hadoop-2.0.0-cdh4.3.0/etc/hadoop/topology.py A.B.C.D
> java.io.IOException: Cannot run program
> "/home/hadoop/servers/hadoop-2.0.0-cdh4.3.0/etc/hadoop/topology.py" (in
> directory "/home/hadoop/servers/tajo-0.8.0-SNAPSHOT"): java.io.IOException:
> error=13, Permission denied
> at java.lang.ProcessBuilder.start(ProcessBuilder.java:470)
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:206)
> at org.apache.hadoop.util.Shell.run(Shell.java:188)
> at
> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:381)
> at
> org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.runResolveCommand(ScriptBasedMapping.java:242)
> at
> org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.resolve(ScriptBasedMapping.java:180)
> at
> org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:119)
> at
> org.apache.hadoop.yarn.util.RackResolver.coreResolve(RackResolver.java:98)
> at
> org.apache.hadoop.yarn.util.RackResolver.resolve(RackResolver.java:92)
> at
> org.apache.tajo.master.DefaultTaskScheduler$ScheduledRequests.addLeafTask(DefaultTaskScheduler.java:395)
> at
> org.apache.tajo.master.DefaultTaskScheduler$ScheduledRequests.access$600(DefaultTaskScheduler.java:367)
> at
> org.apache.tajo.master.DefaultTaskScheduler.handle(DefaultTaskScheduler.java:217)
> at
> org.apache.tajo.master.DefaultTaskScheduler.handle(DefaultTaskScheduler.java:55)
> at
> org.apache.tajo.master.querymaster.QueryMasterTask$TaskSchedulerDispatcher.handle(QueryMasterTask.java:250)
> at
> org.apache.tajo.master.querymaster.QueryMasterTask$TaskSchedulerDispatcher.handle(QueryMasterTask.java:245)
> at
> org.apache.tajo.master.TajoAsyncDispatcher.dispatch(TajoAsyncDispatcher.java:137)
> at
> org.apache.tajo.master.TajoAsyncDispatcher$1.run(TajoAsyncDispatcher.java:79)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.io.IOException: java.io.IOException: error=13, Permission
> denied
> at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
> at java.lang.ProcessImpl.start(ProcessImpl.java:65)
> at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
> ... 17 more
> 2014-03-07 14:40:24,518 FATAL master.TajoAsyncDispatcher
> (TajoAsyncDispatcher.java:dispatch(143)) - Error in dispatcher
> thread:T_SCHEDULE
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.util.RackResolver.coreResolve(RackResolver.java:99)
> at
> org.apache.hadoop.yarn.util.RackResolver.resolve(RackResolver.java:92)
> at
> org.apache.tajo.master.DefaultTaskScheduler$ScheduledRequests.addLeafTask(DefaultTaskScheduler.java:395)
> at
> org.apache.tajo.master.DefaultTaskScheduler$ScheduledRequests.access$600(DefaultTaskScheduler.java:367)
> at
> org.apache.tajo.master.DefaultTaskScheduler.handle(DefaultTaskScheduler.java:217)
> at
> org.apache.tajo.master.DefaultTaskScheduler.handle(DefaultTaskScheduler.java:55)
> at
> org.apache.tajo.master.querymaster.QueryMasterTask$TaskSchedulerDispatcher.handle(QueryMasterTask.java:250)
> at
> org.apache.tajo.master.querymaster.QueryMasterTask$TaskSchedulerDispatcher.handle(QueryMasterTask.java:245)
> at
> org.apache.tajo.master.TajoAsyncDispatcher.dispatch(TajoAsyncDispatcher.java:137)
> at
> org.apache.tajo.master.TajoAsyncDispatcher$1.run(TajoAsyncDispatcher.java:79)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}
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