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From "Arina Ielchiieva (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-5280) Error during udf area creation due to NullPointerException during drillbit startup
Date Fri, 24 Feb 2017 12:49:44 GMT

     [ https://issues.apache.org/jira/browse/DRILL-5280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arina Ielchiieva updated DRILL-5280:
------------------------------------
    Affects Version/s: 1.10.0

> Error during udf area creation due to NullPointerException during drillbit startup
> ----------------------------------------------------------------------------------
>
>                 Key: DRILL-5280
>                 URL: https://issues.apache.org/jira/browse/DRILL-5280
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.10.0
>         Environment: Windows 7 64-bit
> Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
>            Reporter: Usman Shahid
>
> I tried to start drill in distributed mode but ran into this:
> {code}Exception in thread "main" org.apache.drill.exec.exception.DrillbitStartupException:
Failure during initial startup of Drillbit.
> 	at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:296)
> 	at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:272)
> 	at org.apache.drill.exec.server.Drillbit.main(Drillbit.java:268)
> Caused by: org.apache.drill.common.exceptions.DrillRuntimeException: Error during udf
area creation [/C:/Users/Usman.Shahid/drill/udf/registry] on file system [file:///]
> 	at org.apache.drill.common.exceptions.DrillRuntimeException.format(DrillRuntimeException.java:49)
> 	at org.apache.drill.exec.expr.fn.registry.RemoteFunctionRegistry.createArea(RemoteFunctionRegistry.java:251)
> 	at org.apache.drill.exec.expr.fn.registry.RemoteFunctionRegistry.prepareAreas(RemoteFunctionRegistry.java:208)
> 	at org.apache.drill.exec.expr.fn.registry.RemoteFunctionRegistry.init(RemoteFunctionRegistry.java:105)
> 	at org.apache.drill.exec.server.Drillbit.run(Drillbit.java:126)
> 	at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:292)
> 	... 2 more
> Caused by: java.lang.NullPointerException
> 	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1012)
> 	at org.apache.hadoop.util.Shell.runCommand(Shell.java:483)
> 	at org.apache.hadoop.util.Shell.run(Shell.java:456)
> 	at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:722)
> 	at org.apache.hadoop.util.Shell.execCommand(Shell.java:815)
> 	at org.apache.hadoop.util.Shell.execCommand(Shell.java:798)
> 	at org.apache.hadoop.fs.FileUtil.execCommand(FileUtil.java:1097)
> 	at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:654)
> 	at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.getPermission(RawLocalFileSystem.java:629)
> 	at org.apache.drill.exec.expr.fn.registry.RemoteFunctionRegistry.createArea(RemoteFunctionRegistry.java:232)
> 	... 6 more
> {code}
> The complete stack trace for the `NullPointerException` is:
> {code}
> Thread [main] (Suspended (exception NullPointerException))	
> 	owns: Object  (id=57)	
> 	ProcessBuilder.start() line: 1012	
> 	Shell$ShellCommandExecutor(Shell).runCommand() line: 483	
> 	Shell$ShellCommandExecutor(Shell).run() line: 456	
> 	Shell$ShellCommandExecutor.execute() line: 722	
> 	Shell.execCommand(Map<String,String>, String[], long) line: 815	
> 	Shell.execCommand(String...) line: 798	
> 	FileUtil.execCommand(File, String...) line: 1097	
> 	RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo() line: 654	
> 	RawLocalFileSystem$DeprecatedRawLocalFileStatus.getPermission() line: 629	
> 	RemoteFunctionRegistry.createArea(FileSystem, String, String) line: 232	
> 	RemoteFunctionRegistry.prepareAreas(DrillConfig) line: 208	
> 	RemoteFunctionRegistry.init(DrillConfig, PersistentStoreProvider, ClusterCoordinator)
line: 105	
> 	Drillbit.run() line: 126	
> 	Drillbit.start(DrillConfig, RemoteServiceSet) line: 292	
> 	Drillbit.start(StartupOptions) line: 272	
> 	Drillbit.main(String[]) line: 268	
> {code}
> To further pinpoint it, the call to _Shell.getGetPermissionCommand()_ at _RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo()_
returns a new String[] { WINUTILS, "ls", "-F" }. It's this WINUTILS that's null because my
system doesn't have hadoop installed (nor do I intend to use it). 
> The shortest workaround to this is to have a _HADOOP_HOME_ environment variable pointing
towards the _winutils.exe_ bin directory. 



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