Member since
01-07-2016
89
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20
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6
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My Accepted Solutions
| Title | Views | Posted |
|---|---|---|
| 9654 | 02-05-2016 02:17 PM | |
| 10915 | 02-05-2016 12:56 AM | |
| 4004 | 01-29-2016 03:24 AM | |
| 1894 | 01-20-2016 03:52 PM | |
| 1664 | 01-20-2016 08:48 AM |
01-29-2016
03:32 AM
1 Kudo
Hi, I have simple Pig script. Im trying to load avro file or directory that contains avro file using AvroStorage in Mapreduce mode. I tried almost all the combinations (hdfs://, / , hdfs://ip:port/file ... ) but nothing works. Using command below set = load '/spool-dir/CustomerData-20160128-1501807/' USING org.apache.pig.piggybank.storage.avro.AvroStorage (); I got error: 2016-01-29 00:10:08,439 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator for alias sensitiveSet. Backend error : java.lang.RuntimeException: could not instantiate 'org.apache.pig.piggybank.storage.avro.AvroStorage' with arguments 'null'
2016-01-29 00:10:08,439 [main] WARN org.apache.pig.tools.grunt.Grunt - There is no log file to write to.
2016-01-29 00:10:08,439 [main] ERROR org.apache.pig.tools.grunt.Grunt - org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias sensitiveSet. Backend error : java.lang.RuntimeException: could not instantiate 'org.apache.pig.piggybank.storage.avro.AvroStorage' with arguments 'null'
at org.apache.pig.PigServer.openIterator(PigServer.java:925)
at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:754) or using command with argument set = load '/spool-dir/CustomerData-20160128-1501807/' USING org.apache.pig.piggybank.storage.avro.AvroStorage('no_schema_check'); 2016-01-29 00:25:02,767 [main] ERROR org.apache.pig.tools.grunt.Grunt - org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias sensitiveSet. Backend error : java.lang.RuntimeException: could not instantiate 'org.apache.pig.piggybank.storage.avro.AvroStorage' with arguments '[no_schema_check]' at org.apache.pig.PigServer.openIterator(PigServer.java:925 My samples are almost identical with the ones on the avrostorage documentation, but i really cant see where the problem is. The problem is partially described on stackexchange also. Thank you
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Apache Pig
01-29-2016
03:24 AM
Ok, problem was with postgre, this partially helped pg_resetxlog -f /var/lib/pgsql/data
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01-28-2016
05:54 PM
1 Kudo
so whats the problem with postgres? how can i run it? trying /etc/init.d/postrgres its failing .. .there are no LOGS in /var/log why?
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01-28-2016
05:41 PM
1 Kudo
[root@sandbox ~]# ambari-server status Using python /usr/bin/python2.6
Ambari-server status Ambari Server not running. Stale PID File at:
/var/run/ambari-server/ambari-server.pid [root@sandbox ~]# ambari-server
start Using python /usr/bin/python2.6 Starting ambari-server Ambari
Server running with administrator privileges. Running initdb: This may
take upto a minute. About to start PostgreSQL ERROR: Exiting with exit
code 3. REASON: Unable to start PostgreSQL server. Status stopped. .
Exiting
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01-20-2016
01:10 PM
Im wondering why HDFS is involved in the output error, im executing pig script in -x local mode.
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01-20-2016
01:08 PM
@Artem Ervits as user root (uid=0), doesnt matter what dir is it. I tried chomod 777 /avro-out/
STORE A INTO '/avro-out/xyz-CustomerData-20160120-1101174-ttp' The same error occured.
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01-20-2016
11:24 AM
Hi, I use AvroStorage to store relation into avro file, when i dont specify any path inside the STORE all works fine, but when path is explicitly specified then im occurring strange error related to the permissions.... any idea? I run pig in local mode, why is there hdfs issue? using stamement without specifiyng the path, all works fine. STORE A INTO 'xyz-CustomerData-20160120-1101174-ttp' using statement below i got error: STORE A INTO '/root/xyz-CustomerData-20160120-1101174-ttp'
java.lang.Exception: org.apache.hadoop.security.AccessControlException: Permission denied: user=root, access=WRITE, inode="/root/xyz-CustomerData-20160120-1101174-ttp/_temporary/0/_temporary/attempt_local1434837835_0012_m_000000_0/part-m-00000.avro":hdfs:hdfs:drwxr-xr-x
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:319)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:292)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:213)
at org.apache.ranger.authorization.hadoop.RangerHdfsAuthorizer$RangerAccessControlEnforcer.checkPermission(RangerHdfsAuthorizer.java:300)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1771)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1755)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkAncestorAccess(FSDirectory.java:1738)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:2509)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2444)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2328)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:624)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:397)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2137)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2133)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2131)
at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: org.apache.hadoop.security.AccessControlException: Permission denied: user=root, access=WRITE, inode="/root/xyz-CustomerData-20160120-1101174-ttp/_temporary/0/_temporary/attempt_local1434837835_0012_m_000000_0/part-m-00000.avro":hdfs:hdfs:drwxr-xr-x
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:319)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:292)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:213)
at org.apache.ranger.authorization.hadoop.RangerHdfsAuthorizer$RangerAccessControlEnforcer.checkPermission(RangerHdfsAuthorizer.java:300)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1771)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1755)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkAncestorAccess(FSDirectory.java:1738)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:2509)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2444)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2328)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:624)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:397)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2137)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2133)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2131)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73)
at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1697)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1703)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1638)
at org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:448)
at org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:444)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:444)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:387)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:909)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:890)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:787)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:776)
at org.apache.pig.piggybank.storage.avro.PigAvroOutputFormat.getRecordWriter(PigAvroOutputFormat.java:109)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.getRecordWriter(PigOutputFormat.java:81)
at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:647)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:767)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException): Permission denied: user=root, access=WRITE, inode="/root/xyz-CustomerData-20160120-1101174-ttp/_temporary/0/_temporary/attempt_local1434837835_0012_m_000000_0/part-m-00000.avro":hdfs:hdfs:drwxr-xr-x
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:319)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:292)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:213)
at org.apache.ranger.authorization.hadoop.RangerHdfsAuthorizer$RangerAccessControlEnforcer.checkPermission(RangerHdfsAuthorizer.java:300)
at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1771)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1755)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkAncestorAccess(FSDirectory.java:1738)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:2509)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2444)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2328)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:624)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:397)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2137)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2133)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2131) at org.apache.hadoop.ipc.Client.call(Client.java:1427)
at org.apache.hadoop.ipc.Client.call(Client.java:1358)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy14.create(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:296)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy15.create(Unknown Source)
at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1692)
... 22 more
2016-01-20 11:17:46,729 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - HadoopJobId: job_local1434837835_0012
2016-01-20 11:17:46,729 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Processing aliases sensitiveSet
2016-01-20 11:17:46,729 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - detailed locations: M: sensitiveSet[5,15] C: R:
2016-01-20 11:17:46,733 [main] WARN org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Ooops! Some job has failed! Specify -stop_on_failure if you want Pig to stop immediately on failure.
2016-01-20 11:17:46,734 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - job job_local1434837835_0012 has failed! Stop running all dependent jobs
2016-01-20 11:17:46,734 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 100% complete
2016-01-20 11:17:46,736 [main] INFO org.apache.hadoop.metrics.jvm.JvmMetrics - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
2016-01-20 11:17:46,738 [main] INFO org.apache.hadoop.metrics.jvm.JvmMetrics - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
2016-01-20 11:17:46,739 [main] ERROR org.apache.pig.tools.pigstats.mapreduce.MRPigStatsUtil - 1 map reduce job(s) failed!
2016-01-20 11:17:46,739 [main] INFO org.apache.pig.tools.pigstats.mapreduce.SimplePigStats - Script Statistics:
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Apache Pig
01-20-2016
08:48 AM
1 Kudo
ok works on local FS also. grunt> fs -getmerge dir file
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01-20-2016
08:16 AM
Hi, what do you mean by Java mapreduce? Directly into Java mapreduce code? Im storing results into normal FS, can i use hdfs commands on files/directories stored on normal FS?
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