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From Aniket Mokashi <aniket...@gmail.com>
Subject Re: Pig partition filter using operator other than ==
Date Mon, 19 Nov 2012 20:33:45 GMT
Look at https://issues.apache.org/jira/browse/HIVE-2609 or
https://issues.apache.org/jira/browse/HCATALOG-209.

~Aniket


On Mon, Nov 19, 2012 at 12:30 PM, Timothy Potter <thelabdude@gmail.com>wrote:

> More to this ... finally tracked down the hive server log and am seeing
> this:
>
> 2012-11-19 19:42:53,700 ERROR server.TThreadPoolServer
> (TThreadPoolServer.java:run(182)) - Error occurred during processing of
> message.
> java.lang.NullPointerException
> at
> org.datanucleus.store.mapped.mapping.MappingHelper.getMappingIndices(MappingHelper.java:35)
> at
> org.datanucleus.store.mapped.expression.StatementText.applyParametersToStatement(StatementText.java:194)
>  at
> org.datanucleus.store.rdbms.query.RDBMSQueryUtils.getPreparedStatementForQuery(RDBMSQueryUtils.java:233)
> at
> org.datanucleus.store.rdbms.query.legacy.SQLEvaluator.evaluate(SQLEvaluator.java:115)
>  at
> org.datanucleus.store.rdbms.query.legacy.JDOQLQuery.performExecute(JDOQLQuery.java:288)
> at org.datanucleus.store.query.Query.executeQuery(Query.java:1657)
>  at
> org.datanucleus.store.rdbms.query.legacy.JDOQLQuery.executeQuery(JDOQLQuery.java:245)
> at org.datanucleus.store.query.Query.executeWithMap(Query.java:1526)
>  at org.datanucleus.jdo.JDOQuery.executeWithMap(JDOQuery.java:334)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.listMPartitionsByFilter(ObjectStore.java:1711)
>  at
> org.apache.hadoop.hive.metastore.ObjectStore.getPartitionsByFilter(ObjectStore.java:1581)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>  at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>  at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hive.metastore.RetryingRawStore.invoke(RetryingRawStore.java:111)
>  at $Proxy4.getPartitionsByFilter(Unknown Source)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions_by_filter(HiveMetaStore.java:2466)
>  at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions_by_filter.getResult(ThriftHiveMetastore.java:5817)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions_by_filter.getResult(ThriftHiveMetastore.java:5805)
>  at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:32)
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:115)
>  at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:112)
> at java.security.AccessController.doPrivileged(Native Method)
>  at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1332)
>  at
> org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java:520)
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:123)
>  at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:176)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>  at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
>
>
> On Mon, Nov 19, 2012 at 12:53 PM, Timothy Potter <thelabdude@gmail.com>wrote:
>
>> Hi,
>>
>> I'm using HCatalog 0.4.0 with Pig 0.10 and am not having success using an
>> operator other than (==) with my partition field.
>>
>> For example, the following works (day is my partition field):
>>
>> signals = load 'signals' using org.apache.hcatalog.pig.HCatLoader();
>>
>> signals_for_day = filter signals by (day == '2012-10-30_1200' ANDservice
>> IS NOT NULL);
>>
>> samp1 = sample signals_for_day 0.01;
>>
>> dump samp1;
>>
>>
>> but, if I change my filter to: signals_for_day = filter signals by (day
>> >= '2012-10-30_1200' AND service IS NOT NULL);
>>
>> Then I get the following error:
>>
>> Caused by: java.io.IOException:
>> org.apache.thrift.transport.TTransportException
>> at
>> org.apache.hcatalog.mapreduce.HCatInputFormat.setInput(HCatInputFormat.java:42)
>>  at org.apache.hcatalog.pig.HCatLoader.setLocation(HCatLoader.java:90)
>> at
>> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.getJob(JobControlCompiler.java:380)
>>  ... 19 more
>> Caused by: org.apache.thrift.transport.TTransportException
>> at
>> org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132)
>>  at org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
>> at
>> org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:378)
>>  at
>> org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:297)
>> at
>> org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:204)
>>  at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
>> at
>> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_get_partitions_by_filter(ThriftHiveMetastore.java:1511)
>>  at
>> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.get_partitions_by_filter(ThriftHiveMetastore.java:1495)
>> at
>> org.apache.hadoop.hive.metastore.HiveMetaStoreClient.listPartitionsByFilter(HiveMetaStoreClient.java:691)
>>  at
>> org.apache.hcatalog.mapreduce.InitializeInput.getSerializedHcatKeyJobInfo(InitializeInput.java:98)
>> at
>> org.apache.hcatalog.mapreduce.InitializeInput.setInput(InitializeInput.java:73)
>>  at
>> org.apache.hcatalog.mapreduce.HCatInputFormat.setInput(HCatInputFormat.java:40)
>> ... 21 more
>>
>> I can start debugging but would like to know if HCatalog is supposed to
>> support this type of filtering by partition fields?
>>
>> Thanks.
>> Tim
>>
>>
>


-- 
"...:::Aniket:::... Quetzalco@tl"

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