Not sure about EMR. Your best bet is to ask on EMR forums.

Thanks,
Ashutosh


On Tue, Sep 3, 2013 at 2:18 PM, Nathanial Thelen <n...@natethelen.com>wrote:

> Is there a way to run a patch on EMR?
>
> Thanks,
> Nate
>
> On Sep 3, 2013, at 2:14 PM, Ashutosh Chauhan <hashut...@apache.org> wrote:
>
> Fix in very related area has been checked in trunk today :
> https://issues.apache.org/jira/browse/HIVE-5129 Likely that will fix your
> issue.
> Can you try latest trunk?
>
> Ashutosh
>
>
> On Tue, Sep 3, 2013 at 2:03 PM, Nathanial Thelen <n...@natethelen.com>wrote:
>
>> I am running Hive in EMR and since upgrading to 0.11 from 0.8.1.8 I have
>> been getting NullPointerExceptions (NPE) for certain queries in our staging
>> environment.  Only difference between stage and production is the amount of
>> traffic we get so the data set is much smaller.  We are not using any
>> custom code.
>>
>> I have greatly simplified the query down to the bare minimum that will
>> cause the error:
>>
>> SELECT
>>     count(DISTINCT ag.adGroupGuid) as groups,
>>     count(DISTINCT av.adViewGuid) as ads,
>>     count(DISTINCT ac.adViewGuid) as uniqueClicks
>> FROM
>>     adgroup ag
>>     INNER JOIN adview av ON av.adGroupGuid = ag.adGroupGuid
>>     LEFT OUTER JOIN adclick ac ON ac.adViewGuid = av.adViewGuid
>>
>> This will return the following before any Map Reduce jobs start:
>>
>> FAILED: NullPointerException null
>>
>> Looking in the hive log at /mnt/var/log/apps/hive_0110.log and scanning,
>> I see this error:
>>
>> 2013-09-03 18:09:19,796 INFO  org.apache.hadoop.hive.ql.exec.Utilities
>> (Utilities.java:getInputSummary(1889)) - Cache Content Summary for
>> s3://{ourS3Bucket}/hive/data/stage/adgroup/year=2013/month=08/day=29
>> length: 94324 file count: 20 directory count: 1
>> 2013-09-03 18:09:19,796 INFO  org.apache.hadoop.hive.ql.exec.Utilities
>> (Utilities.java:getInputSummary(1889)) - Cache Content Summary for
>> s3://{ourS3Bucket}/hive/data/stage/adview/year=2013/month=08/day=30 length:
>> 142609 file count: 21 directory count: 1
>> 2013-09-03 18:09:19,796 INFO  org.apache.hadoop.hive.ql.exec.Utilities
>> (Utilities.java:getInputSummary(1889)) - Cache Content Summary for
>> s3://{ourS3Bucket}/hive/data/stage/adgroup/year=2013/month=08/day=30
>> length: 65519 file count: 21 directory count: 1
>> 2013-09-03 18:09:19,796 INFO  org.apache.hadoop.hive.ql.exec.Utilities
>> (Utilities.java:getInputSummary(1889)) - Cache Content Summary for
>> s3://{ourS3Bucket}/hive/data/stage/adview/year=2013/month=08/day=29 length:
>> 205096 file count: 20 directory count: 1
>> 2013-09-03 18:09:19,800 INFO
>>  org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer
>> (MetadataOnlyOptimizer.java:dispatch(267)) - Looking for table scans where
>> optimization is applicable
>> 2013-09-03 18:09:19,801 INFO
>>  org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer
>> (MetadataOnlyOptimizer.java:dispatch(301)) - Found 0 metadata only table
>> scans
>> 2013-09-03 18:09:19,801 INFO
>>  org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer
>> (MetadataOnlyOptimizer.java:dispatch(267)) - Looking for table scans where
>> optimization is applicable
>> 2013-09-03 18:09:19,801 INFO
>>  org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer
>> (MetadataOnlyOptimizer.java:dispatch(301)) - Found 1 metadata only table
>> scans
>> 2013-09-03 18:09:19,801 ERROR org.apache.hadoop.hive.ql.Driver
>> (SessionState.java:printError(386)) - FAILED: NullPointerException null
>> java.lang.NullPointerException
>> at
>> org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer$MetadataOnlyTaskDispatcher.dispatch(MetadataOnlyOptimizer.java:308)
>>  at
>> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:87)
>> at
>> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:124)
>>  at
>> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:101)
>> at
>> org.apache.hadoop.hive.ql.optimizer.physical.MetadataOnlyOptimizer.resolve(MetadataOnlyOptimizer.java:175)
>>  at
>> org.apache.hadoop.hive.ql.optimizer.physical.PhysicalOptimizer.optimize(PhysicalOptimizer.java:79)
>> at
>> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genMapRedTasks(SemanticAnalyzer.java:8426)
>>  at
>> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:8789)
>> at
>> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:278)
>>  at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:433)
>> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:337)
>>  at org.apache.hadoop.hive.ql.Driver.run(Driver.java:902)
>> at
>> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:310)
>>  at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:231)
>> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:466)
>>  at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:819)
>> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:674)
>>  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.util.RunJar.main(RunJar.java:187)
>>
>> The same error also happens if I do an INNER JOIN to adclick, FYI.
>>
>> I have checked that there are not any null values for any of the columns
>> referenced in the query.
>>
>> Making almost any changes to the query results it in successfully
>> running.  Here are some I have tried:
>>
>> Removed JOIN to adgroup:
>>
>> SELECT
>>     count(DISTINCT av.adViewGuid) as ads,
>>     count(DISTINCT ac.adViewGuid) as uniqueClicks
>> FROM
>>     adview av
>>     LEFT OUTER JOIN adclick ac ON ac.adViewGuid = av.adViewGuid;
>>
>> WORKS:
>> 561 6
>>
>> Removed JOIN to adclick:
>>
>> SELECT
>>     count(DISTINCT ag.adGroupGuid) as groups,
>>     count(DISTINCT av.adViewGuid) as ads
>> FROM
>>     adgroup ag
>>     INNER JOIN adview av ON av.adGroupGuid = ag.adGroupGuid;
>>
>> WORKS:
>> 543 561
>>
>> Removing DISTINCT from any of the 3 counts
>>
>> SELECT
>>     count(DISTINCT ag.adGroupGuid) as groups,
>>     count(DISTINCT av.adViewGuid) as ads,
>>     count(ac.adViewGuid) as uniqueClicks
>> FROM
>>     adgroup ag
>>     INNER JOIN adview av ON av.adGroupGuid = ag.adGroupGuid
>>     LEFT OUTER JOIN adclick ac ON ac.adViewGuid = av.adViewGuid;
>>
>> WORKS:
>> 543 561 7
>>
>>
>> SELECT
>>     count(ag.adGroupGuid) as groups,
>>     count(DISTINCT av.adViewGuid) as ads,
>>     count(DISTINCT ac.adViewGuid) as uniqueClicks
>> FROM
>>     adgroup ag
>>     INNER JOIN adview av ON av.adGroupGuid = ag.adGroupGuid
>>     LEFT OUTER JOIN adclick ac ON ac.adViewGuid = av.adViewGuid;
>>
>> WORKS:
>> 562 561 6
>>
>>
>> SELECT
>>     count(DISTINCT ag.adGroupGuid) as groups,
>>     count(av.adViewGuid) as ads,
>>     count(DISTINCT ac.adViewGuid) as uniqueClicks
>> FROM
>>     adgroup ag
>>     INNER JOIN adview av ON av.adGroupGuid = ag.adGroupGuid
>>     LEFT OUTER JOIN adclick ac ON ac.adViewGuid = av.adViewGuid;
>>
>> WORKS:
>> 543 562 6
>>
>> I am not exactly sure what to do next.  Thoughts?
>>
>> Nate
>>
>
>
>

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