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[PIG-4708] Upgrade joda-time to 2.8 - Pig - [issue]
...  Folks writing UDFs are using more recent versions of joda-time and that conflicts with the one bundled with Pig. Would be good to upgrade to 2.8.2 which is the latest one.  I als...
http://issues.apache.org/jira/browse/PIG-4708    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4845] Parallel instantiation of classes in Tez cause tasks to fail - Pig - [issue]
...OptionBuilder is not thread-safehttps://commons.apache.org/proper/commons-cli/javadocs/api-release/org/apache/commons/cli/OptionBuilder.htmlThis class is NOT thread safe. See CLI-209HBaseSto...
http://issues.apache.org/jira/browse/PIG-4845    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4651] Optimize NullablePartitionWritable serialization for skewed join - Pig - [issue]
... Currently the class name of the skewed join key type is serialized for every record in NullablePartitionWritable which is a lot of waste...
http://issues.apache.org/jira/browse/PIG-4651    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4782] OutOfMemoryError: GC overhead limit exceeded with POPartialAgg - Pig - [issue]
...  In some cases, even though spill is triggered the main thread is still executing some user UDF which constructs a DataBag which requires lot of memory. Since we block on spill in POPa...
http://issues.apache.org/jira/browse/PIG-4782    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4702] Load once for sampling and partitioning in order by for certain LoadFuncs - Pig - [issue]
...  For HBase and Accumulo, it will be more efficient on IO to have the data written to disk instead of reading from them again....
http://issues.apache.org/jira/browse/PIG-4702    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4574] Eliminate identity vertex for order by and skewed join right after LOAD - Pig - [issue]
...If ORDER BY or SKEWED JOIN is the operator immediately following LOAD+FOREACH without any FILTER, then data should be read again from HDFS for the partitioner vertex instead of writing to a ...
http://issues.apache.org/jira/browse/PIG-4574    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4627] [Pig on Tez] Self join does not handle null values correctly - Pig - [issue]
... Self join does not produce right results in case of null after PIG-4495 which writes multiple inputs into same tez input. Need the https://issues.apache.org/jira/secure/attachment/1262...
http://issues.apache.org/jira/browse/PIG-4627    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4688] Limit followed by POPartialAgg can give empty or partial results in Tez - Pig - [issue]
...This is due to endOfAllInput flag not being set....
http://issues.apache.org/jira/browse/PIG-4688    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4801] Provide backward compatibility with mapreduce mapred.task settings - Pig - [issue]
... Some users use settings like mapred.task.id in their UDFs. It is not available in Tez and the job breaks....
http://issues.apache.org/jira/browse/PIG-4801    Author: Rohini Palaniswamy , 2016-06-08, 20:48
[PIG-4757] Job stats on successfully read/output records wrong with multiple inputs/outputs - Pig - [issue]
...TezVertexStats uses TaskCounter.INPUT_RECORDS_PROCESSED to display records read from MRInput. But in cases of replicate join or scalar it also includes replicate join input.  Need to ha...
http://issues.apache.org/jira/browse/PIG-4757    Author: Rohini Palaniswamy , 2016-06-08, 20:48