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[PIG-4692] MultiQuery and Union optimizer in Tez should terminate more than one output in scalar
...PIG-3957 makes POValueOutputTez terminate early if it is Scalar output and has more than one row in TezCompiler. Same should be done in MultiQuery and Union optimizer after the plan change....
, 2016-02-04, 04:17
[PIG-4782] OutOfMemoryError: GC overhead limit exceeded with POPartialAgg
... 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...
, 2016-02-01, 16:26
[PIG-4791] PORelationToExprProject filters records instead of returning emptybag in nested foreach after union
, 2016-01-29, 22:05
[PIG-4787] Log JSONLoader exception while parsing records
, 2016-01-28, 15:01
[PIG-4587] Applying isFirstReduceOfKey for Skewed left outer join skips records
...PIG-4377 introduced isFirstReduceOfKey to avoid extra records in case of over sampling. But the issue can occur only in the case of right outer join. But it is added to the plan in MRCompile...
, 2016-01-21, 22:41
Re: python UDF invocation or memory problem
- [mail # user]
...Run it in local mode after doing exportPIG_OPTS="-XX:+HeapDumpOnOutOfMemoryError-XX:HeapDumpPath=/tmp/heapdump.hprof" . Then you should be able to lookinto the heapdump and see where you are...
, 2016-01-19, 06:36
Re: Login with Kerberos keytab ?
- [mail # user]
...Can't you set up a cron to kinit periodically? If you need pig to do it,it will have to be a new jira. None of the clients (hadoop, pig, hive) doit now.On Wed, Jan 6, 2016 at 6:35 AM, ...
, 2016-01-19, 06:20
[PIG-4780] Reduce time taken by time consuming testcases
...Can look at reducing duplication and combining tests were applicable. performance and see if any improvements can be done to pig execution code or the test code if test can be rewritten to ...
, 2016-01-13, 22:00
[PIG-4737] Check and fix clone implementation for all classes extending PhysicalOperator
... PhysicalOperator.clone() eventually calls Object.clone() which only does a shallow copy (javadoc wrongly says deep copy) and this causes issues with UnionOptimizer in Tez. Most ...
, 2016-01-13, 18:46
[PIG-4773] [Pig on Tez] Secondary key descending sort in nested foreach after union does ascending instead
... PigSecondaryKeyComparator does not implement a compare(WritableComparable a, WritableComparable b) method. In case of OrderedGroupedMergedKVInput with vertex groups, object compa...
, 2016-01-11, 06:23
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