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[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
[PIG-4775] Better default values for shuffle bytes per reducer
...Currently the code does not set TEZ_SHUFFLE_VERTEX_MANAGER_DESIRED_TASK_INPUT_SIZE if BYTES_PER_REDUCER_PARAM is not set or equal to DEFAULT_BYTES_PER_REDUCER (1G). Which makes it default to...
, 2016-01-11, 02:55
[PIG-4757] Job stats on successfully read/output records wrong with multiple inputs/outputs
...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...
, 2016-01-06, 22:26
[PIG-4769] UnionOptimizer hits errors when merging vertex group into split
...1) For a script that needs store vertex group removed and merged into split, it gives errorCaused by: java.lang.IllegalArgumentException: VertexGroup must have at least 2 membersas we leave ...
, 2016-01-05, 08:31
[PIG-4096] Implement predicate pushdown evaluation in OrcStorage
... Parquest supports predicate evaluation and filtering of records natively via https://github.com/apache/incubator-parquet-mr/blob/master/parquet-column/src/main/java/parquet/filter2/pre...
, 2015-11-29, 20:30
[PIG-4094] Predicate pushdown to support complex data types
... Parquet has support for pushing predicates on tuples, maps and bags according to Aniket Mokashi. ORC currently only supports primitives, but will add support for structs(tuples) in the...
, 2015-11-29, 20:29
[PIG-4697] Serialize relevant part of the udfcontext per vertex to reduce payload size
... What HCatLoader/HCatStorer puts in UDFContext is huge and if there are multiple of them in the pig script, the size of data sent to Tez AM is huge and also the size of data that Tez AM...
, 2015-11-14, 00:49
[PIG-4735] PartitionerDefinedVertexManager should do slowstart
...Currently all the partitioner vertex and final reducer vertex tasks are started as soon as the sampler vertex completes. The final reducer vertex tasks should only start after a percentage o...
, 2015-11-13, 23:30
[PIG-4733] Avoid NullPointerException in JVMReuseImpl for builtin classes
, 2015-11-13, 19:45
[PIG-4722] [Pig on Tez] NPE while running Combiner
...DefaultSorter in Tez calls Combiner from two different threads - during spill in SpillThread and flush in the main thread. If both run the combiner, one ends up with NPE as Reporter is set o...
, 2015-11-13, 19:28
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