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CHANGES.txt
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Pig Change Log
Trunk (unreleased changes)
INCOMPATIBLE CHANGES
IMPROVEMENTS
PIG-5438: Update SparkCounter.Accumulator to AccumulatorV2 (knoguchi)
PIG-5439: Support Spark 3 and drop SparkShim (knoguchi)
OPTIMIZATIONS
BUG FIXES
PIG-5416: Spark unit tests failing randomly with "java.lang.RuntimeException: Unexpected job execution status RUNNING" (knoguchi)
PIG-5447: Pig-on-Spark TestSkewedJoin.testSkewedJoinOuter failing with NoSuchElementException (knoguchi)
PIG-5448: All TestHBaseStorage tests failing on pig-on-spark3 (knoguchi)
PIG-5446: Tez TestPigProgressReporting.testProgressReportingWithStatusMessage failing (knoguchi)
PIG-5450: Pig-on-Spark3 E2E ORC test failing with java.lang.VerifyError: Bad return type (knoguchi)
PIG-5452: Null handling of FLATTEN with user defined schema (as clause) (knoguchi)
Release 0.18.0 - Unreleased
INCOMPATIBLE CHANGES
PIG-5282: Upgade to Java 8 (satishsaley via rohini)
IMPROVEMENTS
PIG-5437: Add lib and idea folder to .gitignore (maswin via rohini)
PIG-5436: update owasp version (knoguchi via rohini)
PIG-5434: Migrate from log4j to reload4j (rohini)
PIG-5417: Replace guava's Files.createTempDir() (xiaoheipangzi via rohini)
PIG-5429: Update hbase version from 2.0.0 to 2.4.14 (knoguchi)
PIG-5428: Update hadoop2,3 and tez to recent versions (knoguchi)
PIG-5422: Upgrade guava/groovy dependency (knoguchi via rohini)
PIG-5421: Upgrade commons dependencies (knoguchi via rohini)
PIG-5253: Pig Hadoop 3 support (nkollar,szita via rohini)
PIG-5377: Move supportsParallelWriteToStoreLocation from StoreFunc to StoreFuncInterfce (kpriceyahoo via rohini)
PIG-5398: SparkLauncher does not read SPARK_CONF_DIR/spark-defaults.conf (knoguchi)
PIG-5397: Update spark2.version to 2.4.8 (knoguchi)
PIG-5400: OrcStorage dropping struct(tuple) when it only holds a single field inside a Bag(array) (knoguchI)
PIG-4764: Make Pig work with Hive 3.1 (szita)
PIG-5352: Please add OWASP Dependency Check to the build ivy.xml (knoguchi)
PIG-5385: Skip calling extra gc() before spilling large bag when unnecessary (knoguchi)
PIG-5389: Passing null to REPLACE udf preventing JIT optimization (knoguchi)
PIG-5382: Log the name when POStore fails on write (knoguchi)
PIG-5255: Improvements to bloom join (satishsaley via rohini)
PIG-5359: Reduce time spent in split serialization (satishsaley via rohini)
PIG-5357: BagFactory interface should support creating a distinct bag from a set (jtolar via rohini)
PIG-5354: Show fieldname and a line number for casting errors (knoguchi)
PIG-5342: Add setting to turn off bloom join combiner (satishsaley via rohini)
PIG-5349: Log stderr output when shell command fail (knoguchi)
PIG-3038: Support for Credentials for UDF,Loader and Storer (satishsaley via rohini)
PIG-5358: Remove hive-contrib jar from lib directory (szita)
PIG-5343: Upgrade developer build environment (nielsbasjes via szita)
PIG-5191: Pig HBase 2.0.0 support (nkollar via szita, reviewed by rohini)
PIG-5344: Update Apache HTTPD LogParser to latest version (nielsbasjes via szita)
PIG-4092: Predicate pushdown for Parquet (nkollar via rohini)
PIG-5317: Upgrade old dependencies: commons-lang, hsqldb, commons-logging (nkollar via rohini)
PIG-5322: ConstantCalculator optimizer is not applied for split (rohini)
PIG-5316: Initialize mapred.task.id property for PoS jobs (nkollar via szita)
PIG-5302: Remove HttpClient dependency (nkollar via szita)
PIG-5305: Enable yarn-client mode execution of tests in Spark (1) mode (szita)
PIG-4120: Broadcast the index file in case of POMergeCoGroup and POMergeJoin (satishsaley via rohini)
PIG-5306: REGEX_EXTRACT() logs every line that doesn't match (satishsaley via rohini)
PIG-5298: Verify if org.mortbay.jetty is removable (nkollar via szita)
PIG-5268: Review of org.apache.pig.backend.hadoop.datastorage.HDataStorage (belugabehr via daijy)
PIG-5288: Improve performance of PigTextRawBytesComparator (rohini)
PIG-5287: bump jython to 2.7.1 (dbist13 via rohini)
PIG-5264: Remove deprecated keys from PigConfiguration (nkollar via rohini)
PIG-5157: Upgrade to Spark 2.0 (nkollar via liyunzhang)
PIG-5237: Fix DOT file parsing to enable DOT-based physical plan testing (YaShock via szita)
PIG-5269: MapReduceLauncher and MRJobStats imports org.python.google.common.collect.Lists instead of org.google.common.collect.Lists (nkollar via szita)
PIG-4700: Enable progress reporting for Tasks in Tez (satishsaley via rohini)
PIG-5251: Bump joda-time to 2.9.9 (dbist13 via rohini)
OPTIMIZATIONS
BUG FIXES
PIG-5440: Extra jars needed for hive3 (knoguchi via rohini)
PIG-5442: Add only credentials from setStoreLocation to the Job Conf (maswin via rohini)
PIG-5441: Pig skew join tez grace reducer fails to find shuffle data (yigress via rohini)
PIG-5432: OrcStorage fails to detect schema in some cases (jtolar via rohini)
PIG-5439: pig.exec.reducers.max does not take effect for skewed join (vnarayanan7 via rohini)
PIG-5431: Date datatype is different between Hive 1.x and Hive 3.x (rohini)
PIG-5433: Fix test failures with TestHBaseStorage and htrace dependency (rohini)
PIG-5430: TestTezGraceParallelism failing due to tez log change (knoguchi)
PIG-5406: TestJoinLocal imports org.python.google.common.collect.Lists instead of org.google.common.collect.Lists (rohini)
PIG-5425: Pig 0.15 and later don't set context signature correctly (jtolar via rohini)
PIG-5413: [spark] TestStreaming.testInputCacheSpecs failing with "File script1.pl was already registered" (knoguchi)
PIG-5415: [spark] TestScriptLanguage conflict between multiple SparkContext (after spark2.4 upgrade) (knoguchi)
PIG-5412: testSkewedJoinOuter spark unit-test failing with ClassNotFoundException (knoguchi)
PIG-5404: FLATTEN infers wrong datatype (knoguchi)
PIG-5243: describe with typecast on as-clause shows the types before the typecasting (knoguchi)
PIG-5403: streaming job stuck with script failure when combined with ORDER BY (knoguchi)
PIG-5362: Parameter substitution of shell cmd results doesn't handle backslash addendum (szita)
PIG-5395: Pig build is failing due to maven repo access point change (szita)
PIG-5375: NullPointerException for multi-level self unions with Tez UnionOptimizer (knoguchi)
PIG-5386: Pig local mode with bundled Hadoop broken (nkollar)
PIG-5387: Test failures on JRE 11 (nkollar)
PIG-5383: OrcStorage fails when "bytearray" represents unknown type (knoguchi)
PIG-5372: SAMPLE/RANDOM(udf) before skewed join failing with NPE (knoguchi)
PIG-5374: Use CircularFifoBuffer in InterRecordReader (szita)
PIG-5373: InterRecordReader might skip records if certain sync markers are used (szita)
PIG-5370: Union onschema + columnprune dropping used fields (knoguchi)
PIG-5362: Parameter substitution of shell cmd results doesn't handle backslash (wlauer via rohini)
PIG-5355: Negative progress report by HBaseTableRecordReader (satishsaley via knoguchi)
PIG-5341: PigStorage with -tagFile/-tagPath produces incorrect results with column pruning (knoguchi)
PIG-5335: Error message from range projection completely misleading (knoguchi)
PIG-5333: LoadCaster sometimes not set for complex type (knoguchi)
PIG-5328: expressionOperator Divide.equalsZero(DataType.BIGDECIMAL) is invalid (michaelthoward via knoguchi)
PIG-5320: TestCubeOperator#testRollupBasic is flaky on Spark 2.2 (nkollar via szita)
PIG-5327: Check for DAG status before trying to kill (rohini)
PIG-5325: Schema disambiguation can't be turned off for nested schemas (szita)
PIG-5311: POReservoirSample fails for more than Integer.MAX_VALUE records (rohini)
PIG-3864: ToDate(userstring, format, timezone) computes DateTime with strange handling of Daylight Saving Time with location based timezones (daijy via rohini)
PIG-5312: Uids not set in inner schemas after UNION ONSCHEMA (tmwoodruff via knoguchi)
PIG-5300: hashCode for Bag needs to be order independent (knoguchi)
PIG-5318: Unit test failures on Pig on Spark with Spark 2.2 (nkollar via szita)
PIG-5201: Null handling on FLATTEN (knoguchi)
PIG-5315: pig.script is not set for scripts run via PigServer (satishsaley via rohini)
PIG-5310: MergeJoin throwing NullPointer Exception (satishsaley via rohini)
PIG-5314: Abort method is not implemented in PigProcessor (satishsaley via rohini)
PIG-5307: NPE in TezOperDependencyParallelismEstimator (rohini)
PIG-5272: BagToTuple output schema is incorrect (juen1jp via rohini)
PIG-5271: StackOverflowError when compiling in Tez mode (with union and replicated join) (knoguchi)
PIG-5299: PartitionFilterOptimizer failing at compile time (knoguchi)
PIG-5290: User Cache upload contention can cause job failures (xkrogen via rohini)
PIG-5293: Suspicious code as missing `this' for a member (lifove via daijy)
PIG-5294: Spark unit tests are always run in spark1 mode (szita)
PIG-5277: Spark mode is writing nulls among tuples to the output (workaround) (szita)
PIG-5283: Configuration is not passed to SparkPigSplits on the backend (szita)
PIG-5284: Fix flakyness introduced by PIG-3655 (szita)
PIG-5278: Unit test failures because of PIG-5264 (nkollar via rohini)
PIG-5276: building "jar" should not call "clean" (nkollar via szita)
PIG-5246: Modify bin/pig about SPARK_HOME, SPARK_ASSEMBLY_JAR after upgrading spark to 2 (liyunzhang)
PIG-3655: BinStorage and InterStorage approach to record markers is broken (szita)
PIG-5274: TestEvalPipelineLocal#testSetLocationCalledInFE is failing in spark mode after PIG-5157 (nkollar via szita)
PIG-4767: Partition filter not pushed down when filter clause references variable from another load path (knoguchi)
PIG-5270: Typo in Pig Logging (FromAlaska49 via daijy)
PIG-5263: Using wildcard doesn't work with OrcStorage (satishsaley via rohini)
PIG-4548: Records Lost With Specific Combination of Commands and Streaming Function (knoguchi)
PIG-5262: Fix jdiff related issues: fail build upon error, correct xml character escaping (szita)
PIG-5225: Several unit tests are not annotated with @Test (nkollar via rohini)
Release 0.17.1 (unreleased)
BUG FIXES
PIG-5254: Hit Ctrl-D to quit grunt shell fail (wjqian via daijy)
Release 0.17.0
INCOMPATIBLE CHANGES
PIG-5085: Support FLATTEN of maps (szita via rohini)
PIG-4728: Compilation against hbase 1.x fails with hbase-hadoop1-compat not found (szita via rohini)
PIG-4897: Scope of param substitution for run/exec commands (knoguchi)
PIG-4923: Drop Hadoop 1.x support in Pig 0.17 (szita via rohini)
PIG-5109: Remove HadoopJobHistoryLoader (szita via daijy)
PIG-5067: Revisit union on numeric type and chararray to bytearray (knoguchi)
IMPROVEMENTS
PIG-5184: set command to view value of a variable (daijy via rohini)
PIG-4059: Pig On Spark
PIG-5188: Review pig-index.xml (szita)
PIG-4924: Translate failures.maxpercent MR setting to Tez Tez (rohini)
PIG-5236: json simple jar not included automatically with piggybank AvroStorage (satishsaley via rohini)
PIG-3103: make mockito a test dependency (instead of compile) (nkollar via szita)
PIG-3021: Split results missing records when there is null values in the column comparison (jeffjee617, cheolsoo via daijy)
PIG-5211: Optimize Nested Limited Sort (jins via daijy)
PIG-5214: search any substring in the input string (rainer-46 via daijy)
PIG-5210: Option to print MR/Tez plan before launching (ly16 via daijy)
PIG-5175: Upgrade jruby to 1.7.26 (daijy)
PIG-5110: Removing schema alias and :: coming from parent relation (szita via rohini)
PIG-5126. Add doc about pig in zeppelin (zjffdu)
PIG-5120: Let tez_local mode run without a jar file (knoguchi)
PIG-3851: Upgrade jline to 2.11 (daijy)
PIG-4963: Add a Bloom join (rohini)
PIG-3938: Add LoadCaster to EvalFunc (knoguchi)
PIG-5105: Tez unit tests failing with "Argument list too long" (rohini)
PIG-4901: To use Multistorage for each Group (szita via daijy)
PIG-5025: Fix flaky test failures in TestLoad.java (szita via rohini)
PIG-4939: QueryParserUtils.setHdfsServers(QueryParserUtils.java:104) should not be called for non-dfs
methods (szita via daijy)
PIG-5034: Remove org.apache.hadoop.hive.serde2.objectinspector.primitive package (nkollar via daijy)
PIG-5036: Remove biggish from e2e input dataset (daijy)
PIG-5053: Can't change HDFS user home in e2e tests using Ant (nkollar via daijy)
PIG-5037: Add api getDisplayString to PigStats (zjffdu)
PIG-5020: Give file location for loadcaster related warning and errors (knoguchi)
PIG-5027: Improve SAMPLE Scalar Expression Example (icook via knoguchi)
PIG-5023: Documentation for BagToTuple (icook via knoguchi)
PIG-5022: Error in TOKENIZE Example (icook vi knoguchi)
PIG-4931: Document IN operator (dbist13 vi daijy)
PIG-4852: Add accumulator implementation for MaxTupleBy1stField (szita via daijy)
PIG-4925: Support for passing the bloom filter to the Bloom UDF (rohini)
PIG-4911: Provide option to disable DAG recovery (rohini)
PIG-4906: Add Bigdecimal functions in Over function (cgalan via daijy)
PIG-2768: Fix org.apache.hadoop.conf.Configuration deprecation warnings for Hadoop 23 (rohini)
OPTIMIZATIONS
BUG FIXES
PIG-5248: Fix TestCombiner#testGroupByLimit after PigOnSpark merge (rohini)
PIG-5245: TestGrunt.testStopOnFailure is flaky (rohini)
PIG-5244: Several unit tests are failing in Tez mode after merging spark branch (nkollar via szita)
PIG-5207: BugFix e2e tests fail on spark (szita)
PIG-5194: HiveUDF fails with Spark exec type (szita)
PIG-5231: PigStorage with -schema may produce inconsistent outputs with more fields (knoguchi)
PIG-5224: Extra foreach from ColumnPrune preventing Accumulator usage (knoguchi)
PIG-5235: Typecast with as-clause fails for tuple/bag with an empty schema (knoguchi)
PIG-5238: Fix datetime related test issues after PIG-4748 (szita)
PIG-5185: Job name show "DefaultJobName" when running a Python script (daijy)
PIG-4748: DateTimeWritable forgets Chronology (szita)
PIG-5229: TestPigTest.testSpecificOrderOutput and testSpecificOrderOutputForAlias failing (knoguchi)
PIG-5226: PreprocessorContext.java can deadlock forever with large stderr (jtolar via knoguchi)
PIG-5221: More fs.default.name deprecation warnings (wattsinabox via daijy)
PIG-5222: Fix Junit Deprecations (wattsinabox via daijy)
PIG-5223: TestLimitVariable.testNestedLimitVariable1 and TestSecondarySortMR.testNestedLimitedSort failing (jins via daijy)
PIG-5209: Cross product on flatten(map) fails with ClassCastException (knoguchi)
PIG-5153: Change of behavior in FLATTEN(map) (szita via rohini)
PIG-4677: Display failure information on stop on failure (rohini)
PIG-5198: streaming job stuck with script failure when combined with split (knoguchi)
PIG-5183: We shall mention NATIVE instead of MAPREDUCE operator in document (daijy)
PIG-5182: ant docs target is broken by PIG-5110 (daijy)
PIG-5156: Duplicate jars in CLASSPATH when running test (daijy)
PIG-5173: Script with multiple splits fails with Invalid dag containing 0 vertices (rohini)
PIG-5159: Fix Pig not saving grunt history (szita via rohini)
PIG-5127: Test fail when running test-core-mrtez (daijy)
PIG-5083: CombinerPackager and LitePackager should not materialize bags (rohini)
PIG-5087: e2e Native3 failing after PIG-4923 (knoguchi)
PIG-5073: Skip e2e Limit_5 test for Tez (knoguchi)
PIG-5072: e2e Union_12 fails on typecast when oldpig=0.11 (knoguchi)
PIG-3891: FileBasedOutputSizeReader does not calculate size of files in sub-directories (nkollar via rohini)
PIG-5070: Allow Grunt e2e tests to run in parallel (knoguchi)
PIG-5061: ant test -Dtestcase=TestBoolean failing (knoguchi)
PIG-5066: e2e Jython_Checkin_2 failing due to floating precision difference (knoguchi)
PIG-5063: e2e IOErrors_1 on mapreduce is unstable (knoguchi)
PIG-5062: Allow Native e2e tests to run in parallel (knoguchi)
PIG-5060: TestPigRunner.testDisablePigCounters2 failing with tez (knoguchi)
PIG-5056: Fix AvroStorage writing enums (szita via daijy)
PIG-5055: Infinite loop with join by fixed index (knoguchi)
PIG-5049: Cleanup e2e tests turing_jython.conf (Daniel Dai)
PIG-5033: MultiQueryOptimizerTez creates bad plan with union, split and FRJoin (rohini,tmwoordruff via rohini)
PIG-4934: SET command does not work well with deprecated settings (szita via daijy)
PIG-4798: big integer literals fail to parse (szita via daijy)
PIG-5045: CSVExcelStorage Load: A Quoted Field with a Single Escaped Quote """" Becomes "" This should become " instead
(szita via daijy)
PIG-5026: Remove src/META-INF/services/org.apache.hadoop.mapreduce.protocol.ClientProtocolProvider (nkollar via daijy)
PIG-5041: RoundRobinPartitioner is not deterministic when order of input records change (rohini)
PIG-5040: Order by and CROSS partitioning is not deterministic due to usage of Random (rohini
PIG-5038: Pig Limit_2 e2e test failed with sort check (Konstantin_Harasov via rohini)
PIG-5039: TestTypeCheckingValidatorNewLP.TestTypeCheckingValidatorNewLP is failing (nkollar via knoguchi)
PIG-3087: Refactor TestLogicalPlanBuilder to be meaningful (szita via daijy)
PIG-4976: streaming job with store clause stuck if the script fail (daijy via knoguchi)
PIG-5035: killJob API does not work in Tez (zjffdu via rohini)
PIG-5032: Output record stats in Tez is wrong when there is split followed by union (rohini)
PIG-5031: Tez failing to compile when replicate join is done with a limit vertex on left (knoguchi)
PIG-5019: Pig generates tons of warnings for udf with enabled warnings aggregation (murshyd via rohini)
PIG-4974: A simple map reference fail to cast (knoguchi)
PIG-4975 Map schema shows "Type: null Uid: null" in explain (knoguchi)
PIG-4973: Bigdecimal divison fails (szita via daijy)
PIG-4967: NPE in PigJobControl.run() when job status is null (water via daijy)
PIG-4972: StreamingIO_1 fail on perl 5.22 (daijy)
PIG-4933: TestDataBagAccess.testBagConstantFlatten1/TestLogicalPlanBuilder.testQuery90 broken after PIG-2315 (knoguchi)
PIG-4965: Refactor test/perf/pigmix/bin/runpigmix.pl to delete the output of single test case
if we enable cleanup_after_test (kellyzly via daijy)
PIG-4966: Fix Pig compatibility with Hive 2.1.0 (zyork via daijy)
PIG-4935: TEZ_USE_CLUSTER_HADOOP_LIBS is always set to true (rohini)
PIG-4961: CROSS followed by LIMIT inside nested foreach drop data from result (rohini)
PIG-4960: Split followed by order by/skewed join is skewed in Tez (rohini)
PIG-4957: See "Received kill signal" message for a normal run after PIG-4921 (rohini)
PIG-4953: Predicate push-down will not run filters for single unary expressions (rdblue via daijy)
PIG-4940: Predicate push-down filtering unary expressions can be pushed (rdblue via daijy)
PIG-4938: [PiggyBank] XPath returns empty values when using aggregation method (nkollar via daijy)
PIG-4896: Param substitution ignored when redefined (knoguchi)
PIG-2315: Make as clause work in generate (daijy via knoguchi)
PIG-4921: Kill running jobs on InterruptedException (rohini)
PIG-4916: Pig on Tez fail to remove temporary HDFS files in some cases (daijy)
Release 0.16.1 - Unreleased
INCOMPATIBLE CHANGES
IMPROVEMENTS
PIG-4945: Update document for conflicting macro params (knoguchi via daijy)
OPTIMIZATIONS
BUG FIXES
PIG-5119: SkewedJoin_15 is unstable (daijy)
PIG-5118: Script fails with Invalid dag containing 0 vertices (rohini)
PIG-5111: e2e Utf8Test fails in local mode (rohini)
PIG-5112: Cleanup pig-template.xml (daijy)
PIG-5046: Skewed join with auto parallelism hangs when right input also has autoparallelism (rohini)
PIG-5108: AvroStorage on Tez with exception on nested records (daijy)
PIG-4260: SpillableMemoryManager.spill should revert spill on all exception (rohini)
PIG-4918: Pig on Tez cannot switch pig.temp.dir to another fs (daijy)
PIG-5078: Script fails with error - POStoreTez only accepts MROutput (rohini)
PIG-5088: HashValuePartitioner has skew when there is only map fields (rohini)
PIG-5043: Slowstart not applied in Tez with PARALLEL clause (rohini)
PIG-4930: Skewed Join Breaks On Empty Sampled Input When Key is From Map (nkollar via rohini)
PIG-3417: Job fails when skewed join is done on tuple key (nkollar via rohini)
PIG-5074: Build broken when hadoopversion=20 in branch 0.16 (szita via daijy)
PIG-5064: NPE in TestScriptUDF#testPythonBuiltinModuleImport1 when JAVA_HOME is not set (water via daijy)
PIG-5048: HiveUDTF fail if it is the first expression in projection (nkollar via daijy)
PIG-4951: Rename PIG_ATS_ENABLED constant (szita via daijy)
PIG-4947: LOAD with HBaseStorage using a mix of pure wildcards and prefixed wildcards results
in empty maps for the pure wildcarded column families (daijy)
PIG-4948: Pig on Tez AM use too much memory on a small cluster (daijy)
PIG-4949: Fix registering jar in S3 which was broken by PIG-4417 in Pig 0.16 (yangyishan0901m via daijy)
PIG-4950: Fix minor issues with running scripts in non-local FileSystems (petersla via daijy)
Release 0.16.0
INCOMPATIBLE CHANGES
IMPROVEMENTS
PIG-4719: Documentation for PIG-4704: Customizable Error Handling for Storers in Pig (daijy)
PIG-4714: Improve logging across multiple components with callerId (daijy)
PIG-4885: Turn off union optimizer if there is PARALLEL clause in union in Tez (rohini)
PIG-4894: Add API for StoreFunc to specify if they are write safe from two different vertices (rohini)
PIG-4884: Tez needs to use DistinctCombiner.Combine (rohini)
PIG-4874: Remove schema tuple reference overhead for replicate join hashmap (rohini)
PIG-4879: Pull latest version of joda-time (rohini)
PIG-4526: Make setting up the build environment easier (nielsbasjes via rohini)
PIG-4641: Print the instance of Object without using toString() (sandyridgeracer via rohini)
PIG-4455: Should use DependencyOrderWalker instead of DepthFirstWalker in MRPrinter (zjffdu via rohini)
PIG-4866: Do not serialize PigContext in configuration to the backend (rohini)
PIG-4547: Update Jython version to 2.7.0 (erwaman via daijy)
PIG-4862: POProject slow by creating StackTrace repeatedly (knoguchi)
PIG-4853: Fetch inputs before starting outputs (rohini)
PIG-4847: POPartialAgg processing and spill improvements (rohini)
PIG-4840: Do not turn off UnionOptimizer for unsupported storefuncs in case of no vertex groups (rohini)
PIG-4843: Turn off combiner in reducer vertex for Tez if bags are in combine plan (rohini)
PIG-4796: Authenticate with Kerberos using a keytab file (nielsbasjes via daijy)
PIG-4817: Bump HTTP Logparser to version 2.4 (nielsbasjes via daijy)
PIG-4811: Upgrade groovy library to address MethodClosure vulnerability (daijy)
PIG-4803: Improve performance of regex-based builtin functions (eyal via daijy)
PIG-4802: Autoparallelism should estimate less when there is combiner (rohini)
PIG-4761: Add more information to front end error messages (eyal via daijy)
PIG-4792: Do not add java and sun system properties to jobconf (rohini)
PIG-4787: Log JSONLoader exception while parsing records (rohini)
PIG-4763: Insufficient check for the number of arguments in runpigmix.pl (sekikn via rohini)
PIG-4411: Support for vertex level configuration like speculative execution (rohini)
PIG-4775: Better default values for shuffle bytes per reducer (rohini)
PIG-4753: Pigmix should have option to delete outputs after completing the tests (mitdesai via rohini)
PIG-4744: Honor tez.staging-dir setting in tez-site.xml (rohini via daijy)
PIG-4742: Document Pig's Register Artifact Command added in PIG-4417 (akshayrai09 via daijy)
PIG-4417: Pig's register command should support automatic fetching of jars from repo (akshayrai09 via daijy)
PIG-4713: Document Bloom UDF (gliptak via daijy)
PIG-3251: Bzip2TextInputFormat requires double the memory of maximum record size (knoguchi)
PIG-4704: Customizable Error Handling for Storers in Pig (siddhimehta via daijy)
PIG-4717: Update Apache HTTPD LogParser to latest version (nielsbasjes via daijy)
PIG-4468: Pig's jackson version conflicts with that of hadoop 2.6.0 or newer (zjffdu via daijy)
PIG-4708: Upgrade joda-time to 2.8 (rohini)
PIG-4697: Pig needs to serialize only part of the udfcontext for each vertex (rohini)
PIG-4702: Load once for sampling and partitioning in order by for certain LoadFuncs (rohini)
PIG-4699: Print Job stats information in Tez like mapreduce (rohini)
PIG-4554: Compress pig.script before encoding (sandyridgeracer via rohini)
PIG-4670: Embedded Python scripts still parse line by line (rohini)
PIG-4663: HBaseStorage should allow the MaxResultsPerColumnFamily limit to avoid memory or scan timeout issues (pmazak via rohini)
PIG-4673: Built In UDF - REPLACE_MULTI : For a given string, search and replace all occurrences
of search keys with replacement values (murali.k.h.rao@gmail.com via daijy)
PIG-4674: TOMAP should infer schema (daijy)
PIG-4676: Upgrade Hive to 1.2.1 (daijy)
PIG-4574: Eliminate identity vertex for order by and skewed join right after LOAD (rohini)
PIG-4365: TOP udf should implement Accumulator interface (eyal via rohini)
PIG-4570: Allow AvroStorage to use a class for the schema (pmazak via daijy)
PIG-4405: Adding 'map[]' support to mock/Storage (nielsbasjes via daijy)
PIG-4638: Allow TOMAP to accept dynamically sized input (nielsbasjes via daijy)
PIG-4639: Add better parser for Apache HTTPD access log (nielsbasjes via daijy)
BUG FIXES
PIG-4821: Pig chararray field with special UTF-8 chars as part of tuple join key produces wrong results in Tez (rohini)
PIG-4734: TOMAP schema inferring breaks some scripts in type checking for bincond (daijy)
PIG-4786: CROSS will not work correctly with Grace Parallelism (daijy)
PIG-3227: SearchEngineExtractor does not work for bing (dannyant via daijy)
PIG-4902: Fix UT failures on 0.16 branch: TestTezGraceParallelism, TestPigScriptParser (daijy)
PIG-4909: PigStorage incompatible with commons-cli-1.3 (knoguchi)
PIG-4908: JythonFunction refers to Oozie launcher script absolute path (rohini)
PIG-4905: Input of empty dir does not produce empty output file in Tez (rohini)
PIG-4576: Nightly test HCat_DDL_2 fails with TDE ON (nmaheshwari via daijy)
PIG-4873: InputSplit.getLocations return null and result a NPE in Pig (daijy)
PIG-4895: User UDFs relying on mapreduce.job.maps broken in Tez (rohini)
PIG-4883: MapKeyType of splitter was set wrongly in specific multiquery case (kellyzly via rohini)
PIG-4887: Parameter substitution skipped with glob on register (knoguchi)
PIG-4889: Replacing backslash fails as lexical error (knoguchi)
PIG-4880: Overlapping of parameter substitution names inside&outside a macro fails with NPE (knoguchi)
PIG-4881: TestBuiltin.testUniqueID failing on hadoop-1.x (knoguchi)
PIG-4888: Line number off when reporting syntax error inside a macro (knoguchi)
PIG-3772: Syntax error when casting an inner schema of a bag and line break involved (ssvinarchukhorton via knoguchi)
PIG-4892: removing /tmp/output before UT (daijy)
PIG-4882: Remove hardcoded groovy.grape.report.downloads=true from DownloadResolver (erwaman via daijy)
PIG-4581: thread safe issue in NodeIdGenerator (rcatherinot via rohini)
PIG-4878: Fix issues from PIG-4847 (rohini)
PIG-4877: LogFormat parser fails test (nielsbasjes via daijy)
PIG-4860: Loading data using OrcStorage() accepts only default FileSystem path (beriaanirudh via rohini)
PIG-4868: Low values for bytes.per.reducer configured by user not honored in Tez for inputs (rohini)
PIG-4869: Removing unwanted configuration in Tez broke ConfiguredFailoverProxyProvider (rohini)
PIG-4867: -stop_on_failure does not work with Tez (rohini)
PIG-4844: Tez AM runs out of memory when vertex has high number of outputs (rohini)
PIG-4851: Null not padded when input has less fields than declared schema for some loader (rohini)
PIG-4850: Registered jars do not use submit replication (rdblue via cheolsoo)
PIG-4845: Parallel instantiation of classes in Tez cause tasks to fail (rohini)
PIG-4841: Inline-op with schema declaration fails with syntax error (knoguchi)
PIG-4832: Fix TestPrumeColumn NPE failure (kellyzly via daijy)
PIG-4833 TestBuiltin.testURIWithCurlyBrace in TEZ failing after PIG-4819 (knoguchi)
PIG-4819: RANDOM() udf can lead to missing or redundant records (knoguchi)
PIG-4816: Read a null scalar causing a Tez failure (daijy)
PIG-4818: Single quote inside comment in GENERATE is not being ignored (knoguchi)
PIG-4814: AvroStorage does not take namenode HA as part of schema file url (daijy)
PIG-4812: Register Groovy UDF with relative path does not work (daijy)
PIG-4806: UDFContext can be reset in the middle during Tez input and output initialization (rohini)
PIG-4808: PluckTuple overwrites regex if used more than once in the same script (eyal via daijy)
PIG-4801: Provide backward compatibility with mapreduce mapred.task settings (rohini)
PIG-4759: Fix Classresolution_1 e2e failure (rohini)
PIG-4800: EvalFunc.getCacheFiles() fails for different namenode (rohini)
PIG-4790: Join after union fail due to UnionOptimizer (rohini)
PIG-4686: Backend code should not call AvroStorageUtils.getPaths (mitdesai via rohini)
PIG-4795: Flushing ObjectOutputStream before calling toByteArray on the underlying ByteArrayOutputStream (emopers via daijy)
PIG-4690: Union with self replicate join will fail in Tez (rohini)
PIG-4791: PORelationToExprProject filters records instead of returning emptybag in nested foreach after union (rohini)
PIG-4779: testBZ2Concatenation[pig.bzip.use.hadoop.inputformat = true] failing due to successful read (knoguchi)
PIG-4587: Applying isFirstReduceOfKey for Skewed left outer join skips records (rohini)
PIG-4782: OutOfMemoryError: GC overhead limit exceeded with POPartialAgg (rohini)
PIG-4737: Check and fix clone implementation for all classes extending PhysicalOperator (rohini)
PIG-4770: OOM with POPartialAgg in some cases (rohini)
PIG-4773: [Pig on Tez] Secondary key descending sort in nested foreach after union does ascending instead (rohini)
PIG-4774: Fix NPE in SUM,AVG,MIN,MAX UDFs for null bag input (rohini)
PIG-4757: Job stats on successfully read/output records wrong with multiple inputs/outputs (rohini)
PIG-4769: UnionOptimizer hits errors when merging vertex group into split (rohini)
PIG-4768: EvalFunc reporter is null in Tez (rohini)
PIG-4760: TezDAGStats.convertToHadoopCounters is not used, but impose MR counter limit (daijy)
PIG-4755: Typo in runpigmix script (mitdesai via daijy)
PIG-4736: Removing empty keys in UDFContext broke one LoadFunc (rohini)
PIG-4733: Avoid NullPointerException in JVMReuseImpl for builtin classes (rohini)
PIG-4722: [Pig on Tez] NPE while running Combiner (rohini)
PIG-4730: [Pig on Tez] Total parallelism estimation does not account load parallelism (rohini)
PIG-4689: CSV Writes incorrect header if two CSV files are created in one script (nielsbasjes via daijy)
PIG-4727: Incorrect types table for AVG in docs (nsmith via daijy)
PIG-4725: Typo in FrontendException messages "Incompatable" (nsmith via daijy)
PIG-4721: IsEmpty documentation error (nsmith via daijy)
PIG-4712: [Pig on Tez] NPE in Bloom UDF after Union (rohini)
PIG-4707: [Pig on Tez] Streaming job hangs with pig.exec.mapPartAgg=true (rohini)
PIG-4703: TezOperator.stores shall not ship to backend (daijy)
PIG-4696: Empty map returned by a streaming_python udf wrongly contains a null key (cheolsoo)
PIG-4691: [Pig on Tez] Support for whitelisting storefuncs for union optimization (rohini)
PIG-3957: Refactor out resetting input key in TezDagBuilder (rohini)
PIG-4688: Limit followed by POPartialAgg can give empty or partial results in Tez (rohini)
PIG-4635: NPE while running pig script in tez mode (daijy)
PIG-4683: Nested order is broken after PIG-3591 in some cases (daijy)
PIG-4679: Performance degradation due to InputSizeReducerEstimator since PIG-3754 (daijy)
PIG-4315: MergeJoin or Split followed by order by gives NPE in Tez (rohini)
PIG-4654: Reduce tez memory.reserve-fraction and clear spillables for better memory utilization (rohini)
PIG-4628: Pig 0.14 job with order by fails in mapreduce mode with Oozie (knoguchi)
PIG-4651: Optimize NullablePartitionWritable serialization for skewed join (rohini)
PIG-4627: [Pig on Tez] Self join does not handle null values correctly (rohini)
PIG-4644: PORelationToExprProject.clone() is broken (erwaman via rohini)
PIG-4650: ant mvn-deploy target is broken (daijy)
PIG-4649: [Pig on Tez] Union followed by HCatStorer misses some data (rohini)
PIG-4636: Occurred spelled incorrectly in error message for Launcher and POMergeCogroup (stevenmz via daijy)
PIG-4624: Error on ORC empty file without schema (daijy)
PIG-3622: Allow casting bytearray fields to bytearray type (redisliu via daijy)
PIG-4618: When use tez as the engine , set pig.user.cache.enabled=true do not take effect (wisgood via rohini)
PIG-4533: Document error: Pig does support concatenated gz file (xhudik via daijy)
PIG-4578: ToDateISO should support optional ' ' space variant used by JDBC (michaelthoward via daijy)
Release 0.15.0
INCOMPATIBLE CHANGES
IMPROVEMENTS
PIG-4560: Pig 0.15.0 Documentation (daijy)
PIG-4429: Add Pig alias information and Pig script to the DAG view in Tez UI (daijy)
PIG-3994: Implement getting backend exception for Tez (rohini)
PIG-4563: Upgrade to released Tez 0.7.0 (daijy)
PIG-4525: Clarify "Scalar has more than one row in the output." (Niels Basjes via gates)
PIG-4511: Add columns to prune from PluckTuple (jbabcock via cheolsoo)
PIG-4434: Improve auto-parallelism for tez (daijy)
PIG-4495: Better multi-query planning in case of multiple edges (rohini)
PIG-3294: Allow Pig use Hive UDFs (daijy)
PIG-4476: Fix logging in AvroStorage* classes and SchemaTuple class (rdsr via rohini)
PIG-4458: Support UDFs in a FOREACH Before a Merge Join (wattsinabox via daijy)
PIG-4454: Upgrade tez to 0.6.0 (daijy)
PIG-4451: Log partition and predicate filter pushdown information and fix optimizer looping (rohini)
PIG-4430: Pig should support reading log4j.properties file from classpath as well (rdsr via daijy)
PIG-4407: Allow specifying a replication factor for jarcache (jira.shegalov via rohini)
PIG-4401: Add pattern matching to PluckTuple (cheolsoo)
PIG-2692: Make the Pig unit faciliities more generalizable and update javadocs (razsapps via daijy)
PIG-4379: Make RoundRobinPartitioner public (daijy)
PIG-4378: Better way to fix tez local mode test hanging (daijy)
PIG-4358: Add test cases for utf8 chinese in Pig (nmaheshwari via daijy)
PIG-4370: HBaseStorage should support delete markers (bridiver via daijy)
PIG-4360: HBaseStorage should support setting the timestamp field (bridiver via daijy)
PIG-4337: Split Types and MultiQuery e2e tests into multiple groups (rohini)
PIG-4333: Split BigData tests into multiple groups (rohini)
BUG FIXES
PIG-4592: Pig 0.15 stopped working with Hadoop 1.x (daijy)
PIG-4580: Fix TestTezAutoParallelism.testSkewedJoinIncreaseParallelism test failure (daijy)
PIG-4571: TestPigRunner.testGetHadoopCounters fail on Windows (daijy)
PIG-4541: Skewed full outer join does not return records if any relation is empty. Outer join does not
return any record if left relation is empty (daijy)
PIG-4564: Pig can deadlock in POPartialAgg if there is a bag (rohini via daijy)
PIG-4569: Fix e2e test Rank_1 failure (rohini)
PIG-4490: MIN/MAX builtin UDFs return wrong results when accumulating for strings (xplenty via rohini)
PIG-4418: NullPointerException in JVMReuseImpl (rohini)
PIG-4562: Typo in DataType.toDateTime (daijy)
PIG-4559: Fix several new tez e2e test failures (daijy)
PIG-4506: binstorage fails to write biginteger (ssavvides via daijy)
PIG-4556: Local mode is broken in some case by PIG-4247 (daijy)
PIG-4523: Tez engine should use tez config rather than mr config whenever possible (daijy)
PIG-4452: Embedded SQL using "SQL" instead of "sql" fails with string index out of range: -1 error (daijy)
PIG-4543: TestEvalPipelineLocal.testRankWithEmptyReduce fail on Hadoop 1 (daijy)
PIG-4544: Upgrade Hbase to 0.98.12 (daijy)
PIG-4481: e2e tests ComputeSpec_1, ComputeSpec_2 and StreamingPerformance_3 produce different result on Windows (daijy)
PIG-4496: Fix CBZip2InputStream to close underlying stream (petersla via daijy)
PIG-4528: Fix a typo in src/docs/src/documentation/content/xdocs/basic.xml (namusyaka via daijy)
PIG-4532: Pig Documentation contains typo for AvroStorage (fredericschmaljohann via daijy)
PIG-4377: Skewed outer join produce wrong result in some cases (daijy)
PIG-4538: Pig script fail with CNF in follow up MR job (daijy)
PIG-4537: Fix unit test failure introduced by TEZ-2392: TestCollectedGroup, TestLimitVariable, TestMapSideCogroup, etc (daijy)
PIG-4530: StackOverflow in TestMultiQueryLocal running under hadoop20 (nielsbasjes via rohini)
PIG-4529: Pig on tez hit counter limit imposed by MR (daijy)
PIG-4524: Pig Minicluster unit tests broken by TEZ-2333 (daijy)
PIG-4527: NON-ASCII Characters in Javadoc break 'ant docs' (nielsbasjes via daijy)
PIG-4494: Pig's htrace version conflicts with that of hadoop 2.6.0 (daijy)
PIG-4519: Correct link to Contribute page (gliptak via daijy)