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From ss...@apache.org
Subject [1/2] tez git commit: TEZ-3660. Remove CHANGES.txt. (sseth)
Date Tue, 14 Mar 2017 03:57:50 GMT
Repository: tez
Updated Branches:
  refs/heads/branch-0.8 18178ceaa -> 41433a9fe


http://git-wip-us.apache.org/repos/asf/tez/blob/41433a9f/CHANGES.txt
----------------------------------------------------------------------
diff --git a/CHANGES.txt b/CHANGES.txt
deleted file mode 100644
index 31e3a21..0000000
--- a/CHANGES.txt
+++ /dev/null
@@ -1,2095 +0,0 @@
-Apache Tez Change Log
-=====================
-
-Release 0.8.6: Unreleased
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-TEZ-3632. Tez Task attempt listing can hang if log link is null
-
-
-Release 0.8.5: 2016-03-13
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-
-  TEZ-3644. Cleanup container list stored in AMNode.
-  TEZ-3643. Long running AMs can go out of memory due to retained AMContainer instances.
-  TEZ-3624. Split multiple calls on the same line in TaskCommunicatorContextImpl.
-  TEZ-3550. Provide access to sessionId/dagId via DagClient.
-  TEZ-3609. Improve ATSv15 performance for DAG entities read calls.
-  TEZ-3244. Allow overlap of input and output memory when they are not concurrent
-  TEZ-3601. Add another HistoryLogLevel to suppress TaskAttempts at specific levels
-  TEZ-3582. Exception swallowed in PipelinedSorter causing incorrect results.
-  TEZ-3462. Task attempt failure during container shutdown loses useful container diagnostics
-  TEZ-3574. Container reuse won't pickup extra dag level local resource.
-  TEZ-3566. Avoid caching fs isntances in TokenCache after a point.
-  TEZ-3568. Update SecurityUtils configuration to pick user provided configuration.
-  TEZ-3559. TEZ_LIB_URIS doesn't work with schemes different than the defaultFS
-  TEZ-3549. TaskAttemptImpl does not initialize TEZ_TASK_PROGRESS_STUCK_INTERVAL_MS correctly
-  TEZ-3537. ArrayIndexOutOfBoundsException with empty environment variables/Port YARN-3768 to Tez
-  TEZ-3507. Task logs link when editing url from one task to another.
-  TEZ-3536. NPE in WebUIService start when host resolution fails.
-  TEZ-3534. Differentiate thread names on Fetchers, minor changes to shuffle shutdown code.
-  TEZ-3491. Tez job can hang due to container priority inversion.
-  TEZ-3533. ShuffleScheduler should shutdown threadpool on exit.
-  TEZ-3493. DAG submit timeout cannot be set to a month
-  TEZ-3505. Move license to the file header for TezBytesWritableSerialization
-  TEZ-3486. COMBINE_OUTPUT_RECORDS/COMBINE_INPUT_RECORDS are not correct
-  TEZ-3097. Flaky test: TestCommit.testDAGCommitStartedEventFail_OnDAGSuccess.
-  TEZ-3487. Improvements in travis yml file to get builds to work.
-  TEZ-3483. Create basic travis yml file for Tez.
-  TEZ-3437. Improve synchronization and the progress report behavior for Inputs from TEZ-3317.
-  TEZ-3317. Speculative execution starts too early due to 0 progress.
-  TEZ-3452. Auto-reduce parallelism calculation can overflow with large inputs
-  TEZ-3439. Tez joinvalidate fails when first input argument size is bigger than the second.
-  TEZ-3464. Fix findbugs warnings in tez-dag mainLoop
-  TEZ-3330. Propagate additional config parameters when running MR jobs via Tez.
-  TEZ-3335. DAG client thinks app is still running when app status is null
-  TEZ-3460. Fix precommit release audit warning
-  TEZ-3368. NPE in DelayedContainerManager
-  TEZ-3440. Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs
-  TEZ-3429. Set reconfigureDoneTime on VertexConfigurationDoneEvent properly.
-  TEZ-3000. Fix TestContainerReuse.
-  TEZ-3436. Check input and output count before start in MapProcessor.
-  TEZ-3426. Second AM attempt launched for session mode and recovery disabled for certain cases
-  TEZ-3326. Display JVM system properties in AM and task logs.
-  TEZ-3009. Errors that occur during container task acquisition are not logged.
-  TEZ-2852. TestVertexImpl fails due to race in AsyncDispatcher.
-  TEZ-3413. ConcurrentModificationException in HistoryEventTimelineConversion for AppLaunchedEvent.
-  TEZ-3352. MRInputHelpers getStringProperty() should not fail if property value is null.
-  TEZ-3409. Log dagId along with other information when submitting a dag.
-  TEZ-3384. Fix TestATSV15HistoryLoggingService::testDAGGroupingGroupingEnabled unit test.
-  TEZ-3376. Fix groupId generation to account for dagId starting with 1.
-  TEZ-3359. Add granular log levels for HistoryLoggingService.
-  TEZ-3374. Change TEZ_HISTORY_LOGGING_TIMELINE_NUM_DAGS_PER_GROUP conf key name.
-  TEZ-3358. Support using the same TimelineGroupId for multiple DAGs.
-  TEZ-3357. Change TimelineCachePlugin to handle DAG grouping.
-  TEZ-3348. NullPointerException in Tez MROutput while trying to write using Parquet's DeprecatedParquetOutputFormat.
-  TEZ-3356. Fix initializing of stats when custom ShuffleVertexManager is used.
-  TEZ-3329. Tez ATS data is incomplete for a vertex which fails or gets killed before initialization.
-  TEZ-3235. Modify Example TestOrderedWordCount job to test the IPC limit for large dag plans.
-  TEZ-3337. Do not log empty fields of TaskAttemptFinishedEvent to avoid confusion.
-  TEZ-1248. Reduce slow-start should special case 1 reducer runs.
-  TEZ-3370. Tez UI: Display the log link as N/A if the app does not provide a log link
-  TEZ-3398. Tez UI: Bread crumb link to Application from Application details dag/configuration tab is broken
-  TEZ-3433. Tez UI: Searching using wrong ID causes error in all DAGs page
-  TEZ-3419. Tez UI: Applications page shows error, for users with only DAG level ACL permission
-  TEZ-3347. Tez UI: Vertex UI throws an error while getting vertexProgress for a killed Vertex
-  TEZ-3546. Tez UI: On sorting asc - Not Available must be at the top
-
-Release 0.8.4: 2016-07-08
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-
-  TEZ-3323. Update licese and notice for xml-apis jar. Also update year in notice to 2016.
-  TEZ-3223. Support a NullHistoryLogger to disable history logging if needed.
-  TEZ-3286. Allow clients to set processor reserved memory per vertex (instead of per container).
-  TEZ-3293. Fetch failures can cause a shuffle hang waiting for memory merge that never starts.
-  TEZ-3314. Double counting input bytes in MultiMRInput.
-  TEZ-3308. Add counters to capture input split length.
-  TEZ-3302. Add a version of processorContext.waitForAllInputsReady and waitForAnyInputReady with a timeout.
-  TEZ-3291. Optimize splits grouping when locality information is not available.
-  TEZ-3305. TestAnalyzer fails on Hadoop 2.7.
-  TEZ-3304. TestHistoryParser fails with Hadoop 2.7.
-  TEZ-3296. Tez job can hang if two vertices at the same root distance have different task requirements
-  TEZ-3294. DAG.createDag() does not clear local state on repeat calls.
-  TEZ-3297. Deadlock scenario in AM during ShuffleVertexManager auto reduce.
-  TEZ-3296. Tez fails to compile against hadoop 2.8 after MAPREDUCE-5870
-  TEZ-3290. Set full task attempt id string in MRInput configuration object.
-  TEZ-3278. Hide Swimlane from Tez UI
-  TEZ-3280. LOG MRInputHelpers split generation message as INFO
-  TEZ-909.  Provide support for application tags
-  TEZ-2769. TEZ-UI Hive SQL is only displayed to line 11
-  TEZ-3257. Fix flaky test TestUnorderedPartitionedKVWriter.
-  TEZ-3240. Improvements to tez.lib.uris to allow for multiple tarballs and mixing tarballs and jars.
-  TEZ-3237. Corrupted shuffle transfers to disk are not detected during transfer
-  TEZ-3246. Improve diagnostics when DAG killed by user
-  TEZ-3258. Jvm Checker does not ignore DisableExplicitGC when checking JVM GC options.
-  TEZ-3256. [Backport HADOOP-11032] Remove Guava Stopwatch dependency
-  TEZ-2342. Reduce bytearray copy with TezEvent Serialization and deserialization
-  TEZ-3251. Allow ability to add custom counters to TaskRunner2Callable.
-  TEZ-3250. TezTaskRunner2 should accept ExecutorService.
-  TEZ-3193. Deadlock in AM during task commit request.
-  TEZ-3203. DAG hangs when one of the upstream vertices has zero tasks
-  TEZ-3219. Allow service plugins to define log locations link for remotely run task attempts.
-  TEZ-3224. User payload is not initialized before creating vertex manager plugin.
-  TEZ-3226. Tez UI 2: All DAGs UX improvements.
-  TEZ-3077. TezClient.waitTillReady should support timeout.
-  TEZ-3202. Reduce the memory need for jobs with high number of segments
-  TEZ-3165. Allow Inputs/Outputs to be initialized serially, control processor initialization relative to Inputs/Outputs
-  TEZ-3214. Tez UI 2: Pagination in All DAGs
-  TEZ-3210. Tez UI 2: license should account for numeral, more-js, loader.js , etc
-  TEZ-3087. Tez UI 2: Add log links in task & attempt details page
-  TEZ-3146. Tez UI 2: CSS & JS assets in the UI must be minified
-  TEZ-3259. Tez UI: Build issue - File saver package is not working well with bower
-  TEZ-3262. Tez UI : zip.js is not having a bower friendly versioning system
-  TEZ-3281. Tez UI: Swimlane improvements
-  TEZ-3318. Tez UI: Polling is not restarted after RM recovery
-
-Release 0.8.3: 2016-04-14 
-
-INCOMPATIBLE CHANGES
-  TEZ-3180. Update master docs to declare hadoop-2.6.x as a minimum requirement.
-  TEZ-3029. Add an onError method to service plugin contexts.
-  TEZ-3120. Remove TaskCommContext.getCurrentDagName, Identifier.
-  TEZ-3183. Change the taskFailed method on plugin contexts to specify the type of failure.
-  TEZ-3199. Rename getCredentials in TaskCommunicatorContext to be less confusing.
-
-ALL CHANGES:
-  TEZ-3188. Move tez.submit.hosts out of TezConfiguration to TezConfigurationConstants.
-  TEZ-3194. Tez UI: Swimlane improve in-progress experience.
-  TEZ-3196. java.lang.InternalError from decompression codec is fatal to a task during shuffle
-  TEZ-3161. Allow task to report different kinds of errors - fatal / kill.
-  TEZ-3177. Non-DAG events should use the session domain or no domain if the data does not need protection.
-  TEZ-3192. IFile#checkState creating unnecessary objects though auto-boxing
-  TEZ-3173. Update Tez AM REST APIs for more information for each vertex.
-  TEZ-3108. Add support for external services to local mode.
-  TEZ-3189. Pre-warm dags should not be counted in submitted dags count by DAGAppMaster.
-  TEZ-2967. Vertex start time should be that of first task start time in UI
-  TEZ-3175. Add tez client submit host
-  TEZ-3166. Fix a few cases where counters aren't fully updated and sent for failed tasks.
-  TEZ-2958. Recovered TA, whose commit cannot be recovered, should move to killed state
-  TEZ-2936. Create ATS implementation that enables support for YARN-4265 (ATS v1.5)
-  TEZ-3148. Invalid event TA_TEZ_EVENT_UPDATE on TaskAttempt.
-  TEZ-3105. TezMxBeanResourceCalculator does not work on IBM JDK 7 or 8 causing Tez failures.
-  TEZ-3155. Support a way to submit DAGs to a session where the DAG plan exceeds hadoop ipc limits.
-  TEZ-2863. Container, node, and logs not available in UI for tasks that fail to launch
-  TEZ-3140. Reduce AM memory usage during serialization
-  TEZ-2756. MergeManager close should not try merging files on close if invoked after a shuffle exception.
-  TEZ-3156. Tez client keeps trying to talk to RM even if RM does not know about the application.
-  TEZ-3115. Shuffle string handling adds significant memory overhead
-  TEZ-3151. Expose DAG credentials to plugins.
-  TEZ-3149. Tez-tools: Add username in DagInfo.
-  TEZ-2988. DAGAppMaster::shutdownTezAM should return with a no-op if it has been invoked earlier.
-  TEZ-3147. Intermediate mem-to-mem: Fix early exit when only one segment can fit into memory
-  TEZ-3141. mapreduce.task.timeout is not translated to container heartbeat timeout
-  TEZ-3128. Avoid stopping containers on the AM shutdown thread.
-  TEZ-3129. Tez task and task attempt UI needs application fails with NotFoundException
-  TEZ-3114. Shuffle OOM due to EventMetaData flood
-  TEZ-1911. MergeManager's unconditionalReserve() should check for memory limits before allocating.
-  TEZ-3102. Fetch failure of a speculated task causes job hang
-  TEZ-3124. Running task hangs due to missing event to initialize input in recovery.
-  TEZ-3135. tez-ext-service-tests, tez-plugins/tez-yarn-timeline-history and tez-tools/tez-javadoc-tools missing dependencies.
-  TEZ-3134. tez-dag should depend on commons-collections4.
-  TEZ-3126. Log reason for not reducing parallelism
-  TEZ-3131. Support a way to override test_root_dir for FaultToleranceTestRunner.
-  TEZ-3067. Links to tez configs documentation should be bubbled up to top-level release page.
-  TEZ-3123. Containers can get re-used even with conflicting local resources.
-  TEZ-3117. Deadlock in Edge and Vertex code
-  TEZ-3103. Shuffle can hang when memory to memory merging enabled
-  TEZ-3107. tez-tools: Log warn msgs in case ATS has wrong values (e.g startTime > finishTime).
-  TEZ-3104. Tez fails on Bzip2 intermediate output format on hadoop 2.7.1 and earlier
-  TEZ-3090. MRInput should make dagIdentifier, vertexIdentifier, etc available to the InputFormat jobConf.
-  TEZ-3093. CriticalPathAnalyzer should be accessible via zeppelin.
-  TEZ-3089. TaskConcurrencyAnalyzer can return negative task count with very large jobs.
-  TEZ-2307. Possible wrong error message when submitting new dag
-  TEZ-2974. Tez tools: TFileRecordReader in tez-tools should support reading >2 GB tfiles.
-  TEZ-3081. Update tez website for trademarks feedback.
-  TEZ-3076. Reduce merge memory overhead to support large number of in-memory mapoutputs
-  TEZ-3079. Fix tez-tfile parser documentation.
-  TEZ-3066. TaskAttemptFinishedEvent ConcurrentModificationException in recovery or history logging services.
-  TEZ-3036. Tez AM can hang on startup with no indication of error
-  TEZ-3052. Task internal error due to Invalid event: T_ATTEMPT_FAILED at FAILED
-  TEZ-2594. Fix LICENSE for missing entries for full and minimal tarballs.
-  TEZ-3053. Containers timeout if they do not receive a task within the container timeout interval.
-  TEZ-2898. tez tools : swimlanes.py is broken.
-  TEZ-2937. Can Processor.close() be called after closing inputs and outputs?
-  TEZ-3037. History URL should be set regardless of which history logging service is enabled.
-  TEZ-3032. DAG start time getting logged using system time instead of recorded time in startTime field.
-  TEZ-3101. Tez UI: Task attempt log link doesn't have the correct protocol.
-  TEZ-3143. Tez UI 2: Make the build faster
-  TEZ-3160. Tez UI 2: Swimlane - Create swimlane page & component (sree)
-  TEZ-3170. Tez UI 2: Swimlane - Display computed events, event bars & dependencies (sree)
-  TEZ-3152. Tez UI 2: Build fails when run by multiple users or when node_modules is old (sree)
-  TEZ-3171. Tez UI 2: Swimlane - Tooltip, zoom & redirection (sree)
-  TEZ-3172. Tez UI: Swimlane - In progress & Shadow (sree)
-  TEZ-3201. Tez-UI build broken (sree)
-
-TEZ-2980: Tez UI 2 - Umbrella:
-  TEZ-2982. Tez UI: Create tez-ui2 directory and get a basic dummy page working in ember 2.2
-  TEZ-3016. Tez UI 2: Make bower dependency silent
-  TEZ-2983. Tez UI 2: Get ember initializers functional
-  TEZ-3018. Tez UI 2: Add config.env
-  TEZ-3019. Tez UI 2: Replace BaseURL with Host
-  TEZ-2984. Tez UI 2: Create abstract classes
-  TEZ-3020. Tez UI 2: Add entity blueprint
-  TEZ-2985. Tez UI 2: Create loader and entity classes
-  TEZ-3021. Tez UI 2: Add env service & initializer
-  TEZ-3023. Tez UI 2: Abstract adapter and route
-  TEZ-3022. Tez UI 2: Add serializer & adapter for timeline server
-  TEZ-3026. Tez UI 2: Add adapters for RM & AM
-  TEZ-3027. Tez UI 2: Add header and footer elements
-  TEZ-2986. Tez UI 2: Implement All DAGs page
-  TEZ-3038. Tez UI 2: Create DAG details page
-  TEZ-3039. Tez UI 2: Create all sub-pages for DAG
-  TEZ-3040. Tez UI 2: Create Vertex details page & sub tables
-  TEZ-3041. Tez UI 2: Create Task & Attempt details page with sub tables
-  TEZ-3045. Tez UI 2: Create application details page with DAGs tab
-  TEZ-3048. Tez UI 2: Make PhantomJS a local dependency for build tests
-  TEZ-3042. Tez UI 2: Create Counters pages
-  TEZ-3043. Tez UI 2: Create configurations page
-  TEZ-3049. Tez UI 2: Add column selector
-  TEZ-3050. Tez UI 2: Add counter columns
-  TEZ-3064. Tez UI 2: Add All DAGs filters
-  TEZ-3059. Tez UI 2: Make refresh functional
-  TEZ-3070. Tez UI 2: Jenkins build is failing
-  TEZ-3060. Tez UI 2: Activate auto-refresh
-  TEZ-3061. Tez UI 2: Display in-progress vertex table in DAG details
-  TEZ-3069. Tez UI 2: Make error bar fully functional
-  TEZ-3062. Tez UI 2: Integrate graphical view
-  TEZ-3058. Tez UI 2: Add download data functionality
-  TEZ-3084. Tez UI 2: Display caller type and info
-  TEZ-3080. Tez UI 2: Ensure UI 2 is in-line with UI 1
-  TEZ-3092. Tez UI 2: Tuneups & Improvements
-  TEZ-3095. Tez UI 2: Tuneups & Improvements
-  TEZ-3088. Tez UI 2: Licenses of all the packages used by Tez Ui must be documented
-  TEZ-2916. Tez UI 2: Show counts of running tasks on the DAG visualization page
-  TEZ-3125. Tez UI 2: All auto-refresh pages refresh multiple times shortly after application complete
-  TEZ-3127. Tez UI 2: Release audit is failing
-
-Release 0.8.2: 2016-01-19
-
-INCOMPATIBLE CHANGES
-  TEZ-3024. Move TaskCommunicator to correct package.
-  TEZ-2679. Admin forms of launch env settings
-  TEZ-2948. Stop using dagName in the dagComplete notification to TaskCommunicators.
-  TEZ-2949. Allow duplicate dag names within session for Tez.
-  TEZ-604. Revert temporary changes made in TEZ-603 to kill the provided tez session, if running a MapReduce job.
-  TEZ-2972. Avoid task rescheduling when a node turns unhealthy
-
-ALL CHANGES:
-  TEZ-2669. Propagation of errors from plugins to the AM for error reporting.
-  TEZ-2978. Add an option to allow the SplitGrouper to generate node local only groups.
-  TEZ-2129. Task and Attempt views should contain links to the logs
-  TEZ-3025. InputInitializer creation should use the dag ugi.
-  TEZ-3017. HistoryACLManager does not have a close method for cleanup
-  TEZ-2914. Ability to limit vertex concurrency
-  TEZ-3011. Link Vertex Name in Dag Tasks/Task Attempts to Vertex
-  TEZ-3006. Remove unused import in TestHistoryParser.
-  TEZ-2910. Set caller context for tracing ( integrate with HDFS-9184 ).
-  TEZ-2976. Recovery fails when InputDescriptor is changed during input initialization.
-  TEZ-2997. Tez UI: Support searches by CallerContext ID for DAGs
-  TEZ-2996. TestAnalyzer fails in trunk after recovery redesign
-  TEZ-2987. TestVertexImpl.testTez2684 fails
-  TEZ-2995. Timeline primary filter should only be on callerId and not type.
-  TEZ-2994. LocalProgress in tez-runtime-library missing Apache header, rat check warnings from the new licenses after TEZ-2592 merge.
-  TEZ-2977. Make HadoopShim selection be overridable for distro-specific implementations.
-  TEZ-2472. Change slf4j version to 1.7.10.
-  TEZ-2920. org.apache.tez.client.TestTezClient.testStopRetriesUntilTimeout is flaky.
-  TEZ-2824. Add javadocs for Vertex.setConf and DAG.setConf.
-  TEZ-2911. Null location Strings can cause problems with GroupedSplit serialization.
-  TEZ-2990. Change test-patch.sh to run through all tests, despite failures in upstream modules
-  TEZ-2798. NPE when executing TestMemoryWithEvents::testMemoryScatterGather.
-  TEZ-2963. RecoveryService#handleSummaryEvent exception with HDFS transparent encryption + kerberos authentication.
-  TEZ-2966. Tez does not honor mapreduce.task.timeout
-  TEZ-2979. FlakyTest: org.apache.tez.history.TestHistoryParser.
-  TEZ-1491. Tez reducer-side merge's counter update is slow.
-  TEZ-2943. Change shuffle vertex manager to use per vertex data for auto
-  reduce and slow start
-  TEZ-2346. TEZ-UI: Lazy load other info / counter data
-  TEZ-2975. Bump up apache commons dependency.
-  TEZ-2970. Re-localization in TezChild does not use correct UGI.
-  TEZ-2968. Counter limits exception causes AM to crash.
-  TEZ-2960. Tez UI: Move hardcoded url namespace to the configuration file
-  TEZ-2581. Umbrella for Tez Recovery Redesign
-  TEZ-2956. Handle auto-reduce parallelism when the
-  totalNumBipartiteSourceTasks is 0
-  TEZ-2947. Tez UI: Timeline, RM & AM requests gets into a consecutive loop in counters page without any delay
-  TEZ-2946. Tez UI: At times RM return a huge error message making the yellow error bar to fill the whole screen
-  TEZ-2949. Allow duplicate dag names within session for Tez.
-  TEZ-2952. NPE in TestOnFileUnorderedKVOutput
-  TEZ-2480. Exception when closing output is ignored.
-  TEZ-2944. NPE in TestProcessorContext.
-  TEZ-2948. Stop using dagName in the dagComplete notification to TaskCommunicators.
-  TEZ-2945. TEZ-2740 addendum to update API with currently supported parameters
-  TEZ-2933. Tez UI: Load application details from RM when available
-  TEZ-2908. Tez UI: Errors are logged, but not displayed in the UI when AM fetch fails
-  TEZ-2923. Tez Live UI counters view empty for vertices, tasks, attempts
-  TEZ-2924. Framework for Hadoop shims.
-  TEZ-2935. Add MR slow start translation for ShuffleVertexManager
-  TEZ-2918. Make progress notifications in IOs
-  TEZ-2940. Invalid shuffle max slow start setting causes vertex to hang indefinitely
-  TEZ-2930. Tez UI: Parent controller is not polling at times
-  TEZ-1670. Add tests for all converter functions in HistoryEventTimelineConversion.
-  TEZ-2879. While grouping splits, allow an alternate list of preferred locations to be provided per split.
-  TEZ-2929. Tez UI: Dag details page displays vertices to be running even when dag have completed
-  TEZ-1976. Findbug warning: Unread field:
-  org.apache.hadoop.mapreduce.split.TezGroupedSplitsInputFormat$SplitHolder.split
-  TEZ-2927. Tez UI: Graciously fail when system-metrics-publisher is disabled
-  TEZ-2915. Tez UI: Getting back to the DAG details page is difficult
-  TEZ-2895. Tez UI: Add option to enable and disable in-progress
-  TEZ-2894. Tez UI: Disable sorting for few columns while in progress. Display an alert on trying to sort them
-  TEZ-2893. Tez UI: Retain vertex info displayed in DAG details page even after completion
-  TEZ-2878. Tez UI: AM error handling - Make the UI handle cases in which AM returns unexpected/no data
-  TEZ-2922. Tez Live UI gives access denied for admins
-  TEZ-2849. Implement Specific Workaround for JDK-8026049 & JDK-8073093.
-  TEZ-2828. Fix typo in "Shuffle assigned " log statement in shuffle.orderedgrouped.Shuffle.
-  TEZ-2909. Tez UI: Application link in All DAGs table is disable when applicationhistory is unavailable
-  TEZ-808. Handle task attempts that are not making progress
-  TEZ-2553. Tez UI: Tez UI Nits
-  TEZ-2814. ATSImportTool has a return statement in a finally block
-  TEZ-2906. Compilation fails with hadoop 2.2.0
-  TEZ-2900. Ignore V_INPUT_DATA_INFORMATION when vertex is in Failed/Killed/Error
-  TEZ-2244. PipelinedSorter: Progressive allocation for sort-buffers
-  TEZ-2904. Pig can't specify task specific command opts
-  TEZ-2888. Make critical path calculation resilient to AM crash
-  TEZ-2899. Tez UI: DAG getting created with huge horizontal gap in between vertices
-  TEZ-2907. NPE in IFile.Reader.getLength during final merge operation
-  TEZ-2903. Stop using proprietary APIs in RPCLoadGen.
-  TEZ-2882. Consider improving fetch failure handling
-  TEZ-2850. Tez MergeManager OOM for small Map Outputs
-  TEZ-1888. Fix javac warnings all over codebase.
-  TEZ-2886. Ability to merge AM credentials with DAG credentials.
-  TEZ-2896. Fix thread names used during Input/Output initialization.
-  TEZ-2866. Tez UI: Newly added columns wont be displayed by default in tables
-  TEZ-2887. Tez build failure due to missing dependency in pom files.
-  TEZ-1692. Reduce code duplication between TezMapredSplitsGrouper and TezMapreduceSplitsGrouper.
-  TEZ-2972. Avoid task rescheduling when a node turns unhealthy
-
-
-Release 0.8.1-alpha: 2015-10-12
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-  TEZ-2885. Remove counter logs from AMWebController
-  TEZ-2096. TEZ-UI : Add link to view AM log of finished & running apps
-  TEZ-2874. Improved logging for caller context.
-  TEZ-2875. Enable missing tests in TestAnalyzer
-  TEZ-2781. Fallback to send only TaskAttemptFailedEvent if taskFailed heartbeat fails
-  TEZ-1788. Allow vertex level disabling of speculation
-  TEZ-2868. Fix setting Caller Context in Tez Examples.
-  TEZ-2860. NPE in DAGClientImpl.
-  TEZ-2855. Fix a potential NPE while routing VertexManager events.
-  TEZ-2758. Remove append API in RecoveryService after TEZ-1909.
-  TEZ-2851. Support a way for upstream applications to pass in a caller context to Tez.
-  TEZ-2859. TestMergeManager.testLocalDiskMergeMultipleTasks failing
-  TEZ-2858. Stop using System.currentTimeMillis in TestInputReadyTracker.
-  TEZ-2857. Fix flakey tests in TestDAGImpl.
-  TEZ-2836. Avoid setting framework/system counters for tasks running in threads.
-  TEZ-2398. Flaky test: TestFaultTolerance
-  TEZ-2833. Dont create extra directory during ATS file download
-  TEZ-2834. Make Tez preemption resilient to incorrect free resource reported
-  by YARN
-  TEZ-2775. Improve and consolidate logging in Runtime components.
-  TEZ-2097. TEZ-UI Add dag logs backend support
-  TEZ-2812. Preemption sometimes does not respect heartbeats between preemptions
-  TEZ-814.  Improve heuristic for determining a task has failed outputs
-  TEZ-2832. Support tests for both SimpleHistory logging and ATS logging
-  TEZ-2827. Increase timeout for TestFetcher testInputAttemptIdentifierMap
-  TEZ-2774. Improvements and cleanup of logging for the AM and parts of the runtme.
-  TEZ-2825. Report progress in terms of completed tasks to reduce load on AM for Tez UI
-  TEZ-2812. Tez UI: Update task & attempt tables while in progress.
-  TEZ-2786. Tez UI: Update vertex, task & attempt details page while in progress.
-  TEZ-2612. Support for showing allocation delays due to internal preemption
-  TEZ-2808. Race condition between preemption and container assignment
-  TEZ-2807. Log data in the finish event instead of the start event
-  TEZ-2799. SimpleHistoryParser NPE
-  TEZ-2643. Minimize number of empty spills in Pipelined Sorter
-  TEZ-2783. Refactor analyzers to extend TezAnalyzerBase
-  TEZ-2784. optimize TaskImpl.isFinished()
-  TEZ-2788. Allow TezAnalyzerBase to parse SimpleHistory logs
-  TEZ-2782. VertexInfo.getAvgExecutionTimeInterval throws NPE when task does not have any valid attempts info
-  TEZ-2778. Improvements to handle multiple read errors with complex DAGs
-  TEZ-2768. Log a useful error message when the summary stream cannot be closed when shutting
-  down an AM.
-  TEZ-2745. ClassNotFoundException of user code should fail dag
-  TEZ-2754. Tez UI: StartTime & EndTime is not displayed with right format in Graphical View
-  TEZ-2752. logUnsuccessful completion in Attempt should write original finish
-  time to ATS
-  TEZ-2755. Fix findbugs warning in TezClient
-  TEZ-2767. Make TezMxBeanResourceCalculator the default resource calculator.
-  TEZ-2765. Change Xmlwriter to use defaultValue instead of value tag.
-  TEZ-2750. Shuffle may not shutdown in case of a fetch failure, causing it to hang.
-  TEZ-2294. Add tez-site-template.xml with description of config properties.
-  TEZ-2757. Fix download links for Tez releases.
-  TEZ-2742. VertexImpl.finished() terminationCause hides member var of the
-  same name
-  TEZ-2747. Update master to reflect 0.8.0-alpha release.
-  TEZ-2662. Provide a way to check whether AM or task opts are valid and error if not.
-  TEZ-2739. Improve handling of read errors in critical path analyzer
-
-Release 0.8.0-alpha: 2015-09-01
-
-INCOMPATIBLE CHANGES
-  TEZ-2048. Remove VertexManagerPluginContext.getTaskContainer()
-  TEZ-2565. Consider scanning unfinished tasks in VertexImpl::constructStatistics to reduce merge overhead.
-  TEZ-2468. Change the minimum Java version to Java 7.
-
-ALL CHANGES:
-  TEZ-2749. TaskInfo in history parser should not depend on the apache directory project. Fix master build against hadoop-2.4
-  TEZ-2748. Fix master build against hadoop-2.2. 
-  TEZ-2743. Fix TezContainerLauncher logging tokens.
-  TEZ-2708. Rename classes and variables post TEZ-2003 changes.
-  TEZ-2740. Create a reconfigureVertex alias for deprecated
-  setVertexParallelism API
-  TEZ-2690. Add critical path analyser
-  TEZ-2734. Add a test to verify the filename generated by OnDiskMerge.
-  TEZ-2732. DefaultSorter throws ArrayIndex exceptions on 2047 Mb size sort buffers
-  TEZ-2687. ATS History shutdown happens before the min-held containers are released
-  TEZ-2629. LimitExceededException in Tez client when DAG has exceeds the default max counters
-  TEZ-2730. tez-api missing dependency on org.codehaus.jettison for json.
-  TEZ-2719. Consider reducing logs in unordered fetcher with shared-fetch option
-  TEZ-2646. Add scheduling casual dependency for attempts
-  TEZ-2647. Add input causality dependency for attempts
-  TEZ-2633. Allow VertexManagerPlugins to receive and report based on attempts
-  instead of tasks
-  TEZ-2650. Timing details on Vertex state changes
-  TEZ-2699. Internalize strings in ATF parser
-  TEZ-2701. Add time at which container was allocated to attempt
-  TEZ-2683. TestHttpConnection::testAsyncHttpConnectionInterrupt fails in certain environments.
-  TEZ-2692. bugfixes & enhancements related to job parser and analyzer.
-  TEZ-2663. SessionNotRunning exceptions are wrapped in a ServiceException from a dying AM.
-  TEZ-2630. TezChild receives IP address instead of FQDN.
-  TEZ-2684. ShuffleVertexManager.parsePartitionStats throws IllegalStateException: Stats should be initialized.
-  TEZ-2172. FetcherOrderedGrouped using List to store InputAttemptIdentifier can lead to some inefficiency during remove() operation.
-  TEZ-2613. Fetcher(unordered) using List to store InputAttemptIdentifier can lead to some inefficiency during remove() operation.
-  TEZ-2645. Provide standard analyzers for job analysis.
-  TEZ-2627. Support for Tez Job Priorities.
-  TEZ-2623. Fix module dependencies related to hadoop-auth.
-  TEZ-2464. Move older releases to dist archive.
-  TEZ-2239. Update Tez UI docs to explain how to configure history url for YARN.
-  TEZ-2602. Throwing EOFException when launching MR job.
-  TEZ-2496. Consider scheduling tasks in ShuffleVertexManager based on the partition sizes from the source.
-  TEZ-2616. Fix build warning by undefined version of maven-findbugs-plugin.
-  TEZ-2588. Improper argument name
-  TEZ-2575. Handle KeyValue pairs size which do not fit in a single block.
-  TEZ-2599. Dont send obsoleted data movement events to tasks
-  TEZ-2542. TezDAGID fromString array length check.
-  TEZ-2565. Consider scanning unfinished tasks in VertexImpl::constructStatistics to reduce merge overhead.
-  TEZ-2296. Add option to print counters for tez-examples.
-  TEZ-2570. Fix license header issue for eps image files.
-  TEZ-2378. In case Fetcher (unordered) fails to do local fetch, log in debug mode to reduce log size.
-  TEZ-2558. Upload additional Tez images.
-  TEZ-2486. Update tez website to include links based on
-    http://www.apache.org/foundation/marks/pmcs.html#navigation.
-  TEZ-2548. TezClient submitDAG can hang if the AM is in the process of shutting down.
-  TEZ-2473. Consider using RawLocalFileSystem in MapOutput.createDiskMapOutput.
-  TEZ-2538. ADDITIONAL_SPILL_COUNT wrongly populated for DefaultSorter with multiple partitions.
-  TEZ-2489. Disable warn log for Timeline ACL error when tez.allow.disabled.timeline-domains set to true.
-  TEZ-2376. Remove TaskAttemptEventType.TA_DIAGNOSTICS_UPDATE
-  TEZ-2509. YarnTaskSchedulerService should not try to allocate containers if AM is shutting down.
-  TEZ-2506. TestAysncHttpConnection failing.
-  TEZ-2503. findbugs version isn't reported properly in test-patch report.
-  TEZ-2198. Fix sorter spill counts.
-  TEZ-1883. Change findbugs version to 3.x.
-  TEZ-2440. Sorter should check for indexCacheList.size() in flush().
-  TEZ-2490. TEZ-2450 breaks Hadoop 2.2 and 2.4 compatability.
-  TEZ-2450. support async http clients in ordered & unordered inputs.
-  TEZ-2454. Change FetcherOrderedGroup to work as Callables instead of blocking threads.
-  TEZ-2466. tez-history-parser breaks hadoop 2.2 compatability.
-  TEZ-2463. Update site for 0.7.0 release
-  TEZ-2461. tez-history-parser compile fails with hadoop-2.4.
-  TEZ-2076. Tez framework to extract/analyze data stored in ATS for specific dag.
-  TEZ-2436. Tez UI: Add cancel button in column selector.
-  TEZ-2351. Remove GroupByOrderbyMRRTest example from tez-tests.
-  TEZ-2419. Inputs/Outputs should inform the Processor about Interrupts when interrupted during a blocking Op.
-  TEZ-1752. Inputs / Outputs in the Runtime library should be interruptable.
-  TEZ-1970. Fix javadoc warnings in SortMergeJoinExample.
-
-TEZ-2003: Support for External services CHANGES
-  TEZ-2019. Temporarily allow the scheduler and launcher to be specified via configuration.
-  TEZ-2006. Task communication plane needs to be pluggable.
-  TEZ-2090. Add tests for jobs running in external services.
-  TEZ-2117. Add a manager for ContainerLaunchers running in the AM.
-  TEZ-2122. Setup pluggable components at AM/Vertex level.
-  TEZ-2123. Fix component managers to use pluggable components. (Enable hybrid mode)
-  TEZ-2125. Create a task communicator for local mode. Allow tasks to run in the AM.
-  TEZ-2131. Add additional tests for tasks running in the AM.
-  TEZ-2138. Fix minor bugs in adding default scheduler, getting launchers.
-  TEZ-2139. Update tez version to 0.7.0-TEZ-2003-SNAPSHOT.
-  TEZ-2175. Task priority should be available to the TaskCommunicator plugin.
-  TEZ-2187. Allow TaskCommunicators to report failed / killed attempts.
-  TEZ-2241. Miscellaneous fixes after last reabse.
-  TEZ-2283. Fixes after rebase 04/07.
-  TEZ-2284. Separate TaskReporter into an interface.
-  TEZ-2285. Allow TaskCommunicators to indicate task/container liveness.
-  TEZ-2302. Allow TaskCommunicators to subscribe for Vertex updates.
-  TEZ-2347. Expose additional information in TaskCommunicatorContext.
-  TEZ-2361. Propagate dag completion to TaskCommunicator.
-  TEZ-2381. Fixes after rebase 04/28.
-  TEZ-2388. Send dag identifier as part of the fetcher request string.
-  TEZ-2414. LogicalIOProcessorRuntimeTask, RuntimeTask, TezTaskRunner should handle interrupts & carry out necessary cleanups.
-  TEZ-2420. TaskRunner returning before executing the task.
-  TEZ-2433. Fixes after rebase 05/08
-  TEZ-2438. tez-tools version in the branch is incorrect.
-  TEZ-2434. Allow tasks to be killed in the Runtime.
-  TEZ-2443. TaskRunner2 should call abort, NPEs while cleaning up tasks.
-  TEZ-2465. Retrun the status of a kill request in TaskRunner2.
-  TEZ-2471. NPE in LogicalIOProcessorRuntimeTask while printing thread info.
-  TEZ-2495. Inform TaskCommunicaor about Task and Container termination reasons.
-  TEZ-2502. Fix for TezTaskRunner2 not killing tasks properly in all situations.
-  TEZ-2508. rebase 06/01
-  TEZ-2526. Fix version for tez-history-parser.
-  TEZ-2621. rebase 07/14
-  TEZ-2124. Change Node tracking to work per external container source.
-  TEZ-2004. Define basic interface for pluggable ContainerLaunchers.
-  TEZ-2005. Define basic interface for pluggable TaskScheduler.
-  TEZ-2651. Pluggable services should not extend AbstractService.
-  TEZ-2652. Cleanup the way services are specified for an AM and vertices.
-  TEZ-2653. Change service contexts to expose a user specified payload instead of the AM configuration.
-  TEZ-2441. Add tests for TezTaskRunner2.
-  TEZ-2657. Add tests for client side changes - specifying plugins, etc.
-  TEZ-2626. Fix log lines with DEBUG in messages, consolidate TEZ-2003 TODOs.
-  TEZ-2126. Add unit tests for verifying multiple schedulers, launchers, communicators.
-  TEZ-2698. rebase 08/05
-  TEZ-2675. Add javadocs for new pluggable components, fix problems reported by jenkins
-  TEZ-2678. Fix comments from reviews - part 1.
-  TEZ-2707. Fix comments from reviews - part 2.
-  TEZ-2713. Add tests for node handling when there's multiple schedulers.
-  TEZ-2721. rebase 08/14
-  TEZ-2714. Fix comments from review - part 3.
-  TEZ-2727. Fix findbugs warnings
-  TEZ-2670. Remove TaskAttempt holder used within TezTaskCommunicator.
-  TEZ-2735. rebase 08/21
-  TEZ-2736. Pre-merge: Update CHANGES.txt and version in branch.
-
-Release 0.7.2: Unreleased
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-
-  TEZ-3559. TEZ_LIB_URIS doesn't work with schemes different than the defaultFS
-  TEZ-3549. TaskAttemptImpl does not initialize TEZ_TASK_PROGRESS_STUCK_INTERVAL_MS correctly
-  TEZ-3537. ArrayIndexOutOfBoundsException with empty environment variables/Port YARN-3768 to Tez
-  TEZ-3507. Task logs link when editing url from one task to another.
-  TEZ-3536. NPE in WebUIService start when host resolution fails.
-  TEZ-3493. DAG submit timeout cannot be set to a month
-  TEZ-3505. Move license to the file header for TezBytesWritableSerialization
-  TEZ-3486. COMBINE_OUTPUT_RECORDS/COMBINE_INPUT_RECORDS are not correct
-  TEZ-3437. Improve synchronization and the progress report behavior for Inputs from TEZ-3317.
-  TEZ-3317. Speculative execution starts too early due to 0 progress.
-  TEZ-3452. Auto-reduce parallelism calculation can overflow with large inputs
-  TEZ-3439. Tez joinvalidate fails when first input argument size is bigger than the second.
-  TEZ-3464. Fix findbugs warnings in tez-dag mainLoop
-  TEZ-3335. DAG client thinks app is still running when app status is null
-  TEZ-3460. Fix precommit release audit warning
-  TEZ-3368. NPE in DelayedContainerManager
-  TEZ-3440. Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs
-  TEZ-3426. Second AM attempt launched for session mode and recovery disabled for certain cases
-  TEZ-3009. Errors that occur during container task acquisition are not logged.
-  TEZ-3413. ConcurrentModificationException in HistoryEventTimelineConversion for AppLaunchedEvent.
-  TEZ-3286. Allow clients to set processor reserved memory per vertex (instead of per container).
-  TEZ-3223. Support a NullHistoryLogger to disable history logging if needed.
-  TEZ-3293. Fetch failures can cause a shuffle hang waiting for memory merge that never starts.
-  TEZ-3305. TestAnalyzer fails on Hadoop 2.7.
-  TEZ-3304. TestHistoryParser fails with Hadoop 2.7.
-  TEZ-3296. Tez job can hang if two vertices at the same root distance have different task requirements
-  TEZ-3297. Deadlock scenario in AM during ShuffleVertexManager auto reduce.
-  TEZ-3296. Tez fails to compile against hadoop 2.8 after MAPREDUCE-5870
-  TEZ-3278. Hide Swimlane from Tez UI
-  TEZ-2769. TEZ-UI Hive SQL is only displayed to line 11
-  TEZ-3280. LOG MRInputHelpers split generation message as INFO
-  TEZ-3257. Fix flaky test TestUnorderedPartitionedKVWriter.
-  TEZ-3237. Corrupted shuffle transfers to disk are not detected during transfer
-  TEZ-3258. Jvm Checker does not ignore DisableExplicitGC when checking JVM GC options.
-  TEZ-3256. [Backport HADOOP-11032] Remove Guava Stopwatch dependency
-  TEZ-2342. Reduce bytearray copy with TezEvent Serialization and deserialization
-
-Release 0.7.1: 2016-05-10
-
-INCOMPATIBLE CHANGES
-  TEZ-2679. Admin forms of launch env settings
-  TEZ-2949. Allow duplicate dag names within session for Tez.
-
-ALL CHANGES:
-  TEZ-3193. Deadlock in AM during task commit request.
-  TEZ-3203. DAG hangs when one of the upstream vertices has zero tasks
-  TEZ-3224. User payload is not initialized before creating vertex manager plugin.
-  TEZ-3165. Allow Inputs/Outputs to be initialized serially, control processor initialization relative to Inputs/Outputs
-  TEZ-3202. Reduce the memory need for jobs with high number of segments
-  TEZ-3188. Move tez.submit.hosts out of TezConfiguration to TezConfigurationConstants.
-  TEZ-3196. java.lang.InternalError from decompression codec is fatal to a task during shuffle
-  TEZ-3177. Non-DAG events should use the session domain or no domain if the data does not need protection.
-  TEZ-3192. IFile#checkState creating unnecessary objects though auto-boxing
-  TEZ-3189. Pre-warm dags should not be counted in submitted dags count by DAGAppMaster.
-  TEZ-2967. Vertex start time should be that of first task start time in UI
-  TEZ-3175. Add tez client submit host
-  TEZ-3166. Fix a few cases where counters aren't fully updated and sent for failed tasks.
-  TEZ-2958. Recovered TA, whose commit cannot be recovered, should move to killed state
-  TEZ-3105. TezMxBeanResourceCalculator does not work on IBM JDK 7 or 8 causing Tez failures.
-  TEZ-2863. Container, node, and logs not available in UI for tasks that fail to launch
-  TEZ-3140. Reduce AM memory usage during serialization
-  TEZ-3156. Tez client keeps trying to talk to RM even if RM does not know about the application.
-  TEZ-3115. Shuffle string handling adds significant memory overhead
-  TEZ-3149. Tez-tools: Add username in DagInfo.
-  TEZ-2988. DAGAppMaster::shutdownTezAM should return with a no-op if it has been invoked earlier.
-  TEZ-3141. mapreduce.task.timeout is not translated to container heartbeat timeout
-  TEZ-3129. Tez task and task attempt UI needs application fails with NotFoundException
-  TEZ-3114. Shuffle OOM due to EventMetaData flood
-  TEZ-3102. Fetch failure of a speculated task causes job hang
-  TEZ-3126. Log reason for not reducing parallelism
-  TEZ-3123. Containers can get re-used even with conflicting local resources.
-  TEZ-3117. Deadlock in Edge and Vertex code
-  TEZ-3103. Shuffle can hang when memory to memory merging enabled
-  TEZ-3107. tez-tools: Log warn msgs in case ATS has wrong values (e.g startTime > finishTime).
-  TEZ-3104. Tez fails on Bzip2 intermediate output format on hadoop 2.7.1 and earlier
-  TEZ-3093. CriticalPathAnalyzer should be accessible via zeppelin.
-  TEZ-3089. TaskConcurrencyAnalyzer can return negative task count with very large jobs.
-  TEZ-2307. Possible wrong error message when submitting new dag.
-  TEZ-3076. Reduce merge memory overhead to support large number of in-memory mapoutputs
-  TEZ-3066. TaskAttemptFinishedEvent ConcurrentModificationException in recovery or history logging services.
-  TEZ-3036. Tez AM can hang on startup with no indication of error
-  TEZ-3052. Task internal error due to Invalid event: T_ATTEMPT_FAILED at FAILED
-  TEZ-2937. Can Processor.close() be called after closing inputs and outputs?
-  TEZ-3037. History URL should be set regardless of which history logging service is enabled.
-  TEZ-3032. DAG start time getting logged using system time instead of recorded time in startTime field.
-  TEZ-2129. Task and Attempt views should contain links to the logs
-  TEZ-3025. InputInitializer creation should use the dag ugi.
-  TEZ-3017. HistoryACLManager does not have a close method for cleanup
-  TEZ-2914. Ability to limit vertex concurrency
-  TEZ-2918. Make progress notifications in IOs
-  TEZ-2952. NPE in TestOnFileUnorderedKVOutput
-  TEZ-808. Handle task attempts that are not making progress
-  TEZ-2987. TestVertexImpl.testTez2684 fails
-  TEZ-2599. Dont send obsoleted data movement events to tasks
-  TEZ-2943. Change shuffle vertex manager to use per vertex data for auto
-  TEZ-2633. Allow VertexManagerPlugins to receive and report based on attempts
-  TEZ-3011. Link Vertex Name in Dag Tasks/Task Attempts to Vertex
-  TEZ-2538. ADDITIONAL_SPILL_COUNT wrongly populated for DefaultSorter with multiple partitions.
-  TEZ-3006. Remove unused import in TestHistoryParser.
-  TEZ-2979. FlakyTest: org.apache.tez.history.TestHistoryParser.
-  TEZ-2684. ShuffleVertexManager.parsePartitionStats throws IllegalStateException: Stats should be initialized.
-  TEZ-2496. Consider scheduling tasks in ShuffleVertexManager based on the partition sizes from the source.
-  TEZ-2995. Timeline primary filter should only be on callerId and not type.
-  TEZ-2824. Add javadocs for Vertex.setConf and DAG.setConf.
-  TEZ-2963. RecoveryService#handleSummaryEvent exception with HDFS transparent encryption + kerberos authentication.
-  TEZ-2966. Tez does not honor mapreduce.task.timeout
-  TEZ-2346. TEZ-UI: Lazy load other info / counter data
-  TEZ-2975. Bump up apache commons dependency.
-  TEZ-2970. Re-localization in TezChild does not use correct UGI.
-  TEZ-2968. Counter limits exception causes AM to crash.
-  TEZ-2947. Tez UI: Timeline, RM & AM requests gets into a consecutive loop in counters page without any delay
-  TEZ-2949. Allow duplicate dag names within session for Tez.
-  TEZ-2923. Tez Live UI counters view empty for vertices, tasks, attempts
-  TEZ-2935. Add MR slow start translation for ShuffleVertexManager
-  TEZ-2940. Invalid shuffle max slow start setting causes vertex to hang indefinitely
-  TEZ-1670. Add tests for all converter functions in HistoryEventTimelineConversion.
-  TEZ-2922. Tez Live UI gives access denied for admins
-  TEZ-2828. Fix typo in "Shuffle assigned " log statement in shuffle.orderedgrouped.Shuffle.
-  TEZ-2900. Ignore V_INPUT_DATA_INFORMATION when vertex is in Failed/Killed/Error
-  TEZ-2904. Pig can't specify task specific command opts
-  TEZ-2899. Tez UI: DAG getting created with huge horizontal gap in between vertices
-  TEZ-2882. Consider improving fetch failure handling
-  TEZ-2907. NPE in IFile.Reader.getLength during final merge operation
-  TEZ-2850. Tez MergeManager OOM for small Map Outputs
-  TEZ-2886. Ability to merge AM credentials with DAG credentials.
-  TEZ-2896. Fix thread names used during Input/Output initialization.
-  TEZ-2866. Tez UI: Newly added columns wont be displayed by default in tables
-  TEZ-2885. Remove counter logs from AMWebController.
-  TEZ-2887. Tez build failure due to missing dependency in pom files.
-  TEZ-2096. TEZ-UI : Add link to view AM log of finished & running apps
-  TEZ-2874. Improved logging for caller context.
-  TEZ-2781. Fallback to send only TaskAttemptFailedEvent if taskFailed heartbeat fails
-  TEZ-2868. Fix setting Caller Context in Tez Examples.
-  TEZ-2860. NPE in DAGClientImpl.
-  TEZ-2855. Fix a potential NPE while routing VertexManager events.
-  TEZ-2758. Remove append API in RecoveryService after TEZ-1909.
-  TEZ-2851. Support a way for upstream applications to pass in a caller context to Tez.
-  TEZ-2858. Stop using System.currentTimeMillis in TestInputReadyTracker.
-  TEZ-2857. Fix flakey tests in TestDAGImpl.
-  TEZ-2398. Flaky test: TestFaultTolerance
-  TEZ-2808. Race condition between preemption and container assignment
-  TEZ-2853. Tez UI: task attempt page is coming empty
-  TEZ-2716. DefaultSorter.isRleNeeded not thread safe
-  TEZ-2847. Tez UI: Task details doesn't gets updated on manual refresh after job complete
-  TEZ-2843. Tez UI: Show error if in progress fails due to AM not reachable
-  TEZ-2842. Tez UI: Update Tez App details page while in-progress
-  TEZ-2834. Make Tez preemption resilient to incorrect free resource reported
-  by YARN
-  TEZ-2775. Improve and consolidate logging in Runtime components.
-  TEZ-2097. TEZ-UI Add dag logs backend support
-  TEZ-2812. Preemption sometimes does not respect heartbeats between preemptions
-  TEZ-814.  Improve heuristic for determining a task has failed outputs
-  TEZ-2829. Tez UI: minor fixes to in-progress update of UI from AM
-  TEZ-2663. SessionNotRunning exceptions are wrapped in a ServiceException from a dying AM.
-  TEZ-2825. Report progress in terms of completed tasks to reduce load on AM for Tez UI
-  TEZ-2812. Tez UI: Update task & attempt tables while in progress.
-  TEZ-2786. Tez UI: Update vertex, task & attempt details page while in progress.
-  TEZ-2817. Tez UI: update in progress counter data for the dag vertices and tasks table
-  TEZ-2813. Tez UI: add counter data for rest api calls to AM Web Services v2
-  TEZ-2660. Tez UI: need to show application page even if system metrics publish is disabled.
-  TEZ-2787. Tez AM should have java.io.tmpdir=./tmp to be consistent with tasks
-  TEZ-2780. Tez UI: Update All Tasks page while in progress
-  TEZ-2792. Add AM web service API for tasks
-  TEZ-2807. Log data in the finish event instead of the start event
-  TEZ-2766. Tez UI: Add vertex in-progress info in DAG details
-  TEZ-2768. Log a useful error message when the summary stream cannot be closed when shutting
-  down an AM.
-  TEZ-2745. ClassNotFoundException of user code should fail dag
-  TEZ-2761. Tez UI: update the progress on the dag and vertices pages with info from AM
-  TEZ-2731. Fix Tez GenericCounter performance bottleneck
-  TEZ-2752. logUnsuccessful completion in Attempt should write original finish
-  time to ATS
-  TEZ-2755. Fix findbugs warning in TezClient
-  TEZ-2767. Make TezMxBeanResourceCalculator the default resource calculator.
-  TEZ-2602. Throwing EOFException when launching MR job
-  TEZ-2575. Handle KeyValue pairs size which do not fit in a single block in PipelinedSorter
-  TEZ-2198. Fix sorter spill counts
-  TEZ-2440. Sorter should check for indexCacheList.size() in flush()
-  TEZ-2742. VertexImpl.finished() terminationCause hides member var of the
-  same name
-  TEZ-2662. Provide a way to check whether AM or task opts are valid and error if not.
-  TEZ-2300. TezClient.stop() takes a lot of time or does not work sometimes
-  TEZ-2734. Add a test to verify the filename generated by OnDiskMerge.
-  TEZ-2732. DefaultSorter throws ArrayIndex exceptions on 2047 Mb size sort buffers
-  TEZ-2687. ATS History shutdown happens before the min-held containers are released
-  TEZ-2629. LimitExceededException in Tez client when DAG has exceeds the default max counters
-  TEZ-2540. Create both tez-dist minimal and minimal.tar.gz formats as part of build
-  TEZ-2630. TezChild receives IP address instead of FQDN.
-  TEZ-2211. Tez UI: Allow users to configure timezone
-  TEZ-2623. Fix module dependencies related to hadoop-auth.
-  TEZ-1314. Port MAPREDUCE-5821 to Tez.
-  TEZ-2568. V_INPUT_DATA_INFORMATION may happen after vertex is initialized
-  TEZ-2291. TEZ UI: Improper vertex name in tables.
-  TEZ-2567. Tez UI: download dag data does not work within ambari
-  TEZ-2559. tez-ui fails compilation due to version dependency of frontend-maven-plugin
-  TEZ-2545. It is not necessary to start the vertex group commit when DAG is in TERMINATING
-  TEZ-2554. Tez UI: View log link does not correctly propagate login crendential to read log from yarn web.
-  TEZ-2548. TezClient submitDAG can hang if the AM is in the process of shutting down.
-  TEZ-2547. Tez UI: Download Data fails on secure, cross-origin clusters
-  TEZ-1961. Remove misleading exception "No running dag" from AM logs.
-  TEZ-2546. Tez UI: Fetch hive query text from timeline if dagInfo is not set.
-  TEZ-2513. Tez UI: Allow filtering by DAG ID on All dags table.
-  TEZ-2541. DAGClientImpl enable TimelineClient check is wrong.
-  TEZ-2539. Tez UI: Pages are not updating in IE.
-  TEZ-2535. Tez UI: Failed task attempts link in vertex details page is broken.
-  TEZ-2489. Disable warn log for Timeline ACL error when tez.allow.disabled.timeline-domains set to true.
-  TEZ-2528. Tez UI: Column selector buttons gets clipped, and table scroll bar not visible in mac.
-  TEZ-2391. TestVertexImpl timing out at times on jenkins builds.
-  TEZ-2509. YarnTaskSchedulerService should not try to allocate containers if AM is shutting down.
-  TEZ-2527. Tez UI: Application hangs on entering erroneous RegEx in counter table search box
-  TEZ-2523. Tez UI: derive applicationId from dag/vertex id instead of relying on json data
-  TEZ-2505. PipelinedSorter uses Comparator objects concurrently from multiple threads.
-  TEZ-2504. Tez UI: tables - show status column without scrolling, numeric 0 shown as Not available
-  TEZ-2478. Move OneToOne routing to store events in Tasks.
-  TEZ-2482. Tez UI: Mouse events not working on IE11
-  TEZ-1529. ATS and TezClient integration in secure kerberos enabled cluster.
-  TEZ-2481. Tez UI: graphical view does not render properly on IE11
-  TEZ-2474. The old taskNum is logged incorrectly when parallelism is changed
-  TEZ-2460. Temporary solution for issue due to YARN-2560
-  TEZ-2455. Tez UI: Dag view caching, error handling and minor layout changes
-  TEZ-2453. Tez UI: show the dagInfo is the application has set the same.
-  TEZ-2447. Tez UI: Generic changes based on feedbacks.
-  TEZ-2409. Allow different edges to have different routing plugins
-
-Release 0.7.0: 2015-05-18
-
-INCOMPATIBLE CHANGES
-  TEZ-2176. Move all logging to slf4j. (commons-logging jar no longer part of Tez tar)
-  TEZ-1993. Implement a pluggable InputSizeEstimator for grouping fairly.
-  TEZ-2424. Bump up max counter group name length limit to account for per_io counters.
-    Default max limit increased. Should not affect existing users.
-
-ALL CHANGES:
-  TEZ-2446. Tez UI: Add tezVersion details when downloading timeline data for offline use
-  TEZ-2432. Syntax error in DOAP file release section
-  TEZ-2445. Disable the object cleanup in local mode in LogicalIOProcessorRuntimeTask.
-  TEZ-2057. tez-dag/pom.xml contains versions for dependencies.
-  TEZ-2435. Add public key to KEYS
-  TEZ-2421. Deadlock in AM because attempt and vertex locking each other out
-  TEZ-2426. Ensure the eventRouter thread completes before switching to a new task and thread safety fixes in IPOContexts.
-  TEZ-2412. Should kill vertex in DAGImpl#VertexRerunWhileCommitting
-  TEZ-2410. VertexGroupCommitFinishedEvent & VertexCommitStartedEvent is not logged correctly
-  TEZ-776. Reduce AM mem usage caused by storing TezEvents
-  TEZ-2423. Tez UI: Remove Attempt Index column from task->attempts page
-  TEZ-2416. Tez UI: Make tooltips display faster.
-  TEZ-2404. Handle DataMovementEvent before its TaskAttemptCompletedEvent
-  TEZ-2424. Bump up max counter group name length limit to account for per_io counters.
-  TEZ-2417. Tez UI: Counters are blank in the Attempts page if all attempts failed
-  TEZ-2366. Pig tez MiniTezCluster unit tests fail intermittently after TEZ-2333
-  TEZ-2406. Tez UI: Display per-io counter columns in task and attempt pages under vertex
-  TEZ-2384. Add warning message in the case of prewarn under non-session mode.
-  TEZ-2415. PMC RDF needs to use asfext:pmc, not asfext:PMC.
-  TEZ-2401. Tez UI: All-dag page has duration keep counting for KILLED dag.
-  TEZ-2392. Have all readers throw an Exception on incorrect next() usage.
-  TEZ-2408. TestTaskAttempt fails to compile against hadoop-2.4 and hadoop-2.2.
-  TEZ-2405. PipelinedSorter can throw NPE with custom compartor.
-  TEZ-1897. Create a concurrent version of AsyncDispatcher
-  TEZ-2394. Issues when there is an error in VertexManager callbacks
-  TEZ-2386. Tez UI: Inconsistent usage of icon colors
-  TEZ-2395. Tez UI: Minimum/Maximum Duration show a empty bracket next to 0 secs when you purposefully failed a job.
-  TEZ-2360. per-io counters flag should generate both overall and per-edge counters
-  TEZ-2389. Tez UI: Sort by attempt-no is incorrect in attempts pages.
-  TEZ-2363: Fix off-by-one error in REDUCE_INPUT_RECORDS counter
-  TEZ-2383. Cleanup input/output/processor contexts in LogicalIOProcessorRuntimeTask.
-  TEZ-2084. Tez UI: Stacktrace format info is lost in diagnostics
-  TEZ-2374. Fix build break against hadoop-2.2 due to TEZ-2325.
-  TEZ-2314. Tez task attempt failures due to bad event serialization
-  TEZ-2368. Make a dag identifier available in Context classes.
-  TEZ-2325. Route status update event directly to the attempt.
-  TEZ-2358. Pipelined Shuffle: MergeManager assumptions about 1 merge per source-task.
-  TEZ-2342. TestFaultTolerance.testRandomFailingTasks fails due to timeout.
-  TEZ-2362. State Change Notifier Thread should be stopped when dag is
-  completed
-  TEZ-2364. Resolve config parameter replacement on the client, before sending them to the AM.
-  TEZ-2298. Avoid logging full exception trace in TaskRunner when it's not the main error reason and is ignored.
-  TEZ-2248. VertexImpl/DAGImpl.checkForCompletion have too many termination cause checks
-  TEZ-2341. TestMockDAGAppMaster.testBasicCounters fails on windows
-  TEZ-2352. Move getTaskStatistics into the RuntimeTask class.
-  TEZ-2357. Tez UI: misc.js.orig is committed by accident
-  TEZ-2261. Should add diagnostics in DAGAppMaster when recovery error happens
-  TEZ-2340. TestRecoveryParser fails
-  TEZ-2345. Tez UI: Enable cell level loading in all DAGs table
-  TEZ-2330. Create reconfigureVertex() API for input based initialization
-  TEZ-2292. Add e2e test for error reporting when vertex manager invokes
-  plugin APIs
-  TEZ-2308. Add set/get of record counts in task/vertex statistics
-  TEZ-2344. Tez UI: Equip basic-ember-table's cell level loading for all use cases in all DAGs table
-  TEZ-2313. Regression in handling obsolete events in ShuffleScheduler.
-  TEZ-2212. Notify components on DAG completion.
-  TEZ-2328. Add tez.runtime.sorter.class & rename tez.runtime.sort.threads
-  to tez.runtime.pipelined.sorter.sort.threads.
-  TEZ-2333. Enable local fetch optimization by default.
-  TEZ-2310. Deadlock caused by StateChangeNotifier sending notifications on
-  thread holding locks
-  TEZ-1969. Stop the DAGAppMaster when a local mode client is stopped
-  TEZ-714. OutputCommitters should not run in the main AM dispatcher thread
-  TEZ-2323. Fix TestOrderedWordcount to use MR memory configs.
-  TEZ-1482. Fix memory issues for Local Mode running concurrent tasks
-  TEZ-2033. Update TestOrderedWordCount to add processor configs as history text
-  and use MR configs correctly
-  TEZ-2318. Tez UI: source and sink page is broken as they are not populated.
-  TEZ-2016. Tez UI: Dag View Fit and Finish
-  TEZ-2252. Tez UI: in graphical view some of the sinks are hidden as they overlap
-  TEZ-2275. Tez UI: enable faster loading and caching of data in tables
-  TEZ-2234. Add API for statistics information - allow vertex managers to get
-  output size per source vertex
-  TEZ-2274. Tez UI: full data loading, client side search and sort for other pages
-  TEZ-2301. Switch Tez Pre-commit builds to use tezqa user.
-  TEZ-2299. Invalid dag creation in MRRSleepJob post TEZ-2293.
-  TEZ-2290. Scale memory for Default Sorter down to a max of 2047 MB if configured higher.
-  TEZ-2233. Allow EdgeProperty of an edge to be changed by VertexManager
-  TEZ-2293. When running in "mr" mode, always use MR config settings.
-  TEZ-2273. Tez UI: Support client side searching & sorting for dag tasks page
-  TEZ-2223. TestMockDAGAppMaster fails due to TEZ-2210 on mac.
-  TEZ-2236. Tez UI: Support loading of all tasks in the dag tasks page
-  TEZ-2159. Tez UI: download timeline data for offline use.
-  TEZ-2269. DAGAppMaster becomes unresponsive (post TEZ-2149).
-  TEZ-2243. documentation should explicitly specify protobuf 2.5.0.
-  TEZ-2232. Allow setParallelism to be called multiple times before tasks get
-  scheduled
-  TEZ-2265. All inputs/outputs in a task share the same counter object
-  TEZ-2251. Race condition in VertexImpl & Edge causes DAG to hang.
-  TEZ-2264. Remove unused taskUmbilical reference in TezTaskRunner, register as running late.
-  TEZ-2149. Optimizations for the timed version of DAGClient.getStatus.
-  TEZ-2213. For the ordered case, enabling pipelined shuffle should automatically disable final merge.
-  TEZ-2204. TestAMRecovery increasingly flaky on jenkins builds.
-  TEZ-2209. Fix pipelined shuffle to fetch data from any one attempt
-  TEZ-2210. Record DAG AM CPU usage stats
-  TEZ-2203. Intern strings in tez counters
-  TEZ-2202. Fix LocalTaskExecutionThread ID to the standard thread numbering.
-  TEZ-2059. Remove TaskEventHandler in TestDAGImpl
-  TEZ-2191. Simulation improvements to MockDAGAppMaster
-  TEZ-2195. TestTezJobs::testInvalidQueueSubmission/testInvalidQueueSubmissionToSession
-    fail with hadoop branch-2.
-  TEZ-1827. MiniTezCluster takes 10 minutes to shut down.
-  TEZ-2178. YARN-3122 breaks tez compilation with hadoop 2.7.0.
-  TEZ-2174. Make task priority available to TaskAttemptListener.
-  TEZ-2169. Add NDC context to various threads and pools.
-  TEZ-2171. Remove unused metrics code.
-  TEZ-2001. Support pipelined data transfer for ordered output.
-  TEZ-2170. Incorrect its in README.md.
-  TEZ-2070. Controller class of output should be committer rather than initializer in DAG's dot file.
-  TEZ-2083. Make PipelinedSorter as the default sorter.
-  TEZ-1967. Add a monitoring API on DAGClient which returns after a time interval or on DAG final state change.
-  TEZ-2130. Send the sessionToken as part of the AM CLC.
-  TEZ-1935. Organization should be removed from http://tez.apache.org/team-list.html.
-  TEZ-2009. Change license/copyright headers to 2015.
-  TEZ-2085. PipelinedSorter should bail out (on BufferOverflowException) instead of retrying continuously.
-  TEZ-167. Create tests for MR Combiner.
-  TEZ-2080. Localclient should be using tezconf in init instead of yarnconf.
-  TEZ-2072. Add missing Private annotation to createDAG in the DAG API class.
-  TEZ-2095. master branch fails to compile against hadoop-2.4.
-  TEZ-2093. Add events to MockDAGAppMaster and add e2e test for event routing
-  TEZ-2075. Incompatible issue caused by TEZ-1233 that TezConfiguration.TEZ_SITE_XML is made private
-  TEZ-2082. Race condition in TaskAttemptListenerImpTezDag.getTask()
-  TEZ-1233. Allow configuration of framework parameters per vertex.
-  TEZ-2045. TaskAttemptListener should not pull Tasks from AMContainer. Instead these should be registered with the listener.
-  TEZ-1914. VertexManager logic should not run on the central dispatcher
-  TEZ-2023. Refactor logIndividualFetchComplete() to be common for both shuffle-schedulers.
-  TEZ-1999. IndexOutOfBoundsException during merge.
-  TEZ-2000. Source vertex exists error during DAG submission.
-  TEZ-2008. Add methods to SecureShuffleUtils to verify a reply based on a provided Key.
-  TEZ-1995. Build failure against hadoop 2.2.
-  TEZ-1997. Remove synchronization DefaultSorter::isRLENeeded() (Causes sorter to hang indefinitely in large jobs).
-  TEZ-1996. Update Website after 0.6.0
-  TEZ-1803. Support > 2gb sort buffer in pipelinedsorter.
-  TEZ-1826. Add option to disable split grouping and local mode option for tez-examples.
-  TEZ-1982. TezChild setupUgi should not be using environment.
-  TEZ-1980. Suppress tez-dag findbugs warnings until addressed.
-  TEZ-1855. Avoid scanning for previously written files within Inputs / Outputs.
-  TEZ-1902. Fix findbugs warnings in tez-mapreduce.
-  TEZ-1963. Fix post memory merge to be > 2 GB.
-  TEZ-1901. Fix findbugs warnings in tez-examples.
-  TEZ-1941. Memory provided by *Context.getAvailableMemory needs to be setup explicitly.
-  TEZ-1879. Create local UGI instances for each task and the AM, when running in LocalMode.
-  TEZ-1661. LocalTaskScheduler hangs when shutdown.
-  TEZ-1951. Fix general findbugs warnings in tez-dag.
-  TEZ-1905. Fix findbugs warnings in tez-tests.
-  TEZ-1945. Remove 2 GB memlimit restriction in MergeManager.
-  TEZ-1913. Reduce deserialize cost in ValuesIterator.
-  TEZ-1917. Examples should extend TezExampleBase.
-  TEZ-1892. Add hashCode and equals for Vertex/VertexGroup/Edge/GroupInputEdge.
-  TEZ-1904. Fix findbugs warnings in tez-runtime-library module.
-  TEZ-1903. Fix findbugs warnings in tez-runtime-internal module.
-  TEZ-1896. Move the default heartbeat timeout and checkinterval to TezConfiguration.
-  TEZ-1274. Remove Key/Value type checks in IFile.
-  TEZ-1912. Merge exceptions are thrown when enabling tez.runtime.shuffle.memory-to-memory.enable && tez.runtime.shuffle.memory-to-memory.segments.
-  TEZ-1922. Fix comments: add UNSORTED_OUTPUT to TEZ_TASK_SCALE_MEMORY_WEIGHTED_RATIOS.
-  TEZ-485. Get rid of TezTaskStatus.
-  TEZ-1899. Fix findbugs warnings in tez-common module.
-  TEZ-1898. Fix findbugs warnings in tez-api module.
-  TEZ-1906. Fix findbugs warnings in tez-yarn-timeline-history-with-acls.
-  TEZ-1767. Enable RLE in reducer side merge codepath.
-  TEZ-1837. Restrict usage of Environment variables to main methods.
-  TEZ-1867. Create new central dispatcher for Tez AM
-  TEZ-1844. Shouldn't invoke system.exit in local mode when AM is failed to start.
-  TEZ-1889. Fix test-patch to provide correct findbugs report.
-  TEZ-1313. Setup pre-commit build to test submitted patches.
-  TEZ-1856. Remove LocalOnFileSortedOutput, LocalMergedInput, LocalTaskOutputFiles.
-  TEZ-1949. Whitelist TEZ_RUNTIME_OPTIMIZE_SHARED_FETCH for broadcast edges.
-  TEZ-1593. Refactor PipelinedSorter to remove all MMAP based ByteBuffer references.
-
-Release 0.6.3: Unreleased
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-  TEZ-2907. NPE in IFile.Reader.getLength during final merge operation
-  TEZ-2850. Tez MergeManager OOM for small Map Outputs
-  TEZ-2781. Fallback to send only TaskAttemptFailedEvent if taskFailed heartbeat fails
-  TEZ-2855. Fix a potential NPE while routing VertexManager events.
-  TEZ-2716. DefaultSorter.isRleNeeded not thread safe
-  TEZ-2758. Remove append API in RecoveryService after TEZ-1909.
-  TEZ-2851. Support a way for upstream applications to pass in a caller context to Tez.
-  TEZ-2398. Flaky test: TestFaultTolerance
-  TEZ-2808. Race condition between preemption and container assignment
-  TEZ-2834. Make Tez preemption resilient to incorrect free resource reported
-  by YARN
-  TEZ-2097. TEZ-UI Add dag logs backend support
-  TEZ-2812. Preemption sometimes does not respect heartbeats between preemptions
-  TEZ-814.  Improve heuristic for determining a task has failed outputs
-  TEZ-2809. Minimal distribution compiled on 2.6 fails to run on 2.7
-  TEZ-2768. Log a useful error message when the summary stream cannot be closed when shutting
-  down an AM.
-  TEZ-2745. ClassNotFoundException of user code should fail dag
-  TEZ-2752. logUnsuccessful completion in Attempt should write original finish
-  time to ATS
-  TEZ-2742. VertexImpl.finished() terminationCause hides member var of the
-  same name
-  TEZ-2732. DefaultSorter throws ArrayIndex exceptions on 2047 Mb size sort buffers
-  TEZ-2290. Scale memory for Default Sorter down to a max of 2047 MB if configured higher.
-  TEZ-2734. Add a test to verify the filename generated by OnDiskMerge.
-  TEZ-2687. ATS History shutdown happens before the min-held containers are released
-  TEZ-2629. LimitExceededException in Tez client when DAG has exceeds the default max counters
-  TEZ-2630. TezChild receives IP address instead of FQDN.
-
-Release 0.6.2: 2015-08-07
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-  TEZ-2311. AM can hang if kill received while recovering from previous attempt.
-  TEZ-2623. Fix module dependencies related to hadoop-auth.
-  TEZ-2560. fix tex-ui build for maven 3.3+
-  TEZ-2600. When used with HDFS federation(viewfs) ,tez will throw a error
-  TEZ-2579. Incorrect comparison of TaskAttemptId
-  TEZ-2549. Reduce Counter Load on the Timeline Server
-  TEZ-2548. TezClient submitDAG can hang if the AM is in the process of shutting down.
-  TEZ-2534. Error handling summary event when shutting down AM.
-  TEZ-2511. Add exitCode to diagnostics when container fails.
-  TEZ-2489. Disable warn log for Timeline ACL error when tez.allow.disabled.timeline-domains set to true.
-  TEZ-2509. YarnTaskSchedulerService should not try to allocate containers if AM is shutting down.
-  TEZ-2483. Tez should close task if processor fail
-
-Release 0.6.1: 2015-05-18
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-  TEZ-2437. FilterLinesByWord NPEs when run in Localmode
-  TEZ-2057. tez-dag/pom.xml contains versions for dependencies.
-  TEZ-2282. Delimit reused yarn container logs (stderr, stdout, syslog) with task attempt start/stop events
-  TEZ-2396. pig-tez-tfile-parser pom is hard coded to depend on 0.6.0-SNAPSHOT version.
-  TEZ-2237. Valid events should be sent out when an Output is not started.
-  TEZ-1988. Tez UI: does not work when using file:// in a browser
-  TEZ-2390. tez-tools swimlane tool fails to parse large jobs >8K containers
-  TEZ-2256. Avoid use of BufferTooSmallException to signal end of buffer in UnorderedPartitionedKVWriter
-  TEZ-2380. Disable fall back to reading from timeline if timeline disabled.
-  TEZ-2226. Disable writing history to timeline if domain creation fails.
-  TEZ-2259. Push additional data to Timeline for Recovery for better consumption in UI.
-  TEZ-2365. Update tez-ui war's license/notice to reflect OFL license correctly.
-  TEZ-2329. UI Query on final dag status performance improvement
-  TEZ-2287. Deprecate VertexManagerPluginContext.getTaskContainer().
-  TEZ-1909. Remove need to copy over all events from attempt 1 to attempt 2 dir
-  TEZ-2061. Tez UI: vertex id column and filter on tasks page should be changed to vertex name
-  TEZ-2242. Refactor ShuffleVertexManager code
-  TEZ-2205. Tez still tries to post to ATS when yarn.timeline-service.enabled=false.
-  TEZ-2047. Build fails against hadoop-2.2 post TEZ-2018
-  TEZ-2064. SessionNotRunning Exception not thrown is all cases
-  TEZ-2189. Tez UI live AM tracking url only works for localhost addresses
-  TEZ-2179. Timeline relatedentries missing cause exaggerated warning.
-  TEZ-2168. Fix application dependencies on mutually exclusive artifacts: tez-yarn-timeline-history
-    and tez-yarn-timeline-history-with-acls.
-  TEZ-2190. TestOrderedWordCount fails when generateSplitsInClient set to true.
-  TEZ-2091. Add support for hosting TEZ_UI with nodejs.
-  TEZ-2165. Tez UI: DAG shows running status if killed by RM in some cases.
-  TEZ-2158. TEZ UI: Display dag/vertex names, and task/attempt index in breadcrumb.
-  TEZ-2160. Tez UI: App tracking URL should support navigation back.
-  TEZ-2147. Swimlanes: Improved tooltip
-  TEZ-2142. TEZ UI: Breadcrumb border color looks out of place in wrapped mode.
-  TEZ-2134. TEZ UI: On request failure, display request URL and server name in error bar.
-  TEZ-2136. Some enhancements to the new Tez UI.
-  TEZ-2135. ACL checks handled incorrectly in AMWebController.
-  TEZ-1990. Tez UI: DAG details page shows Nan for end time when a DAG is running.
-  TEZ-2116. Tez UI: dags page filter does not work if more than one filter is specified.
-  TEZ-2106. TEZ UI: Display data load time, and add a refresh button for items that can be refreshed.
-  TEZ-2114. Tez UI: task/task attempt status is not available when its running.
-  TEZ-2112. Tez UI: fix offset calculation, add home button to breadcrumbs.
-  TEZ-2038. TEZ-UI DAG is always running in tez-ui when the app is failed but no DAGFinishedEvent is logged.
-  TEZ-2102. Tez UI: DAG view has hidden edges, dragging DAG by holding vertex causes unintended click.
-  TEZ-2101. Tez UI: Issues on displaying a table.
-  TEZ-2092. Tez UI history url handler injects spurious trailing slash.
-  TEZ-2098. Tez UI: Dag details should be the default page for dag, fix invalid time entries for failed Vertices.
-  TEZ-2024. TaskFinishedEvent may not be logged in recovery.
-  TEZ-2031. Tez UI: horizontal scrollbars do not appear in tables, causing them to look truncated. 
-  TEZ-2073. SimpleHistoryLoggingService cannot be read by log aggregation (umask)
-  TEZ-2078. Tez UI: Task logs url use in-progress url causing various errors.
-  TEZ-2077. Tez UI: No diagnostics on Task Attempt Details page if task attempt failed. 
-  TEZ-2065. Setting up tez.tez-ui.history-url.base with a trailing slash can result in failures to redirect correctly. 
-  TEZ-2068. Tez UI: Dag view should use full window height, disable webuiservice in localmode.
-  TEZ-2079. Tez UI: trailing slash in timelineBaseUrl in ui should be handled. 
-  TEZ-2069. Tez UI: appId should link to application in dag details view.
-  TEZ-2063. Tez UI: Flaky log url in tasks table.
-  TEZ-2062. Tez UI: Showing 50 elements not working properly.
-  TEZ-2056. Tez UI: fix VertexID filter,show only tez configs by default,fix appattemptid.
-  TEZ-2052. Tez UI: log view fixes, show version from build, better handling of ats url config.
-  TEZ-2043. Tez UI: add progress info from am webservice to dag and vertex views.
-  TEZ-2032. Update CHANGES.txt to show 0.6.0 is released
-  TEZ-2018. App Tracking and History URL should point to the Tez UI.
-  TEZ-2035. Make timeline server putDomain exceptions non-fatal - work-around
-  TEZ-1929. pre-empted tasks should be marked as killed instead of failed
-  TEZ-2017. TEZ UI - Dag view throwing error whild re-displaying additionals in some dags.
-  TEZ-2013. TEZ UI - App Details Page UI Nits
-  TEZ-2014. Tez UI: Nits : All tables, Vertices Page UI.
-  TEZ-2012. TEZ UI: Show page number in all tables, and display more readable task/attempt ids.
-  TEZ-1973. Dag View
-  TEZ-2010. History payload generated from conf has ${var} placeholders.
-  TEZ-1946. Tez UI: add source & sink views, add counters to vertices/all task views.
-  TEZ-1987. Tez UI non-standalone mode uses invalid protocol.
-  TEZ-1983. Tez UI swimlane task attempt link is broken
-
-Release 0.6.0: 2015-01-23
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-  TEZ-1977. Fixup CHANGES.txt with Tez UI jiras
-  TEZ-1743. Add versions-maven-plugins artifacts to gitignore
-  TEZ-1968. Tez UI - All vertices of DAG are not listed in vertices page
-  TEZ-1890. tez-ui web.tar.gz also being uploaded to maven repository
-  TEZ-1938. Build warning duplicate jersey-json definitions
-  TEZ-1910. Build fails against hadoop-2.2.0.
-  TEZ-1882. Tez UI build does not work on Windows
-  TEZ-1915. Add public key to KEYS
-  TEZ-1907. Fix javadoc warnings in tez codebase
-  TEZ-1891. Incorrect number of Javadoc warnings reported
-  TEZ-1762. Lots of unit tests do not have timeout parameter set.
-  TEZ-1886. remove deprecation warnings for tez-ui on the console.
-  TEZ-1875. dropdown filters do not work on vertices and task attempts page.
-  TEZ-1873. TestTezAMRMClient fails due to host resolution timing out.
-  TEZ-1881. Setup initial test-patch script for TEZ-1313.
-  TEZ-1864. move initialization code dependent on config params to App.ready.
-  TEZ-1870. Time displayed in the UI is in GMT.
-  TEZ-1858. Docs for deploying/using the Tez UI.
-  TEZ-1859. TestGroupedSplits has commented out test: testGzip.
-  TEZ-1868. Document how to do Windows builds due to with ACL symlink build changes.
-  TEZ-1872. docs/src/site/custom/project-info-report.properties needs license header.
-  TEZ-1850. Enable deploy for tez-ui war.
-  TEZ-1841. Remove range versions for dependencies in tez-ui.
-  TEZ-1854. Failing tests due to host resolution timing out.
-  TEZ-1860. mvn apache-rat:check broken for tez-ui.
-  TEZ-1866. remove the "original" directory under tez-ui
-  TEZ-1591. Add multiDAG session test and move TestLocalMode to tez-tests
-  TEZ-1769. ContainerCompletedWhileRunningTransition should inherit from TerminatedWhileRunningTransition
-  TEZ-1849. Fix tez-ui war file licensing.
-  TEZ-1840. Document TezTaskOutput.
-  TEZ-1576. Class level comment in {{MiniTezCluster}} ends abruptly.
-  TEZ-1838. tez-ui/src/main/webapp/bower.json gets updated after compiling source code.
-  TEZ-1789. Move speculator processing off the central dispatcher.
-  TEZ-1610. Add additional task counters for fetchers, merger.
-  TEZ-1847. Fix package name for MiniTezClusterWithTimeline.
-  TEZ-1846. Build fails with package org.apache.tez.dag.history.logging.ats does not exist.
-  TEZ-1696. Make Tez use the domain-based timeline ACLs.
-  TEZ-1835. TestFaultTolerance#testRandomFailingTasks is timing out
-  TEZ-1832. TestSecureShuffle fails with NoClassDefFoundError: org/bouncycastle/x509/X509V1CertificateGenerator
-  TEZ-1672. Update jetty to use stable 7.x version - 7.6.16.v20140903.
-  TEZ-1822. Docs for Timeline/ACLs/HistoryText.
-  TEZ-1252. Change wording on http://tez.apache.org/team-list.html related to member confusion.
-  TEZ-1805. Tez client DAG cycle detection should detect self loops
-  TEZ-1816. It is possible to receive START event when DAG is failed
-  TEZ-1787. Counters for speculation
-  TEZ-1773. Add attempt failure cause enum to the attempt failed/killed
-  history record
-  TEZ-14. Support MR like speculation capabilities based on latency deviation
-  from the mean
-  TEZ-1733. TezMerger should sort FileChunks on size when merging
-  TEZ-1738. Tez tfile parser for log parsing
-  TEZ-1627. Remove OUTPUT_CONSUMABLE and related Event in TaskAttemptImpl
-  TEZ-1736. Add support for Inputs/Outputs in runtime-library to generate history text data.
-  TEZ-1721. Update INSTALL instructions for clarifying tez client jars
-    compatibility with runtime tarball on HDFS.
-  TEZ-1690. TestMultiMRInput tests fail because of user collisions.
-  TEZ-1687. Use logIdentifier of Vertex for logging.
-  TEZ-1737. Should add taskNum in VertexFinishedEvent.
-  TEZ-1772. Failing tests post TEZ-1737.
-  TEZ-1785. Remove unused snappy-java dependency.
-  TEZ-1685. Remove YARNMaster which is never used.
-  TEZ-1797. Create necessary content for Tez DOAP file.
-  TEZ-1650. Please create a DOAP file for your TLP.
-  TEZ-1697. DAG submission fails if a local resource added is already part of tez.lib.uris
-  TEZ-1060 Add randomness to fault tolerance tests
-  TEZ-1790. DeallocationTaskRequest may been handled before corresponding AllocationTaskRequest in local mode
-
-TEZ-UI CHANGES (TEZ-8):
-  TEZ-1823. default ATS url should be the same host as ui
-  TEZ-1817. Add configuration and build details to README
-  TEZ-1813. display loading and other error messages in tez-ui
-  TEZ-1809. Provide a error bar to report errors to users in Tez-UI
-  TEZ-1810. Do not deploy tez-ui war to maven repo
-  TEZ-1709. Bunch of files in tez-ui missing Apache license header
-  TEZ-1784. Attempt details in tasks table.
-  TEZ-1801. Update build instructions for tez-ui
-  TEZ-1757. Column selector for tables.
-  TEZ-1794. Vertex view needs a task attempt rollup
-  TEZ-1791. breadcrumbs for moving between pages.
-  TEZ-1781. Configurations view ~ New design
-  TEZ-1605. Landing page for Tez UI
-  TEZ-1600. Swimlanes View for Tez UI 
-  TEZ-1799. Enable Cross Origin Support in Tez UI
-  TEZ-1634. Fix compressed IFile shuffle errors
-  TEZ-1615. Skeleton framework for Tez UI
-  TEZ-1604. Task View for Tez UI
-  TEZ-1603. Vertex View for Tez UI.
-  TEZ-1720. Allow filters in all tables and also to pass in filters using url params.
-  TEZ-1708. Make UI part of TEZ build process.
-  TEZ-1617. Shim layer for Tez UI for use within Ambari.
-  TEZ-1741. App view.
-  TEZ-1751. Log view & download links in task and task attempt view.
-  TEZ-1753. Queue in dags view.
-  TEZ-1765. Allow dropdown lists in table filters.
-  TEZ-1606. Counters View for DAG, Vertex, and Task.
-  TEZ-1768. follow up jira to address minor issues in Tez-ui.
-  TEZ-1783. Wrapper in standalone mode.
-  TEZ-1820. Fix wrong links.
-
-Release 0.5.5: Unreleased
-
-INCOMPATIBLE CHANGES
-  TEZ-2552. CRC errors can cause job to run for very long time in large jobs.
-
-ALL CHANGES:
-  TEZ-2781. Fallback to send only TaskAttemptFailedEvent if taskFailed heartbeat fails
-  TEZ-2398. Flaky test: TestFaultTolerance
-  TEZ-2808. Race condition between preemption and container assignment
-  TEZ-2834. Make Tez preemption resilient to incorrect free resource reported
-  by YARN
-  TEZ-2812. Preemption sometimes does not respect heartbeats between preemptions
-  TEZ-814.  Improve heuristic for determining a task has failed outputs
-  TEZ-2768. Log a useful error message when the summary stream cannot be closed when shutting
-  down an AM.
-  TEZ-2745. ClassNotFoundException of user code should fail dag
-  TEZ-2752. logUnsuccessful completion in Attempt should write original finish
-  time to ATS
-  TEZ-2742. VertexImpl.finished() terminationCause hides member var of the
-  same name
-  TEZ-2732. DefaultSorter throws ArrayIndex exceptions on 2047 Mb size sort buffers
-  TEZ-2290. Scale memory for Default Sorter down to a max of 2047 MB if configured higher.
-  TEZ-2734. Add a test to verify the filename generated by OnDiskMerge.
-  TEZ-2687. ATS History shutdown happens before the min-held containers are released
-  TEZ-2629. LimitExceededException in Tez client when DAG has exceeds the default max counters
-  TEZ-2630. TezChild receives IP address instead of FQDN.
-  TEZ-2635. Limit number of attempts being downloaded in unordered fetch.
-  TEZ-2636. MRInput and MultiMRInput should work for cases when there are 0 physical inputs.
-  TEZ-2600. When used with HDFS federation(viewfs) ,tez will throw a error
-
-Release 0.5.4: 2015-06-26
-
-ALL CHANGES:
-  TEZ-2561. Port for TaskAttemptListenerImpTezDag should be configurable
-  TEZ-2566. Allow TaskAttemptFinishedEvent without TaskAttemptStartedEvent when it is KILLED/FAILED
-  TEZ-2475. Fix a potential hang in Tez local mode caused by incorrectly handled interrupts.
-  TEZ-2548. TezClient submitDAG can hang if the AM is in the process of shutting down.
-  TEZ-2533. AM deadlock when shutdown
-  TEZ-2537. mapreduce.map.env and mapreduce.reduce.env need to fall back to mapred.child.env for compatibility
-  TEZ-2304. InvalidStateTransitonException TA_SCHEDULE at START_WAIT during recovery
-  TEZ-2488. Tez AM crashes if a submitted DAG is configured to use invalid resource sizes.
-  TEZ-2080. Localclient should be using tezconf in init instead of yarnconf.
-  TEZ-2369. Add a few unit tests for RootInputInitializerManager.
-  TEZ-2379. org.apache.hadoop.yarn.state.InvalidStateTransitonException:
-    Invalid event: T_ATTEMPT_KILLED at KILLED.
-  TEZ-2397. Translation of LocalResources via Tez plan serialization can be lossy.
-  TEZ-2221. VertexGroup name should be unqiue
-  TEZ-1521. VertexDataMovementEventsGeneratedEvent may be logged twice in recovery log
-  TEZ-2348. EOF exception during UnorderedKVReader.next().
-  TEZ-1560. Invalid state machine handling for V_SOURCE_VERTEX_RECOVERED in recovery.
-  TEZ-2305. MR compatibility sleep job fails with IOException: Undefined job output-path
-  TEZ-2303. ConcurrentModificationException while processing recovery.
-  TEZ-2334. ContainerManagementProtocolProxy modifies IPC timeout conf without making a copy.
-  TEZ-2317. Event processing backlog can result in task failures for short
-  tasks
-  TEZ-2289. ATSHistoryLoggingService can generate ArrayOutOfBoundsException.
-  TEZ-2257. Fix potential NPEs in TaskReporter.
-  TEZ-2192. Relocalization does not check for source.
-  TEZ-2224. EventQueue empty doesn't mean events are consumed in RecoveryService
-  TEZ-2240. Fix toUpperCase/toLowerCase to use Locale.ENGLISH.
-  TEZ-2238. TestContainerReuse flaky
-  TEZ-2217. The min-held-containers being released prematurely
-  TEZ-2214. FetcherOrderedGrouped can get stuck indefinitely when MergeManager misses memToDiskMerging
-  TEZ-1923. FetcherOrderedGrouped gets into infinite loop due to memory pressure
-  TEZ-2219. Should verify the input_name/output_name to be unique per vertex
-  TEZ-2186. OOM with a simple scatter gather job with re-use
-  TEZ-2220. TestTezJobs compile failure in branch 0.5.
-  TEZ-2199. updateLocalResourcesForInputSplits assumes wrongly that split data is on same FS as the default FS.
-  TEZ-2162. org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat is not recognized
-  TEZ-2193. Check returned value from EdgeManagerPlugin before using it
-  TEZ-2133. Secured Impersonation: Failed to delete tez scratch data dir
-  TEZ-2058. Flaky test: TestTezJobs::testInvalidQueueSubmission.
-  TEZ-2037. Should log TaskAttemptFinishedEvent if taskattempt is recovered to KILLED.
-  TEZ-2071. TestAMRecovery should set test names for test DAGs.
-  TEZ-1928. Tez local mode hang in Pig tez local mode.
-  TEZ-1893. Verify invalid -1 parallelism in DAG.verify().
-  TEZ-900. Confusing message for incorrect queue for some tez examples.
-  TEZ-2036. OneToOneEdgeManager should enforce that source and destination
-  tasks have same number
-  TEZ-1895. Vertex reRunning should decrease successfulMembers of VertexGroupInfo.
-  TEZ-2020. For 1-1 edge vertex configured event may be sent incorrectly
-  TEZ-2015. VertexImpl.doneReconfiguringVertex() should check other criteria
-  before sending notification
-  TEZ-2011. InputReadyVertexManager not resilient to updates in parallelism 
-  TEZ-1934. TestAMRecovery may fail due to the execution order is not determined.
-  TEZ-1642. TestAMRecovery sometimes fail.
-  TEZ-1931. Publish tez version info to Timeline.
-  TEZ-1942. Number of tasks show in Tez UI with auto-reduce parallelism is misleading.
-  TEZ-1962. Fix a thread leak in LocalMode.
-  TEZ-1924. Tez AM does not register with AM with full FQDN causing jobs
-  to fail in some environments.
-  TEZ-1878. Task-specific log level override not working in certain conditions.
-  TEZ-1775. Allow setting log level per logger.
-  TEZ-1851. FileSystem counters do not differentiate between different FileSystems.
-  TEZ-1852. Get examples to work in LocalMode.
-  TEZ-1861. Fix failing test: TestOnFileSortedOutput.
-  TEZ-1836. Provide better error messages when tez.runtime.io.sort.mb, spill percentage is incorrectly configured.
-  TEZ-1800. Integer overflow in ExternalSorter.getInitialMemoryRequirement()
-
-Release 0.5.3: 2014-12-10
-
-ALL CHANGES:
-  TEZ-1925. Remove npm WARN messages from the Tez UI build process.
-  TEZ-1758. TezClient should provide YARN diagnostics when the AM crashes
-  TEZ-1742. Improve response time of internal preemption
-  TEZ-1745. TestATSHistoryLoggingService::testATSHistoryLoggingServiceShutdown can be flaky.
-  TEZ-1747. Increase test timeout for TestSecureShuffle.
-  TEZ-1746. Flaky test in TestVertexImpl and TestExceptionPropagation.
-  TEZ-1749. Increase test timeout for TestLocalMode.testMultipleClientsWithSession
-  TEZ-1750. Add a DAGScheduler which schedules tasks only when sources have been scheduled.
-  TEZ-1761. TestRecoveryParser::testGetLastInProgressDAG fails in similar manner to TEZ-1686.
-  TEZ-1770. Handle ConnectExceptions correctly when establishing connections to an NM which may be down.
-  TEZ-1774. AppLaunched event for Timeline does not have start time set.
-  TEZ-1780. tez-api is missing jersey dependencies.
-  TEZ-1796. Use of DeprecationDelta broke build against 2.2 Hadoop.
-  TEZ-1818. Problem loading tez-api-version-info.properties in case current context classloader
-    in not pointing to Tez jars.
-  TEZ-1808. Job can fail since name of intermediate files can be too long in specific situation.
-
-Release 0.5.2: 2014-11-07
-
-INCOMPATIBLE CHANGES
-  TEZ-1666. UserPayload should be null if the payload is not specified.
-    0.5.1 client cannot talk to 0.5.2 AMs (TEZ-1666 and TEZ-1664).
-    context.getUserPayload can now return null, apps may need to add defensive code.
-  TEZ-1699. Vertex.setParallelism should throw an exception for invalid
-  invocations
-  TEZ-1700. Replace containerId from TaskLocationHint with [TaskIndex+Vertex]
-  based affinity
-
-ALL CHANGES:
-  TEZ-1620. Wait for application finish before stopping MiniTezCluster
-  TEZ-1621. Should report error to AM before shuting down TezChild
-  TEZ-1634. Fix compressed IFile shuffle errors
-  TEZ-1648. Update website after 0.5.1
-  TEZ-1614. Use setFromConfiguration() in SortMergeJoinExample to demonstrate the usage
-  TEZ-1641. Add debug logs in VertexManager to help debugging custom VertexManagerPlugins
-  TEZ-1645. Add support for specifying additional local resources via config.
-  TEZ-1646. Add support for augmenting classpath via configs.
-  TEZ-1647. Issue with caching of events in VertexManager::onRootVertexInitialized.
-  TEZ-1470. Recovery fails due to TaskAttemptFinishedEvent being recorded multiple times for the same task.
-  TEZ-1649. ShuffleVertexManager auto reduce parallelism can cause jobs to hang indefinitely.
-  TEZ-1566. Reduce log verbosity.
-  TEZ-1083. Enable IFile RLE for DefaultSorter.
-  TEZ-1637. Improved shuffle error handling across NM restarts.
-  TEZ-1479. Disambiguate (refactor) between ShuffleInputEventHandlers and Fetchers.
-  TEZ-1665. DAGScheduler should provide a priority range instead of an exact
-  priority
-  TEZ-1632. NPE at TestPreemption.testPreemptionWithoutSession
-  TEZ-1674. Rename configuration parameters related to counters / memory scaling.
-  TEZ-1176. Set parallelism should end up sending an update to ATS if numTasks are updated at run-time.
-  TEZ-1658. Additional data generation to Timeline for UI.
-  TEZ-1676. Fix failing test in TestHistoryEventTimelineConversion.
-  TEZ-1673. Update the default value for allowed node failures, num events per heartbeat
-  and counter update interval.
-  TEZ-1462. Remove unnecessary SuppressWarnings.
-  TEZ-1633. Fixed expected values in TestTaskRecovery.testRecovery_OneTAStarted.
-  TEZ-1669. yarn-swimlanes.sh throws error post TEZ-1556.
-  TEZ-1682. Tez AM hangs at times when there are task failures.
-  TEZ-1683. Do ugi::getGroups only when necessary when checking ACLs.
-  TEZ-1584. Restore counters from DAGFinishedEvent when DAG is completed.
-  TEZ-1525. BroadcastLoadGen testcase.
-  TEZ-1686. TestRecoveryParser.testGetLastCompletedDAG fails sometimes
-  TEZ-1667. Add a system test for InitializerEvents.
-  TEZ-1668. InputInitializers should be able to register for Vertex state updates in the constructor.
-  TEZ-1656. Grouping of splits should maintain the original ordering of splits
-  within a group
-  TEZ-1396. Grouping should generate consistent groups when given the same set
-  of splits
-  TEZ-1210. TezClientUtils.localizeDagPlanAsText() needs to be fixed for
-  session mode
-  TEZ-1629. Replace ThreadPool's default RejectedExecutionHandler in Cont

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