Commit Graph

153 Commits

Author SHA1 Message Date
Clint Wylie e6e068ce60 Add support for 'maxTotalRows' to incremental publishing kafka indexing task and appenderator based realtime task (#6129)
* resolves #5898 by adding maxTotalRows to incremental publishing kafka index task and appenderator based realtime indexing task, as available in IndexTask

* address review comments

* changes due to review

* merge fail
2018-09-07 13:17:49 -07:00
Gian Merlino 431d3d8497
Rename io.druid to org.apache.druid. (#6266)
* Rename io.druid to org.apache.druid.

* Fix META-INF files and remove some benchmark results.

* MonitorsConfig update for metrics package migration.

* Reorder some dimensions in inner queries for some reason.

* Fix protobuf tests.
2018-08-30 09:56:26 -07:00
Jonathan Wei c9a27e3e8e
Don't let catch/finally suppress main exception in IncrementalPublishingKafkaIndexTaskRunner (#6258) 2018-08-28 16:12:02 -07:00
Jihoon Son bda5a8a95e Fix NPE in KafkaSupervisor.checkpointTaskGroup (#6206)
* Fix NPE in KafkaSupervisor.checkpointTaskGroup

* address comments

* address comment
2018-08-26 22:23:33 -07:00
Jihoon Son 64d33eef7e Fix timeout in KafkaSupervisorTest.testCheckpointForInactiveTaskGroup (#6207)
* Fix timeout in KafkaSupervisorTest.testCheckpointForInactiveTaskGroup

* fix npe

* add taskRunner.getRunningTasks()
2018-08-26 19:59:01 -06:00
Benedict Jin 3647d4c94a Make time-related variables more readable (#6158)
* Make time-related variables more readable

* Patch some improvements from the code reviewer

* Remove unnecessary boxing of Long type variables
2018-08-21 15:29:40 -07:00
Benedict Jin 7d4b2d51e8 Fix assertionError at testCheckpointForInactiveTaskGroup in KafkaSupervisorTest (#6192) 2018-08-21 11:33:45 -07:00
Jihoon Son 2bfe1b6a5a Fix NPE for taskGroupId when rolling update (#6168)
* Fix NPE for taskGroupId

* missing changes

* fix wrong annotation

* fix potential race

* keep baseSequenceName

* make deprecated old param
2018-08-17 10:15:45 -07:00
Gian Merlino 5ce3185b9c Fix three bugs with segment publishing. (#6155)
* Fix three bugs with segment publishing.

1. In AppenderatorImpl: always use a unique path if requested, even if the segment
   was already pushed. This is important because if we don't do this, it causes
   the issue mentioned in #6124.
2. In IndexerSQLMetadataStorageCoordinator: Fix a bug that could cause it to return
   a "not published" result instead of throwing an exception, when there was one
   metadata update failure, followed by some random exception. This is done by
   resetting the AtomicBoolean that tracks what case we're in, each time the
   callback runs.
3. In BaseAppenderatorDriver: Only kill segments if we get an affirmative false
   publish result. Skip killing if we just got some exception. The reason for this
   is that we want to avoid killing segments if they are in an unknown state.

Two other changes to clarify the contracts a bit and hopefully prevent future bugs:

1. Return SegmentPublishResult from TransactionalSegmentPublisher, to make it
more similar to announceHistoricalSegments.
2. Make it explicit, at multiple levels of javadocs, that a "false" publish result
must indicate that the publish _definitely_ did not happen. Unknown states must be
exceptions. This helps BaseAppenderatorDriver do the right thing.

* Remove javadoc-only import.

* Updates.

* Fix test.

* Fix tests.
2018-08-15 13:55:53 -07:00
Jihoon Son a7ca4589dd Fix race in testCheckpointForUnknownTaskGroup() of KafkaSupervisorTest (#6153) 2018-08-11 08:26:46 -07:00
Gian Merlino 3525d4059e
Cache: Add maxEntrySize config, make groupBy cacheable by default. (#5108)
* Cache: Add maxEntrySize config.

The idea is this makes it more feasible to cache query types that
can potentially generate large result sets, like groupBy and select,
without fear of writing too much to the cache per query.

Includes a refactor of cache population code in CachingQueryRunner and
CachingClusteredClient, such that they now use the same CachePopulator
interface with two implementations: one for foreground and one for
background.

The main reason for splitting the foreground / background impls is
that the foreground impl can have a more effective implementation of
maxEntrySize. It can stop retaining subvalues for the cache early.

* Add CachePopulatorStats.

* Fix whitespace.

* Fix docs.

* Fix various tests.

* Add tests.

* Fix tests.

* Better tests

* Remove conflict markers.

* Fix licenses.
2018-08-07 10:23:15 -07:00
Jihoon Son 56ab4363ea
Native parallel batch indexing without shuffle (#5492)
* Native parallel indexing without shuffle

* fix build

* fix ci

* fix ingestion without intervals

* fix retry

* fix retry

* add it test

* use chat handler

* fix build

* add docs

* fix ITUnionQueryTest

* fix failures

* disable metrics reporting

* working

* Fix split of static-s3 firehose

* Add endpoints to supervisor task and a unit test for endpoints

* increase timeout in test

* Added doc

* Address comments

* Fix overlapping locks

* address comments

* Fix static s3 firehose

* Fix test

* fix build

* fix test

* fix typo in docs

* add missing maxBytesInMemory to doc

* address comments

* fix race in test

* fix test

* Rename to ParallelIndexSupervisorTask

* fix teamcity

* address comments

* Fix license

* addressing comments

* addressing comments

* indexTaskClient-based segmentAllocator instead of CountingActionBasedSegmentAllocator

* Fix race in TaskMonitor and move HTTP endpoints to supervisorTask from runner

* Add more javadocs

* use StringUtils.nonStrictFormat for logging

* fix typo and remove unused class

* fix tests

* change package

* fix strict build

* tmp

* Fix overlord api according to the recent change in master

* Fix it test
2018-08-06 23:59:42 -07:00
Jihoon Son ef2d6e9118
Fix IllegalArgumentException in TaskLockBox.syncFromStorage() when updating from 0.12.x to 0.12.2 (#6086)
* Fix TaskLockBox.syncFromStorage() when updating from 0.12.x to 0.12.2

* Make the priority of taskLock nullable

* fix test

* fix build
2018-08-03 17:13:44 -07:00
Nishant Bangarwa 75c8a87ce1 Part 2 of changes for SQL Compatible Null Handling (#5958)
* Part 2 of changes for SQL Compatible Null Handling

* Review comments - break lines longer than 120 characters

* review comments

* review comments

* fix license

* fix test failure

* fix CalciteQueryTest failure

* Null Handling - Review comments

* review comments

* review comments

* fix checkstyle

* fix checkstyle

* remove unrelated change

* fix test failure

* fix failing test

* fix travis failures

* Make StringLast and StringFirst aggregators nullable and fix travis failures
2018-08-02 08:20:25 -07:00
Benedict Jin 331a0afb98 Remove redundant type parameters and enforce some other style and inspection rules (#5980)
* Various changes about druid-services module

* Patch improvements from reviewer

* Add ToArrayCallWithZeroLengthArrayArgument & ArraysAsListWithZeroOrOneArgument into inspection profile

* Fix ArraysAsListWithZeroOrOneArgument

* Fix conflict

* Fix ToArrayCallWithZeroLengthArrayArgument

* Fix AliEqualsAvoidNull

* Remove blank line

* Remove unused import clauses

* Fix code style in TopNQueryRunnerTest

* Fix conflict

* Don't use Collections.singletonList when converting the type of array type

* Add argLine into maven-surefire-plugin in druid-process module & increase the timeout value for testMoveSegment testcase

* Roll back the latest commit

* Add java.io.File#toURL() into druid-forbidden-apis

* Using Boolean.parseBoolean instead of Boolean.valueOf for CliCoordinator#isOverlord

* Add a new regexp element into stylecode xml file

* Fix style error for new regexp

* Set the level of ArraysAsListWithZeroOrOneArgument as WARNING

* Fix style error for new regexp

* Add option BY_LEVEL for ToArrayCallWithZeroLengthArrayArgument in inspection profile

* Roll back the level as ToArrayCallWithZeroLengthArrayArgument as ERROR

* Add toArray(new Object[0]) regexp into checkstyle config file & fix them

* Set the level of ArraysAsListWithZeroOrOneArgument as ERROR & Roll back the level of ToArrayCallWithZeroLengthArrayArgument as WARNING until Youtrack fix it

* Add a comment for string equals regexp in checkstyle config

* Fix code format

* Add RedundantTypeArguments as ERROR level inspection

* Fix cannot resolve symbol datasource
2018-07-27 16:56:49 -05:00
Jihoon Son 1524af703d
Fix IllegalArgumentException in TaskLockBox.syncFromStorage() (#6050) 2018-07-27 10:43:32 -07:00
Jihoon Son b7d42edb0f Check the kafka topic when compacring checkpoints from tasks and the one stored in metastore (#6015) 2018-07-20 11:20:23 -07:00
Jihoon Son c48aa74a30 Fix NPE while handling CheckpointNotice in KafkaSupervisor (#5996)
* Fix NPE while handling CheckpointNotice

* fix code style

* Fix test

* fix test

* add a log for creating a new taskGroup

* fix backward compatibility in KafkaIOConfig
2018-07-13 17:14:57 -07:00
Gian Merlino 04ea3c9f8c
Update license headers. (#5976)
* Update license headers.

For compliance with http://www.apache.org/legal/src-headers.html.

* More license adjustments.

* Fix mistakenly edited package line.
2018-07-11 09:55:18 -07:00
Gian Merlino 948e73da77 Extend various test timeouts. (#5978)
False failures on Travis due to spurious timeout (in turn due to noisy
neighbors) is a bigger problem than legitimate failures taking too long
to time out. So it makes sense to extend timeouts.
2018-07-10 13:02:14 -07:00
Surekha 9bece8ce1e Prevent KafkaSupervisor NPE in generateSequenceName (#5900) (#5902)
* Prevent KafkaSupervisor NPE in checkPendingCompletionTasks (#5900)

* throw IAE in generateSequenceName if groupId not found in taskGroups
* add null check in checkPendingCompletionTasks

* Add warn log in checkPendingCompletionTasks

* Address PR comments

Replace warn with error log

* Address PR comments

* change signature of generateSequenceName to take a TaskGroup object instead of int

* Address comments

* Remove unnecessary method from KafkaSupervisorTest
2018-07-04 23:45:42 -07:00
Jihoon Son 1ccabab98e Fix the broken Appenderator contract in KafkaIndexTask (#5905)
* Fix broken Appenderator contract in KafkaIndexTask

* fix build

* add publishFuture

* reuse sequenceToUse if possible
2018-07-03 13:31:29 -07:00
Jihoon Son b76a056c14 Fix ConcurrentModificationException in IncrementalPublishingKafkaIndexTaskRunner (#5907)
* Fix ConcurrentModificationException in IncrementalPublishingKafkaIndexTaskRunner

* fix lock and add comments
2018-06-30 17:20:41 -07:00
Surekha 0f429298cf Fix Kafka Indexing task pause forever if no events in taskDuration (#5656) (#5899)
* Fix Kafka Indexing task pause forever (#5656)

* Fix Nullpointer Exception in overlord if taskGroups does not contain the groupId
* If the endOffset is same as startOffset, still let the task resume instead of returning
   endOffsets early which causes the tasks to pause forever and ultimately fail on timeout

* Address PR comment

*Remove the null check and do not return null from generateSequenceName
2018-06-25 19:29:36 -07:00
Jihoon Son 8c5ded0fad
Splitting KafkaIndexTask for better code maintenance (#5854)
* Refactoring KafkaIndexTask for better code maintenance

* fix bug

* fix test

* add annotation

* fix checkstyle

* remove SetEndOffsetsResult
2018-06-22 13:00:03 -07:00
Surekha 8619adb5b9 Improve task retrieval APIs on Overlord (#5801)
* Add the new tasks api in overlordResource

It takes 4 optional query params
* state(pending/running/waiting/compelte)
* dataSource
* interval (applies to completed tasks)
* maxCompletedTasks (applies to completed tasks)

If all params are null, the api returns all the tasks

* Add the state to each task returned by tasks endpoint

* divide active tasks into waiting, pending or running
* Add more unit tests

* Add UNKNOWN state to TaskState

* Fix the authorization calls

* WIP: PR comments

Added new class to capture task info for caching
Other refactoring

* Refactoring : move TaskStatus class to druid-api

so it can be accessed within server
And other related classes like TaskState and TaskStatusPlus are in api

* Remove unused class and apis accessing it

* Add a separate cache for recently completed tasks

This is to mainly capture the task type from payload

* Ignore a test

* Add a RuntimeTaskState to encompass all states a task can be in

* Revert "Add a RuntimeTaskState to encompass all states a task can be in"

This reverts commit 2a527a0731.

* Fix wrong api call

* Fix and unignore tests

* Remove waiting,pending state from TaskState

* Add RunnerTaskState

* Missed the annotation runnerStatusCode

* Fix the creationTime

* Fix the createdTime and queueInsertionTime for running/active tasks
* Clean up tests

* Add javadocs

* Potentially fix the teamcity build

* Address PR comments

*Get rid of TaskInfoBuilder
*Make TaskInfoMapper static nested class
*Other changes

* fix import in MaterializedViewSupervisor after merge

* Address PR comments on

* Replace global cache with local map
* combine multiple queries into one
* Removed unused code

* Fix unit tests

Fix a bug in securedTaskStatusPlus

* Remove getRecentlyFinishedTaskStatuses method

Change TaskInfoMapper signature to add generic type

* Address PR comments

* Passed datasource as argument to be used in sql query
* Other minor fixes

* Address PR comments

*Some minor changes, rename method, spacing changes

* Add early auth check if datasource is not null

* Fix test case

* Add max limit to getRecentlyFinishedTaskInfo in HeapMemoryTaskStorage
* Add TaskLocation to Anytask object

* Address PR comments

* Fix a bug in test case causing ClassCastException
2018-06-19 11:34:59 -07:00
Jonathan Wei 684b5d18c1
Moving averages for ingestion row stats (#5748)
* Moving averages for ingestion row stats

* PR comments

* Make RowIngestionMeters extensible

* test and checkstyle fixes

* More PR comments

* Fix metrics

* Add some comments

* PR comments

* Comments
2018-06-05 09:08:57 -07:00
Kirill Kozlov 67d0b0ee42 Add taskType dimension to task metrics (#5664) 2018-05-07 09:42:26 -07:00
Surekha 13c616ba24 'maxBytesInMemory' tuningConfig introduced for ingestion tasks (#5583)
* This commit introduces a new tuning config called 'maxBytesInMemory' for ingestion tasks

Currently a config called 'maxRowsInMemory' is present which affects how much memory gets
used for indexing.If this value is not optimal for your JVM heap size, it could lead
to OutOfMemoryError sometimes. A lower value will lead to frequent persists which might
be bad for query performance and a higher value will limit number of persists but require
more jvm heap space and could lead to OOM.
'maxBytesInMemory' is an attempt to solve this problem. It limits the total number of bytes
kept in memory before persisting.

 * The default value is 1/3(Runtime.maxMemory())
 * To maintain the current behaviour set 'maxBytesInMemory' to -1
 * If both 'maxRowsInMemory' and 'maxBytesInMemory' are present, both of them
   will be respected i.e. the first one to go above threshold will trigger persist

* Fix check style and remove a comment

* Add overlord unsecured paths to coordinator when using combined service (#5579)

* Add overlord unsecured paths to coordinator when using combined service

* PR comment

* More error reporting and stats for ingestion tasks (#5418)

* Add more indexing task status and error reporting

* PR comments, add support in AppenderatorDriverRealtimeIndexTask

* Use TaskReport instead of metrics/context

* Fix tests

* Use TaskReport uploads

* Refactor fire department metrics retrieval

* Refactor input row serde in hadoop task

* Refactor hadoop task loader names

* Truncate error message in TaskStatus, add errorMsg to task report

* PR comments

* Allow getDomain to return disjointed intervals (#5570)

* Allow getDomain to return disjointed intervals

* Indentation issues

* Adding feature thetaSketchConstant to do some set operation in PostAgg (#5551)

* Adding feature thetaSketchConstant to do some set operation in PostAggregator

* Updated review comments for PR #5551 - Adding thetaSketchConstant

* Fixed CI build issue

* Updated review comments 2 for PR #5551 - Adding thetaSketchConstant

* Fix taskDuration docs for KafkaIndexingService (#5572)

* With incremental handoff the changed line is no longer true.

* Add doc for automatic pendingSegments (#5565)

* Add missing doc for automatic pendingSegments

* address comments

* Fix indexTask to respect forceExtendableShardSpecs (#5509)

* Fix indexTask to respect forceExtendableShardSpecs

* add comments

* Deprecate spark2 profile in pom.xml (#5581)

Deprecated due to https://github.com/druid-io/druid/pull/5382

* CompressionUtils: Add support for decompressing xz, bz2, zip. (#5586)

Also switch various firehoses to the new method.

Fixes #5585.

* This commit introduces a new tuning config called 'maxBytesInMemory' for ingestion tasks

Currently a config called 'maxRowsInMemory' is present which affects how much memory gets
used for indexing.If this value is not optimal for your JVM heap size, it could lead
to OutOfMemoryError sometimes. A lower value will lead to frequent persists which might
be bad for query performance and a higher value will limit number of persists but require
more jvm heap space and could lead to OOM.
'maxBytesInMemory' is an attempt to solve this problem. It limits the total number of bytes
kept in memory before persisting.

 * The default value is 1/3(Runtime.maxMemory())
 * To maintain the current behaviour set 'maxBytesInMemory' to -1
 * If both 'maxRowsInMemory' and 'maxBytesInMemory' are present, both of them
   will be respected i.e. the first one to go above threshold will trigger persist

* Address code review comments

* Fix the coding style according to druid conventions
* Add more javadocs
* Rename some variables/methods
* Other minor issues

* Address more code review comments

* Some refactoring to put defaults in IndexTaskUtils
* Added check for maxBytesInMemory in AppenderatorImpl
* Decrement bytes in abandonSegment
* Test unit test for multiple sinks in single appenderator
* Fix some merge conflicts after rebase

* Fix some style checks

* Merge conflicts

* Fix failing tests

Add back check for 0 maxBytesInMemory in OnHeapIncrementalIndex

* Address PR comments

* Put defaults for maxRows and maxBytes in TuningConfig
* Change/add javadocs
* Refactoring and renaming some variables/methods

* Fix TeamCity inspection warnings

* Added maxBytesInMemory config to HadoopTuningConfig

* Updated the docs and examples

* Added maxBytesInMemory config in docs
* Removed references to maxRowsInMemory under tuningConfig in examples

* Set maxBytesInMemory to 0 until used

Set the maxBytesInMemory to 0 if user does not set it as part of tuningConfing
and set to part of max jvm memory when ingestion task starts

* Update toString in KafkaSupervisorTuningConfig

* Use correct maxBytesInMemory value in AppenderatorImpl

* Update DEFAULT_MAX_BYTES_IN_MEMORY to 1/6 max jvm memory

Experimenting with various defaults, 1/3 jvm memory causes OOM

* Update docs to correct maxBytesInMemory default value

* Minor to rename and add comment

* Add more details in docs

* Address new PR comments

* Address PR comments

* Fix spelling typo
2018-05-03 16:25:58 -07:00
David Lim 8ec2d2fe18 Use unique segment paths for Kafka indexing (#5692)
* support unique segment file paths

* forbiddenapis

* code review changes

* code review changes

* code review changes

* checkstyle fix
2018-04-29 21:59:48 -07:00
Jonathan Wei 969342cd28
More error reporting and stats for ingestion tasks (#5418)
* Add more indexing task status and error reporting

* PR comments, add support in AppenderatorDriverRealtimeIndexTask

* Use TaskReport instead of metrics/context

* Fix tests

* Use TaskReport uploads

* Refactor fire department metrics retrieval

* Refactor input row serde in hadoop task

* Refactor hadoop task loader names

* Truncate error message in TaskStatus, add errorMsg to task report

* PR comments
2018-04-05 21:38:57 -07:00
Jonathan Wei 723f7ac550
Add support for task reports, upload reports to deep storage (#5524)
* Add support for task reports, upload reports to deep storage

* PR comments

* Better name for method

* Fix report file upload

* Use TaskReportFileWriter

* Checkstyle

* More PR comments
2018-04-02 12:10:56 -07:00
Kirill Kozlov 8878a7ff94 Replace guava Charsets with native java StandardCharsets (#5545) 2018-03-28 21:00:08 -07:00
Roman Leventov 693e3575f9
Remove unused code and exception declarations (#5461)
* Remove unused code and exception declarations

* Address comments

* Remove redundant Exception declarations

* Make FirehoseFactoryV2.connect() to throw IOException again
2018-03-16 22:11:12 +01:00
Jihoon Son 9b2a25bd84
Refactor supervisorReport to be type-safe (#5479)
* refactor supervisorReport

* use primitives
2018-03-13 09:28:44 -07:00
Niraja Mishra 96cebfc222 As part of this feature, implemented a new endpoint to get running tasks by datasources (#5260)
and added datasource information as part of existing endpoint /druid/indexer/v1/runningTasks.

Added junit test cases for the newly implemented API and fixed existing junit test cases.

Fixed review comments - added new method getCreatedDateTimeAndDataSource into TaskStorageQueryAdapter class
and formatted changed files
2018-03-12 23:48:11 -07:00
Clint Wylie f948066710 KafkaIndexTask remove branch with unreachable code (#5434) 2018-03-02 17:26:12 -08:00
Jihoon Son 16e08c9adb add task priority for kafka indexing (#5444) 2018-02-28 22:29:23 -08:00
Parag Jain fba13d8978 time based checkpointing for Kafka Indexing Service (#5255)
* time based checkpointing

* add test and fix issue

* fix comments

* fix formatting

* update docs
2018-02-15 20:57:02 -08:00
Jihoon Son cd929000ca
Change early publishing to early pushing in indexTask & refactor AppenderatorDriver (#5297)
* Fix early publishing to early pushing in batch indexing & refactor appenderatorDriver

* fix compile

* rename and add more javadocs

* Fix conflicts

* address comments

* revert await executors

* fix test
2018-02-14 12:48:33 -08:00
Jonathan Wei b234a119ac Log exceptions thrown before persist() for indexing tasks (#5374)
* Log exceptions thrown before persist() for indexing tasks

* PR comment
2018-02-13 09:20:07 -08:00
Roman Leventov e64ffb10c2 Standartize on using Integer.BYTES instead of Ints.BYTES from Guava, same for other primitives (#5366) 2018-02-07 13:24:30 -08:00
Gian Merlino 9a62b02cb7 Extensions: Option to load classes from extension jars first. (#5321)
The behavior is configurable through druid.extensions.useExtensionClassloaderFirst.
It is useful when extensions want to load a dependency different from one provided
by Druid, for example a different version of geoip or protobuf.
2018-02-06 16:14:03 +05:30
Gian Merlino 7e02408510 Update versions to 0.13.0-SNAPSHOT. (#5323) 2018-02-02 12:06:38 -06:00
Jonathan Wei 80419752b5 Add metamx emitter, http clients, and metrics packages to druid java-util (#5289)
* Add metamx java-util emitter, http clients, and metrics packages to druid java-util

* Remove metamx java-util from pom.xml files

* Checkstyle fixes

* Import fix

* TeamCity inspection fixes

* Use slf4j, move some version defs to master pom.xml

* Use parent jvm-attach-api and maven-surefire-plugin versions

* Add ] to log msg, suppress inspection
2018-01-24 22:10:36 +01:00
Jihoon Son 241efafbb2
Automatic compaction by coordinators (#5102)
* Automatic compaction by coordinator

* add links

* skip compaction for very recent segments if they are small

* fix finding search interval

* fix finding search interval

* fix TimelineHolder iteration

* add test for newestSegmentFirstPolicy

* add CompactionSegmentIterator

* add numTargetCompactionSegments

* add missing config

* fix skipping huge shards

* fix handling large number of segments per shard

* fix test failure

* change recursive call to loop

* fix logging

* fix build

* fix test failure

* address comments

* change dataSources type

* check running pendingTasks at each run

* fix test

* address comments

* fix build

* fix test

* address comments

* address comments

* add doc for segment size optimization

* address comment
2018-01-13 13:52:37 +09:00
Roman Leventov 8877ce38d6
Enforce modifier order with Checkstyle (#5246) 2018-01-11 09:50:42 +01:00
Parag Jain 83c6c48bed Fix state check bug in Kafka Index Task (#5204)
* fix state check for replacement task

* fix comments

* rebase with master
2018-01-08 18:01:36 -08:00
Jonathan Wei cdd374a417 Throw away rows with timestamps beyond long bounds in kafka indexing (#5215)
* Throw away rows with timestamps beyond long bounds in kafka indexing

* PR comments
2018-01-08 17:40:50 -06:00
Roman Leventov 579f9fbedf Add IndexedInts.debugToString() and AbstractIndex.toString(); Add Sequence.toList() and limit() (#5175)
* Add IndexedInts.debugToString() and AbstractIndex.toString()

* Fix AppenderatorTest
2018-01-04 09:56:47 +09:00