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ASF GitHub Bot logged work on MAPREDUCE-7341: --------------------------------------------- Author: ASF GitHub Bot Created on: 14/Jun/21 21:22 Start Date: 14/Jun/21 21:22 Worklog Time Spent: 10m Work Description: hadoop-yetus commented on pull request #2971: URL: https://github.com/apache/hadoop/pull/2971#issuecomment-861004924 :broken_heart: **-1 overall** | Vote | Subsystem | Runtime | Logfile | Comment | |:----:|----------:|--------:|:--------:|:-------:| | +0 :ok: | reexec | 0m 37s | | Docker mode activated. | |||| _ Prechecks _ | | +1 :green_heart: | dupname | 0m 2s | | No case conflicting files found. | | +0 :ok: | codespell | 0m 1s | | codespell was not available. | | +0 :ok: | markdownlint | 0m 1s | | markdownlint was not available. | | +1 :green_heart: | @author | 0m 0s | | The patch does not contain any @author tags. | | +1 :green_heart: | test4tests | 0m 0s | | The patch appears to include 21 new or modified test files. | |||| _ trunk Compile Tests _ | | +0 :ok: | mvndep | 12m 47s | | Maven dependency ordering for branch | | +1 :green_heart: | mvninstall | 20m 25s | | trunk passed | | +1 :green_heart: | compile | 21m 30s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | compile | 18m 21s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +1 :green_heart: | checkstyle | 3m 51s | | trunk passed | | +1 :green_heart: | mvnsite | 4m 4s | | trunk passed | | +1 :green_heart: | javadoc | 3m 14s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | javadoc | 3m 45s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +0 :ok: | spotbugs | 0m 42s | | branch/hadoop-project no spotbugs output file (spotbugsXml.xml) | | +1 :green_heart: | shadedclient | 14m 49s | | branch has no errors when building and testing our client artifacts. | |||| _ Patch Compile Tests _ | | +0 :ok: | mvndep | 0m 28s | | Maven dependency ordering for patch | | +1 :green_heart: | mvninstall | 2m 15s | | the patch passed | | +1 :green_heart: | compile | 20m 47s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | -1 :x: | javac | 20m 47s | [/results-compile-javac-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/results-compile-javac-root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt) | root-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 generated 2 new + 1985 unchanged - 1 fixed = 1987 total (was 1986) | | +1 :green_heart: | compile | 21m 30s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | -1 :x: | javac | 21m 30s | [/results-compile-javac-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/results-compile-javac-root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt) | root-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 generated 2 new + 1858 unchanged - 1 fixed = 1860 total (was 1859) | | -1 :x: | blanks | 0m 0s | [/blanks-eol.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/blanks-eol.txt) | The patch has 7 line(s) that end in blanks. Use git apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply | | -0 :warning: | checkstyle | 4m 26s | [/results-checkstyle-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/results-checkstyle-root.txt) | root: The patch generated 59 new + 0 unchanged - 0 fixed = 59 total (was 0) | | +1 :green_heart: | mvnsite | 4m 23s | | the patch passed | | +1 :green_heart: | xml | 0m 9s | | The patch has no ill-formed XML file. | | +1 :green_heart: | javadoc | 3m 23s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | javadoc | 3m 52s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +0 :ok: | spotbugs | 0m 34s | | hadoop-project has no data from spotbugs | | -1 :x: | spotbugs | 2m 11s | [/new-spotbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.html](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/new-spotbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.html) | hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core generated 2 new + 0 unchanged - 0 fixed = 2 total (was 0) | | +1 :green_heart: | shadedclient | 19m 30s | | patch has no errors when building and testing our client artifacts. | |||| _ Other Tests _ | | +1 :green_heart: | unit | 0m 31s | | hadoop-project in the patch passed. | | -1 :x: | unit | 12m 21s | [/patch-unit-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt) | hadoop-common in the patch failed. | | -1 :x: | unit | 0m 41s | [/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt) | hadoop-mapreduce-client-core in the patch failed. | | -1 :x: | unit | 0m 40s | [/patch-unit-hadoop-tools_hadoop-azure.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/patch-unit-hadoop-tools_hadoop-azure.txt) | hadoop-azure in the patch failed. | | +0 :ok: | asflicense | 0m 42s | | ASF License check generated no output? | | | | 216m 30s | | | | Reason | Tests | |-------:|:------| | SpotBugs | module:hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core | | | Dead store to dirs in org.apache.hadoop.mapreduce.lib.output.committer.manifest.CommitJobStage.executeStage(Pair) At CommitJobStage.java:org.apache.hadoop.mapreduce.lib.output.committer.manifest.CommitJobStage.executeStage(Pair) At CommitJobStage.java:[line 89] | | | Dead store to jobUUID in org.apache.hadoop.mapreduce.lib.output.committer.manifest.ManifestCommitterSupport.buildJobUUID(Configuration, JobID) At ManifestCommitterSupport.java:org.apache.hadoop.mapreduce.lib.output.committer.manifest.ManifestCommitterSupport.buildJobUUID(Configuration, JobID) At ManifestCommitterSupport.java:[line 93] | | Failed junit tests | hadoop.util.TestDataChecksum | | Subsystem | Report/Notes | |----------:|:-------------| | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/artifact/out/Dockerfile | | GITHUB PR | https://github.com/apache/hadoop/pull/2971 | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml markdownlint | | uname | Linux 1db1a11bf3a2 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | dev-support/bin/hadoop.sh | | git revision | trunk / 72b3aeb88c990b38e6c3b510d44c1961cb1ba167 | | Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/testReport/ | | Max. process+thread count | 674 (vs. ulimit of 5500) | | modules | C: hadoop-project hadoop-common-project/hadoop-common hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core hadoop-tools/hadoop-azure U: . | | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2971/16/console | | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 | | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org | This message was automatically generated. -- This is an automated message from the Apache Git Service. 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For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 610943) Time Spent: 5h 10m (was: 5h) > Add a task-manifest output committer for Azure and GCS > ------------------------------------------------------ > > Key: MAPREDUCE-7341 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7341 > Project: Hadoop Map/Reduce > Issue Type: New Feature > Components: client > Affects Versions: 3.3.1 > Reporter: Steve Loughran > Assignee: Steve Loughran > Priority: Major > Labels: pull-request-available > Time Spent: 5h 10m > Remaining Estimate: 0h > > Add a task-manifest output committer for Azure and GCS > The S3A committers are very popular in Spark on S3, as they are both correct > and fast. > The classic FileOutputCommitter v1 and v2 algorithms are all that is > available for Azure ABFS and Google GCS, and they have limitations. > The v2 algorithm isn't safe in the presence of failed task attempt commits, > so we > recommend the v1 algorithm for Azure. But that is slow because it > sequentially lists > then renames files and directories, one-by-one. The latencies of list > and rename make things slow. > Google GCS lacks the atomic directory rename required for v1 correctness; > v2 can be used (which doesn't have the job commit performance limitations), > but it's not safe. > Proposed > * Add a new FileOutputFormat committer which uses an intermediate manifest to > pass the list of files created by a TA to the job committer. > * Job committer to parallelise reading these task manifests and submit all the > rename operations into a pool of worker threads. (also: mkdir, directory > deletions on cleanup) > * Use the committer plugin mechanism added for s3a to make this the default > committer for ABFS > (i.e. no need to make any changes to FileOutputCommitter) > * Add lots of IOStatistics instrumentation + logging of operations in the > JobCommit > for visibility of where delays are occurring. > * Reuse the S3A committer _SUCCESS JSON structure to publish IOStats & other > data > for testing/support. > This committer will be faster than the V1 algorithm because of the > parallelisation, and > because a manifest written by create-and-rename will be exclusive to a single > task > attempt, delivers the isolation which the v2 committer lacks. > This is not an attempt to do an iceberg/hudi/delta-lake style manifest-only > format > for describing the contents of a table; the final output is still a directory > tree > which must be scanned during query planning. > As such the format is still suboptimal for cloud storage -but at least we > will have > faster job execution during the commit phases. > > Note: this will also work on HDFS, where again, it should be faster than > the v1 committer. However the target is very much Spark with ABFS and GCS; no > plans to worry about MR as that simplifies the challenge of dealing with job > restart (i.e. you don't have to) -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org