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https://issues.apache.org/jira/browse/MAPREDUCE-6704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15664512#comment-15664512
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Allen Wittenauer commented on MAPREDUCE-6704:
---------------------------------------------
bq. But shouldn't the credential file format be backward-compatible?
There is no guarantee that running hadoop 2.x jars will work carte blanche on a
hadoop 3.x system. This is covered in lots of spots by the Apache Hadoop
Compatibility guidelines. More to the point, the token file format is
technically Private while the APIs are Public/Evolving. It's wide open to get
changed incompatibility.
Slightly off-topic: The token file format in pre-3.x is raw Java objects
written to disk. This causes lots of issues, some obvious and some not-obvious.
It is now protobuf which fixes a good chunk/all? of the issues. [I'll omit the
list of problems that I'm aware of--which would be incomplete at best--due to
length. It really is that broken. haha.]
> Container fail to launch for mapred application
> -----------------------------------------------
>
> Key: MAPREDUCE-6704
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6704
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Blocker
> Attachments: 0001-MAPREDUCE-6704.patch, 0001-YARN-5026.patch,
> ClusterSetup.html, MAPREDUCE-6704.0002.patch, MR-6704-branch2.8.tar.gz,
> MR-6704-trunk-tempPatch.tar.gz, MR-6704-trunk.tar.gz, SingleCluster.html,
> container-whitelist-env-wip.patch, temp.patch
>
>
> Container fail to launch for mapred application.
> As part for launch script {{HADOOP_MAPRED_HOME}} default value is not set
> .After
> https://github.com/apache/hadoop/commit/9d4d30243b0fc9630da51a2c17b543ef671d035c
> {{HADOOP_MAPRED_HOME}} is not able to get from {{builder.environment()}}
> since {{DefaultContainerExecutor#buildCommandExecutor}} sets inherit to false.
> {noformat}
> 16/05/02 09:16:05 INFO mapreduce.Job: Job job_1462155939310_0004 failed with
> state FAILED due to: Application application_1462155939310_0004 failed 2
> times due to AM Container for appattempt_1462155939310_0004_000002 exited
> with exitCode: 1
> Failing this attempt.Diagnostics: Exception from container-launch.
> Container id: container_1462155939310_0004_02_000001
> Exit code: 1
> Stack trace: ExitCodeException exitCode=1:
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:946)
> at org.apache.hadoop.util.Shell.run(Shell.java:850)
> at
> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:1144)
> at
> org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:227)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.launchContainer(ContainerLaunch.java:385)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:281)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:89)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Container exited with a non-zero exit code 1. Last 4096 bytes of stderr :
> Java HotSpot(TM) 64-Bit Server VM warning: ignoring option UseSplitVerifier;
> support was removed in 8.0
> Error: Could not find or load main class
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster
> Container exited with a non-zero exit code 1. Last 4096 bytes of stderr :
> Java HotSpot(TM) 64-Bit Server VM warning: ignoring option UseSplitVerifier;
> support was removed in 8.0
> {noformat}
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