我有一个在MapReduce模式下运行的Pig脚本，它一直收到一个我无法修复的持久性错误。该脚本生成多个MapReduce应用程序;运行几个小时后，其中一个应用程序注册为SUCCEEDED但返回以下诊断消息：
成功提交后我们崩溃了。回收
导致失败的步骤是尝试在大约100GB的数据集上执行RANK，从前一个脚本中分割出大约1000个mapreduce输出文件。但是我也收到了试图进行大型HASH_JOIN操作的其他脚本的相同错误。
深入研究日志，我发现以下情况，这似乎表明工作成功但后来收到了错误：
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1523471594178_0475_m_001006_0 TaskAttempt Transitioned from COMMIT_PENDING to SUCCESS_CONTAINER_CLEANUP
INFO [ContainerLauncher #6] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: Processing the event EventType: CONTAINER_REMOTE_CLEANUP for container container_e15_1523471594178_0475_01_001013 taskAttempt attempt_1523471594178_0475_m_001006_0
INFO [ContainerLauncher #6] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: KILLING attempt_1523471594178_0475_m_001006_0
INFO [ContainerLauncher #6] org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy: Opening proxy : my.server.name:45454
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: attempt_1523471594178_0475_m_001006_0 TaskAttempt Transitioned from SUCCESS_CONTAINER_CLEANUP to SUCCEEDED
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: Task succeeded with attempt attempt_1523471594178_0475_m_001006_0
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskImpl: task_1523471594178_0475_m_001006 Task Transitioned from RUNNING to SUCCEEDED
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: Num completed Tasks: 1011
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl: job_1523471594178_0475Job Transitioned from RUNNING to COMMITTING
INFO [CommitterEvent Processor #1] org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler: Processing the event EventType: JOB_COMMIT
INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Before Scheduling: PendingReds:0 ScheduledMaps:0 ScheduledReds:0 AssignedMaps:2 AssignedReds:0 CompletedMaps:1011 CompletedReds:0 ContAlloc:1011 ContRel:0 HostLocal:1010 RackLocal:1
INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Received completed container container_e15_1523471594178_0475_01_001014
INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Received completed container container_e15_1523471594178_0475_01_001013
INFO [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: After Scheduling: PendingReds:0 ScheduledMaps:0 ScheduledReds:0 AssignedMaps:0 AssignedReds:0 CompletedMaps:1011 CompletedReds:0 ContAlloc:1011 ContRel:0 HostLocal:1010 RackLocal:1
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics report from attempt_1523471594178_0475_m_001007_0: Container killed by the ApplicationMaster.
Container killed on request. Exit code is 143
Container exited with a non-zero exit code 143.
INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics report from attempt_1523471594178_0475_m_001006_0: Container killed by the ApplicationMaster.
Container killed on request. Exit code is 143
Container exited with a non-zero exit code 143.
FATAL [AsyncDispatcher event handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
org.apache.hadoop.mapreduce.counters.LimitExceededException: Too many counters: 121 max=120
at org.apache.hadoop.mapreduce.counters.Limits.checkCounters(Limits.java:101)
at org.apache.hadoop.mapreduce.counters.Limits.incrCounters(Limits.java:108)
at org.apache.hadoop.mapreduce.counters.AbstractCounterGroup.addCounter(AbstractCounterGroup.java:78)
at org.apache.hadoop.mapreduce.counters.AbstractCounterGroup.addCounterImpl(AbstractCounterGroup.java:95)
at org.apache.hadoop.mapreduce.counters.AbstractCounterGroup.findCounter(AbstractCounterGroup.java:106)
at org.apache.hadoop.mapreduce.counters.AbstractCounterGroup.incrAllCounters(AbstractCounterGroup.java:203)
at org.apache.hadoop.mapreduce.counters.AbstractCounters.incrAllCounters(AbstractCounters.java:348)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.constructFinalFullcounters(JobImpl.java:1766)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.mayBeConstructFinalFullCounters(JobImpl.java:1752)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.createJobFinishedEvent(JobImpl.java:1733)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.logJobHistoryFinishedEvent(JobImpl.java:1092)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$CommitSucceededTransition.transition(JobImpl.java:2064)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$CommitSucceededTransition.transition(JobImpl.java:2060)
at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:999)
at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:139)
at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:1385)
at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:1381)
at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:184)
at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:110)
at java.lang.Thread.run(Thread.java:745)
INFO [AsyncDispatcher ShutDown handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye.
我已经尝试了几种解析mapreduce.counters.LimitExceededException的方法。我修改了Ambari中的MapReduce配置，将mapreduce.job.counters.max设置为20000（只是为了测试这个问题的解决方案，而不是为了让它留在那里）。我还尝试使用行set mapreduce.job.counters.max 10000;启动我的Pig脚本，以覆盖最大计数器。这两项变化似乎都没有任何影响;错误仍然显示120的限制。
我很困惑为什么更改最大计数器配置似乎没有产生影响。是否有一些相关配置我可能会丢失？或者此错误消息可能不准确，还是表示其他问题的症状？
更新：我发现了一些似乎与此问题相关的Apache MapReduce Jira票证;它似乎是一个现有的错误。我已经转而在Tez上运行我的工作，这消除了问题，但我在Tez上遇到了重大的性能问题，所以我仍然希望有人在MR引擎上有解决方法。
答案 0 :(得分：0)
我从未使用过Ambari，但您可以尝试手动编辑mapred-site.xml并在启动群集之前添加mapreduce.job.counters.max条目吗？
另一个选择就是你已经提到过的Tez 但我很想知道更多关于
的信息但我在Tez上遇到了重大的性能问题
因为在我的组织中，Tez在大多数用例中一直在击败地图。如果您可以分享您的问题（作为一个新问题），我会尝试跟进。
答案 1 :(得分：0)