的JobTracker不运行

Question

在运行MapReduce的罐子我得到以下异常：

Exception in thread "main" org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.mapred.JobTrackerNotYetInitializedException: JobTracker is not yet RUNNING 
    at org.apache.hadoop.mapred.JobTracker.checkJobTrackerState(JobTracker.java:5199) 
    at org.apache.hadoop.mapred.JobTracker.getNewJobId(JobTracker.java:3543) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:587) 
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1432) 
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1428) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at javax.security.auth.Subject.doAs(Subject.java:415) 
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) 
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1426) 

    at org.apache.hadoop.ipc.Client.call(Client.java:1113) 
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229) 
    at org.apache.hadoop.mapred.$Proxy2.getNewJobId(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:85) 
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62) 
    at org.apache.hadoop.mapred.$Proxy2.getNewJobId(Unknown Source) 
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:944) 
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at javax.security.auth.Subject.doAs(Subject.java:415) 
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) 
    at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936) 
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:550) 
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580) 
    at com.sreejithpillai.excel.mapreduce.ExcelDriver.main(ExcelDriver.java:49) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.apache.hadoop.util.RunJar.main(RunJar.java:160) 

但jps命令显示

15575 JobTracker 
15471 SecondaryNameNode 
15137 NameNode 
16123 Jps 
15733 TaskTracker 
3720 

我试图格式化NameNode和重新启动，但仍存在问题。

我可以在http://localhost:50030/jobtracker.jsp

有人看到工作请帮助。

Answer 1

从这个问题，不清楚你是否已经重新启动jobtracker或没有（格式化namenode后）。

当您重新启动namenode时，最好重新启动jobtracker。尽管jps显示进程已启动并正在运行，但它可能是不一致的状态。你需要去jobtracker日志，并检查是否有任何错误

Answer 2

你使用什么样的配置？独立模式，伪群集模式还是全分布模式？还运行hadoop fsck /检查HDFS是否处于健康状态或损坏状态（适用基本结束伪群集时由一个以上的商品机远程访问）

[edureka@localhost ~]$ hadoop fsck/
DEPRECATED: Use of this script to execute hdfs command is deprecated. 
Instead use the hdfs command for it. 

15/12/03 11:07:58 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 
Connecting to namenode via http://localhost:50070 
FSCK started by edureka (auth:SIMPLE) from /127.0.0.1 for path/at Thu Dec 03 11:07:58 IST 2015 
.................................................................................................... 
................................................ 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0184/job.jar: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073781438_40623. Target Replicas is 10 but found 1 replica(s). 
. 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0184/job.split: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073781439_40624. Target Replicas is 10 but found 1 replica(s). 
... 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0261/job.jar: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073782193_41378. Target Replicas is 10 but found 1 replica(s). 
. 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0261/job.split: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073782194_41379. Target Replicas is 10 but found 1 replica(s). 
... 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0282/job.jar: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073782396_41581. Target Replicas is 10 but found 1 replica(s). 
. 
/tmp/hadoop-yarn/staging/edureka/.staging/job_1448946364079_0282/job.split: Under replicated BP-1756909416-127.0.0.1-1411538715533:blk_1073782397_41582. Target Replicas is 10 but found 1 replica(s). 
........................................... 
.................................................................................................... 
.................................................................................................... 
.................................................................................................... 
.................................................................................................... 
.................................................................................................... 
.................................................................................................... 
.................................................................................................... 
..Status: HEALTHY 
Total size: 131322862 B 
Total dirs: 138 
Total files: 902 
Total symlinks:    0 
Total blocks (validated):  825 (avg. block size 159179 B) 
Minimally replicated blocks: 825 (100.0 %) 
Over-replicated blocks:  0 (0.0 %) 
Under-replicated blocks:  6 (0.72727275 %) 
Mis-replicated blocks:   0 (0.0 %) 
Default replication factor: 1 
Average block replication:  1.0 
Corrupt blocks:    0 
Missing replicas:    54 (6.143345 %) 
Number of data-nodes:   1 
Number of racks:    1 
FSCK ended at Thu Dec 03 11:07:59 IST 2015 in 130 milliseconds 


The filesystem under path '/' is HEALTHY 

我使用的伪集群模式，目前正在使用17台机器访问。不知何故，当安装VM的机器的4个核心无法提供足够的CPU来运行作业时。 hdfs被损坏。当VM上发生过载时会发生这种情况。
请指定您正在使用的配置。

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Thankyou :)