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https://issues.apache.org/jira/browse/HADOOP-6958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206683#comment-13206683
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R Patrao commented on HADOOP-6958:
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I followed the steps on naming the hosts etc, unfortunately I have only two
servers. I named one as namenode and another as slave. but I have put all ip
entries (jobtracker, tasktracker etc) in /etc/hosts. It is not solving the
problem. Is there a patch or solution that we should wait for ? is it fixed in
1.0 beta ?
> org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find
> taskTracker/jobcache
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-6958
> URL: https://issues.apache.org/jira/browse/HADOOP-6958
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.20.2
> Environment: linux
> jdk1.6.0_20
> hadoop 0.20.2
> Reporter: mazhiyong
> Fix For: 0.20.2
>
>
> hello,
> I am using hadoop-0.20.2 and hadoop semi-cluster run in a server and the
> datas only 800M .
> The problem is when the hadoop running a period of time (more than 1
> hours),it not work. I am look up the log and find the exception: "INFO
> org.apache.hadoop.mapred.TaskTracker:
> org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find
> taskTracker/jobcache/job_201009161411_0368/attempt_201009161411_0368_m_000002_0/output/file.out
> in any of the configured local directories"
> I googled many blogs and web pages but I could neither understand why
> this happens nor found a solution to this. What does that error message mean
> and how can avoid it, any suggestions?
> I've confused the problem for a week already, Please sharing if you
> know what could be causing this, Thinks in advance!
> Configuration File:
> <!--hadoop-site.xml-->
> <configuration>
> <property>
> <name>mapred.child.tmp</name>
> <value>/data/hadoop-tmp</value>
> </property>
> <property>
> <name>hadoop.tmp.dir</name>
> <value>/data/hadoop-tmp</value>
> </property>
> <property>
> <name>mapred.local.dir</name>
> <value>/data/hadoop-tmp</value>
> </property>
> </configuration>
>
> <!--core-site.xml-->
> <configuration>
> <property>
> <name>fs.default.name</name>
> <value>hdfs://10.0.0.8:8020</value>
> </property>
> </configuration>
>
> <!--mapred-site.xml-->
> <configuration>
> <property>
> <name>mapred.job.tracker</name>
> <value>10.0.0.8:8021</value>
> </property>
> </configuration>
>
> <!--hdfs-site.xml-->
> <configuration>
> <property>
> <name>dfs.name.dir</name>
> <value>/data/name</value>
> </property>
> <property>
> <name>dfs.data.dir</name>
> <value>/data/data</value>
> </property>
> <property>
> <name>dfs.replication</name>
> <value>1</value>
> </property>
> </configuration>
> ERROR Logs:
> INFO org.apache.hadoop.mapred.TaskTracker: LaunchTaskAction (registerTask):
> attempt_201009161411_0368_r_000000_0 task's state:UNASSIGNED
> INFO org.apache.hadoop.mapred.TaskTracker: Trying to launch :
> attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.TaskTracker: In TaskLauncher, current free
> slots : 2 and trying to launch attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.JvmManager: In JvmRunner constructed JVM ID:
> jvm_201009161411_0368_r_1871094354
> INFO org.apache.hadoop.mapred.JvmManager: JVM Runner
> jvm_201009161411_0368_r_1871094354 spawned.
> INFO org.apache.hadoop.mapred.TaskTracker: JVM with ID:
> jvm_201009161411_0368_r_1871094354 given task:
> attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.TaskTracker: Sent out 381650 bytes for reduce:
> 0 from map: attempt_201009161411_0368_m_000000_0 given 381650/381646
> INFO org.apache.hadoop.mapred.TaskTracker.clienttrace: src: 10.0.0.8:50060,
> dest: 10.0.0.8:58884, bytes: 381650, op: MAPRED_SHUFFLE, cliID:
> attempt_201009161411_0368_m_000000_0
> INFO org.apache.hadoop.mapred.TaskTracker: Sent out 384812 bytes for reduce:
> 0 from map: attempt_201009161411_0368_m_000001_0 given 384812/384808
> INFO org.apache.hadoop.mapred.TaskTracker.clienttrace: src: 10.0.0.8:50060,
> dest: 10.0.0.8:58884, bytes: 384812, op: MAPRED_SHUFFLE, cliID:
> attempt_201009161411_0368_m_000001_0
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_r_000000_0 0.16666667% reduce > copy (1 of 2 at
> 0.06 MB/s) >
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_r_000000_0 0.16666667% reduce > copy (1 of 2 at
> 0.06 MB/s) >
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_r_000000_0 0.16666667% reduce > copy (1 of 2 at
> 0.06 MB/s) >
> INFO org.apache.hadoop.mapred.TaskTracker: Task
> attempt_201009161411_0368_r_000000_0 is in commit-pending, task
> state:COMMIT_PENDING
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_r_000000_0 0.16666667% reduce > copy (1 of 2 at
> 0.06 MB/s) >
> INFO org.apache.hadoop.mapred.TaskTracker: Received commit task action for
> attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_r_000000_0 1.0% reduce > reduce
> INFO org.apache.hadoop.mapred.TaskTracker: Task
> attempt_201009161411_0368_r_000000_0 is done.
> INFO org.apache.hadoop.mapred.TaskTracker: reported output size for
> attempt_201009161411_0368_r_000000_0 was 0
> INFO org.apache.hadoop.mapred.TaskTracker: addFreeSlot : current free slots :
> 2
> INFO org.apache.hadoop.mapred.JvmManager: JVM :
> jvm_201009161411_0368_r_1871094354 exited. Number of tasks it ran: 1
> INFO org.apache.hadoop.mapred.TaskTracker: LaunchTaskAction (registerTask):
> attempt_201009161411_0368_m_000002_0 task's state:UNASSIGNED
> INFO org.apache.hadoop.mapred.TaskTracker: Trying to launch :
> attempt_201009161411_0368_m_000002_0
> INFO org.apache.hadoop.mapred.TaskTracker: Received KillTaskAction for task:
> attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.TaskTracker: In TaskLauncher, current free
> slots : 2 and trying to launch attempt_201009161411_0368_m_000002_0
> INFO org.apache.hadoop.mapred.TaskTracker: About to purge task:
> attempt_201009161411_0368_r_000000_0
> INFO org.apache.hadoop.mapred.TaskRunner:
> attempt_201009161411_0368_r_000000_0 done; removing files.
> INFO org.apache.hadoop.mapred.JvmManager: In JvmRunner constructed JVM ID:
> jvm_201009161411_0368_m_2026394863
> INFO org.apache.hadoop.mapred.JvmManager: JVM Runner
> jvm_201009161411_0368_m_2026394863 spawned.
> INFO org.apache.hadoop.mapred.TaskTracker: JVM with ID:
> jvm_201009161411_0368_m_2026394863 given task:
> attempt_201009161411_0368_m_000002_0
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_m_000002_0 0.0%
> INFO org.apache.hadoop.mapred.TaskTracker:
> attempt_201009161411_0368_m_000002_0 0.0% cleanup
> INFO org.apache.hadoop.mapred.TaskTracker: Task
> attempt_201009161411_0368_m_000002_0 is done.
> INFO org.apache.hadoop.mapred.TaskTracker: reported output size for
> attempt_201009161411_0368_m_000002_0 was 0
> INFO org.apache.hadoop.mapred.TaskTracker: addFreeSlot : current free slots :
> 2
> INFO org.apache.hadoop.mapred.JvmManager: JVM :
> jvm_201009161411_0368_m_2026394863 exited. Number of tasks it ran: 1
> INFO org.apache.hadoop.mapred.TaskTracker:
> org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find
> taskTracker/jobcache/job_201009161411_0368/attempt_201009161411_0368_m_000002_0/output/file.out
> in any of the configured local directories
> INFO org.apache.hadoop.mapred.TaskTracker: Received 'KillJobAction' for job:
> job_201009161411_0368
> INFO org.apache.hadoop.mapred.TaskRunner:
> attempt_201009161411_0368_m_000000_0 done; removing files.
> INFO org.apache.hadoop.mapred.TaskRunner:
> attempt_201009161411_0368_m_000002_0 done; removing files.
> INFO org.apache.hadoop.mapred.IndexCache: Map ID
> attempt_201009161411_0368_m_000002_0 not found in cache
> INFO org.apache.hadoop.mapred.TaskRunner:
> attempt_201009161411_0368_m_000001_0 done; removing files.
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