[ec2] hadoop Could not create the Java virtual machine
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Key: HADOOP-7989
URL: https://issues.apache.org/jira/browse/HADOOP-7989
Project: Hadoop Common
Issue Type: Bug
Environment: Amazon EC2 m1.large instance (AMI-ID ami-fd589594)
Reporter: Jai Kumar Singh
On Amazon EC2, If I set mapred.child.java.opts to "-Xmx512m". Job execution
fails saying that "Could Not create the java virtual machine"
If unset mapred.child.java.opts everything runs fine. I've even tried the same
thing on c1.xlarge instances but with the same result.
I'll add full logs. I need to set mapred.child.java.opts becuase my reduce
program are memory hungry.
I've been trying to setup a map-reduce cluster on ec2 for last two days via
whirr, but this error was recurring. At first I thought It might be whirr
specific, so I manuualy setting up the cluster also resulted in same.
<snippet>
ubuntu@ip-10-84-237-173:~/workspace$ hadoop jar $HADOOP_HOME/*examples*.jar
wordcount in out
12/01/21 18:08:28 INFO input.FileInputFormat: Total input paths to process : 16
12/01/21 18:08:28 INFO mapred.JobClient: Running job: job_201201211751_0007
12/01/21 18:08:29 INFO mapred.JobClient: map 0% reduce 0%
12/01/21 18:08:35 INFO mapred.JobClient: Task Id :
attempt_201201211751_0007_m_000017_0, Status : FAILED
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
Caused by: java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
12/01/21 18:08:35 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-12-15-189.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_m_000017_0&filter=stdout
12/01/21 18:08:35 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-12-15-189.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_m_000017_0&filter=stderr
12/01/21 18:08:41 INFO mapred.JobClient: Task Id :
attempt_201201211751_0007_r_000002_0, Status : FAILED
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
Caused by: java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
12/01/21 18:08:41 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-12-15-189.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_r_000002_0&filter=stdout
12/01/21 18:08:41 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-12-15-189.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_r_000002_0&filter=stderr
12/01/21 18:08:47 INFO mapred.JobClient: Task Id :
attempt_201201211751_0007_m_000017_1, Status : FAILED
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
Caused by: java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
12/01/21 18:08:47 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-32-50-20.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_m_000017_1&filter=stdout
12/01/21 18:08:47 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-32-50-20.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_m_000017_1&filter=stderr
12/01/21 18:08:53 INFO mapred.JobClient: Task Id :
attempt_201201211751_0007_r_000002_1, Status : FAILED
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
Caused by: java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
12/01/21 18:08:53 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-32-50-20.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_r_000002_1&filter=stdout
12/01/21 18:08:53 WARN mapred.JobClient: Error reading task
outputhttp://ip-10-32-50-20.ec2.internal:50060/tasklog?plaintext=true&attemptid=attempt_201201211751_0007_r_000002_1&filter=stderr
12/01/21 18:09:01 INFO mapred.JobClient: Task Id :
attempt_201201211751_0007_m_000017_2, Status : FAILED
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
</snippet>
<snippet>
ubuntu@ip-10-12-15-189:~/workspace$ cat
~/hadoop/logs/userlogs/job_201201211751_0007/attempt_201201211751_0007_m_000016_1/std*
Could not create the Java virtual machine.
Error occurred during initialization of VM
Could not reserve enough space for object heap
ubuntu@ip-10-12-15-189:~/workspace$
</snippet>
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