Hi,

I am trying 'Analysing HTTPD Logs' sample [1] under BAM documentation.
After publishing the events to thrift port they were successfully stored in
Cassandra database which can be viewed using Cassandra Explorer. But I am
getting following error once I installed the 'HTTPD Logs Analysis Toolbox'
on BAM console.


Hive history
file=/Users/inshaf/Documents/Assignments/wso2bam-2.4.1/tmp/hive/wso2-querylogs/hive_job_log_root_201411281123_1016944917.txt
2014-11-28 11:23:01.995 java[6291:57e17] Unable to load realm info from
SCDynamicStore
OK
OK
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks not specified. Estimated from input data size: 1
In order to change the average load for a reducer (in bytes):
  set hive.exec.reducers.bytes.per.reducer=<number>
In order to limit the maximum number of reducers:
  set hive.exec.reducers.max=<number>
In order to set a constant number of reducers:
  set mapred.reduce.tasks=<number>
java.io.IOException: Cannot run program "null/bin/java" (in directory
"/Users/inshaf/server/wso2bam-2.4.1"): error=2, No such file or directory
    at java.lang.ProcessBuilder.processException(ProcessBuilder.java:478)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:457)
    at java.lang.Runtime.exec(Runtime.java:593)
    at java.lang.Runtime.exec(Runtime.java:431)
    at
org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:317)
    at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:129)
    at
org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:62)
    at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1351)
    at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1126)
    at org.apache.hadoop.hive.ql.Driver.run(Driver.java:934)
    at
org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.execute(HiveServer.java:201)
    at
org.apache.hadoop.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:187)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.executeHiveQuery(HiveExecutorServiceImpl.java:577)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.call(HiveExecutorServiceImpl.java:287)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.call(HiveExecutorServiceImpl.java:190)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:695)
Caused by: java.io.IOException: error=2, No such file or directory
    at java.lang.UNIXProcess.forkAndExec(Native Method)
    at java.lang.UNIXProcess.<init>(UNIXProcess.java:53)
    at java.lang.ProcessImpl.start(ProcessImpl.java:91)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
    ... 18 more
[2014-11-28 11:23:03,050] ERROR {org.apache.hadoop.hive.ql.exec.ExecDriver}
-  Exception: Cannot run program "null/bin/java" (in directory "
/Users/inshaf/server/wso2bam-2.4.1"): error=2, No such file or directory
FAILED: Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.MapRedTask
[2014-11-28 11:23:03,051] ERROR {org.apache.hadoop.hive.ql.Driver} -
FAILED: Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.MapRedTask
[2014-11-28 11:23:03,057] ERROR
{org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl} -  Error
while executing Hive script.
Query returned non-zero code: 9, cause: FAILED: Execution Error, return
code 1 from org.apache.hadoop.hive.ql.exec.MapRedTask
java.sql.SQLException: Query returned non-zero code: 9, cause: FAILED:
Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.MapRedTask
    at
org.apache.hadoop.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:189)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.executeHiveQuery(HiveExecutorServiceImpl.java:577)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.call(HiveExecutorServiceImpl.java:287)
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl$ScriptCallable.call(HiveExecutorServiceImpl.java:190)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:695)
[2014-11-28 11:23:03,058] ERROR
{org.wso2.carbon.analytics.hive.task.HiveScriptExecutorTask} -  Error while
executing script : phone_retail_store_script
org.wso2.carbon.analytics.hive.exception.HiveExecutionException: Error
while executing Hive script.Query returned non-zero code: 9, cause: FAILED:
Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.MapRedTask
    at
org.wso2.carbon.analytics.hive.impl.HiveExecutorServiceImpl.execute(HiveExecutorServiceImpl.java:116)
    at
org.wso2.carbon.analytics.hive.task.HiveScriptExecutorTask.execute(HiveScriptExecutorTask.java:70)
    at
org.wso2.carbon.ntask.core.impl.TaskQuartzJobAdapter.execute(TaskQuartzJobAdapter.java:67)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
    at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:695)

I tried executing httpd_logs_script manually from Management Console. Then
I had following error.

*ERROR: *Error while executing Hive script.Query returned non-zero code: 9,
cause: FAILED: Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.MapRedTask


Has anyone got any idea what would be the reason for this error. Any
solution would be appreciated.


[1] https://docs.wso2.com/display/BAM240/Analysing+HTTPD+Logs

Thanks and Best Regards,

-- 
Inshaf Mahath
Associate Software Engineer
Mobile: +94775907181
WSO2 Inc.
Lean . Enterprise . Middleware
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