Hi ,
Below is the error,i found in the Job Tracker log file :
*Shuffle Error: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out*
Please help me in this ...
*Thanks in Advance*
*Shaik.*
On Fri, Jul 6, 2012 at 5:22 PM, Bejoy KS <bejoy...@yahoo.com> wrote:
> **
> Hi Shaik
>
> There is some error while MR jobs are running. To get the root cause
> please post in the error log from the failed task.
>
> You can browse the Job Tracker web UI and choose the right job Id and
> drill down to the failed tasks to get the error logs.
> Regards
> Bejoy KS
>
> Sent from handheld, please excuse typos.
> ------------------------------
> *From: *shaik ahamed <shaik5...@gmail.com>
> *Date: *Fri, 6 Jul 2012 17:09:26 +0530
> *To: *<user@hive.apache.org>
> *ReplyTo: *user@hive.apache.org
> *Subject: *hi all
>
> *Hi users,*
> **
> * As im selecting the distinct column from the vender Hive
> table *
> **
> *Im getting the below error plz help me in this*
> **
> *hive> select distinct supplier from vender_sample;*
>
> 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>
> Kill Command = /usr/local/hadoop/bin/../bin/hadoop job
> -Dmapred.job.tracker=md-trngpoc1:54311 -kill job_201207061535_0005
> Hadoop job information for Stage-1: number of mappers: 1; number of
> reducers: 1
> 2012-07-06 17:03:13,978 Stage-1 map = 0%, reduce = 0%
> 2012-07-06 17:03:20,001 Stage-1 map = 100%, reduce = 0%
> 2012-07-06 17:04:20,248 Stage-1 map = 100%, reduce = 0%
> 2012-07-06 17:04:23,262 Stage-1 map = 100%, reduce = 100%
> Ended Job = job_201207061535_0005 with errors
> Error during job, obtaining debugging information...
> Examining task ID: task_201207061535_0005_m_000002 (and more) from job
> job_201207061535_0005
>
> Task with the most failures(4):
> -----
> Task ID:
> task_201207061535_0005_r_000000
> FAILED: Execution Error, return code 2 from
> org.apache.hadoop.hive.ql.exec.MapRedTask
> MapReduce Jobs Launched:
> Job 0: Map: 1 Reduce: 1 HDFS Read: 99143041 HDFS Write: 0 FAIL
> Total MapReduce CPU Time Spent: 0 msec
>
> Regards
> shaik.
>
