[jira] [Comment Edited] (KYLIN-4070) No logs print in kylin.log file and met error "Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster"

["Xiaoxiang Yu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-4070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16880002#comment-16880002 ] 

Xiaoxiang Yu edited comment on KYLIN-4070 at 7/8/19 3:34 AM:
-------------------------------------------------------------

Sorry for late reply. [~xiangakun]

I think maybe your Hive is not configured correctly. After execute following in my env(CDH 5.7).
{quote}sh -x bin/find-hive-dependency.sh
{quote}
The output show that
 # "hive_home=/opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/bin/../lib/hive"
 # "hive_conf_path=/opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/bin/../lib/hive/conf"

 

I think your hive_home looks strange, full content of output is attached in [^apache-kylin-3.0.0-alpha-bin-cdh57.txt] . Maybe you should check it with yours.


was (Author: hit_lacus):
Sorry for late reply. [~xiangakun]

I think maybe your Hive is not configured correctly. After execute following in my env(CDH 5.7).
{quote}sh -x bin/find-hive-dependency.sh
{quote}
The output show that
 # "hive_home=/opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/bin/../lib/hive"
 # "hive_conf_path=/opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/bin/../lib/hive/conf"

apache-kylin-3.0.0-alpha-bin-cdh57.txt^!/jira/images/icons/link_attachment_7.gif|width=7,height=7!^

> No logs print in kylin.log file and met error "Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster"
> ---------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: KYLIN-4070
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4070
>             Project: Kylin
>          Issue Type: Bug
>         Environment: apache-kylin-2.6.2-bin-hbase1x  hadoop-2.7.7   hbase-1.2.11    hive-2.3.4
>            Reporter: xiangakun
>            Priority: Blocker
>         Attachments: apache-kylin-3.0.0-alpha-bin-cdh57.txt
>
>
> Hello friends,
>  
> I am using kylin with version 2.6.2, and the relied components are lists below, I start the kylin server successfully and met the error "org.apache.kylin.rest.exception.InternalErrorException: org/apache/hadoop/hive/conf/HiveConf" when loading hive meta data. I updated the configuration from "export HBASE_CLASSPATH_PREFIX=${KYLIN_HOME}/conf:${KYLIN_HOME}/lib/*:${KYLIN_HOME}/ext/*:${HBASE_CLASSPATH_PREFIX}"  to "export HBASE_CLASSPATH_PREFIX=${KYLIN_HOME}/conf:${KYLIN_HOME}/lib/*:${KYLIN_HOME}/ext/*:{color:#FF0000}${hive_dependency}{color}:${HBASE_CLASSPATH_PREFIX}" in kylin.sh file. it did work fine. However, after this action,  I found no more messages could be produced in logs/kylin.log file. I removed kylin.log file, and after restarted the kylin server, kylin.log file was not created any more. It's  seems too stange.
> What's more, when I create a cube and build it, the error happens in step 3, it shows "
> Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster". 
>  
> In fact, I used the same configuration in yarn-site.xml and mapred-site.xml files with kylin version 2.1.0 for a long time, it worked fine and never met such error.
>  
> Does anyone meet the same problem before? Hope receive your kindly help soon.
>  
> Thanks in advance.
>  
> Best Regards
> xiangakun
>  
>  



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