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From "Poojan Khanpara (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11368) Hive Metastore process always shows alert in Ambari UI on machines with 64 CPU cores
Date Tue, 12 Apr 2016 19:43:25 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15237833#comment-15237833
] 

Poojan Khanpara commented on HIVE-11368:
----------------------------------------

I am getting the same alerts, especially when I try to drop a big schema with cascade. I have
a six node cluster and it was working perfectly before I upgraded latest version.

> Hive Metastore process always shows alert in Ambari UI on machines with 64 CPU cores
> ------------------------------------------------------------------------------------
>
>                 Key: HIVE-11368
>                 URL: https://issues.apache.org/jira/browse/HIVE-11368
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>    Affects Versions: 1.2.0
>         Environment: 64 CPU Core.
>            Reporter: Ayappan
>
> I am running Ambari with hadoop full stack installed on a cluster setup with machines
having 64 CPU cores. All the services are up and running. But the Hive Metastore process always
shows alert.Checking into the alert definition , it says Hive command was killed due timeout
after 30 seconds.
> This is below command.
> /var/lib/ambari-agent/ambari-sudo.sh su ambari-qa -l -s /bin/bash -c export  PATH='/usr/sbin:/sbin:/usr/lib/ambari-server/*:/usr/sbin:/sbin:/usr/lib/ambari-server/*:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/var/lib/ambari-agent:/var/lib/ambari-agent:/bin/:/usr/bin/:/usr/sbin/:/usr/iop/current/hive-metastore/bin'
; ulimit -s 10240 ; export HIVE_CONF_DIR='/usr/iop/current/hive-metastore/conf/conf.server'
; hive --hiveconf hive.metastore.uris=thrift://birhel17.rtp.raleigh.ibm.com:9083         
       --hiveconf hive.metastore.client.connect.retry.delay=1s                 --hiveconf
hive.metastore.failure.retries=1                 --hiveconf hive.metastore.connect.retries=1
                --hiveconf hive.metastore.client.socket.timeout=14s                 --hiveconf
hive.execution.engine=mr -e 'show databases;'
> And the alert-metastore python script has a timeout of 30 seconds but the above Hive
command takes more than 30 seconds on a 64 core machine. So it always shows the alert.
> Even manually running the command from command line takes lot of time (around 27 secs)
in 64 core compared to 8 core machine (takes only 3 secs)
> Do we need to change some hive parameters ( like worker.threads ) for 64 core machines
?



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