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From "Karol Brejna (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GEARPUMP-147) java.lang.ClassNotFoundException when running on worker with worker.executor-share-same-jvm-as-worker = true
Date Thu, 19 May 2016 11:55:12 GMT

     [ https://issues.apache.org/jira/browse/GEARPUMP-147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karol Brejna updated GEARPUMP-147:
----------------------------------
    Attachment: logs.slimworker.zip

> java.lang.ClassNotFoundException when running on worker with worker.executor-share-same-jvm-as-worker
= true
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: GEARPUMP-147
>                 URL: https://issues.apache.org/jira/browse/GEARPUMP-147
>             Project: Apache Gearpump
>          Issue Type: Task
>            Reporter: Karol Brejna
>         Attachments: logs.slimworker.zip
>
>
> Doing GEARPUMP-146 I hit a problem: I was able to run a master on pc and a worker on
raspi. After deploying wordcountjava-2.11-0.8.0-assembly.jar the example didn't start.
> I reproduced this on "pure pc" cluster.
> I've prepared dedicated config files:
> * gear.pc.conf			   - normal (default) configuration for master and workers ran on a
PC
> * gear.pc.slimworker.conf  - intends to have lower requirements for memory, cpu - to
be used on a device (raspi, edison)
> *Obtaining binary and creating config files*
> {code}
> wget https://github.com/gearpump/gearpump/releases/download/0.8.0/gearpump-2.11-0.8.0.zip
> unzip gearpump-2.11-0.8.0.zip
> cd gearpump-2.11-0.8.0
> cp conf/gear.conf conf/gear.original.conf 
> cp conf/gear.conf conf/gear.pc.conf 
> cp conf/gear.conf conf/gear.pc.slimworker.conf 
> {code}
> *Preparing "PC" conf*
> The only real change here is putting the IP of the machine that will run the master:
> {code}
>   cluster {
>     masters = ["192.168.1.115:3000"]
>   }
>   
>   hostname = "192.168.1.115"
> {code}
>   
> *Preparing device conf*
> Compared to previous config, this config should set up less worker slots, smaller -Xmx
jvm switch for worker, and executor-share-same-jvm-as-worker set to true:  
> {code}
>   worker.slots = 100
>   worker.executor-share-same-jvm-as-worker = true
>   executor {
>     vmargs = "-server -Xms512M -Xmx512M -Xss1M -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=80 -XX:+UseParNewGC -XX:NewRatio=3  -Djava.rmi.server.hostname=localhost"
>     extraClasspath = ""
>   }
> {code}
> *Running the cluster:*
> {code}
> echo "Starting the master"
> cp conf/gear.pc.conf conf/gear.conf
> bin/master -ip 192.168.1.115 -port 3000 &
> echo "Starting services"
> bin/services &
> echo "Starting a worker (configured as on the device)"
> cp conf/gear.pc.slimworker.conf conf/gear.conf
> bin/worker &
> {code}
> *Deploing the DAG*
> I've deployed wordcountjava-2.11-0.8.0-assembly.jar.
> The app deploys, but doesn't run.
> After changing   worker.executor-share-same-jvm-as-worker  to false and restarting the
cluster, example dag works.
>   



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