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https://issues.apache.org/jira/browse/HIVE-14887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15613093#comment-15613093
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Siddharth Seth edited comment on HIVE-14887 at 10/27/16 8:27 PM:
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Thanks for the review. Committing.
Failing tests fixed by HIVE-14964.

In terms of #of HDFS nodes. Each node is launched as a thread within the same 
process (the process launched by maven to execute tests). That's currently 2GB, 
and I'll file a separate jira to reduce this after this one is committed. When 
moving this to 1GB - I didn't really see any failures related to HDFS itself.

A 4 node MiniYARNCluster runs all 4 nodes as threads as well. However, the 
difference is that the containers that run on the NodeManagers launch as 
separate processes. Without this patch - we would run 4 NMs, with 4 1GB 
containers each - so each test could end up running with 16GB. Post the changes 
there's 2 NMs, with 4x128MB. So this gets way lower. 


was (Author: sseth):
Thanks for the review. Committing.

In terms of #of HDFS nodes. Each node is launched as a thread within the same 
process (the process launched by maven to execute tests). That's currently 2GB, 
and I'll file a separate jira to reduce this after this one is committed. When 
moving this to 1GB - I didn't really see any failures related to HDFS itself.

A 4 node MiniYARNCluster runs all 4 nodes as threads as well. However, the 
difference is that the containers that run on the NodeManagers launch as 
separate processes. Without this patch - we would run 4 NMs, with 4 1GB 
containers each - so each test could end up running with 16GB. Post the changes 
there's 2 NMs, with 4x128MB. So this gets way lower. 

> Reduce the memory used by MiniMr, MiniTez, MiniLlap tests
> ---------------------------------------------------------
>
>                 Key: HIVE-14887
>                 URL: https://issues.apache.org/jira/browse/HIVE-14887
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>             Fix For: 2.2.0
>
>         Attachments: HIVE-14887.01.patch, HIVE-14887.02.patch, 
> HIVE-14887.03.patch, HIVE-14887.04.patch, HIVE-14887.05.patch, 
> HIVE-14887.06.patch
>
>
> The clusters that we spin up end up requiring 16GB at times. Also the maven 
> arguments seem a little heavy weight.
> Reducing this will allow for additional ptest drones per box, which should 
> bring down the runtime.



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