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From "Arina Ielchiieva (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-6076) Reduce the default memory from a total of 13GB to 5GB
Date Wed, 10 Jan 2018 12:23:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-6076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arina Ielchiieva updated DRILL-6076:
------------------------------------
    Issue Type: Task  (was: Bug)

> Reduce the default memory from a total of 13GB to 5GB
> -----------------------------------------------------
>
>                 Key: DRILL-6076
>                 URL: https://issues.apache.org/jira/browse/DRILL-6076
>             Project: Apache Drill
>          Issue Type: Task
>            Reporter: Kunal Khatua
>            Assignee: Kunal Khatua
>            Priority: Critical
>              Labels: ready-to-commit
>             Fix For: 1.13.0
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Currently, the default memory requirements for Drill are about 13GB, with the following
allocations:
> * 4GB Heap
> * 8GB Direct Memory
> * 1GB CodeCache
> * 512MB MaxPermSize
> Also, with Drill 1.12.0, the recommendation is to move to JDK8, which makes the MaxPermSize
as irrelevant.
> With that, the default requirements total to 13GB, which is rather high. This is especially
a problem for scenarios where people are trying out Drill and might be using this in a development
environment where 13GB is too high.
> When using the public [test framework|https://github.com/mapr/drill-test-framework/]
for Apache Drill, it was observed that the framework's functional and unit tests passed successfully
with memory as little as 5GB; based on the following allocation:
> * 1GB Heap
> * 3GB Direct Memory
> * 512MB CodeCache
> * 512MB MaxPermSize
> Based on this finding, the proposal is to reduce the defaults from the current settings
to the values just mentioned above. The drill-env.sh file already has details in the comments,
along with the recommended values that reflect the original 13GB defaults.



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