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https://issues.apache.org/jira/browse/DRILL-6076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317390#comment-16317390
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ASF GitHub Bot commented on DRILL-6076:
---------------------------------------
GitHub user kkhatua opened a pull request:
https://github.com/apache/drill/pull/1086
DRILL-6076: Reduce the default memory from a total of 13GB to 5GB
Reduce minimum memory requirements from 13GB to <= 5GB
For this, the default need to be changed as follows:
Allocation | Current | New
------------|--------|------
Heap | 4GB | 1GB
Direct | 8GB | 3GB
CodeCache | 1GB | 512MB
MaxPermSize | 512MB | 512MB (Ignored if JDK8+)
**Total** | 13.5GB | 5GB
**Total (JDK8+)** | 13GB | 4.5GB
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kkhatua/drill DRILL-6076
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/1086.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1086
----
commit e7d3cbf6abf904096efeea8391fc46a768e08bb8
Author: Kunal Khatua <kkhatua@...>
Date: 2018-01-05T01:49:50Z
DRILL-6076: Reduce the default memory from a total of 13GB to 5GB
Reduce minimum memory requirements from 13GB to <= 5GB
For this, the default need to be changed as follows:
Heap: 4GB -> 1GB
Direct: 8GB -> 3GB
CodeCache: 1GB -> 512MB
MaxPermSize: 512MB -> 512MB (Ignored if JDK8+)
----
> 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: Bug
> Reporter: Kunal Khatua
> Assignee: Kunal Khatua
> Priority: Critical
> 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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