GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/6859
[SPARK-8391][Core ]More efficient usage of memory when makeDotFile
JIRA: https://issues.apache.org/jira/browse/SPARK-8391
Currently `StringBuilder` is used to generate the dot file in `makeDotFile`
function. When there are too many DAG nodes and edges, `StringBuilder` will
frequently expand its capacity and the memory usage is not efficient. This PR
replaces `StringBuilder` with simply `String` to output the dot file. It should
solve part of the JIRA problem.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 dotfile_with_string
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/6859.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 #6859
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commit 586bdd08e98935ac4a0646a82f0fdd8ea58d2ae6
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-06-17T10:42:38Z
More efficient usage of memory when makeDotFile.
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