GitHub user watermen opened a pull request:
https://github.com/apache/incubator-carbondata/pull/659
Reuse the same SegmentProperties objects to reduce the memory
When I load carbondata 1000+ times with 35 nodes, I found SegmentProperties
occupy 2.5+G(76K * 35 * 1000) memory in driver.
I don't have small files so I don't want to compact the segments. I
analyzed the dump file and found the values of SegmentProperties are the same,
so I think we can reuse the SegmentProperties object if possible.
cc @jackylk @QiangCai
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/watermen/incubator-carbondata CARBONDATA-781
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-carbondata/pull/659.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 #659
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commit b82e26907bd6882399cd4084e7584379b10c934c
Author: Yadong Qi <[email protected]>
Date: 2017-03-15T09:41:42Z
Reuse the same SegmentProperties to reduce the memory.
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