GitHub user kumarvishal09 opened a pull request:
https://github.com/apache/incubator-carbondata/pull/280
[CARBONDATA-363]fixed block loading issue in case of blocklet distribution
**Problem**: In case of blocklet distribution same block is getting loaded
multiple times this is because when blocklet distribution is enabled same block
will divided inside a task so there is not synchronisation as block loading is
done in different thread because of this same block is getting read from carbon
data file footer multiple times and it is hitting the first time query
performance.
**Solution**: Need to add locking for above issue, if one thread is loading
particulate block other thread need and once block loaded other thread need to
use same reference of the block
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kumarvishal09/incubator-carbondata
blockloadingissue
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-carbondata/pull/280.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 #280
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commit a6d8a18a73e3ed8e39de444b2ddfded45813493f
Author: kumarvishal <kumarvishal.1...@gmail.com>
Date: 2016-11-02T17:02:42Z
fixed block loading issue in case of blocklet distribution
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