GitHub user kumarvishal09 opened a pull request:
https://github.com/apache/incubator-carbondata/pull/619 [CARBONDATA-735]Dictionary performance issue with multiple task in same executor
**Problem:**
Currently when more than 1 task is getting launched in one node for a query both the task is trying to load the dictionary data and its impacting dictionary loading performance.
**Solution:**
Need to add monitor for dictionary loading one task will load the dictionary and other task will be waiting and share the same dictionary data
You can merge this pull request into a Git repository by running:
$ git pull
https://github.com/kumarvishal09/incubator-carbondata DictionaryLoadingissuewithmultipletaksinsameexecutor
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-carbondata/pull/619.patchTo close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #619
----
commit c79bd5255a3dac9ea7db698f23046d56e95d399f
Author: kumarvishal <
[hidden email]>
Date: 2017-02-28T10:28:02Z
Dictionary performance issue with multiple task in same executor
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at
[hidden email] or file a JIRA ticket
with INFRA.
---