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Ran 18 May 2018 09:53AM UTC

Files 1020

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Committed 18 May 2018 09:53AM UTC coverage: 74.885% (+0.02%) from 74.861%

Job # 451.1

Build Type

push

jenkins

Committed by ravipesala

Commit Message

[CARBONDATA-2484][LUCENE]Refactor distributable code and lauch job to clear the datamap from executor(clears segmentMap and remove datamap from cache)

Problem:
During query, blockletDataMapFactory maintains a segmentMap which has mapping of
segmentId -> list of index file, and this will be used while getting the extended blocklet
by checking whether the blocklet present in the index or not.
In case of Lucene, the datamap job will be launched and during pruning the segmentMap will be added
in executor and this map will be cleared in driver when drop table is called, but it will not be cleared in executor.
so when the query is fired after table or datamap is dropped, the lucene query fails.

Solution:
So when drop table or drop datamap is called a job is launched which clears the datamaps from segmentMap and cache and
then clears in driver.

This PR also refactors the datamap job classes and other common classes

This closes #2310

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