Github user ravipesala commented on the issue:
https://github.com/apache/incubator-carbondata/pull/656
@kunal642 It is not all about avoid multiple server instances, we always
shutdown after load completes so even if you avoid creating multiple instance
of server you cannot do second load as you already shutdown the server. So we
need to come with proper solution.
Solution 1 -> Start the dictionary server once per driver and avoid
shutting down after load completes. But make sure that dictionary data is
flushed to store after load completion of that table.
Solution 2 -> Always starts new dictionary server on new port (first check
the free port availability).
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