Github user hequn8128 commented on the issue:
https://github.com/apache/flink/pull/6301
@jrthe42 Hi, thanks for your PR.
From my side, I think use a connection pool to solve the connection problem
is a better way. We don't need to keep the connections all the way. It wastes
the connection resources if most threads have been idle for a long time. Also,
the connection pool will not bring extra cost if threads are busy writing data
into database, since the connections in the pool will be reused.
I googled just now and find the `MiniConnectionPoolManager ` descriptions
[here](http://www.source-code.biz/miniconnectionpoolmanager/). Maybe we can
use it.
Best, Hequn
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