[LIVY-1000][RSC] Supports reconnection after the RPC link between RSC… #448
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…Client and RSCDriver is disconnected
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…Client and RSCDriver is disconnected
What changes were proposed in this pull request?
When RSCClient and RSCDriver are disconnected due to some accident, try to re-establish the connection.
https://issues.apache.org/jira/browse/LIVY-1000
How was this patch tested?
I tried to use the tcpkill to manually kill the link between RSCClient and RSCDriver to verify whether it completed re-establishing the connection.