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[Cloudera][ImpalaJDBCDriver](500593) Communication link failure. Failed to connect to server

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author-rank yagoaparecidoti
Expert Contributor

Created ‎11-23-2023 07:00 AM

hi community cloudera, 

we are verifying a strange behavior of an Impala connection controller on nifi, when the processor starts the connection, it displays the error below:

[Cloudera][ImpalaJDBCDriver](500593) Communication link failure. Failed to connect to server. Reason: java.net.SocketException: Connection or outbound has closed

communication between hosts is ok, ports communicating without problem.

when we start and stop the processor the connection occurs without problem, this shows that the error is intermittent.

has anyone experienced this type of problem?

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