Details
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Improvement
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Status: Closed
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Minor
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Resolution: Fixed
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1.12.2
Description
org.apache.flink.streaming.experimental.CollectSink initialization need host and port. When Network is unavailable, i will get the error:
java.io.IOException: Cannot connect to the client to send back the stream at org.apache.flink.streaming.experimental.CollectSink.open(CollectSink.java:86) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:34) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102) at org.apache.flink.streaming.api.operators.StreamSink.open(StreamSink.java:46) at org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:426) at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$2(StreamTask.java:535) at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:93) at org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:525) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:565) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:755) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:570) at java.lang.Thread.run(Thread.java:748) Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394) at java.net.Socket.connect(Socket.java:606) at java.net.Socket.connect(Socket.java:555) at java.net.Socket.<init>(Socket.java:451) at java.net.Socket.<init>(Socket.java:261) at org.apache.flink.streaming.experimental.CollectSink.open(CollectSink.java:82) ... 11 more
However, i couldn't know the host and port.
Hope the error info could includ the host and port.
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