Hi guys,
trying to run this example:
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
DataStreamSource<Tuple2<Long, String>> source = env.addSource(new SourceFunction<Tuple2<Long, String>>() {
@Override
public void run(SourceContext<Tuple2<Long, String>> ctx) throws Exception {
LongStream.range(0, 33).forEach(l -> {
ctx.collect(Tuple2.of(0L, "This is " + l));
});
}
@Override
public void cancel() {
}
});
source.assignTimestampsAndWatermarks(new IngestionTimeExtractor<>()).
// source.
keyBy(0).window(GlobalWindows.create()).trigger(PurgingTrigger.of(CountTrigger.of(5))).
apply(new WindowFunction<Tuple2<Long, String>, Void, Tuple, GlobalWindow>() {
@Override
public void apply(Tuple tuple, GlobalWindow window, Iterable<Tuple2<Long, String>> input, Collector<Void> out) throws Exception {
System.out.println("!!!!!!!!! " + Joiner.on(",").join(input));
}
});
env.execute("yoyoyo");
Getting Caused by: java.lang.ClassCastException: org.apache.flink.streaming.api.watermark.Watermark cannot be cast to org.apache.flink.streaming.runtime.streamrecord.StreamRecord
at org.apache.flink.streaming.runtime.streamrecord.StreamRecordSerializer.serialize(StreamRecordSerializer.java:42)
at org.apache.flink.runtime.plugable.SerializationDelegate.write(SerializationDelegate.java:56)
at org.apache.flink.runtime.io.network.api.serialization.SpanningRecordSerializer.addRecord(SpanningRecordSerializer.java:79)
at org.apache.flink.runtime.io.network.api.writer.RecordWriter.broadcastEmit(RecordWriter.java:109)
at org.apache.flink.streaming.runtime.io.StreamRecordWriter.broadcastEmit(StreamRecordWriter.java:95)
at org.apache.flink.streaming.runtime.io.RecordWriterOutput.emitWatermark(RecordWriterOutput.java:90)
- After googling I've found this: https://issues.apache.org/jira/browse/FLINK-3688
- went to github, downloaded branch 1.0.2 which contains specified change but having the same results.
What am I missing here?
Thanks!
Konstantin
Locked
