Apache Beam pipeline hangs when using GroupByKey.create() in Java
I am trying to write a data pipeline in Java using Apache Beam version 2.56.0.
Apache Beam: Problems which can occur when Modifying the Original Input
We received following error in Creating Tests for Apache Beam Pipeline with DirectTestRunner.
Cloning and editing the original object will be required to fix the issue. IllegalMutationException from Beam PTransform
Apache Beam: Problems which can occur when Modifying the Original Input
We received following error in Creating Tests for Apache Beam Pipeline with DirectTestRunner.
Cloning and editing the original object will be required to fix the issue. IllegalMutationException from Beam PTransform
apache beam is throwing error “java.lang.IllegalArgumentException: formatFunction may not return null”
I have an apache beam dataflow in java which is running fine. but observed below error in error log for a particular day and time like on 2024-05-20 09:55:40.231000 UTC to 09:56:31.206000 UTC. all the message that it processed during the mentioned time were not processed and below error came.
How to create an empty PCollection<KV>
Im trying to create an empty PCollection of a custom Object called Incident
How to get the global Sum of some fields of your PCollection
After doing some transformations I get a PCollection<FinalResult> that looks like this:
How to combine the counts from two PCollection into one Object
I have an apache beam pipeline that reads a CSV file and also makes a query to a bigquery table, I need to count how many registers are in each PCollection and based on that create a FinalResult object that has both counts, have not been able to figure out how to combine both result into one object.
Java Apache Beam ProcessElement Method have to be void?
In Java Apache Beam , does the @ProcessElement method required to be void? Or can it return an int, string or class?