using flink 1.13.2. When i increase the parallelization of my application from 1 to 2, i see the following exceptions. what do they mean? how can i possibly fix this?
java.lang.IllegalArgumentException: key group from 128 to 256 does not contain 89 at org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:160) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue.globalKeyGroupToLocalIndex(KeyGroupPartitionedPriorityQueue.java:191) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue.computeKeyGroupIndex(KeyGroupPartitionedPriorityQueue.java:186) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue.getKeyGroupSubHeapForElement(KeyGroupPartitionedPriorityQueue.java:179) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue.add(KeyGroupPartitionedPriorityQueue.java:114) at org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.registerEventTimeTimer(InternalTimerServiceImpl.java:233) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.registerEventTimeTimer(WindowOperator.java:922) at org.apache.flink.streaming.api.windowing.triggers.EventTimeTrigger.onElement(EventTimeTrigger.java:44) at org.apache.flink.streaming.api.windowing.triggers.EventTimeTrigger.onElement(EventTimeTrigger.java:30) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.onElement(WindowOperator.java:936) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.processElement(WindowOperator.java:394) at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:205) at org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.processElement(AbstractStreamTaskNetworkInput.java:134) at org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:105) at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:66) at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:423) at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:204) at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:681) at org.apache.flink.streaming.runtime.tasks.StreamTask.executeInvoke(StreamTask.java:636) at org.apache.flink.streaming.runtime.tasks.StreamTask.runWithCleanUpOnFail(StreamTask.java:647) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:620) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:784) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:571) at java.base/java.lang.Thread.run(Thread.java:829)