Setup Specifics: Version: 1.6.2 RocksDB Map State Timers stored in rocksdb When we have this job running for long periods of time like > 30 days, if for some reason the job restarts, we encounter "Error while deserializing the element". Is this a known issue fixed in later versions? I see some changes to code for FLINK-10175, but we don't use any queryable state
Below is the stack trace org.apache.flink.util.FlinkRuntimeException: Error while deserializing the element. at org.apache.flink.contrib.streaming.state.RocksDBCachingPriorityQueueSet.deserializeElement(RocksDBCachingPriorityQueueSet.java:389) at org.apache.flink.contrib.streaming.state.RocksDBCachingPriorityQueueSet.peek(RocksDBCachingPriorityQueueSet.java:146) at org.apache.flink.contrib.streaming.state.RocksDBCachingPriorityQueueSet.peek(RocksDBCachingPriorityQueueSet.java:56) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue$InternalPriorityQueueComparator.comparePriority(KeyGroupPartitionedPriorityQueue.java:274) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue$InternalPriorityQueueComparator.comparePriority(KeyGroupPartitionedPriorityQueue.java:261) at org.apache.flink.runtime.state.heap.HeapPriorityQueue.isElementPriorityLessThen(HeapPriorityQueue.java:164) at org.apache.flink.runtime.state.heap.HeapPriorityQueue.siftUp(HeapPriorityQueue.java:121) at org.apache.flink.runtime.state.heap.HeapPriorityQueue.addInternal(HeapPriorityQueue.java:85) at org.apache.flink.runtime.state.heap.AbstractHeapPriorityQueue.add(AbstractHeapPriorityQueue.java:73) at org.apache.flink.runtime.state.heap.KeyGroupPartitionedPriorityQueue.<init>(KeyGroupPartitionedPriorityQueue.java:89) at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBPriorityQueueSetFactory.create(RocksDBKeyedStateBackend.java:2792) at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend.create(RocksDBKeyedStateBackend.java:450) at org.apache.flink.streaming.api.operators.InternalTimeServiceManager.createTimerPriorityQueue(InternalTimeServiceManager.java:121) at org.apache.flink.streaming.api.operators.InternalTimeServiceManager.registerOrGetTimerService(InternalTimeServiceManager.java:106) at org.apache.flink.streaming.api.operators.InternalTimeServiceManager.getInternalTimerService(InternalTimeServiceManager.java:87) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.getInternalTimerService(AbstractStreamOperator.java:764) at org.apache.flink.streaming.api.operators.KeyedProcessOperator.open(KeyedProcessOperator.java:61) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:424) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:290) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.EOFException at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290) at org.apache.flink.types.StringValue.readString(StringValue.java:769) at org.apache.flink.api.common.typeutils.base.StringSerializer.deserialize(StringSerializer.java:69) at org.apache.flink.api.common.typeutils.base.StringSerializer.deserialize(StringSerializer.java:28) at org.apache.flink.api.java.typeutils.runtime.RowSerializer.deserialize(RowSerializer.java:179) at org.apache.flink.api.java.typeutils.runtime.RowSerializer.deserialize(RowSerializer.java:46) at org.apache.flink.streaming.api.operators.TimerSerializer.deserialize(TimerSerializer.java:168) at org.apache.flink.streaming.api.operators.TimerSerializer.deserialize(TimerSerializer.java:45) at org.apache.flink.contrib.streaming.state.RocksDBCachingPriorityQueueSet.deserializeElement(RocksDBCachingPriorityQueueSet.java:387) ... 20 more -- Thanks, -Vijay
