Hi to all, I have this strange exception in my program, do you know what could be the cause of it?
java.lang.RuntimeException: Hash join exceeded maximum number of recursions, without reducing partitions enough to be memory resident. Probably cause: Too many duplicate keys. at org.apache.flink.runtime.operators.hash.MutableHashTable.buildTableFromSpilledPartition(MutableHashTable.java:720) at org.apache.flink.runtime.operators.hash.MutableHashTable.prepareNextPartition(MutableHashTable.java:508) at org.apache.flink.runtime.operators.hash.MutableHashTable.nextRecord(MutableHashTable.java:541) at org.apache.flink.runtime.operators.hash.NonReusingBuildSecondHashMatchIterator.callWithNextKey(NonReusingBuildSecondHashMatchIterator.java:102) at org.apache.flink.runtime.operators.MatchDriver.run(MatchDriver.java:173) at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:494) at org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:360) at org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:221) at java.lang.Thread.run(Thread.java:745) Best, Flavio