Hi, We have recently upgraded our cassandra production cluster(2 datacenters , each with 6 nodes, 3 groups) from c*-2.1.17 to c*-3.0.15.
After which we are getting too many exceptions as below. org.apache.cassandra.service.DigestMismatchException: Mismatch for key > DecoratedKey(-1032881015386111041, 03c099b9959871a9) > (a613f5fd9fc797b252e26fe9b9b1ed4e vs 15b7d82a9b454f5fd433317f68de435f) at > org.apache.cassandra.service.DigestResolver.compareResponses(DigestResolver.java:92) > at > org.apache.cassandra.service.ReadCallback$AsyncRepairRunner.run(ReadCallback.java:225) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at > org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79) > at java.lang.Thread.run(Thread.java:745) > No hints present /no mutation dropped, but still the above exception is thrown quite frequently. Could someone help us out in finding out the root cause. Thanks in advance TechPyaasa
