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Jonathan Ellis commented on CASSANDRA-6604: ------------------------------------------- The real problem is that your server is overloaded enough to drop writes on the floor. > AssertionError: Verb COUNTER_MUTATION should not legally be dropped > ------------------------------------------------------------------- > > Key: CASSANDRA-6604 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6604 > Project: Cassandra > Issue Type: Bug > Reporter: Bartłomiej Romański > Fix For: 1.2.14, 2.0.5 > > > We're seeing the following errors in our logs from time to time (about once > an hour): > {code} > ERROR [MutationStage:10] 2014-01-19 10:36:26,659 CassandraDaemon.java (line > 187) Exception in thread Thread[MutationStage:10,5,main] > java.lang.AssertionError: Verb COUNTER_MUTATION should not legally be dropped > at > org.apache.cassandra.net.MessagingService.incrementDroppedMessages(MessagingService.java:779) > at > org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1925) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:724) > {code} > They always appear in groups. About 50-100 errors in a row. > We've got a 12-nodes cluster recently upgraded from 1.2.10 to 2.0.4. It's > under pretty heavy load. -- This message was sent by Atlassian JIRA (v6.1.5#6160)