I have a six node cluster in AWS (repl:3) and recently noticed that repair was hanging. I've run with the "-pr" switch.
I see this output in the nodetool command line (and also in that node's system.log): Starting repair command #9, repairing 256 ranges for keyspace dev_a but then no other output. And I see nothing in any of the other node's log files. Right now the application using C* is turned off so there is zero activity. I've let it be in this state for up to 24 hours with nothing more logged. Any suggestions?