I have a 4 node Cassandra cluster that didn't see a repair() for about 8 months, in between administrators. It doesn't see much in the way of deletes. I've noticed that when I run nodetool repair, the system will not accept new data, and nobody can connect with cqlsh until the repair is completed. Is it normal for repair to cause downtime?
Cassandra's nodetool repair appears to cause outages
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