Hi, Cluster Spec: 30 nodes RF = 2 NetworkTopologyStrategy 
GossipingPropertyFileSnitch + rack aware Suddenly i lost all disks of 
cassandar-data on one of my racks, after replacing the disks, tried to replace 
the nodes with same ip using this: 
https://blog.alteroot.org/articles/2014-03-12/replace-a-dead-node-in-cassandra.html
 starting the to-be-replace-node fails with: java.lang.IllegalStateException: 
unable to find sufficient sources for streaming range in keyspace system_traces 
the problem is that i did not changed default replication config for System 
keyspaces, but Now when i altered the system_traces keyspace startegy to 
NetworkTopologyStrategy and RF=2 but then running nodetool repair failed: 
Endpoint not alive /IP of dead node that i'm trying to replace. What should i 
do now? Can i just remove previous nodes, change dead nodes IPs and re-join 
them to cluster? Sent using Zoho Mail

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