Re: Node is UNREACHABLE after decommission

2020-09-17 Thread Paulo Motta
Oh, if you're adding the same hosts to another cluster then the old cluster might try to communicate to the decommissioned nodes if you do that before the 3 day grace period. The cluster name not matching is a good protection, otherwise the two clusters will connect to each other and mayhem will en

Re: Node is UNREACHABLE after decommission

2020-09-17 Thread Krish Donald
Thanks Paulo, We have to decommission multiple nodes from the cluster and move those nodes to other clusters. So if we have to wait for 3 days for every node then it is going to take a lot of time. If i am trying to add the decommissioned node to the other cluster it is giving me an error that cl

Re: Node is UNREACHABLE after decommission

2020-09-17 Thread Paulo Motta
After decommissioning the node remains in gossip for a period of 3 days (if I recall correctly) and it will show up on describecluster during that period, so this is expected behavior. This allows other nodes that eventually were down when the node decommissioned to learn that this node left the cl

Re: Node is UNREACHABLE after decommission

2020-09-17 Thread Krish Donald
We are on 3.11.5 opensource cassandra On Thu, Sep 17, 2020 at 10:25 AM Krish Donald wrote: > Hi, > > We decommissioned a node from the cluster. > On decommissioned node it said in system.log that node has been > decommissioned . > But after couple of minutes only , on rest of the nodes the node

Node is UNREACHABLE after decommission

2020-09-17 Thread Krish Donald
Hi, We decommissioned a node from the cluster. On decommissioned node it said in system.log that node has been decommissioned . But after couple of minutes only , on rest of the nodes the node is showing UNREACHABLE when we issue nodetool describecluster . nodetool status is not showing the node