I just wanted to verify the procedures to add and remove nodes in my environment, please feel free to comments or advise.
I have 3 node cluster N1, N2, N3 with Vnode configured as (256) on each node. All are in one data center. 1. Procedure to Change node hardware or replace to new node machines (N1, N2 and N3) to (N11, N22 and N31) nodetool -h node2 decommission Bootstrap N21 nodetool repair nodetool -h node1 decommission Bootstrap N11 nodetool repair nodetool -h node3 decommission Bootstrap N31 nodetool repair --------------------------------------- 2. Procedure for changing 3 nodes cluster to 2 nodes cluster (N1, N2 and N3) to (N1, N3) nodetool -h node2 decommission Physically get rid of Node2 --------------------------------------- 3. Procedure for adding new node (N1, N2 and N3) to (N1, N2, N3, N4) Bootstrap N4 nodetool repair --------------------------------------- 4. Procedure to remove dead node/crashed node. (node n2 unable to start) (n1,n2, n3) to (n1,n3) Shutdown N2 if possible nodetool removenode xx_hostid_Of_N2_xx nodetool repair --------------------------------------- 5. Procedure to remove dead node/crashed node and replace with N21. (node n2 unable to start) (n1,n2, n3) to (n1,n3, n21) Shutdown N2 if possible nodetool removenode xx_hostid_Of_N2_xx Bootstrap N21 nodetool repair --------------------------------------- Thanks in advance for pointing any mistake or advise.
