Database Reference
In-Depth Information
As you can see from preceding status, the node
10.10.21.7
is down. The command to
remove a dead node from the cluster is as follows:
$ nodetool -h HOSTNAME removenode NODE_HOST_ID
$ bin/nodetool removenode
97c2f5f0-9d71-4d50-9100-74f2b3611359
$ bin/nodetool status
Datacenter: us-east
===================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host
ID Rack
UN 10.10.21.228 3.44 GB 256 50.9% d3de1... 1a
UN 10.10.21.169 1.95 GB 256 49.1% 6dc00... 1a
It has a similar effect on the ring as
nodetool decommission
. Alternatively,
de-
commission
or
disablegossip
cannot be used with a dead node. You might need to
move/rebalance the cluster tokens after this, if you are not using virtual node.
Note
It must be noted that decommissioning or removing a token does not remove the data
from the node that is being removed from the system. If you plan to reuse the node, you
must clean the data directories manually.
