Database Reference
In-Depth Information
node. And we can monitor the decommissioning process using the
nodetoolnetstats
command:
vivek@vivek-Vostro-3560:~/software/
local-cluster/node1$ bin/nodetool netstats
It would display the following output:
Mode: LEAVING
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 0
Mismatch (Background): 0
Pool Name Active
Pending Completed
Commands n/a
0 20048
Responses n/a
0 4806
The output means the node is still being processed and is in the
LEAVING
state. Here
Attempted
means the number of attempts
for the read repair.
Mismatch (Blocking)
and
Mismatch
(Background)
refer to the number of read repairs since the server
restart that blocked query and background server restart, respectively.
Here
Commands
holds information about the number of read/write
operations, and
Responses
holds information about the received
responses on client read/write requests.
During the
LEAVING
state, if we check cluster status, it will dis-
play output as shown after the command:
vivek@vivek-Vostro-3560:~/software/
local-cluster/node1$ bin/nodetool status
Datacenter: datacenter1
=======================
Status=Up(U)/Down(D)
