Maintenance - Practical Cassandra - page 93

Listing 7.2 nodetool version Output
$ nodetool version
ReleaseVersion: 1.2.5
Node Information
The first thing you'll want to do when looking into a Cassandra cluster is find out
about the individual nodes. To do that, you can run nodetool info (see List-
ing 7.3 ).
Note
The lack of a -h option here implies running it against localhost.
Listing 7.3 nodetool info Output
Click here to view code image
$ nodetool info
Token :
113427455640312821154458202477256070484
Gossip active : true
Thrift active : true
Load : 501.29 GB
Generation No : 1353710956
Uptime (seconds) : 944395
Heap Memory (MB) : 4362.68 / 7088.00
Data Center : Cassandra
Rack : rack1
Exceptions : 0
Key Cache : size 104857584 (bytes), capacity
104857584 (bytes), 4409164842
hits, 4634875698 requests, 0.951
recent hit rate, 14400 save
period in seconds
Row Cache : size 0 (bytes), capacity 0
(bytes), 0 hits, 0 requests, NaN