CODEWITHSUNDEEP
cassandra
Firdousi Farozan
Firdousi Farozan

Reputation: 882

What does ownership percentage in nodetool status refer to?

What does the percentage ownership refer to in the "nodetool status " output? Is it the disk space or token distribution or anything else?

Upvotes: 3

Views: 1315

Answers (2)

markc
markc

Reputation: 2158

The output of nodetool status ownership refers to the amount of token data ownership for the node multiplied by the replication factor. As per the documentation here

The percentage of the data owned by the node per datacenter times the replication factor. For example, a node can own 33% of the ring, but show 100% if the replication factor is 3.

Attention: If your cluster uses keyspaces having different replication strategies or replication factors, specify a keyspace when you run nodetool status to get meaningful ownership information.

Disk space is covered by the load which excludes data in the snapshot directories. Again the same doc link covers this.

Upvotes: 4

r005t3r
r005t3r

Reputation: 348

Ownership defines how much data is owned by the node.

If you add up the ownerships of each node in a single datacenter it would add up to

100*RF percent

where RF is Replication Factor, which mean data have RF number of replicas in the datacenter.

Upvotes: 1

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