nodetool compactionstats

Provide statistics about a compaction.

Provide statistics about a compaction.


nodetool <options> compactionstats -H
Table 1. Options
Short Long Description
-h --host Hostname or IP address
-p --port Port number
-pwf --password-file Password file path
-pw --password Password
-u --username User name
-- Separates an option from an argument that could be mistaken for a option.
Other options are:
  • datacenter is the name of an arbitrarily chosen datacenter from which to select sources for streaming.
  • H converts bytes to a human readable form: kilobytes (KB), megabytes (MB), gigabytes (GB), or terabytes (TB). (Cassandra 2.1.1)


The total column shows the total number of uncompressed bytes of SSTables being compacted. The system log lists the names of the SSTables compacted.


bin/nodetool compactionstats
pending tasks: 5
          compaction type        keyspace           table       completed           total      unit  progress
               Compaction       Keyspace1       Standard1       282310680       302170540     bytes    93.43%
               Compaction       Keyspace1       Standard1        58457931       307520780     bytes    19.01%
Active compaction remaining time :   0h00m16s