nodetool verify

Verify (check data checksum for) one or more tables.

Verify (check data checksum for) one or more tables.


nodetool [options] verify [(-e | --extended-verify)] [--] [<keyspace> <tables>...]
Cassandra tarball installations:
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 Remote JMX agent username.
-e --extended-verify Verify each cell data, beyond simply checking SSTable checksums.
keyspace Name of keyspace.
table One or more table names, separated by a space.
-- Separates an option from an argument that could be mistaken for a option.
  • For tarball installations, execute the command from the install_location/bin directory.
  • If a username and password for RMI authentication are set explicitly in the file for the host, then you must specify credentials.
  • nodetool verify operates on a single node in the cluster if -h is not used to identify one or more other nodes. If the node from which you issue the command is the intended target, you do not need the -h option to identify the target; otherwise, for remote invocation, identify the target node, or nodes, using -h.


The nodetool verify command checks the data checksum for one or more specified tables. An optional argument, -e or --extended-verify, will verify each cell data, whereas without the option, only the SSTable checksums are verified.


nodetool -u cassandra -pw cassandra verify cycling cyclist_name 
The location of the file depends on the type of installation:
Cassandra package installations /etc/cassandra/
Cassandra tarball installations install_location/conf/