nodetool verify

Where is the cassandra-env.sh file?

The location of the cassandra-env.sh file depends on the type of installation:

Installation Type Location

Package installations + Installer-Services installations

/etc/dse/cassandra/cassandra-env.sh

Tarball installations + Installer-No Services installations

<installation_location>/resources/cassandra/conf/cassandra-env.sh

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

Synopsis

nodetool [options] verify [(-e | --extended-verify)] [--] [<keyspace> <tables>...]

Tarball and Installer No-Services path:

<installation_location>/resources/cassandra/bin
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 an option.

  • For tarball installations, execute the command from the <installation_location>/bin directory.

  • If a username and password for RMI authentication are set explicitly in the cassandra-env.sh 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.

Description

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

Examples

nodetool -u username -pw password verify cycling cyclist_name

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