nodetool gcstats
Returns garbage collection statistics about all the garbage collection that has run since the last time nodetool gcstats was run.
Statistics include the following information:
-
interval
-
GC elapsed time (total and standard deviation)
-
disk space reclaimed in megabytes (MB)
-
number of garbage collections
-
direct memory bytes
Synopsis
nodetool [<connection_options>] gcstatsDefinition
The short- and long-form options are comma-separated.
Connection options
- -h, --host hostname
-
The hostname or IP address of a remote node or nodes. When omitted, the default is the local machine.
- -p, --port jmx_port
-
The JMX port number.
- -pw, --password jmxpassword
-
The JMX password for authenticating with secure JMX. If a password is not provided, you are prompted to enter one.
- -pwf, --password-file jmx_password_filepath
-
The file path to the file that stores JMX authentication credentials.
- -u, --username jmx_username
-
The username for authenticating with secure JMX.
Command arguments
This command takes no arguments.
Example
nodetool gcstatsInterval (ms) Max GC Elapsed (ms)Total GC Elapsed (ms)Stdev GC Elapsed (ms) GC Reclaimed (MB) Collections Direct Memory Bytes
520255260 350 43299 24 1231539 1108 220182597</codeblock></section>