Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

Synopsis

Description

jconsole

is a
graphical interface to the memory,
thread, class loading, and other
monitoring
tools provided by the java.lang.management
package. It can monitor one or more local or remote Java processes.
Processes can be monitored only if started with special system
properties set. To allow a Java VM to be monitored locally, start it
with:

% jconsole -Dcom.sun.management.jmxremote=true

To allow a Java VM to be monitored remotely, start it with:

% jconsole -Dcom.sun.management.jmxremote.port= port

where port is the remote port to which

jconsole will connect.

You may start

jconsole with no local or remote
process specified and use its Connection menu to establish
connections. This is the only way to connect

jconsole to more than one Java process.

To connect

jconsole to a local process when it
starts up, simply list the process id on the command line. See

jps to determine process ids.

To connect

jconsole to a remote process when it
starts up, specify the hostname and port number on the command line.
The port should be the same as that specified by the
com.sun.management.jmxremote.port system property
of the target process.

Options

-help

Display a usage message.

-interval= n

Set the update interval to n seconds. The
default is 4.

-version

Display the

jconsole version and exit.

See also

jps ,

jstat