Sun Microsystems Sun GlassFish Enterprise Server 2.1, Руководство администратора

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Another example,
application
, is a valid monitorable object type and is not a singleton. To
address a non-singleton child node representing, for example, the application
PetStore
, the
dotted name is:
server.applications.petstore
The dotted names can also address specific attributes in monitorable objects. For example,
http-service
has a monitorable attribute called
bytesreceived-lastsampletime
. The
following name addresses the
bytesreceived
attribute:
server.http-service.server.http-listener-1.
bytesreceived-lastsampletime
The administrator is not expected to know the valid dotted names for
asadmin list
and
get
commands. The
list
command displays available monitorable objects, while the
get
command used with a wildcard parameter allows the inspection of all available attributes on
any monitorable object.
The underlying assumptions for using the
list
and
get
commands with dotted names are:
■
Any
list
command that has a dotted name that is not followed by a wildcard (
*
) gets as its
result the current node’s immediate children. For example,
list --user
adminuser
--monitor server
lists all immediate children belonging to the
server
node.
■
Any
list
command that has a dotted name followed by a wildcard of the form
.*
gets as its
result a hierarchical tree of children nodes from the current node. For example,
list
--user
adminuser
--monitor server.applications.*
lists all children of
applications
and their subsequent child nodes and so on.
■
Any
list
command that has a dotted name preceded or followed by a wildcard of the form
*dottedname or dotted * name or
dotted name *
gets as its result all nodes and their children
matching the regular expression created by the provided matching pattern.
■
A
get
command followed by a
.*
or a
*
gets as its result the set of attributes and their values
belonging to the current node to be matched.
For more information, read “Expected Output for list and get Commands at All Levels” on
page 202 .
Examples of the list and get Commands
This section contains the following topics:
■
“Examples for the list --user admin-user --monitor Command” on page 197
■
“Examples for the get --user admin-user --monitor Command” on page 197
Viewing Monitoring Data
Sun GlassFish Enterprise Server 2.1 Administration Guide • December 2008 196