2.3 KiB
show Mbean information
mbean command can show or monitor Mbean attribute information.
Parameters
| Name | Specification |
|---|---|
| name-pattern | pattern for the Mbean name |
| attribute-pattern | pattern for the attribute name |
| [m] | show meta information |
| [i:] | specify the interval to refresh attribute value (ms) |
| [n:] | execution times |
| [E] | turn on regex matching while the default mode is wildcard matching. Only effect on the attribute name |
Usage
Show all Mbean names
mbean{{execute T2}}
Show meta data of Mbean
mbean -m java.lang:type=Threading{{execute T2}}
Show attributes of Mbean
mbean java.lang:type=Threading {{execute T2}}
Mbean name support wildcard matcher
mbean java.lang:type=Th*{{execute T2}}
Notes：ObjectName matching rules differ from normal wildcards, Reference resources：javax.management.ObjectName
Multiple properties name matcher
Check memory pool:
mbean java.lang:name=*,type=MemoryPool{{execute T2}}
Wildcards match specific attributes
mbean java.lang:type=Threading *Count{{execute T2}}
Switch to regular matching using the -E{{}} command
mbean -E java.lang:type=Threading PeakThreadCount|ThreadCount|DaemonThreadCount{{execute T2}}
Check memory pool:
mbean -E java.lang:name=*,type=MemoryPool Name|Usage|Type | grep " HEAP" -A3 -B1{{execute T2}}
Real-time monitoring using -i{{}} command
mbean -i 1000 java.lang:type=Threading *Count{{execute T2}}
Press Q{{execute T2}} or Ctrl+C{{}} to abort