JVM监控：python脚本JMX获取JVM状态

蔚落 2024-04-18 22:23 77阅读 0赞

# python脚本JMX获取JVM状态 #

**主要原理：**

主要通过python库jmxquery，jmxquery是通过python脚本调用它里面的JAR包的JAVA方法连接JMX端口，以获取JVM的状态。

jmxquery github：

[             https://github.com/dgildeh/JMXQuery/tree/master/python][https_github.com_dgildeh_JMXQuery_tree_master_python]

**安装jmxquery：**

$ pip install jmxquery
    Collecting jmxquery
      Downloading https://files.pythonhosted.org/packages/93/02/b079e4df07f4c23bc5759742c488673008327dcd14713b519a96c7cc3e94/jmxquery-0.5.0.tar.gz
    Installing collected packages: jmxquery
      Running setup.py install for jmxquery: started
        Running setup.py install for jmxquery: finished with status 'done'
    Successfully installed jmxquery-0.5.0
    You are using pip version 19.0.3, however version 19.2.3 is available.
    You should consider upgrading via the 'python -m pip install --upgrade pip' command.

** PYTHON脚本：**

只要指定JMX地址即可。

from jmxquery import JMXConnection, JMXQuery
    
    jmxConnection = JMXConnection("service:jmx:rmi:///jndi/rmi://127.0.0.1:8889/jmxrmi")
    
    ## memory
    type_str = "Memory"
    beanName_str = "java.lang:type={0}".format(type_str)
    for atrributeName in ["HeapMemoryUsage","NonHeapMemoryUsage"]:
    		jmxQuery = [
    		    JMXQuery(mBeanName=beanName_str,
    		            attribute=atrributeName,     
    		            metric_name="Type:{type}_{attribute}_{attributeKey}")]
    		metrics = jmxConnection.query(jmxQuery)
    		for metric in metrics:
    		    print(f"{metric.to_query_string()} ({metric.value_type}) = {metric.value}") 
        
    
    ## memoryPool  
    type_str = "MemoryPool"
    for name in ["Code Cache","Metaspace","Compressed Class Space","Par Eden Space","Par Survivor Space","PS Eden Space","PS Old Gen","PS Perm Gen","PS Survivor Space","CMS Old Gen","CMS Perm Gen","Perm Gen"]: 
    		beanName_str = "java.lang:type={0},name={1}".format(type_str, name)
    		jmxQuery = [
    		    JMXQuery(mBeanName=beanName_str,
    		            attribute="Usage",  
    		            metric_name="Type:{type}_{attribute}_{attributeKey}")]
    		metrics = jmxConnection.query(jmxQuery)
    		for metric in metrics:
    		    print(f"{metric.to_query_string()} ({metric.value_type}) = {metric.value}")
    
    
    ## GarbageCollector 其中时间单位是s
    type_str = "GarbageCollector"
    for name in ["Copy","MarkSweepCompact","PS Scavenge","ConcurrentMarkSweep","ParNew","PS MarkSweep"]:
    		beanName_str = "java.lang:type={0},name={1}".format(type_str, name)
    		for atrributeName in ["CollectionTime","CollectionCount"]:
    				jmxQuery = [
    				    JMXQuery(mBeanName=beanName_str,
    				            attribute=atrributeName,  
    				            metric_name="Type:{type}_{attribute}")]
    				metrics = jmxConnection.query(jmxQuery)
    				for metric in metrics:
    				    print(f"{metric.to_query_string()} ({metric.value_type}) = {metric.value}")
    
          
    ## Threading
    jmxQuery = [
        JMXQuery(mBeanName="java.lang:type=Threading",
                attribute="ThreadCount",  
                metric_name="Type:{type}_{attribute}")]
    metrics = jmxConnection.query(jmxQuery)
    for metric in metrics:
        print(f"{metric.to_query_string()} ({metric.value_type}) = {metric.value}")

**运行输出：**

Administrator@USER-TJY MINGW64 /f/work-project/jvm-monitor/doc/weblogic (master)  
$ python jmx.py  
Type:Memory\_HeapMemoryUsage\_committed==java.lang:type=Memory/HeapMemoryUsage/committed (Long) = 1820327936  
Type:Memory\_HeapMemoryUsage\_init==java.lang:type=Memory/HeapMemoryUsage/init (Long) = 266338304  
Type:Memory\_HeapMemoryUsage\_max==java.lang:type=Memory/HeapMemoryUsage/max (Long) = 3787980800  
Type:Memory\_HeapMemoryUsage\_used==java.lang:type=Memory/HeapMemoryUsage/used (Long) = 877956624  
Type:Memory\_NonHeapMemoryUsage\_committed==java.lang:type=Memory/NonHeapMemoryUsage/committed (Long) = 155746304  
Type:Memory\_NonHeapMemoryUsage\_init==java.lang:type=Memory/NonHeapMemoryUsage/init (Long) = 2555904  
Type:Memory\_NonHeapMemoryUsage\_max==java.lang:type=Memory/NonHeapMemoryUsage/max (Long) = -1  
Type:Memory\_NonHeapMemoryUsage\_used==java.lang:type=Memory/NonHeapMemoryUsage/used (Long) = 151725664  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=Code Cache/Usage/committed (Long) = 45088768  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=Code Cache/Usage/init (Long) = 2555904  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=Code Cache/Usage/max (Long) = 251658240  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=Code Cache/Usage/used (Long) = 44772480  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=Metaspace/Usage/committed (Long) = 98484224  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=Metaspace/Usage/init (Long) = 0  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=Metaspace/Usage/max (Long) = -1  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=Metaspace/Usage/used (Long) = 95575976  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=Compressed Class Space/Usage/committed (Long) = 12238848  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=Compressed Class Space/Usage/init (Long) = 0  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=Compressed Class Space/Usage/max (Long) = 1073741824  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=Compressed Class Space/Usage/used (Long) = 11446056  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=PS Eden Space/Usage/committed (Long) = 1417150464  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=PS Eden Space/Usage/init (Long) = 66584576  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=PS Eden Space/Usage/max (Long) = 1417150464  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=PS Eden Space/Usage/used (Long) = 580131288  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=PS Old Gen/Usage/committed (Long) = 401604608  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=PS Old Gen/Usage/init (Long) = 177733632  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=PS Old Gen/Usage/max (Long) = 2841116672  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=PS Old Gen/Usage/used (Long) = 308996216  
Type:MemoryPool\_Usage\_committed==java.lang:type=MemoryPool,name=PS Survivor Space/Usage/committed (Long) = 1572864  
Type:MemoryPool\_Usage\_init==java.lang:type=MemoryPool,name=PS Survivor Space/Usage/init (Long) = 11010048  
Type:MemoryPool\_Usage\_max==java.lang:type=MemoryPool,name=PS Survivor Space/Usage/max (Long) = 1572864  
Type:MemoryPool\_Usage\_used==java.lang:type=MemoryPool,name=PS Survivor Space/Usage/used (Long) = 1277952  
Type:GarbageCollector\_CollectionTime==java.lang:type=GarbageCollector,name=PS Scavenge/CollectionTime (Long) = 46496  
Type:GarbageCollector\_CollectionCount==java.lang:type=GarbageCollector,name=PS Scavenge/CollectionCount (Long) = 6871  
Type:GarbageCollector\_CollectionTime==java.lang:type=GarbageCollector,name=PS MarkSweep/CollectionTime (Long) = 8398  
Type:GarbageCollector\_CollectionCount==java.lang:type=GarbageCollector,name=PS MarkSweep/CollectionCount (Long) = 5  
Type:Threading\_ThreadCount==java.lang:type=Threading/ThreadCount (Integer) = 114

[https_github.com_dgildeh_JMXQuery_tree_master_python]: https://github.com/dgildeh/JMXQuery/tree/master/python