python查询hdfs jmx信息

#!/user/bin/python
import urllib2
import json

print ‘=============================================‘
 
html = urllib2.urlopen(r‘http://192.168.137.105:50070/jmx?qry=Hadoop:service=NameNode,name=JvmMetrics‘)
 
hjson = json.loads(html.read())
 
#print hjson[‘beans‘]
print hjson[‘beans‘][0][‘name‘]
print hjson[‘beans‘][0][‘modelerType‘]
print hjson[‘beans‘][0][‘MemNonHeapUsedM‘]
print hjson[‘beans‘][0][‘MemHeapUsedM‘]

print ‘=============================================‘

html2 = urllib2.urlopen(r‘http://192.168.137.105:50070/jmx?get=Hadoop:service=NameNode,name=JvmMetrics::MemHeapUsedM‘)
hjson2 = json.loads(html2.read())
heapUsed = hjson2[‘beans‘][0][‘MemHeapUsedM‘]
print heapUsed

html3 = urllib2.urlopen(r‘http://192.168.137.105:50070/jmx?get=Hadoop:service=NameNode,name=FSNamesystem::BlocksTotal‘)
hjson3 = json.loads(html3.read())
blockTotal = hjson3[‘beans‘][0][‘BlocksTotal‘]
print blockTotal