JVM内存监控shell脚本

该shell脚本主要用于监控各个进程的jvm内存使用情况，脚本名称：jvm-monitor.sh，具体脚本如下：
[root@loong /]#more jvm-monitor.sh

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1#!/bin/bash  

2export JAVA_PATH=/callcent/jdk1.6.0_25  

3export PATH=$PATH:$JAVA_PATH/bin:/sbin:/usr/sbin:/usr/local/sbin:/root/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/games:/usr/lib/mit/bin:/usr/lib/mit/sbin  

4sysdate=date

5

6for pid in jps -v |grep weblogic|grep -v AdminServer |awk '{print $1}'

7

8do  

9addr=ifconfig -a|grep -w inet|grep -v 127.0.0.1|grep -v 172.16.1.1|awk '{print $2}'|cut -d : -f 2  

10java_name=$(ps -ef|grep weblogic|grep $pid|grep -v AdminServer)  

11name=echo ${java_name}|sed 's/^.\*-Dweblogic.Name=//g'|awk '{print $1}'

12

13#jvm内存监控  

14echo ###########################################  

15echo $sysdate  

16echo pid $pid  

17echo name $name  

18echo $addr

19

20if [ "$pid" = "" ]  

21then  

22echo "the program is not exists."  

23exit 0  

24fi

25

26heap=$(jmap -heap ${pid})

27

28eden=echo ${heap}|sed 's/^.*Eden Space://g'|sed 's/From Space.*$//g'|awk '{print $13}'|sed 's/%.*$//g'|cut -b 1-6

29from=echo ${heap}|sed 's/^.*From Space://g'|sed 's/To Space.*$//g'|awk '{print $13}'|sed 's/%.*$//g'|cut -b 1-6

30tospc=echo ${heap}|sed 's/^.*To Space://g'|sed 's/tenured generation.*$//g'|awk '{print $13}'|sed 's/%.*$//g'|cut -b 1-6

31oldge=echo ${heap}|sed 's/^.*PS Old Generation//g'|sed 's/Perm Generation.*$//g'|awk '{print $13}'|sed 's/%.*$//g'|cut -b 1-6

32perm=echo ${heap}|sed 's/^.*PS Perm Generation//g'|awk '{print $13}'|sed 's/%.*$//g'|cut -b 1-66

33

34echo "Eden Space: ${eden}%"  

35echo "From Space: ${from}%"  

36echo "To Space: ${tospc}%"  

37echo "Old Generation: ${oldge}%"  

38echo "Perm Generation: ${perm}%"

39

40eden1=gawk -v x=$eden -v y=1000 'BEGIN{printf "%.0f\n",x*y}'  

41from1=gawk -v x=$from -v y=1000 'BEGIN{printf "%.0f\n",x*y}'  

42tospc1=gawk -v x=$tospc -v y=1000 'BEGIN{printf "%.0f\n",x*y}'  

43oldge1=gawk -v x=$oldge -v y=1000 'BEGIN{printf "%.0f\n",x*y}'  

44perm1=gawk -v x=$perm -v y=1000 'BEGIN{printf "%.0f\n",x*y}'

45

46#取对应进程的jvm内存值  

47for name1 in $name   

48do

49

50if [ ${eden1} -ge "99999" ]  

51then  

52jvm=$jvm+${name1}+":Eden Space:"+${eden}+"%超阀值 "  

53fi

54

55if [ ${from1} -ge "99999" ]  

56then  

57jvm=$jvm+${name1}+":From Space:"+${from}+"%超阀值 "  

58fi

59

60if [ ${tospc1} -ge "99999" ]  

61then  

62jvm=$jvm+${name1}+":To Space:"+${topspc}+"%超阀值 "  

63fi

64

65if [ ${oldge1} -ge "99999" ]  

66then  

67jvm=$jvm+${name1}+":Old Generation:"+${oldge}+"%超阀值 "  

68fi

69

70if [ ${perm1} -ge "99999" ]  

71then  

72jvm=$jvm+${name1}+":Perm Generation:"+${perm}+"%超阀值 "  

73fi

74

75echo $jvm  

76done

77

78#端口监控  

79if [ "$name" = "baobiao" ]  

80then  

81port='91400'   

82fi

83

84if [ "$name" = "csr" ]  

85then  

86port='91200'  

87fi

88

89if [ "$name" = "sso" ]  

90then  

91port=91500  

92fi

93

94if [ "$name" = "gongdan" ]  

95then  

96port=91100  

97fi

98

99if [ "$name" = "manager" ]  

100then  

101port=91300  

102fi

103

104if [ "$name" = "cron" ]  

105then  

106port=91090  

107fi

108

109net=netstat -an |grep $port|grep LISTEN|grep $addr

110

111if [ "$net" = "" ]  

112then  

113p1=$p1+${port}+"端口异常"  

114fi

115

116#echo $pid  

117#echo $port  

118#echo $name

119

120done  

121#p2=$p1+"端口异常"

122

123#url监控  

124http=curl -I -m 10 -o /dev/null -s -w %{http_code}"\n" http://www.callcent.kefu.com/sso/jsp/login.jsp

125

126#echo $http

127

128if [ "$http" != "200" ]  

129then  

130http1="统一登陆页面http://www.xxxxxx.com/sso/jsp/login.jsp访问异常"  

131fi

132

133echo $p1  

134echo $addr  

135echo $http1

136

137#发送告警信息  

138if [ -n "$p1" -o -n "$http1" -o -n "$jvm" ]  

139then  

140curl -d "action=SendMessage&msg=ip:${addr} $jvm ${p1} ${http1};&usernames=user1;user2" http://172.xx.xx.xxx:8090/TestService.ashx  

141fi

142

通过定时任务调用该脚本（该脚本每30秒执行一次）：
* * * * * /monitor/script/monitor19.sh >> /monitor/log.txt
[root@loong /]#more /monitor/script/monitor19.sh

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1#!/bin/bash   

2export JAVA_PATH=/callcent/jdk1.6.0_25  

3export PATH=$PATH:$JAVA_PATH/bin:/sbin:/usr/sbin:/usr/local/sbin:/root/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/games:/usr/lib/mit/bin:/usr/lib/mit/sbin

4

5step=30 #间隔的秒数，不能大于60，表示每半分钟执行一次

6

7for (( i = 0; i < 60; i=(i+step) )); do   

8/monitor/script/jvm-monitor.sh  

9sleep $step   

10done   

11exit 0

12