Cacti Monitoring tomcat

Environment:

Tomcat:apache-tomcat-7.0.35

CactiEZ:10.1

System: centos5.6_x64

1. Configure tomcat server

1. Add an account

Vim tomcat-users.xml

Restart tomcat

2. Install snmp protocol

Yum-y install net-snmp

Vim / etc/snmp/snmpd.conf

Com2sec notConfigUser default public

View mib2 included .iso.org.dod.internet.mgmt.mib-2 fc

View all included. 1 80

Access notConfigGroup "" any noauth exact all none none

/ etc/rc.d/init.d/snmpd restart

3. Test snmp

Test this machine: snmpwalk-c public-v 2c localhost

Test remote host: snmpwalk-V 2c-C public-H 192.168.1.133-L

2. Configure cactiEZ

Install the XML::Simple module

Installation method: (perl-MCPAN-e "install XML::Simple")

Download and import the template

1. The template for monitoring tomcat

TomcatStats-0.1.zip

2. Modify the tomcatstats.pl to set the

My $url = "http://$username:$password"."\@$host/manager/status?XML=true";my $xml = `GET $url`"

Replace the following two behaviors:

My $url = "http://$host/manager/status?XML=true";my $xml = `wget-qO-http-user=$username-- http-password=$password $url`

Note: the O in the-qO here is an uppercase O; otherwise, the data may not come out after you import it.

4. Import template (cacti_host_template_tomcat_server.xml)

Enter cacti-- < Console (console)-< Import Templates (Import template)

5. Upload monitoring script

Upload the tomcatstats.pl to the / var/www/html/scripts directory of the cactiEZ server.

IV. Test script

# / usr/bin/perl tomcatstats.pl 192.168.1.20115 8080 admin 123\ "http-bio-8080\"

Jvm_memory_free:9029383656 jvm_memory_max:9963962368 jvm_memory_total:9963962368 connector_max_time:75 connector_error_count:4 connector_bytes_sent:14896 connector_processing_time:104 connector_request_count:7 connector_bytes_received:0 connector_current_thread_count:11 connector_max_threads:1000 connector_current_threads_busy:1 [root@CactiEZ scripts] #

1. If prompted:-bash:. / tomcatstats.pl: / usr/bin/ Perl ^ M: bad interpreter: No such file

Edit tomcatstats.pl and change the first line to: #! / usr/bin/perl-w (plus-w)

2. If prompted: File does not exist: at. / tomcatstats.pl line 21 (line 21 is: my $status = XMLin ($xml);)

Indicates that the remote tomcat server data cannot be obtained, and check whether the user configured by tomcat is valid.

3. If the output is only jvm data, such as:

Jvm_memory_free:9441488 jvm_memory_max:85196800 jvm_memory_total:23777280 connector_max_time: connector_error_count: connector_bytes_sent: connector_processing_time: connector_request_count: connector_bytes_received: connector_current_thread_count: connector_min_spare_threads: connector_max_threads: connector_max_spare_threads: connector_current_threads_busy: [root@CactiEZ scripts]

Pay attention to the test command and the tomcat version.

Online friends explain as:

The default connector name of Tomcat7's http is http-bio-8090,tomcat6, and the double quotation marks of tomcat's http-bio-8090 must be escaped in perl before they can be parsed, otherwise there is only jvm-related data, and other connector has no data.

5. Configure cactiEZ

Enter cacti--- < console (console)-< Data Input Methods (data input method)-< Tomcat Status

Modify Input String (input string)

Perl / scripts/tomcatstats.pl: 8444 admin passwords http-8080

Modified to:

Perl / scripts/tomcatstats.pl: 8080 admin 123\ "http-bio-8080\"