apache web server (aws) monitoring

The Professional Open Source™ Company

Apache Web Server (AWS) Monitoring

JBossNetwork Enterprise Manager

2 The Professional Open Source™ Company

Agenda

• Supported versions of AWS• Configuring AWS for management• Supported Metrics and Control Actions• Metric Data Collection, Control, and

Alerting

Supported Versions of AWS

Supported on UNIX (Linux, Solaris, HP/UX) and Windows:

• Apache Web Server 1.3.x 2.0.x

• Covalent Enterprise Ready Server (ERS) 2.3 2.4

Setting up AWS in JBN EM

• Steps are as follows Install AWS on a JBN EM-managed platform Prepare AWS for management via JBN EM Start the JBN EM agent on the host running AWS Launch the JBN EM Console and run a new auto-

discovery scan on the platform Import the AWS instance Complete resource configuration for the AWS

server and virtual hosts Exercise the AWS instance

Preparing AWS for management

• AWS instances support monitoring capabilities via third party DSO’s/modules: SNMP module (mandatory) RT module (needed for response time

collection)• Installing a module in AWS:

Getting a copy of the binary Copying the module under the AWS

installation Updating AWS configuration to use the

module

Installing SNMP/RT modules into AWS on UNIX

SNMP/RT modules can be built from the JBN EM full/agent distributions on UNIX.

Prerequisite: AWS must have been configured with --enable-so for the SNMP and RT modules to be installed.

A. SNMP Module:1. Compile and deposit the SNMP module.

cd JBNEM_AGENT_INSTALL_DIR% tar –zxf jbn-em-agent-jboss-1.0.xx/product_connectors/snmp-jboss-1.0.xx.tgz % cd snmp-jboss-1.0.xx% ./build_apache_snmp.sh 2.0 APACHE_INSTALL_DIR/bin/apxs % cp snmp_module_2.0/module/*.so APACHE_INSTALL_DIR/modules % cp snmp_module_2.0/conf/snmpd.conf APACHE_INSTALL_DIR/conf % mkdir APACHE_INSTALL_DIR/var

2. Edit APACHE_INSTALL_DIR/conf/httpd.conf, adding:

LoadModule snmpcommon_module modules/libsnmpcommon.so LoadModule snmpagt_module modules/libsnmpmonagt.so SNMPConf conf SNMPVar var

ServerName www.mydomain.com:80 (use appropriate domain name and port number)

3. Restart AWS

% APACHE_INSTALL_DIR/bin/apachectl restart

Installing SNMP/RT modules in AWS on UNIX (continued)

B. RT Module1. Compile and deposit the module:

cd JBNEM_AGENT_INSTALL_DIR% tar –zxf jbn-em-agent-jboss-1.0.xx/product_connectors/rt-jboss-1.0.xx.tgz % cd rt-jboss-1.0.xx% ./build_apache_module.sh 2.0 APACHE_INSTALL_DIR/bin/apxs % cp apache2.0/unix/.libs/mod_rt.so APACHE_INSTALL_DIR/modules

2. Edit APACHE_INSTALL_DIR/conf/httpd.conf, adding:

LoadModule rt_module modules/mod_rt.so

LogFormat "%S" rt_log CustomLog logs/rt_log rt_log

3. Restart the AWS

% APACHE_INSTALL_DIR/bin/apachectl restart

Installing SNMP/RT modules into AWS on Windows

Pre-built SNMP/RT modules are included in the JBN EM full/agent distributions on Windows.

1. Unzip the file JBNEM_INSTALL_DIR\product_connectors\apache-2.0-x86-winnt.zip

toAPACHE_INSTALL_DIR

2. Edit APACHE_INSTALL_DIR\conf\httpsd.conf to add:LoadModule snmpcommon_module modules/libsnmpcommon.so LoadModule snmpagt_module modules/libsnmpmonagt.so SNMPConf conf SNMPVar var

LoadModule rt_module modules/mod_rt.so

LogFormat "%S" rt_logCustomLog logs/rt_log rt_log

ServerName www.mydomain.com:80 (use appropriate domain name and port number)

3. Restart AWS

Importing AWS into JBN EM inventory

• Make sure AWS and JBN EM agent are running on the managed platform

• Launch JBN EM console• Run auto-discovery• Import AWS into the inventory

Auto-discovered AWS instance

Completing configuration of AWS resources

Was AWS pre-configured for management?• Yes

Sanity check on console Configure virtual host resources

• No Perform configuration from scratch Import discovered virtual hosts Configure virtual host resources

Verify AWS server configuration

Configure AWS server resource Go to the Inventory/Configuration page for

the AWS server• Configuration settings are displayed on

the page• Click on the EDIT button under the section

titled “Configuration Properties” Enable auto-discovery of virtual hosts

Configuration settings of the AWS server

Modifying AWS server configuration

Instructions for installing SNMP modules

Configuring AWS virtual hosts

Go to the Inventory/Configuration page for the AWS virtual host

• Verify/modify configuration settings Optionally enable service response

time collection

Configuration settings of a virtual host

Modifying virtual host configuration

Instructions for installing the Response Time module

Components of AWS Monitoring

• Metric data collection• Control• Alerting

Metric Data Collection

• Each version of AWS has a “universe” of metrics• Server metrics:

Availability• availability• start time

Throughput• Number of GET requests per minute, Total number of

requests per minute, Total number of bytes sent etc. Resource Utilization

• Number of concurrent connections• Virtual host metrics:

Availability• availability

Throughput• Number of GET requests per minute, Total number of

requests per minute, Total number of bytes sent etc. Response Time

• service time

List of Apache server metrics

Enabling metric data collection

• Configuration supports: Selection of metrics for collection

specifying the collection interval Modifying collection interval for metric Disabling collection for metric

Selecting metrics and collection intervals

Viewing metric data

Metric data in chart form

Response time stats for virtual host

Control Actions on AWS resources

• Server Start Stop Restart

• Virtual Host None

Scheduling a control action

Alerts on AWS resources

• Full range of alerting semantics apply to AWS resources

• Alerts Can be defined on any metric on

• AWS server• AWS virtual hosts

Can be combined with control actions on AWS server

Defining an Apache server alert

Defining a recovery alert

Trigger notification on Dashboard for problem alert

Trigger notification on Dashboard for recovery alert

Review

• We’ve covered The inventory and configuration of AWS

and embedded services Metric data collection and display Performing control actions Creating alerts on metric values

Thanks for your time!

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