APM webtrace
Procedures When experiencing web application issues, you can use the following procedure to collect a trace of the web application engine, and then analyze the trace file. Configuring the BIG-IP APM to capture a web application session to a trace file Have a user who is assigned the affected web application log in to the BIG-IP APM. Log in to the BIG-IP command line. To obtain the user's session ID, type the following command, where <username> is the logon name of the user from Step 1: sessiondump -allkeys | grep <username> For example: 65a6b075.session.assigned.uuid 26 tmm.uuid.AD-Basic.jsmith 65a6b075.session.logon.ad_auth_and_resources_act_logon_page_ag.username 8 jsmith 65a6b075.session.logon.last.username 8 jsmith The session ID appears at the beginning of the line of output. In the example above, the session ID for the user jsmith is 65a6b075. Enable a web applications trace for the session ID you recorded above by typing the following command, where <session-id> is the session ID recorded in Step 3. tmsh modify /sys db "log.webapplications.trace.sessionid" { value "<session-id>" } For example: tmsh modify /sys db "log.webapplications.trace.sessionid" { value "65a6b075" } Have the user access the affected web application. After the user has accessed the application, change directories to the directory of the webtrace by entering the following command: cd /var/tmp/WebAppTrace/<sessionid> In this command, note the following: <sessionid> is the user's session ID For example: cd /var/tmp/WebAppTrace/65a6b075/ To create the webtrace.tgz file and add the webtrace data, enter the following command: /usr/bin/webtrace.finish
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