Pool Member and Virtual Servers

In this exercise, you will determine the effects of monitors, and on the status of pools members and virtual servers. You will also review the hierarchal effects of changes in status of various configuration objects.

Create a new monitor

Create mysql monitor for testing.

Go to Local Traffic > Monitors and select Create.

Name	mysql_monitor
Parent Monitor	mysql
Interval	15
Timeout	46

Effects of Monitors on Members, Pools and Virtual Servers

Go to Local Traffic > Pools > www_pool and assign ths mysql_monitor to the pool.

Observe availability status of www_pool. The pool status momentarily changes to Unknown.

Q1. Since the mysql_monitor will fail, how long will it take to mark the pool offline?

Go to Local Traffic > Pool > www_pool and then Member from the top bar and open member 10.1.20.13:80 and note the status of the monitors.

Open Local Traffic -> Network Map -> Show Map

Q2. What is the icon and status of www_vs?

Q3. What is the icon and status of www_pool?

Q4. What is the icon and status of the www_pool members?

Q5. How does the status of the pool configuration effect the virtual server status?

Clear the virtual server statistics.

Browse to http://10.1.10.100 and note the browser results, statistics and tcpdump.

Disable www_vs and clear the statistics and ping the virtual server.

Q6. What is the icon and status of www_vs?

Browse to http://10.1.10.100 and note the browser results, statistics and tcpdump..

Q7. Did traffic counters increment for www_vs?

Q8. What is the difference in the tcpdumps between Offline (Disabled) vs Offliine (Enabled)?

Important

Make sure all virtual servers are Enabled before continuing.

More on status and member specific monitors

Go to Local Traffic > Pool > www_pool and then Member from the top bar and open member 10.1.20.13:80. Enable the Configuration: Advanced menus.

Q1. What is the status of the Pool Member and the monitors assigned to it?

In Health Monitors select Member Specific and assign the http monitor and Update.

Go to the Network Map.

Q2. What is the status of www_vs, www_pool and the pool members? Why?

Browse to http://10.1.10.100 and note results of browser and tcpdump.

Q3. Did the site work?

Q4. Which www_pool members was traffic sent to?

Important

After completing this task remove mysql_monitor from the www_pool health monitors