2.2.2. Lab – Pool Member and Virtual Servers¶

2.2.2.1. Task – Create a new monitor¶

In this task, you will determine the effects of monitors on the status of pools members.

1. Create mysql monitor for testing.

   • Go to Local Traffic > Monitors and select Create.

   Name	mysql_monitor
   Parent Monitor	mysql
   Interval	15
   Timeout	46

2.2.2.2. Task – Effects of Monitors on Members, Pools and Virtual Servers¶

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

2. Observe Availability Status of www_pool. The pool status momentarily changes to Unknown.

   Attention

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

3. 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.

4. Open Local Traffic -> Network Map -> Show Map

   Attention

   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?

5. Clear the virtual server statistics.

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

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

   Attention

   Q6. What is the icon and status of www_vs?

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

   Attention

   Q7. Did traffic counters increment for www_vs?

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

   Make sure all virtual servers are Enabled before continuing.

2.2.2.3. Task – More on status and member specific monitors¶

1. 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.

   Attention

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

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

3. Go to the Network Map.

   Attention

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

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

   Attention

   Q3. Did the site work?

   Q4. Which www_pool members was traffic sent to?

   Important

   After completion of this task remove mysql_monitor from the www_pool health monitors.