Connection Queue Statistics - Sun Microsystems Sun Java System Web Server 7.0 Manual

Using Monitoring Data to Tune Your Server
TABLE 2–2
Present Number of Connections Queued
Total Number of Connections Queued
Average Connections Over Last 1 Minute
Average Connections Over Last 5 Minutes
Average Connections Over Last 15 Minutes
Maximum Queue Size
Peak Queue Size
Number of Connections Overflowed
Ticks Spent
Total Number of Connections Added
Current /Peak /Limit Queue Length
Current/Peak/Limit queue length shows, in order:
■
■
■
Tuning
If the peak queue length (maximum queue size) is close to the limit, you can increase the
maximum connection queue size to avoid dropping connections under heavy load.
You can increase the maximum connection queue size in the Admin Console by changing the
value of the thread pool Queue Size field on the configuration's Performance tab ⇒ HTTP sub
tab. The default is 1024.
To change the queue size using the command-line interface, use the wadm
set-thread-pool-prop command's queue-size property.
Total Connections Queued
Total Connections Queued is the total number of times a connection has been queued. This
number includes newly-accepted connections and connections from the keep-alive system.
50 Sun Java System Web Server 7.0 Update 1 Performance Tuning, Sizing, and Scaling Guide •

Connection Queue Statistics

The number of connections currently in the queue.
The largest number of connections that have been in the queue simultaneously.
The maximum size of the connection queue. This number is:
Maximum Queue Size = Thread Pool Queue Size + Maximum Threads + Keep-Alive Queue
Size
Once the connection queue is full, new connections are dropped.
0
11222922
90.35
89.64
54.02
160032
1853
0
5389284274
425723