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TABLE2–2 Connection QueueStatistics
Present Number ofConnections Queued 0
Total Number of Connections Queued 11222922
AverageConnections Over Last 1 Minute 90.35
AverageConnections Over Last 5 Minutes 89.64
AverageConnections Over Last 15 Minutes 54.02
Maximum QueueSize 160032
Peak Queue Size 1853
Number of Connections Overowed 0
Ticks Spent 5389284274
Total Number of Connections Added 425723
Current /Peak /Limit Queue Length
Current/Peak/Limit queue length shows, in order:
■
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.
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 eld on the conguration'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.
UsingMonitoringDatatoTuneYour Server
SunJavaSystemWebServer7.0Update1 PerformanceTuning,Sizing,and ScalingGuide •50