TABLE2–2 ConnectionQueue Statistics
PresentNumber of Connections Queued 0
TotalNumber 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
MaximumQueue Size 160032
PeakQueue Size 1853
Numberof Connections Overowed 0
TicksSpent 5389284274
TotalNumber of Connections Added 425723
Current/Peak /Limit Queue Length
Current/Peak/Limit queue length shows, in order:
■Thenumber of connections currently in the queue.
■Thelargest number of connections that have been in the queue simultaneously.
■Themaximum size of the connection queue. This number is:
MaximumQueue Size = Thread Pool Queue Size + Maximum Threads + Keep-Alive Queue
Size
Oncethe connection queue is full, new connections are dropped.
Tuning
Ifthe peak queue length (maximum queue size) is close to the limit, you can increase the
maximumconnection queue size to avoid dropping connections under heavy load.
Youcan increase the maximum connection queue size in the Admin Console by changing the
valueof the thread pool Queue Size eld on the conguration's Performance tab ⇒HTTP sub
tab.The default is 1024.
Tochange the queue size using the command-line interface, use the wadm
set-thread-pool-propcommand's queue-size property.
TotalConnections Queued
TotalConnections Queued is the total number of times a connection has been queued. This
numberincludes newly-accepted connections and connections from the keep-alive system.
UsingMonitoringData to TuneYour Server
SunJavaSystem Web Server 7.0 Update 1 Performance Tuning,Sizing, and Scaling Guide •50