TABLE18–9 HTTPService Statistics (Developer Prole)
Statistic Units DataType Comments
bytesreceived Bytes CountStatistic Thecumulative value of the bytes
receivedby each of the request
processors.
bytessent Bytes CountStatistic Thecumulative value of the bytes sent by
eachof the request processors.
currentthreadcount Number CountStatistic Thenumberof processing threads
currentlyin the listener thread pool.
currentthreadsbusy Number CountStatistic Thenumberof request processing
threadscurrently in use in the listener
threadpool serving requests.
errorcount Number CountStatistic Thecumulativevalue of the error count,
whichrepresents the number of cases
wherethe response code is greater than or
equalto 400.
maxsparethreads Number CountStatistic Themaximumnumber of unused
responseprocessing threads that can
exist.
minsparethreads Number CountStatistic Theminimumnumber of unused
responseprocessing threads that can
exist.
maxthreads Number CountStatistic Themaximumnumber of request
processingthreads created by the listener.
maxtime Milliseconds CountStatistic Themaximum amount of time for
processingthreads.
processing-time Milliseconds CountStatistic Thecumulative value of the times taken
toprocess each request. The processing
timeis the average of request processing
timesdivided by the request count.
request-count Number CountStatistic Thetotalnumber of requests processed so
far.
JDBCConnection Pools Statistics

MonitorJDBC resources to measure performance and capture resource usage at runtime. As

thecreation of JDBC connections are expensive and frequently cause performance bottlenecks

inapplications, it is crucial to monitor how a JDBC connection pool is releasing and creating

newconnections and how many threads are waiting to retrieve a connection from a particular

pool.

AboutMonitoring
SunGlassFishEnterprise Ser ver2.1 Administration Guide •December2008182