Sun-microsystems GLASSFISH ENTERPRISE 820433510 Manual de usuario Pagina 183

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The statistics available for the JDBC connection pool are shown in the following table.
TABLE 18–10 JDBC Connection Pool Statistics
Statistic Units DataType Description
numconnfailedvalidation Number CountStatistic The total number of connections
in the connection pool that failed
validation from the start time
until the last sample time.
numconnused Number RangeStatistic Provides connection usage
statistics. The total number of
connections that are currently
being used, as well as information
about the maximum number of
connections that were used (the
high water mark).
numconnfree Number CountStatistic The total number of free
connections in the pool as of the
last sampling.
numconntimedout Number BoundedRangeStatistic The total number of connections
in the pool that timed out
between the start time and the last
sample time.
averageconnwaittime Number CountStatistic Indicates the average wait time of
connections for successful
connection request attempts to
the connector connection pool.
waitqueuelength Number CountStatistic Number of connection requests
in the queue waiting to be
serviced.
connectionrequestwaittime RangeStatistic The longest and shortest wait
times of connection requests. The
current value indicates the wait
time of the last request that was
serviced by the pool.
numconncreated Milliseconds CountStatistic The number of physical
connections that were created
since the last reset.
numconndestroyed Number CountStatistic Number of physical connections
that were destroyed since the last
reset.
About Monitoring
Chapter 18 • Monitoring Components and Services 183
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