Sun Microsystems Sun GlassFish Enterprise Server 2.1, Administration Manual

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TABLE 18–10
JDBC Connection Pool Statistics (Continued)
Statistic Units Data Type Description
numconnacquired
Number CountStatistic Number of logical connections
acquired from the pool.
numconnreleased
Number CountStatistic Number of logical connections
released to the pool.
JMS/Connector Service Statistics
The statistics available for the connector connection pools are shown in Table 18–11 . Statistics
for Connector Work Management are shown in Table 18–12 .
TABLE 18–11
Connector Connection Pool Statistics
Statistic Units Data Type 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 RangeStatistic The total number of free connections in
the pool as of the last sampling.
numconntimedout
Number CountStatistic The total number of connections in the
pool that timed out between the start
time and the last sample time.
averageconnwaittime
Number CountStatistic Average wait time of connections before
they are serviced by the connection pool.
waitqueuelenght
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.
About Monitoring
Sun GlassFish Enterprise Server 2.1 Administration Guide • December 2008 184