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Copyright © 2010, Juniper Networks, Inc.
Table 38: Device Server Settings (continued)
Parameter
profilerMgr.receiver.saveFailedData
profilerMgr.receiver.maxParallelConns
profilerMgr.receiver.minPollTimeInSec
profilerMgr.receiver.vacuumCostDelay
profilerMgr.receiver.vacuumCostLimit
profilerMgr.receiver.minVacuumInterval
profilerMgr.receiver.performVacuumFull
profilerMgr.receiver.optimizationWindow
profilerMgr.profilerQuerier
.profilerQueryTimeoutInterval
NSM Generated Logs' Impact on Performance
If you notice "Could not write the whole buffer to FIFO" entries in the deviceDaemon log
files, we recommend that you turn off NSM generated logs by unchecking the "New Host"
, "New Protocol" , and "New Port" detected check boxes in the IDP device editor, and
save the data. Excessive messages indicating "Could not write the whole buffer to FIFO"
could indicate that Device Server performance is affected by these NSM generated logs.
Appendix C: Profiler Performance Tuning Recommendations
Description
Profiler Data of a profiler session is
stored temporarily in the folder .
$NSROOT/DevSvr/var/profiler_data/
domainId.deviceId.sessionId
If a session completes successfully this
folder is cleaned up. Otherwise, the
folder is cleaned up unless this setting
is 'YES'.
Specifies maximum number of
concurrent profiler sessions.
Two consecutive profiler sessions for
the same device is spaced apart by at
least this interval.
The length of time, in milliseconds, that
the vacuum process will sleep when the
vacuumCostLimit has been exceeded.
The accumulated cost that will cause
the vacuuming process to sleep.
Minimum time interval between two
consecutive vacuums.
If this setting is 'YES', VACUUM FULL is
performed during optimization
otherwise skipped.
This specifies the time window in hours
from the 'hour to perform optimization'
setting of GUI >System Preferences
>Profiler Settings. Optimization would
be triggered only during this window.
A GUI query session is timed out if there
is no activity for this interval.
Default
Value
NO
3
300
seconds
0 msec
200 msec
300
seconds
NO
3 hours
600
seconds
215
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