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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<BODY bgcolor="FFFFFF">
<title>
CMS MessageLogger: Default Limits and Timespans
</title>
<center>
<h1> <img src="header-public.gif" align="center"> </h1>
<font color=red>
<h1>
Default Limits and Timespans for a Destination</h1>
</font>
</center>
<pre>
process TEST = {
service = MessageLogger {
vstring destinations = { "detailedInfo.txt"
, "critical.txt"
, "jobdebug.txt"
, "anotherfile.txt"
, "cout"
, "cerr"
}
vstring categories = { "unimportant"
, "trkwarning"
, "serious_matter"
}
PSet critical.txt = { string threshold = "ERROR"
<font color=red>PSet default = { int32 limit = 10
int32 timespan = 180
}</font>
PSet serious_matter = { int32 limit = 100000 }
}
PSet detailedInfo.txt = { string threshold = "INFO"
<font color=red>PSet default = { int32 limit = 10
int32 timespan = 60
}</font>
PSet WARNING = { int32 limit = 100
int32 timespan = 60
}
PSet ERROR = { int32 limit = 100
int32 timespan = 60
}
PSet trkwarning = { int32 limit = 20
int32 timespan = 1200
}
PSet unimportant = { int32 limit = 5 }
PSet serious_matter = { int32 limit = 1000000 }
}
PSet cerr = { string threshold = "WARNING" }
PSet jobdebug.txt = { <font color=red>PSet default = { int32 limit = 1000000 }</font>
}
PSet anotherfile.txt = { PSet serious_matter = { int32 limit = 1000 }
}
PSet default = { int32 limit = 10
int32 timespan = 60
}
}
untracked PSet maxEvents = {untracked int32 input = 10}
path p = { myAnalysisModule }
module myAnalysisModule = ModuleThatIssuesMessages { }
source = EmptySource { }
}
</pre>
The <font color=red>PSet default = { ... }</font> parameter, inside the context of a given destination,
specifies that for all types of messages <em>other than those explicitly dealt with by their own
Pset's in this destination</em>, there should be a given limit on number of times this destination
will report messages of the same ID.
<p>
For example, having been assigned a default limit of 10 occurrences and timespan of 180 seconds,
critical.txt would report the first 10 occurrences of a edm::LogError("thisID") message, and the first
10 occurrences of a edm::LogError("thatID") message. After the 10 occurrences, an exponential backoff
kicks in. After 180 seconds of no messages of that type, the count is reset, so that 10 more occurrences
could appear.
<p>
The <font color=red>PSet default = { ... }</font> parameter is optional. If neither a default limit nor
a limit specific to the particular message ID is provided, then that destination will report all messages
of that ID.
<p><center>
<img src="bar.gif"></center>
<p><center>
<a href="http://www.uscms.org/SoftwareComputing/index.html">
USCMS Software and Computing Home Page </a> -
<a href="MessageLogger.html"> CMS MessageLogger Service Page </a> -
<a href="parameters.html#complete"> Configuration File </a>
</center>
<p>
<hr>
<address><a href="mailto:mf@fnal.gov">Mark Fischler</a></address>
<!-- hhmts start -->
Last modified: Dec 1, 2005
<!-- hhmts end -->
</body>
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