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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<BODY bgcolor="FFFFFF">
<title>
CMS MessageLogger: Establishing Limits and Timespans
</title>
<center>
<h1> <img src="header-public.gif" align="center"> </h1>
<font color=red>
<h1>
Establishing Limits and Timespans </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"
PSet default = { <font color=red>int32 limit = 10</font>
<font color=red>int32 timespan = 180</font>
}
PSet serious_matter = { int32 limit = 100000 }
}
PSet detailedInfo.txt = { string threshold = "INFO"
PSet default = { <font color=red>int32 limit = 10
int32 timespan = 60</font>
}
PSet WARNING = { <font color=red>int32 limit = 100
int32 timespan = 60</font>
}
PSet ERROR = { <font color=red>int32 limit = 100
int32 timespan = 60</font>
}
PSet trkwarning = { <font color=red>int32 limit = 20
int32 timespan = 1200</font>
}
PSet unimportant = { <font color=red>int32 limit = 5</font> }
PSet serious_matter = { <font color=red>int32 limit = 1000000</font> }
}
PSet cerr = { string threshold = "WARNING" }
PSet jobdebug.txt = { PSet default = { <font color=red>int32 limit = 1000000</font> }
}
PSet anotherfile.txt = { PSet serious_matter = { <font color=red>int32 limit = 1000</font> }
}
PSet default = { <font color=red>int32 limit = 10
int32 timespan = 60</font>
}
}
untracked PSet maxEvents = {untracked int32 input = 10}
path p = { myAnalysisModule }
module myAnalysisModule = ModuleThatIssuesMessages { }
source = EmptySource { }
}
</pre>
The Pset entries <font color=red>int32 limit = ...</font> and
<font color=red>int32 timespan = ...</font> establish that this
destination should report only so many messages of a specified
specified messageID or severity level. For example, detailedInfo.txt
will report only the first twenty trkwarning messages, before
ignoring most of the rest (with an exponential backoff).
<p>
The timespan, if supplied, directs the destination to reset its count of
how many times a message of this type has been encountered if no messages
of this type occur within that many seconds. For example, if this job issues
25 trkwarning messages at the start, then 25 additional messages more than
20 minutes (1200 seconds) later, the first twenty of each group would be reported.
A limit can be supplied without a timespan. Supplying a timespan without a
limit is meaningless.
<p>
These are optional. Each destination can supply limit and timespan for all,
some, or none of severity levels, listed message IDs, and default
(all message IDs without explicit specification). Note that if both the limit
and the timespan are specified, they are not comma-separated (since they are
two distinct elements in a PSet).
<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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