1httpdtap(8)                     httpdtap Manual                    httpdtap(8)
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NAME

6       httpdtap - Utility for querying httpd using SystemTap scripts.
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SYNOPSIS

9       httpdtap <command> [[stap_argument], ...] [[arg], ...]
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11       httpdtap help <command>
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13       httpdtap --version
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DESCRIPTION

16       The  purpose  of the httpdtap utility is to query running httpd process
17       to get various debugging or performance related data from it.
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19       Examples of such data could be the list  of  files  accessed  during  a
20       request, time needed to dispatch a request, the list of requests slower
21       than N milliseconds or the list of requests  sent  from  particular  IP
22       address.
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24       Thanks  to  SystemTap the performance penalty is very low and therefore
25       the httpdtap can be used even on production systems.
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ACTIONS

28       Without any argument passed to httpdtap, httpdtap shows the  help  mes‐
29       sage and the list of available commands.
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31       <command> [[stap_argument], ...] [[arg], ...]
32           Executes  httpdtap  command.  List  of  available  commands  can be
33           obtained by executing httpdtap without any arguments. stap_argument
34           is optional and is the argument passed to stap command. These argu‐
35           ments are listed in stap(8) manpage. Usage of argument arg  depends
36           on  particular  commands which is going to be executed and is docu‐
37           mented in help <command> output.
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39       help <command>
40           Shows help message related to particular httpdtap command.
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42       --version
43           Shows httpdtap version.
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AUTHORS

46       ·   Jan Kaluza <jkaluza@redhat.com>
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SEE ALSO

49       stap(8)
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51       For    more    information,    see    the    httpdtap    homepage    at
52       http://github.com/hanzz/httpdtap/
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56Version 0.2                   September 10, 2013                   httpdtap(8)