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- Both SNFServer and SNFClient can be run in a debugging mode which
- produces additional output. In order to run these programs in debug
- mode you can rename them so that "debug" or "Debug" is in their name,
- or you can call them in a sub directory so that the path to the
- program conains "debug" or "Debug".
-
- SNFDebugClient --
-
- The SNFClient debug mode will display the entire XCI session for each
- call. This is a good way to see how XCI is used if you want to explore
- communicating with the SNFServer directly from your programs.
-
- SNFDebugServer --
-
- The SNFServer debug mode will display a thread status report each
- second along with the usual running statistics line. The thread status
- report will show all active theads, what they are doing (generally),
- and whether they are running or have stopped. If a thread stops due to
- an unhandeled exception then information about that exception will be
- displayed in the status report.
-
- The snf-server control script can be used to run the server in debug
- mode and capture it's output in a file called debug.log (in directory
- /var/log/snf-server by default). Please see the Debugging section of
- INSTALL in the top-level directory of the distribution for the
- procedure and further details.
-
- 20080325 -- At this time there are a few systems that are reporting an
- intermittent bug where SNFServer will either stop answering requests
- or it will stop reporting telemetry. When this happens there are no
- errors reported in logs, no exceptions thrown, no corrupted programs,
- nothing unusual at all --which is, of course, the most unusual thing
- of all. The program continues to run -- it's just not listening (or
- talking).
-
- On all but a handfull of systems SNFServer runs reliably for hundreds
- of days at a time without stopping until told to do so... This
- includes our lab computers... We hate mysteries -- the thread status
- report is designed to help us learn something about this bug since we
- are not yet able to reproduce it.
-
- To run SNFServer in debug mode, use the procedure in the INSTALL file
- (or you can launch it your own way -- the goal is to capture stdout
- and errout to a file called debug.log so that we can, hopefully, learn
- something).
-
- If you are not experiencing the bug then please run SNFServer in the
- normal way.
-
- Thanks
-
- _M
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