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Shotgun debugging
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<h2 id="examples">Examples</h2> <p>Shotgun debugging can occur when working with <a href="/facts/Multi-threaded/hh8WHyPd">multi-threaded</a> applications. Attempting to debug a <a href="/facts/Race_condition/bvNpgy4F">race condition</a> by adding debugging code to the application is likely to change the speed of one <a href="/facts/Thread_(computer_science)/hh8WHyPd">thread</a> in relation to another and could cause the problem to disappear. This is known as a <a href="/facts/Heisenbug/5THWh0k2">Heisenbug</a>. Although apparently a solution to the problem, it is a fix by pure chance and anything else that changes the behavior of the threads could cause it to resurface — for example on a computer with a different <a href="/facts/Scheduling_(computing)/XptmcM1a">scheduler</a>. Code added to any part of the program could easily revert the effect of the "fix". </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Shotgun_surgery/Gb9bArdf">Shotgun surgery</a></li> <li><a href="/facts/Fuzzing/I1GK5kxr">Fuzzing</a></li> <li><a href="/facts/Programming_by_permutation/6XNXJwmM">Programming by permutation</a></li></ul> <p><i>This article is based in part on the <a href="/facts/Jargon_File/tt0EIKfV">Jargon File</a>, which is in the public domain.</i> </p> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Definitions for Shotgun debugging <a href="http://www.definitions.net/definition/shotgun%20debugging" target="_blank">http://www.definitions.net/definition/shotgun%20debugging</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"The Jargon File: shotgun debugging". <a href="http://catb.org/jargon/html/S/shotgun-debugging.html" target="_blank">http://catb.org/jargon/html/S/shotgun-debugging.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>DEFINITION shotgun debugging Posted by: Margaret Rouse WhatIs.com <a href="http://searchsoftwarequality.techtarget.com/definition/shotgun-debugging" target="_blank">http://searchsoftwarequality.techtarget.com/definition/shotgun-debugging</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> </ol>