I’m going to post an answer here. This answer may not work for you (See Step 5). It varies a lot from person to person. After so many days spent in research, robin-a-meade’s post from GitHub was the one that nailed it. Before starting, the main problem seems to lie in the source mapping’s URL … Read more
There’s a few excellent blogs out there that help to gain windbg proficiency on an everyday basis: Dr. Debugalov Nynaeve Advanced Windows Debugging Debugging Toolbox Debugging Tricks Oleg Starodumov List of posts from/to Ivan Brugiolo Windbg by Volker von Einem I, personally, just started using windbg for all my debugging tasks and soon enough there … Read more
Heisenbugs: A heisenbug (named after the Heisenberg Uncertainty Principle) is a computer bug that disappears or alters its characteristics when an attempt is made to study it.
You can profile your app with node-tick. Install node-tick by sudo npm -g install tick Run your app with enabled profile node –prof ./app.js After some time with CPU 100% usage stop your app You can see v8.log in your app directory, now you can read it with node-tick-processor Run node-tick-processor and explain the results … Read more
Updatier: The Mene+Shuman fix now is busted with Firefox 30 and Firebug 2. Firefox 31 may provide workarounds (will investigate). In the meantime, use the “General workaround strategies” listed below. Update: This answer is now obsolete. If you open about:config and set extensions.firebug.filterSystemURLs to false then you can use Firebug to debug the Greasemonkey script … Read more
Update: there’s currently a redesign of coffeescript compiler that generates source maps, which should enable you to debug your coffeescript in most recent versions of Google Chrome (18 and upwards I think). I think it’s not production-ready yet, but it’s worth mentioning.
The GHCi option -fbreak-on-exception can be useful. Here’s an example debugging session. First we load our file into GHCi. $ ghci Broken.hs GHCi, version 7.0.2: http://www.haskell.org/ghc/ 😕 for help Loading package ghc-prim … linking … done. Loading package integer-gmp … linking … done. Loading package base … linking … done. Loading package ffi-1.0 … linking … Read more
This setting is in app/config/config_dev.yml: web_profiler: toolbar: true intercept_redirects: false
For JSP debugging in Intellij there are some configurations that must be in order. The fact that Intellij always allows you to add a breakpoint on a JSP line does not necessarily imply that you’ve configured JSP debugging. In the following I refer to Intellij 8 configuration, w.r.t. previous versions you will need to do … Read more
In versions of ElasticSearch prior to 5, you can accomplish this by changing the ElasticSearch.yml configuration file. At the very bottom of this file, you can adjust the logging time to record all: index.search.slowlog.threshold.query.warn: 10s index.search.slowlog.threshold.query.info: 5s index.search.slowlog.threshold.query.debug: 2s index.search.slowlog.threshold.query.trace: 500ms index.search.slowlog.threshold.fetch.warn: 1s index.search.slowlog.threshold.fetch.info: 800ms index.search.slowlog.threshold.fetch.debug: 500ms index.search.slowlog.threshold.fetch.trace: 200ms index.indexing.slowlog.threshold.index.warn: 10s index.indexing.slowlog.threshold.index.info: 5s index.indexing.slowlog.threshold.index.debug: 2s … Read more