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I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines for some time. I experimented with keeping all of ~ in subversion for a while, but it never worked out well for me. I’ve finally settled on a solution that I like using git, and so this is a writeup of my workflows for working with my dotfiles in git, in the hopes that someone else might find it useful.
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I’ve been looking for a good solution for versioning and synchronizing my dotfiles between machines for some time. I experimented with keeping all of ~ in subversion for a while, but it never worked out well for me. I’ve finally settled on a solution that I like using git, and so this is a writeup of my workflows for working with my dotfiles in git, in the hopes that someone else might find it useful.
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Oracle Troubleshooting: How to read Oracle ERRORSTACK output?!
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tanelpoder.com
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16 years ago
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eng
I have written the first article to the troubleshooting section of my new website tech.E2SN.com: It’s about a very valuable Oracle troubleshooting tool -> ERRORSTACK trace. I cover 4 frequently asked questions there: Reading the current executing SQL statement text from errorstack trace Reading the current executing PL/SQL package and PL/SQL source code line number from errorstack trace Reading the current bind variable values from er..
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Oracle Troubleshooting: How to read Oracle ERRORSTACK output?!
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tanelpoder.com
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16 years ago
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eng
I have written the first article to the troubleshooting section of my new website tech.E2SN.com: It’s about a very valuable Oracle troubleshooting tool -> ERRORSTACK trace. I cover 4 frequently asked questions there: Reading the current executing SQL statement text from errorstack trace Reading the current executing PL/SQL package and PL/SQL source code line number from errorstack trace Reading the current bind variable values from er..
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Why in the world do some programming languages include optional syntax? To a true type A engineer, this is incomprehensible and unacceptable. For example, in Adobe's ActionScript, statements may optionally be terminated with a semicolon. Usually this is not required, except in a few situations you need it. Evil. The statement that our number one job as software engineers is to manage complexitity really resonates with me, and willy nilly al....
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Many projects reference environment variables at either build time, install time, or run time to handle configuration that can't be made to work across all of the target environments. It is better to use plain text simple configuration files for the reasons that follow. First, let's quickly review common usage of environment variables. Directory path to supporting tools and libraries (JAVA_HOME, LD_LIBRARY_PATH, CATALINA_HOME, etc) Cust....
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ouch. just... ouch. but awesome. but I'm glad to hear that bandcamp is still going strong behind-the-scenes!
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ouch. just... ouch. but awesome. but I'm glad to hear that bandcamp is still going strong behind-the-scenes!
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I have an Nginx frontend to serv everything but confluence which was not happy with my SSLized conf, here is the solution ! This doc is related to confluence but will works with any java apps in a tomcat First don’t use the standalone version of confluence (which is a Tomcat 5.5), use the EAR/WAR tar gz archive. We need Tomcat 6 cause we will use a “Valve” [RemoteIPValve](http://tomcat.apa che.org/tomcat-6.0-doc/api/org/apache/catalina/valv..
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Software testing is a powerful tool when creating all types of applications. That’s why it is also so important to test it in details so that a chance of an unexpected fail is minimal. We say it so: all code you write must be tested with minimum 2 types of tests: positive and negative. A positive test is a test that verifies a correct functionality, a negative test verifies that a function will fail or throw an exception. Let’s see how it w..
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Using Process Memory Matrix script for calculating Oracle process memory usage on Solaris
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tanelpoder.com
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16 years ago
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eng
I just published a new script and article about calculating the real Oracle process memory usage on Solaris. The problem with V$PROCESS* views (and the V$SESSTAT) is that they will tell you what Oracle thinks it’s using, not the real amount of memory used. There will be discrepancies due how memory is actually allocated in OS, libraries out of Oracle’s control, the static memory areas inside Oracle binary and of course bugs.
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Using Process Memory Matrix script for calculating Oracle process memory usage on Solaris
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tanelpoder.com
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16 years ago
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eng
I just published a new script and article about calculating the real Oracle process memory usage on Solaris. The problem with V$PROCESS* views (and the V$SESSTAT) is that they will tell you what Oracle thinks it’s using, not the real amount of memory used. There will be discrepancies due how memory is actually allocated in OS, libraries out of Oracle’s control, the static memory areas inside Oracle binary and of course bugs.
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If you want to generate code, make sure your target language is not Java
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www.databasesandlife.com
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16 years ago
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eng
I tried to write a program using Java; it all seemed to be going well but then I hit a ridiculous limit. Java cannot be used for this type of problem. I have now completely re-written it in a different programming language, and that works fine. Be aware of this limit. I was unaware of it when I started this project. But it makes Java completely unsuitable for a whole class of problem.
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I am currently actively interested in new opportunities due to changing circumstances with my current role. I’ve therefore uploaded a current curriculum vitae to this site .
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I am currently actively interested in new opportunities due to changing circumstances with my current role. I’ve therefore uploaded a current curriculum vitae to this site .
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Kyle Hailey has started putting together a much needed Oracle wait event reference. You can access it here . By the way, Oracle documentation also has a wait event reference section, it has more events, but it’s less detailed…
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Kyle Hailey has started putting together a much needed Oracle wait event reference. You can access it here . By the way, Oracle documentation also has a wait event reference section, it has more events, but it’s less detailed…
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Sometimes the interfaces you need just aren’t well documented, but thanks to the internets , some websearches , and a useful dictionary , you can often decipher random web documentation jargon to help you produce useful code . You can hire James and his team at m9rx corporation . You can follow James on Mastodon for more frequent updates and other random thoughts. You can follow James on Twitter for more freque..
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Sometimes the interfaces you need just aren’t well documented, but thanks to the internets , some websearches , and a useful dictionary , you can often decipher random web documentation jargon to help you produce useful code . You can hire James and his team at m9rx corporation . You can follow James on Mastodon for more frequent updates and other random thoughts. You can follow James on Twitter for more freque..
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I've updated the browser plugin to finally support full online multiplayer! Go try it! I think the plugin is now stable enough that I am promoting it as the officially recommended method of playing the game. :) Of course, there are still some problems. Namely, in Internet Explorer the mouse control doesn't work. Testing so far has shown Firefox 3 and Chrome (on Windows) handle the game very well. So give it a whirl, and please post an..
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Bugs are fun but this time I want to talk about win. Recently I finished work on a recursive descent expression evaluator in the Bandcamp code. (That’s a mouthful and I enjoy slinging that whenever I can—it’s up there with binary space partitions.) An expression evaluator is something that can take a sequence of characters […]
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A scientist builds in order to learn, an engineer learns in order to build.” (Fred Brooks) Java Introduction Tutorials Java Basic Programs: 5 Simple Examples Java Hello World - How to Run Java 9 Tutorials Java 9 Strings Java 8 Tutorials How to sort a Set in Java example Java 8 parallel streams API Java regex by example: strings Java Best Practice Prefer two-element enum types to boolean parameters Recipe f....
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CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It was a local privilege-escalation vulnerability on all x86_64 kernels prior to v2.6.22.7. It’s very simple to understand with a little bit of background, and the exploit is super-simple, but it’s still more interesting than Yet Another NULL Pointer Dereference. Plus, it was the first kernel bug I wrote an exploit for, which was fun.
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CVE-2007-4573 is two years old at this point, but it remains one of my favorite vulnerabilities. It was a local privilege-escalation vulnerability on all x86_64 kernels prior to v2.6.22.7. It’s very simple to understand with a little bit of background, and the exploit is super-simple, but it’s still more interesting than Yet Another NULL Pointer Dereference. Plus, it was the first kernel bug I wrote an exploit for, which was fun.
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Here we’ll look at an example of a simple light. We draw a static ball in the middle that will serve us as a background. Four small balls will move around the big one and represent different lights. These small balls are not actually lights, but are there to show the color and position of the light.
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Not dead... just really busy. Been doing a lot of network debugging and optimization; I added zlib compression to the network packets, which cut down network bandwidth by about a fourth. I also streamlined a few network issues, added a simple network performance logger, and implemented simple client-side interpolation; everything moves much smoother now, even if there is a slight delay. It's basically a fact of life these days in online gam..
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