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I recently encountered the following error in Sonar 3.5 [ERROR] Failed to execute goal org.codehaus.mojo:sonar-maven-plugin:2.0:sonar (default-cli) on project smartfx: Can not execute Sonar: Missing column:period in DB.ALERTS -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:sonar-maven-plugin:2.0:sonar (default-cli) on project myproject: Can not execute Sonar at org.apache.mave..
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Something I found in a note almost lost in the sea that is the host of half-baked ideas begging to be honed to a comprehensible piece: Permalink.
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I have devoted a lot of time to thinking about this, curious as to my motivations behind writing. In the past I said I wrote because I wanted to share my knowledge with others. How noble of me, I suppose. At other times, simply because I love the writer’s craft. This was closer to the real reason, but neither, while true on some level, accurately represented the actual drive that has pushed me to come home after a long day and sit down to w..
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Sometimes distractions are good. At the end of a long day spent working on homework, for example, being productive is the last thing I want to do: I would much rather relax and watch a movie than write. Other days, though, during the summer or over break, those are the days I should spend in Instapaper, reading, and in Drafts, writing. But more often than not, those two different types of days that for all intents and purposes should remain..
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Marco Arment and MG Siegler on potential reader loss due to Google Reader’s impending demise: “I’m a little worried about this possibility. Short-term, it will definitely be a problem. Long-term is the question.” Permalink.
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While one session is doing a “delete then insert”, and another session doing an “update”, the update waits until the “delete then insert” is finished. But does the “update” then affect the “inserted” row or the “deleted” row? Create a table foo(id) and insert one row with id=5 into it. Then: Session A
Session B | START TRANSACTION START TRANSACTION | DELETE FROM..
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I recently encountered an issue with cloning a Mercurial repository where it would fail with an obtuse error stating that “[command returned code 255 Mon Mar 25 11:39:55 2013]”. My initial Googling implied that this was caused by a server timeout but the problem persisted even after increasing the timeout on our Apache web server. The clone was always failing on one particular file - a 600Mb binary. (Don’t ask…)
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In the past few months I have written many essays necessitating the use of citations as a manner through which to lend credence to some datum or another. As you may have surmised from this article’s title though, I believe the current model for determining credible citations to be broken. Take, for example, XKCD comic #976, Citogenesis . In this comic, Randal Munroe once again displays brilliance by showing where citations come from . ..
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A friend said this to me today: it’s really odd, why do fans of dynamic languages often have this cult-like approach? It’s an interesting thought. I know many people who love dynamic typing and reject static typing without knowing much about it. (Of course there are many people who love dynamic typing but who do know lots about static typing.) It got me to thinking, I reckon if you only know X and know nothing about non-X, you mig..
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A smorgasbord of anecdotes carefully compiled just for you, dear reader. This is #2 in a series of three posts which were originally one, before I decided I just had too dang much to say. OpenStack I spent a few weeks at work building a fully operational death star OpenStack cluster. What does that mean? Basically, we have our own little private version of Amazon Web Services. We can create virtual machines, virtual hard drives, even vi..
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Virya Cookie Monster is a Virya Software project intended to help Joomla! sites achieve compliance with the European PECR (otherwise known in the UK as 'the cookie law'). It presents either a banner of a lightbox, and can optionally give the visiting user the option to reject all cookies. The module uses Joomla!s ACL system to help prevent cookies from being set. The extension also includes a script that checks installed extensions again..
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Bookmarks Reloaded is a rewrite of the popular Joomla 1.5 extension TEG Bookmarks adding support for Joomla! 2.5.x. I didn't do the initial port from J!1.5 to J!2.5.x due to time constraints, but have been maintaining the codebase ever since. In the near future I'll also be looking at porting Bookmarks Reloaded to Joomla! 3.x.
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Update May 26, 2014 The concepts in this article are still true, but I’ve recorded a screencast showing how to use ember without ember data using ember-cli and the latest version of Ember. It goes beyond the contents of this article, showing how to create an adapter, store and even your own identity map. Check it out ! Ember Data is a persistence layer for Ember.Js . Unlike Ember, which currently has a candidate for a 1.0 releas..
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I do a lot of my work in a terminal. For the unfamiliar, this might seem strange, however once you’re comfortable with your shell, this is the best place to be. I don’t restrict myself to it though. I often want to spawn a file manager, or a graphical text editor. When I run nautilus, I usually see something like this: james@computer:~/some/awesome/directory$ nautilus . Initializing nautilus-open-terminal extension Shutting down..
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I do a lot of my work in a terminal. For the unfamiliar, this might seem strange, however once you’re comfortable with your shell, this is the best place to be. I don’t restrict myself to it though. I often want to spawn a file manager, or a graphical text editor. When I run nautilus, I usually see something like this: james@computer:~/some/awesome/directory$ nautilus . Initializing nautilus-open-terminal extension Shutting down..
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Speaking of New Google , Marco talks about what it could mean for the future of Android. Particularly interesting to me were his final thoughts at the end of the piece: “Old Google made Android. New Google is much more strategic, cold, and focused. Let’s see what they do to it.” Permalink.
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James Whittaker on Google’s metamorphosis from a tech company to the machine that churned out Google+: “The Google I was passionate about was a technology company that empowered its employees to innovate. The Google I left was an advertising company with a single corporate-mandated focus.” It’s too bad, too: Google has given us some of the best web services since the dawn of the internet. For the past decade or so, Google has remain..
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As I mentioned in my previous post, I started experimenting with object pooling. To start off with I didn’t worry about performance at all - I just wanted to have a functional way to use entities without repeatedly creating or destroying them. It took a couple of days, but I finally have a working version that (so far) does what I need.
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Soylent’s story got picked up by The Verge the other day. Great to see it getting some traction. Permalink.
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John Siracusa explaining Apple’s aversion to outsourcing: “Like a lover who’s been betrayed one too many times, Apple has hardened its corporate heart against any form of true partnership. If it’s important, Apple wants to own and control it. When Apple does work with others, it insists on having the upper hand. iOS developers serve at the pleasure of Apple. Manufacturing partners must fight for the privilege of building Apple’s product..
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Marco Arment in Your favorite Thursday sandwich , where he argued against Om Malik’s decision not to use Google Keep : Permalink.
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Couple of days ago there was an interesting post on the Dire State of WordPress , talking about the issues developers have when working with this hugely popular content management system: When you learn PHP from WordPress as I (and probably many other people) did, you just assume that all the idiosyncrasies and illogicalities are par for the course when building a CMS-driven site. It’s taken me several years to realise that it doesn’....
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Google Glass is coming this year, a wearable display that can keep you connected at all the times and supply information and instructions when you need them. And it can record video or take pictures of whatever you see, when you want it to. The privacy scare Much of the Glass marketing focuses on the camera aspect, as does the criticism and fearmongering around it. Some feel that the device would bring about an era of ubiquitous sur....
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Google Glass is coming this year, a wearable display that can keep you connected at all the times and supply information and instructions when you need them. And it can record video or take pictures of whatever you see, when you want it to. The privacy scare Much of the Glass marketing focuses on the camera aspect, as does the criticism and fearmongering around it. Some feel that the device would bring about an era of ubiquitous sur....
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Google Glass is coming this year, a wearable display that can keep you connected at all the times and supply information and instructions when you need them. And it can record video or take pictures of whatever you see, when you want it to. The privacy scare Much of the Glass marketing focuses on the camera aspect, as does the criticism and fearmongering around it. Some feel that the device would bring about an era of ubiquitous sur....
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Couple of days ago there was an interesting post on the Dire State of WordPress , talking about the issues developers have when working with this hugely popular content management system: When you learn PHP from WordPress as I (and probably many other people) did, you just assume that all the idiosyncrasies and illogicalities are par for the course when building a CMS-driven site. It’s taken me several years to realise that it doesn’....
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Couple of days ago there was an interesting post on the Dire State of WordPress , talking about the issues developers have when working with this hugely popular content management system: When you learn PHP from WordPress as I (and probably many other people) did, you just assume that all the idiosyncrasies and illogicalities are par for the course when building a CMS-driven site. It’s taken me several years to realise that it doesn’....
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Google Glass is coming this year, a wearable display that can keep you connected at all the times and supply information and instructions when you need them. And it can record video or take pictures of whatever you see, when you want it to. The privacy scare Much of the Glass marketing focuses on the camera aspect, as does the criticism and fearmongering around it. Some feel that the device would bring about an era of ubiquitous sur....
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Listing Exadata storage cells and their configuration info from V$CELL_CONFIG
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tanelpoder.com
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13 years ago
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eng
If you attended my Exadata hacking session today, you saw me using the cellver.sql script which lists some basic configuration info about the currently connected storage cells: SQL> @ exadata / cellver Show Exadata cell versions from V$CELL_CONFIG.... CELLNAME CELLSRV_VERSION FLASH_CACHE_MODE CPU_COUNT UPTIME KERNEL_VERSION MAKE_MODEL -------------------- -------------------- -------------------- ---------- -------------------- --....
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Listing Exadata storage cells and their configuration info from V$CELL_CONFIG
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tanelpoder.com
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13 years ago
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eng
If you attended my Exadata hacking session today, you saw me using the cellver.sql script which lists some basic configuration info about the currently connected storage cells: SQL> @ exadata / cellver Show Exadata cell versions from V$CELL_CONFIG.... CELLNAME CELLSRV_VERSION FLASH_CACHE_MODE CPU_COUNT UPTIME KERNEL_VERSION MAKE_MODEL -------------------- -------------------- -------------------- ---------- -------------------- --....
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A humorous observation by Ben Brooks that belies its actual profundity. I’ll leave it to you to read and discover it’s meaning though. Enjoy. Permalink.
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In this final post on the basic four methods of proof (but perhaps not our last post on proof methods), we consider the proof by induction. Proving Statements About All Natural Numbers Induction comes in many flavors, but the goal never changes. We use induction when we want to prove something is true about all natural numbers. These statements will look something like this: For all natural numbers n, $ 1 + 2 + \dots + n = n(n+1)/2$.
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In this final post on the basic four methods of proof (but perhaps not our last post on proof methods), we consider the proof by induction. Proving Statements About All Natural Numbers Induction comes in many flavors, but the goal never changes. We use induction when we want to prove something is true about all natural numbers. These statements will look something like this: For all natural numbers n, $ 1 + 2 + \dots + n = n(n+1)/2$.
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In this final post on the basic four methods of proof (but perhaps not our last post on proof methods), we consider the proof by induction. Proving Statements About All Natural Numbers Induction comes in many flavors, but the goal never changes. We use induction when we want to prove something is true about all natural numbers. These statements will look something like this: For all natural numbers n, $ 1 + 2 + \dots + n = n(n+1)/2$.
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After finishing the backlog of Critical Path episodes early yesterday afternoon, I scrolled down through my extensive list of podcasts until I came to The Talk Show With John Gruber . After my initial impressions of John Gruber’s latest work, I did not expect to particularly enjoy the next hour and a half. Like my previous encounters with John Gruber’s work, however, where it took a number of tries to discover the value of The Talk Sho..
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Since John Gruber abruptly announced that The Talk Show would move from 5by5 to the Mule Radio Syndicate a few months ago, many have speculated as to the reasons behind this sudden and unexpected split while both John and Dan remained, for the most part, silent. Twitter exploded with questions, theories, and, in some cases, anger; bloggers wrote long articles filled with speculation; Philip Elmer-DeWitt, writing for CNN Money, even entered ....
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PHPCredLocker is a password repository written in PHP. It supports up to 4 Megabit encryption and provides additional protection to credentials when in transit between the server and the client device. The system was written with security as the primary focus, and every aspect of the database is encrypted, from customer details to the credentials themselves. The system supports custom plugins and can push audit logs to remote systems. It..
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Random thoughts on JavaScript performance, garbage collection, and object pooling
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liza.io
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13 years ago
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eng
Let’s talk about garbage collection. I love JavaScript, but I wish it gave me more control over these things. I am on a quest to minimize garbage. Last week’s Sthlm.js meetup gave me some more insight, at least in regards to Chrome. Paul Lewis gave a talk that covered garbage collection in part. You can see it here .
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HTML Map 2 is a Virya Software project allowing the easy insertion and management of HTML Image Maps into a Joomla! site. The project initially supported Joomla 2.5 and my main involvement has been to rewrite it to work with Joomla 3.x, fixing any discovered bugs along the way.
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Alter session force parallel query doesn’t really force anything
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tanelpoder.com
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13 years ago
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eng
Jonathan Lewis has already written about this behavior from the angle of PARALLEL hints. I’m writing a similar article just because the word FORCE in the ALTER SESSION FORCE PARALLEL QUERY syntax. Force should mean that some behavior would always happen (when possible), right? Let’s test: SQL> CREATE TABLE t AS SELECT * FROM dba_objects; Table created. SQL> CREATE INDEX i ON t(owner); Index created. SQL> @ gts t Gather Table Statist..
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