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• Berkeley DB Java Edition High Availability/Replication Whitepaper

  - by charles.lamb

  My colleague Sam Haradhvala has written a great whitepaper on BDB JE HA/Replication. It takes a high level look at what JE/HA is, when you might use it, and the key architectural tradeoffs you might consider.

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• Webinar: NoSQL - Data Center Centric Application Enablement

  - by Charles Lamb

  NoSQL - Data Center Centric Application Enablement AUGUST 6 WEBINAR About the Webinar The growth of Datacenter infrastructure is trending out of bounds, along with the pace in user activity and data generation in this digital era. However, the nature of the typical application deployment within the data center is changing to…

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• Berkeley DB Java Edition High Availability Performance Whitepaper

  - by charles.lamb

  Over the past few months we've been working on measuring the impact of HA on JE performance when running on large configurations. The results are documented in a whitepaper that I wrote.

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• Berkeley DB Java Edition 4.0.103 Available

  - by charles.lamb

  We'd like to let you know that JE 4.0.103 is now at http://www.oracle.com/technology/software/products/berkeley-db/je/index.html. The patch release contains both small features and bug fixes, many of which were prompted by feedback on this forum. Some items to note: New CacheMode values for more control over cache policies, and new…

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• Join Domain and Dos App

  - by Austin Lamb

  ok, So First off yes i have read all the related topics and those fixs are either out of date or dont work. i am running ubuntu 12.04 and i would like to add it to the win2008 server network, after i get that done i would like to mount the F:\ drive of the server somewhere on my linux machine where it can be identified as Drive F:\…

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• Oracle NoSQL Database Exceeds 1 Million Mixed YCSB Ops/Sec

  - by Charles Lamb

  We ran a set of YCSB performance tests on Oracle NoSQL Database using SSD cards and Intel Xeon E5-2690 CPUs with the goal of achieving 1M mixed ops/sec on a 95% read / 5% update workload. We used the standard YCSB parameters: 13 byte keys and 1KB data size (1,102 bytes after serialization). The maximum database size was 2 billion…

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• Oracle NoSQL Database Using FusionIO ioDrive2

  - by Charles Lamb

  We ran some benchmarks using FusionIO ioDrive2 SSD drives and Oracle NoSQL Database. FusionIO has published a whitepaper with the results of the benchmarks. "Results of testing showed that using an ioDrive2 for data delivered nearly 30 times more operations per second than a 300GB 10k SAS disk on a 90 percent read and…

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• Encoding arbitrary data into numbers?

  - by Pekka

  Is there a common method to encode and decode arbitrary data so the encoded end result consists of numbers only - like base64_encode but without the letters? Fictitious example: $encoded = numbers_encode("Mary had a little lamb"); echo $encoded; // outputs e.g. 122384337422394237423 (fictitious result) $decoded =…

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• Oracle NoSQL Database: Cleaner Performance

  - by Charles Lamb

  In an earlier post I noted that Berkeley DB Java Edition cleaner performance had improved significantly in release 5.x. From an Oracle NoSQL Database point of view, this is important because Berkeley DB Java Edition is the core storage engine for Oracle NoSQL Database. Many contemporary NoSQL Databases utilize log…

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• Passoker Online Betting Use of Oracle NoSQL Database

  - by Charles Lamb

  Here's an Oracle NoSQL Database customer success story for Passoker, an online betting house. http://www.oracle.com/us/corporate/customers/customersearch/passoker-1-nosql-ss-1863507.html There are a lot of great points made in the Solutions section, but as a developer the one I like the most is this one: …

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• Blueprints API for Oracle NoSQL Database

  - by Charles Lamb

  Here's an implementation of the Blueprints API for Oracle NoSQL Database. https://github.com/dwmclary/blueprints-oracle-nosqldb Blueprints is a collection of interfaces, implementations, ouplementations, and test suites for the property graph data model. Blueprints is analogous to the JDBC, but for…

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• Passing data between android ListActivities in Java

  - by Will Janes

  I am new to Android! I am having a problem getting this code to work... Basically I Go from one list activity to another and pass the text from a list item through the intent of the activity to the new list view, then retrieve that text in the new list activity and then preform a http request based on value of…

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• Does lighter wallpaper consumes lesser power than a Darker one

  - by Lamb

  My VAIO advised me to switch to a White Background, to reduce power consumption. But it seems contradictory to common logic. Its like saying a brighter Torch consuming less than a dimmer one. Common Logic says that, Screen is BLACK when not using any POWER, so displaying black color should not consume any…

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• Daily tech links for .net and related technologies - Apr 26-28, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - Apr 26-28, 2010 Web Development MVC: Unit Testing Action Filters - Donn ASP.NET MVC 2: Ninja Black Belt Tips - Scott Hanselman Turn on Compile-time View Checking for ASP.NET MVC Projects in TFS Build 2010 - Jim Lamb Web Design List of 25+ New tags…

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• Embedded file system and sqlite

  - by Jeff Lamb

  I'm working on an embedded project that has no file system, and our kludge of a database has ballooned in functionality. It's now so inefficient, we can't stand it any longer. I'm trying to figure out if there's built-in support for a flat file system in SQLite. I've dug around http://sqlite.org…

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• multiple subpackages for phpdoc

  - by Eric Lamb

  Is it possible to have a file belong to multiple subpackages? For example: /** * Name * * Desc * * @package Core * @subpackage Sub1 * @subpackage Sub2 */ Thanks!

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• Simple javascript problem in ie6 and ie7

  - by Jeff Lamb

  I have a very simple function that takes a list of comma separated (x,y) points and imports them into a graph. I have FF, Chrome and IE8 installed. I use IETester to test for IE6 and IE7. // Import Data this.Import = function(data) { alert("Data in: "+data); var d; // Make sure the…

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• Simple javascript string problem in ie6 and ie7

  - by Jeff Lamb

  I have a very simple function that takes a list of comma separated (x,y) points and imports them into a graph. I have FF, Chrome and IE8 installed. I use IETester to test for IE6 and IE7. // Import Data this.Import = function(data) { alert("Data in: "+data); var d; // Make sure the…

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• Xpath fails if an element has a a xmlns attribute

  - by Callum Lamb

  Im trying to use xml to parse a .COLLADA file. The problem is I can't seem to use xpath() to access elements if the root tag has a xmlns attribute. For example this works: $string = <<<TEST <?xml version="1.0" encoding="utf-8"?> <COLLADA version="1.4.1"> …

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• Google Analytics Widget Tracking

  - by Kevin Lamb

  Hello, I have a form that is generated on a customer's website (lets say customer.com) with javascript that a user fills out and it sends to my site (app.com). I would like to be able to provide information to the customer such as how effective their AdWords campaign was and what…

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• How to unit test business rules?

  - by Robert Lamb

  I need a unit test to make sure I am accumulating vacation hours properly. But vacation hours accumulate according to a business rule, if the rule changes, then the unit test breaks. Is this acceptable? Should I expose the rule through a method and then call that method from both…

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• JFLAP Turing Machine shortcut problem

  - by Robert Lamb

  In JFLAP (http://jflap.org), there are some shortcuts for Turing machine transitions. One of these shortcuts allows you to transition as long as the current tape symbol isn't the indicated symbol. For example, the transition !g,x;R basically says "Take this transition if the…

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• Version Assemblies with TFS 2010 Continuous Integration

  - by Steve Michelotti

  When I first heard that TFS 2010 had moved to Workflow Foundation for Team Build, I was *extremely* skeptical. I’ve loved MSBuild and didn’t quite understand the reasons for this change. In fact, given that I’ve been exclusively using Cruise Control for Continuous…

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• Getit serves up local search in India with Java ME tech

  - by hinkmond

  Did you ever wonder where to get a good lamb vindaloo while you are visiting in Mumbai? Well, you need to get Getit then. See: Getit gets it on Java ME Here's a quote: Getit, the company which provides local search facility and free classifieds services…

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• Sort specific items of an array first

  - by Matt Huggins

  I have a ruby array that looks something like this: my_array = ['mushroom', 'beef', 'fish', 'chicken', 'tofu', 'lamb'] I want to sort the array so that 'chicken' and 'beef' are the first two items, then the remaining items are sorted alphabetically. How would…

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