2020-07-01 09:11
The 25 greatest Java apps ever written
Love it or hate it, few can deny the success of Java. Whether it was the first language you learned at college or the language you have carved your… Read More
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Subversion blog from WANdisco, with tutorials, webinars and articles from SVN experts. Everything you need to know about the popular version control system.
2020-01-07 12:07
Scaling Threads on Linux – Per Account or Per Application
Failures such as:
java.lang.OutOfMemoryError: unable to create new native thread
can drive you to do much googling an… Read More
2019-12-13 09:12
Unicode has a variety of symbols, some of them are very exotic. For example, there are Cyrillic glyphs ‘Multiocular O’ ꙮ, ‘Monocular O’ Ꙩ, ‘Binocu… Read More
2019-11-04 11:45
Have you thought about setting Hellvetica as your primary IDE font? https://hellveticafont.com
hint: don’t do this Read More
2019-09-10 15:52
“END-TO-END Arguments in System Design” was presented in 1981 by Saltzer, Reed and Clark [1]. Since then the thoughts around the principle have expanded but for this piece we wil… Read More
2019-07-22 16:05
In the previous blog entry ‘Time-out-of-joint’ I wrote about various problems that can happen when nuances in time handling are not considered. Somebody may think: “Well, t… Read More
2019-04-23 08:38
If you write code for a living, or if you’re curious about what the problem was with the Boeing 737-MAX, you should read this article – it’s kept high level with plenty of… Read More
2019-04-15 14:27
Interesting article on NVM (Non-Volatile Memory) – this is non-volatile RAM you can plug into a memory DIMM. It is about 1000 times faster than an SSD and byte addressable, also the e… Read More
2019-01-25 14:46
Here at WANdisco we continue to challenge what is thought of as being possible and how companies structure and interact with their data. However overcoming these challenges and developing gr… Read More
2018-11-28 14:33
I will start by saying “Happy 10th Birthday Gerrit!”
I have just spent a wonderful week in San Francisco for this years Gerrit Conference. It just happened to also be the 10th… Read More
2018-11-06 13:10
A previous post discussed FLP, a theoretical result that distributed consensus is impossible with one faulty process. This seems an arcane theoretical result that does not impact the decisio… Read More
2018-10-30 10:23
Some time ago I came across a very strange issue – tests that worked at one host started failing an another host with NullPointerException. Hosts were very identical, and after debuggi… Read More
2018-10-05 14:52
October is upon us. That means of course various celebrations during which many many litres of beer will be consumed are starting or already in full force around the world.
And while I&rsquo&hell…Read More
2018-08-30 15:38
Another article from the series of notes to self which others might find useful
Recently I was trying to run some complex build scripts that produce our unified installers inside a docker c… Read More
2018-08-23 08:34
“FLP” stands for Fischer, Lynch and Paterson and refers to a famous paper by the aforementioned authors: “Impossibility of Distributed Consensus with One Faulty Process&rd&hell…Read More
2018-08-20 11:03
With Anton’s recent posts on date and time issues developers encounter, “Time Out of Joint” and “More on time and timezones” I thought it would be worth mention… Read More
2018-08-16 16:19
In the previous blog entry I wrote about various problems that can happen when nuances in time handling are not considered. Somebody may think: “Well, this all happens so rarely &ndash&hell…Read More
2018-08-03 09:00
Timing issues are not studied in universities. While you study computer science, you somehow think about time in terms of comparing execution time of different algorithms, but time itself do… Read More
2018-07-05 15:54
Belfast Fusion Core team release lunch to celebrate Fusion 2.12 going Live!… Read More
2018-07-05 14:27
This is more of a note to self about a somewhat surprising behaviour but just in case someone else finds it useful I thought I might as well put it out there.
I stumbled onto a puzzling situ… Read More
2018-07-03 13:17
Building on the humongous effort so far to improve our development pipeline, as described by Gordon in one of the previous posts, we’ve just been introducing some more tweaks to furthe… Read More
2018-06-19 08:34
There is an interesting discussion here “PostgreSQL’s fsync() surprise”. The PostgreSQL developers got some nasty surprises on how Linux fsync works, which means they could… Read More
2018-06-12 13:23
Deadlocks happen when two or more threads are blocked forever because each has acquired a resource and waits for another resource which is already taken by another thread. They are usually n… Read More
2018-05-21 13:39
In supporting our active-active Git replication product underneath Gerrit I read the public Gerrit discussions daily. On May 14th
there was a very interesting discussion up there about how… Read More
2018-04-30 13:02
Most sorting algorithms, or at least their names, are widely known – quicksort, mergesort, etc. Some companies even like to discuss their nuances at their job interviews.
However, ther… Read More
2018-04-26 14:00
I recently found myself reflecting on how our continuous integration builds have changed, and was amazed to think how a series of seemingly small tweaks and improvements have accumulated, ov… Read More
2018-04-26 11:48
Six years ago I had a conversation with an old university friend. We had found each other again via social media. It was great to catch up after all those years. During that cons… Read More
2018-04-26 11:44
James O Coplien talk at GOTO 2017 is full of interesting and controversial ideas and comments. His book “Advanced C++ Programming Styles and Idioms” from 1991 was a seminal… Read More
2018-04-18 10:12
Joining WD I wasn’t sure what to expect and arriving at the door I was a bundle of nerves.
After 6 months those first day nerves are long gone. In fact they disappeared almost immedia… Read More
2018-03-14 11:44
There are some pretty cool bands (Beck, Orbital, Manic Street Preachers) playing Belfast for the Radio 6 The Biggest Weekend event. Some of the WANDisco@Belfast team will be there too &hell&hell…Read More
2018-03-14 11:44
The XFS filesystem has been around for nearly 20 years. It was first introduced bySilicon Graphics, (RIP) for their Unix based operating system IRIX. It was designed to scale to systems with… Read More
2018-03-14 11:43
This is a real nice set of lecture notes on distributed systems covering Consensus, Logical Clocks, Paxos, FLP, failure detectors, Software Transactional Memory etc by James Aspnes.… Read More
2018-03-14 11:42
I tripped over this video on the Slab allocator:
https://www.youtube.com/watch?v=UQVd9mZr-jI&t=840s
This is the original paper:
http://www.usenix.org/publications/library/proceedings/bos… Read More
2016-04-22 05:50
弊社の初めての“クラウド”についてのWebinar（Making Hybrid Cloud a RealityA… Read More
2015-06-15 16:38
As part of our participation in the open source SCM community, WANdisco provides up-to-date binary downloads for Git and Subversion for all major platforms. We now have the latest Git… Read More
2015-06-09 15:05
The Data Science Association just published this infographic showing market share for a variety of different tools and technologies that form part of the Big Data ecosystem. The data w… Read More
2015-06-08 09:00
This blog by Cheryle Custer, Director Strategic Alliance Marketing Hortonworks, has been republished with the author’s permission.
It was just a little over 100 days ago that… Read More
2015-06-04 22:52
This blog by Shaun Connolly, Hortonworks VP of Corporate Strategy, has been republished with the author’s permission.
As we approach Hadoop Summit in San Jose next week, the debate con… Read More
2015-06-03 13:56
Hortonworks, a WANdisco partner and another member of the Open Data Platform, recently published a list of best practices for Hadoop infrastructure management. One of the top recommend… Read More
2006-06-07 11:16
You may be aware of gerrit, the web based code review system. Our Director of Product Marketing, Randy Defauw, has a number of good reasons for adopting it as part of your development proces… Read More
2006-06-07 11:16
Following on from the release of SmartSVN 8.5, we wanted to give you a bit more detail about the main big change in SmartSVN 8.5, so here’s Branko Čibej, our Director of Subversio… Read More
2006-06-07 11:16
Continuing on from Top Challenges of the Git Enterprise Architect #2: Access Control I’ll next talk about Git’s ever growing repos and some challenges presented. Git stores… Read More
2006-06-07 11:16
We’re happy to announce the release of SmartSVN 8.5, the graphical Subversion (SVN) client for Mac, Windows and Linux. SmartSVN 8.5 is available for download from our website here. Alo… Read More
2006-06-07 11:16
Hadoop is now clearly gaining momentum. We are seeing more and more customers attempting to deploy enterprise grade applications. Data protection, governance, performance and availability ar… Read More
2006-06-07 11:16
What’s New in Subversion 1.9 (クリックでリプレイ)と題したWebinarの概要で{… Read More
2006-06-07 11:16
Subversionの最新版には多くの新機能とバグ修正が含まれて… Read More
2006-06-07 11:16
You know a technology trend has become fully mainstream when you see it written up in the Wall Street Journal. So it goes with DevOps, as this recent article shows. DevOps and continuo… Read More
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