I am a student and on an internship currently. I was developing an Apache module, that will be available for my company's clients to download and use.
I have completed the module now. Now I want to know what are the best practices regarding the deployment of module.
Should I provide binaries of the module or source files ? What can I assume about the technical competence of the webmasters who usually maintain the servers ?
Additionally the biggest problem that I see is that different OS distros usually mess with the Apache directory structure, so it is very difficult to even provide a standard guide that will help user's to install the module.
Does anyone has had experience with this kind of a situation ? What are the usual practices of software distribution/deployment/installation ?
Related
We currently need a portal solution. One of our service providers has already suggested that we develop the portal in Apache OFBiz.
Now I would like to know if Apache OFBiz is still state of the art or if it is already on the way down.
Or is there another technology we should consider.
Best Regards,
Foerstar
Apache OFBiz is a solid Open Source framework that is actively maintained and updated by its community that is part of the Apache Software Foundation.
While the OFBiz architecture has been outlined years ago, it is still a modern framework that incorporates several pragmatic patterns and is designed to be flexible and extendable. Moreover various components and technologies have been kept up to date or replaced with newer ones over the years.
It is impossible to tell you if OFBiz is a good fit for your portal solution because I don't know your specific needs but my recommendation is to at least consider it especially if in your portal you will publish content related to products or other business entities: if this is the case then the OFBiz universal data model will be a valuable resource that will help you to achieve your goals efficiently and with high quality.
I have webspace and I was thinking of setting up a git repository on it.
If I am developing software and I want to host a repository (CVS, SVN, git, etc) online, is there any reason not to use a standard web hosting provider (GoDaddy, etc) to do this?
I'm thinking in terms of security, reliability, etc.
One reason for not using a standard-company is that usually shell-access is needed to setup a Version Control System (VCS). Many providers don't give shell access on normal webspaces.
When you are developing open-source software I'd recommend hosting at SourceForge, github, Google Code or similar providers, as your code is public there, you will get an issue tracker and several other tools that may help you. On github for example adding more developers to your project is very easy.
When you are developing closed-source software you still can use github, this gives you the same advantages as mentioned above, but of course it costs you a few bucks a month. Open-Source projects are free.
So while there is no real reason to not use standard hosting providers there are good reasons to use a company dedicated on hosting code.
As you asked especially for security: github (I use it as an example, as I host my code there as well) gives you a full list of information of what they do to ensure your code is safe.
My research and development environment calls for a heavily customised TRAC with a corresponding subversion repository and a binary file store (e.g. WebDAV).
I have my eye on at least 10 plugins that I would like to use (from integration with time tracking software, to specialist mathematics/code rendering). I'd also like to write my own plugins.
I am looking for a commercial host that will allow me to self-manage my TRAC plugins. I've looked into (and contacted) a few of the commercial providers from the TRAC Commercial Services list, including:
Project Locker
Repository Hosting
SVN Repository
Project Locker have described that they do a code review of plugin requests and handle it on their end (unspecified time period). Repository Hosting have said that they "will probably not add support for that in the near future". SVN Repository have said "you won't be able to install any new plugins" and have suggested one of their VPS accounts instead.
Short of managing my own VPS or dedicated server, does anybody know of a commercial SVN/TRAC host who allows paying customers to install their own plugins? I would have thought a chroot environment would have made this a no-brainer!
(Note: this was originally posted on programmers but was down-voted and I was advised to move it here. Quoting from their FAQ: implementation issues or programming tools (ask on Stack Overflow instead))
You'll probably find a hard time finding what you're looking for because as Craig mentioned in his comment, the concept of commercial hosting services typically revolves around limiting a customer's ability to customize. Keeping things relatively uniform means that the hosting company can manage systems and deploy automated updates much more easily and won't have to worry about their scripts breaking because of something odd that one customer installed or re-configured.
If you want to be able to install and configure plugins at will, I highly recommend going the VPS route and managing the server yourself. It's easier than you might expect (I was thrown into this situation and was pleasantly surprised). You can start with something like the Bitnami Trac stack, which is a virtual machine image that has a Linux OS plus Trac and all of the support tools (database, webserver, etc) set up and ready to go. If you use that as a starting point, all you should have to do is customize your Trac settings and install your plugins.
If you really don't want to have anything to do with the management aspect, remember that you can always go the VPS route and contract out the administration work separately. It might be easier if the hosting provider and the system admin come from the same company, but it's not a requirement. Given the flexibility and customization that you need, this might be a more realistic option.
I am developing a Remote Software Provisioning system that should be able to handle all deployment, installation, un-installation and upgrades of software components. Software can be in any language (java, .net, c/c++ etc) and target side can be PC, embedded systems and smart phones.
I have found Apache ACE as good candidate for developing this system.
I want to know if there is any advantage/necessity of using OSGi at target side as Apache ACE can do software provisioning to non-OSGi targets as well.
Having a modular framework like OSGi at the client side is a huge advantage when doing remote management, because it gives you much insight into what's happening inside - installed bundles, dependencies, states of the bundles, available services etc. This helps a lot when you have to solve a problem remotely. Another advantage is that OSGi basically forces programmers to develop proper modular and dynamic systems, which makes (remote) updating much easier.
So, if you have to decide now what language and framework to use for the client side, I strongly recommend OSGi for the embedded and mobile clients. For the PCs (I guess you mean desktop PCs?) this is probably not the best choice - it depends a lot what you want to achieve there. If you want to install MS Office remotely OSGi won't bring you forward ;)
However, if you already have existing programs at the client side and are discussing whether to convert them to OSGi, I would recommend to investigate some time first to see whether they can be converted easily. Some software packages could give you a lot of trouble converting to OSGi, not because OSGi is complex, but because the program itself is not modular and has a lot of assumptions about the static nature of the environment (e.g. nothing ever disappears, parts of the system never get updated etc.). The irony in the matter is that these are exactly the programs which will give you most trouble later anyway no matter which remote provisioning system you chose.
If you have OSGi at some of the targets be sure to use a remote provisioning system which gives you access to the full OSGi functionality and not only the most basic and simple install and update functions. I haven't yet used Apache ACE, but I have experience with another provisioning system - mPower Remote Manager. Here are some snapshots from the documentation which can give you a feeling what is possible with OSGi as a base - you can draw your own conclusions whether it will be useful for your case or not.
I've given some examples in the other question you asked:
What are the non-osgi targets with which Apache ACE can work
You can write your own management agent that talks to the ACE server and installs artifacts. There actually are a couple of places where you could hook in your own code and protocol. Is there a concrete language/environment you're thinking of using, or are you just exploring the possibilities right now?
Well, the advantages of OSGi haven't changed, so for that I can refer you to the standard page.
To be a bit more constructive, I'll read the question as 'Should I bother converting my application to OSGi, as it is not necessary for ACE?'
I think that depends on what 'kind' of updating mechanism you're after. If you have a monolithical application (at least from the provisioning perspective) which you deploy and update only as a whole (Like an iOS app) then there isn't much to gain for provisioning purposes by using OSGi.
For the rest I can tell you the same as I tell anybody else: Converting an application to OSGi isn't hard, but modularizing code can be a nightmare, but something you'll need to face at some point, OSGi or not. If your code is modularized already, using OSGi should be a piece of cake.
I am looking for a tool capable of generating multiple Xmpp connections to load-test a XMPP server with a secure connection, especially starttls.
For a xmpp plain text authentication I had used jab_simul(followed this tutorial) and tsung both with success.
But I was unable to use the tolls above for the starttls,I peeked into the code of both tools and tried different configurations of the tools.
Another option I am pondering is using a xmpp library like eXmpp and make a specific load-testing tool myself with, instead of altering jab_simul (C software with comments in language i do not understand) or altering tsung(all purpose load-testing tool, so lots of place where you can go wrong).
short-story - I am looking for a tool or advice to stress-testing/load-testing a xmpp server.
We are facing exactly the same challenge right now. After deep consideration we found out that only especially build software can deliver the load we want to test. (Remember, you can configure ejabberd to something very specific :-)
For that we developed a small library called xmpp_talker https://github.com/burinov/xmpp_talker (Apache Licence) which is a kind of xmpp client made as a gen_server. I find it is a very nice starting point to build any kind of load simulation software. There is also echo_worker example included. So, you have good base to start. At the moment xmpp_talker is suited for exmpp 0.9.7. As far as I know in a few days will be out version 1.0.0. (or 0.9.9?) There are many bug fixes (trust me you don't want to know about them). On monday I will release xmpp_talker for exmpp 0.9.8 with proper service interruption handling.
In case you deside to go the same way xmpp_talker could be useful for you.
Added: Here is also great article that is realted to the topic: https://support.process-one.net/doc/display/EXMPP/Scalable+XMPP+bots+with+erlang+and+exmpp
There's also the recently started XMPP benchmarking project called xmppench which aims to be a high-performance benchmarking tool simulating some reasonable use cases of XMPP servers. It's written in C++, based on Swiften and boost.