| Virgo Server for Apache Tomcat - Production Usage [message #899238] |
Tue, 31 July 2012 04:08  |
Eclipse User |
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Hello,
We are evaluating Virgo for our production usage. As a technology stack, we are very much comfortable with Virgo and its features. However, following are the concerns before moving to production.
1. How reliable is the Virgo Server for Apache Tomcat
2. Is there any commercial support available to take care of the production issues
3. Any reference customer apart from the CME and Infor, where Virgo Server for Apache Tomcat is used in Production
4. Any benchmark on Virgo Server for Apache Tomcat used in production
5. As such OSGi solution is not completely taken by the enterprise customer, how Virgo Server for Apache Tomcat different from others
Please provide information on the above points, will be really helpful.
Thanks in Advance.
Parani
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| Re: Virgo Server for Apache Tomcat - Production Usage [message #900011 is a reply to message #899238] |
Fri, 03 August 2012 08:43  |
| Eclipse User |
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If it helps, I can also share my production experience. We're running central identity and web session management for most of our company's web applications in Virgo Tomcat Server 3.0. This means it handles a database of >800k accounts in total and >60k unique users logging in daily, and provides near real-time responses (each request for any of our web applications' pages triggers a background request to Virgo) with absolutely no problems.
Considering all of this amounts to 100s (1000s in peak hours) of requests per second and that we had a similar system running on standalone Tomcat before with similar results, I would say you're pretty safe assuming that Virgo Tomcat performance and stability equals that of the stock Tomcat, which should be enough of an assurance.
I must admit I was a bit nervous about both performance and stability, as Virgo does wrap Tomcat into an additional layer of OSGi-induced complexity, but it turned out to be unnecessary. The only incident, after 4 months of uptime for the Virgo process, was actually caused by a system problem (that dreaded leap second addition on July 1st that triggered a bug in Linux kernel/libc and disabled the JVM), and since that was fixed, again, it's running smoothly as before.
So, from the aspect of performance/stability, for me this battle-proves it beyond any doubt.
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| Re: Virgo Server for Apache Tomcat - Production Usage [message #900045 is a reply to message #899238] |
Fri, 03 August 2012 11:37 |
| Eclipse User |
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No, there was no need in our case so we didn't look into it. But, we do have local VMWare support contracts for our ESX clusters and judging from that experience, and how helpful Glyn and Chris are with the community, my feeling is you should be safe with contracting that company for support. Maybe this sounds like a commercial endorsement, but this really is strictly from my experience so far - I have no association with VMWare other than using their products.
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