search for: mccallister

Hello List! I got a small (50mbits or so) application layer ddos attack against a few name servers (thousands of IPs sending lots of bogus A record requests - weird) - one of the name servers was behind a shorewall firewall. That firewall was running a 2.6.18-194.11.1.el5 kernel and shorewall-4.4.11.1-1. I noticed that the shorewall host had ksoftirqd using 100% of the CPU during the

I see that Brian McCallister did some benchmarks recently, showing Apache, Mongrel, Jetty and TwisteWeb: http://kasparov.skife.org/blog/src/ruby/silly-micro-benchmarks.html Regards, Dan This communication is the property of Qwest and may contain confidential or privileged information. Unauthorized use of this communicatio...

Hi, I currently create large (500MB-2.5GB) tar.gz files that I am trying to get to rsync better. After doing some research by reading a lecture presented by the original author of rsync and googling the list archives, I have concluded that the gzip-rsyncable.diff is the best way to get gzipped files to rsync nicely. The only version I could find of this patch is available here:

Greetings, I was curious if the 3.x glusterfs has made any significant write performance headway (especially when dealing with small files). Last time I was testing 2.x, I had to write glusterfs off due to poor performance (previous config/performance-stats can be accessed in list archives if curious). Did anyone notice *dramatic* improvement when switching to 3.x? Thanks, Michael

Package: xen-utils-common Version: 3.0.3-0-2 Severity: normal While reviewing the contents of /etc/init.d/xendomains, I noticed that the script sets a variable named WDOG_PID but later references an uninitialized variable named WDOG_PIG. I'm not sure how much this impairs the behavior of Xen, so I left the severity at "normal". See below for a simple patch: --- xendomains.orig

Hi, I''m looking for suggestions on the simplest way to implement an HTTP proxy under Rails/Mongrel. It should preserve ALL of the proxied HTTP response - including all header content such keepalives, etc. Yes, I know I can do this with Apache''s proxy module, and we already do that for the non-development/test environments. This is just for the development/test environment

Hi all, I want to Connect to IBM MQ from Rails/Ruby, can it be done? and get the messages from the Queue, then i want to use this message in ruby/rails. Is there a direct way of doing the above job?? If so any packages are available? If there is not a way currently, and any thoughts of how we can do the above job indirectly through some other means or round about ways or workarounds can be

I am trying to understand why Mongrel so forcefully disables http pipelining. The docs say because the spec is unclear, and it hurts performance. These reasons smell... wrong. The HTTP spec is pretty clear, and, er, I cannot find anywhere else that claims there is a performance drawback, and lots of studies (and personal benchmarks across years of writing webapps) showing how much it