We noticed that one of our Java applications that is deployed on Elastic Beanstalk has hourly service interruption. Each outage only lasts for about 40 - 60 seconds. By looking at the CloudWatch, the ELB has intermittent 5xx errors every one hour, like 09:01, 10:01, 11:01 ... After some investigations, I found it out that it … Continue reading Hourly Intermittent Elastic Beanstalk Service Interruption
Tag: Apache
Apache mod_rewrite URL redirect script
I wrote a bash script to automate the Apache (mod_rewrite) URL redirection. It supports 3 types of redirection: - One to One: eg. From http://jackiechen.local/mylab To http://jackiechen.org./mylab - Any to One: eg. From http://jackiechen.local/* To http://jackiechen.org - Any to Any: eg. From http://jackiechen.local/$1 to http://jackiechen.org/$1 The script can be downloaded from here Note: I tested … Continue reading Apache mod_rewrite URL redirect script
Apache Rewrite Rule Flags – NE
I was working on an Apache URL redirection request this morning. The task is to redirect the URL ‘^/example/1’ to ‘/#example1’. My first configuration is something like below. When I test it, the redirected URL becomes …/%23example1 instead of …/#example1. RewriteRule ^/example/1(/)?$ %{HTTP_HOST}/#example1 [R,L,NC] As you see the problem is that the redirection automatically convert … Continue reading Apache Rewrite Rule Flags – NE