Sidekiq: Problems and Troubleshooting
When using Sidekiq in your application, you must write thread-safe code.
This wiki page also lists gems that are known to be unsafe on threaded applications.
When adding a gem that will also be used by a Sidekiq worker, make sure to confirm it's thread-safe.
Related cards:
How to monitor Sidekiq: A working example
In order to have monitoring for Sidekiq (like queue sizes, last run of Sidekiq) your application should have a monitoring route which returns a json looking like this:
{
"sidekiq": {
"totals": {
"failed": 343938,
"proces...
Detect mobile or touch devices on both server and client
Although it's tempting flirt with detecting mobile/touch devices with CSS media queries or Javascript feature detection alone, this approach will be painful when heavily customizing a feature beyond just tweaking the looks. Eventually you will wan...
Setup Sidekiq and Redis
If you want Sidekiq to be able to talk to Redis on staging and production servers, you need to add the following to your configuration:
# config/initializers/sidekiq.rb
require 'sidekiq'
Sidekiq.configure_client do |config|
config.redi...
The top responsive web design problems ... and how to avoid them
I recently created a survey asking fellow designers about the problems they faced when creating fully responsive sites. This article will list the most common problems they reported and offer possible solutions, along with suggestions to conside...
SSL/TLS - Typical problems and how to debug them
The linked article provides a description of commonly found problems with TLS and hints on debugging / solving them.
Andand and SimpleDelegator
The very useful andand gem does not play very nice with Ruby's SimpleDelegator (or vice versa).
This following will not work:
class MyDecorator < SimpleDelegator
def foo
end
end
...
Problems with Rails 3 Remote Links and Forms Using jQuery .live() in IE
There is a problem with AJAX response handling for Rails 3 remote links and forms in Internet Explorer. This problem affects applications still using jQuery 1.4.2.
Disable text selection on iOS and Android devices
When you double-tap a string of text on an iPhone or iPad a complicated context menu for copying and pasting will appear. This can confuse unexperienced users.
Use the Javascript hack below to disable text selection on mobile devices:
// Dea...
makandra_sidekiq 0.2.0 respects the configured Sidekiq timeout
There was an issue with makandra_sidekiq < 0.2 concerning the stopping of Sidekiq.
Sidekiq < 6 has two finishing timeouts: one for finishing things itself (A), and one for sidekiqctl befo...