August 2019
Beginner
608 pages
16h 7m
English
Content preview from Mastering GitLab 12
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Other kind of errors or 100% CPU load
The ultimate way to debug Sidekiq processes is to make it dump a backtrace via GDB:
- Run sudo gdb -p (PID) to attach to the Sidekiq worker process.
- Run call (void) rb_backtrace() in the GDB console and find the generated Ruby backtrace in /var/log/gitlab/sidekiq/current:
2018-09-21_19:55:03.48430 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis/connection/ruby.rb:83:in `_read_from_socket'2018-09-21_19:55:03.48431 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis/connection/ruby.rb:87:in `rescue in _read_from_socket'2018-09-21_19:55:03.48432 from /opt/gitlab/embedded/lib/ruby/gems/2.4.0/gems/redis-3.3.5/lib/redis/connection/ruby.rb:87:in `select'
- It is very ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.