Show backtrace for all Sidekiq threads
It might happen that your Sidekiq queue gets stuck, hanging at 0% CPU load.
When we inspected the process using strace
we saw a blocking select
system call.
You can get
backtraces for each thread
Show archive.org snapshot
by sending the TTIN
signal to the Sidekiq process like this:
kill -TTIN $process_id
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