Dancer2 | Perl Dancer Next Generation

Threads in perl are not lightweight. They're separate instances of the program.

The only thing that threads have in common, are things that exist prior to the threads instantating.

You can - with declaring shared variables - allow data structures to share between threads, however I'd warn you to be cautious here - without some manner of locking, you potentially create yourself a race condition.

In your case, you could declare @webs as : shared. This will mean values inserted into it will be visible to all your threads. But you still need a degree of caution there, because 'when stuff is added' is still nondeterministic.

But anyway, this basically works:

It seem like plackup is running the app in a sandbox environment where @ARGV is being erased.

You can still try use environment variables instead of arguments on the command line. For example, using MY_SYSTEM as an example:

You should not modify state to do some calculations on existing state. If possible, derive the value from your state, as follows:

From https://metacpan.org/pod/Redis#reconnect,-every

The reconnect option enables auto-reconnection mode. If we cannot connect to the Redis server, or if a network write fails, we enter retry mode. We will try a new connection every every microseconds (1 ms by default), up-to reconnect seconds.

Be aware that read errors will always thrown an exception, and will not trigger a retry until the new command is sent.

If we cannot re-establish a connection after reconnect seconds, an exception will be thrown.

So in my case the problem was having a prefix set in the routes file. The default route wouldn't get triggered unless i included the prefix in the url. Eg /myprefix/invalid_route would call the default route but just calling /invalid_route wouldn't, resulting in the 404 error. I have not completely come up with a work around as yet but this does at least answer my original question.

Edit:

Solved it. I created a new route file default.pm that contains only the default route with prefix '/' and put it last in app.psgi. This way it is reached only when all else fails.

app.psgi