Stack:
Nginx FCGI CGI::Fast HTML::Template::Compiled Redis CentOS Linux 7.9 spawn-fcgi
I have a Perl application that runs on the above stack.
On process init it does a lot of loading of big hashes and other data into global variables that are mostly preloaded and cached in a distributed Redis install.
To start the application spawn-fcgi creates 6-8 processes on a port nginx then connects to trhough their fcgi module.
The challenge:
— The init process is computing and time consuming; and doing that concurrently six times peaks CPU and overall leads to a ~20-25 second delay before the next web request can be served. And the initial request to each of the six processes has that delay.
I tried loading the content in question directly from Redis on demand but the performance keeping it in memory is naturally much better (minus the initial delay).
is there an architectural pattern that I am not considering here? I am thinking of things as eg. only spinning up one process, having it initialize and then clone(?) it a few times for serving more requests.
I could also think of a way where only 1 process is spawned at a time and once it completes initiation the next one starts; would need to verify that spawn-fcgi can support this.
So my question to this community is if I am missing an obvious better solution than what is in place right now / what I am considering.
Thanks in advance.
submitted by /u/kosaromepr
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I am moving a pile of stuff off of an older Intel Mac Mini onto an M2. Have almost everything migrated, but am stuck on getting a Perl script that relies heavily on DBD::mysql to work. I finally got cpan to build the module, but when I try to use it in actual code, I get: dyld[82852]: missing symbol called. I go through this mess periodically with OS upgrades...and it's possible that this is (once again) OSX ignoring the module because it's not signed. But the given error sounds more like Perl not finding the dynamic library(s) the module was built with...if I just have a script containing "use DBD::mysql;", that doesn't throw an error, which suggests Perl found the module and loaded it. But chokes when it tries to use it.
I'd be fine with building this module with static libraries, if the process of doing so is easy. But have not seen an easy option to cpan to go that route. Suggestions?
submitted by /u/rlmalisz
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my $result = $some_value / scalar(split(",", $some_array[0]));
submitted by /u/secreag
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ar_foo
and $bar
come from a text file.This throws an illegal divide by zero error:
my @ar_foo = ("1", "2", "3"); my $bar = "5"; my $x = $bar / scalar(@ar_foo);
submitted by /u/secreag
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Struggling to find what people write perl code on.
submitted by /u/SquareRaspberry3808
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From the tprc-general Slack channel, Todd Rinaldo wrote yesterday that "Talk Accept, Decline, Waitlist emails have been sent out." See tprc.us for more information about this year's Perl and Raku Conference in Las Vegas, NV.
submitted by /u/talexbatreddit
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Mo utilities for email.
Changes for 0.02 - 2024-04-26T23:02:53+02:00
- Add tests for error parameters.
- Rewrite the tests so that the functional tests are first and then the errors.