Error creating cache file

[DikoIbragimov]

What steps will reproduce the problem?

supervisor

[program:roadrunner]
command=./rr serve
process_name=%(program_name)s_%(process_num)02d
numprocs=1
autostart=true
autorestart=false
startsecs=0
redirect_stderr=true
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0

What is the expected result?

no error

What do you get instead?

Caught unhandled error "mkdir(): File exists" while building "Yiisoft\Cache\File\FileCache".

Additional info

Q	A
Version	3.0.1
PHP version	8.3
Operating system	Ubuntu (Docker)

[DikoIbragimov]

version: '3'
server:
    command: "php ./worker.php"

http:
    address: 0.0.0.0:80
    pool:
        num_workers: 15
        debug: false
    middleware: [ "static", "headers" ]
    static:
        dir: "./public"
        forbid: [ ".php", ".htaccess" ]
    headers:
        response:
            "Cache-Control": "no-cache"

logs:
    mode: production
    level: warn

[vjik]

Seems, it's race condition. Cache directory is created in FileCache constructor.

[samdark]

In this case, we have to handle the error and re-check if there's already a directory. Also, likely there's no need to create directory in constructor.