Am 13.01.2012 17:36, schrieb Rasmus Lerdorf: > FD_SETSIZE is a system limit on the number of open files a single > process can have. From a bash shell type: ulimit -n > and you will probably see this magical 1024 number pop up. This means > that the default is 1024 on your system, so raising it in PHP won't > actually do anything unless you also raise it on your system. We try to > match the limit in order to give you a sensible error message instead of > your program just breaking quietly, or with a warning that doesn't tell > you that it is due to hitting a system limit. > > So, in order to raise this you have to both tell your operating system > that you want to allow individual processes to open more than 1024 files > each and you have to recompile PHP with this higher limit. > > Now, having said that, I don't quite understand why a single PHP cgi > process would ever need more than 1024 open files at the same time. What > exactly are you doing that needs this many descriptors? Sounds like you > have a descriptor leak there somehow.
on "old" sysv-systems it was easy to raise this number with "modern" systemd-units "LimitNOFILE=30000" as example is ONE simple line to raise this limit it is not the job of PHP try to GUESS system-limits and define them on compile-time
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