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modifying Linux system parameters to support single-machine open millions of file handles at the same time

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Author: User
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The maximum number of open file handles per process set by Ulimit-n (Setrlimit (Rlimit_nofile)) before Linux kernel 2.6.25 cannot exceed Nr_open (1024*1024), which is more than 100 W ( Unless the kernel is recompiled, after 2.6.25, the kernel exports a SYS interface to modify the maximum value (/proc/sys/fs/nr_open).


The specific changelog:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9cfe015aa424b3c003baba3841a60dd9b5ad319b


In/etc/sysctl.conf, the fs.nr_open=2000000 can be.

modifying Linux system parameters to support single-machine open millions of file handles at the same time

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