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File Descriptor Limit (plain)

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# Total file descriptor limit
sysctl fs.file-nr
# User limit
ulimit -Hn
# Find out how many file descriptors are in use by user
sudo lsof -u <username> 2>/dev/null | wc -l

# Increase file descriptor limit for a user
echo "username hard nofile 64000" >> /etc/security/limits.conf
echo "ulimit -n 64000" >> /home/username/.bashrc ; echo "ulimit -n 64000" >> /home/username/.bash_profile*

# tested in centos
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comments (1) flag fork
Useful to know if you receive this error when typing regular commands: Resource temporarily unavailable - prdgreene 4 Years ago