inotify 监控几个脚本

inotify 监控简单shell

for foo in /proc/*/fd/*; do readlink -f $foo; done | grep inotify | sort | uniq -c | sort -nr

一个很不错的script

#!/bin/sh

​

# Get the procs sorted by the number of inotify watchers

# @author Carl-Erik Kopseng

# @latest https://github.com/fatso83/dotfiles/blob/master/utils/scripts/inotify-consumers

# Discussion leading up to answer: https://unix.stackexchange.com/questions/15509/whos-consuming-my-inotify-resources

​

usage(){

    cat << EOF

Usage: $0 [--help|--limits]

    -l, --limits    Will print the current related limits and how to change them

    -h, --help      Show this help

EOF

}

​

limits(){

    echo "\nCurrent limits\n-------------"

    sysctl fs.inotify.max_user_instances  fs.inotify.max_user_watches

​

    cat <<- EOF 

Changing settings permanently

-----------------------------

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf

sudo sysctl -p # re-read config

EOF

}

​

if [ "$1" = "--limits" -o "$1" = "-l" ]; then

    limits

    exit 0

fi

​

if [ "$1" = "--help" -o "$1" = "-h" ]; then

    usage 

    exit 0

fi

​

if [ -n "$1" ]; then

    echo "\nUnknown parameter '$1'\n" > /dev/stderr

    usage

    exit 1

fi

​

​

generateRawData(){

    # From `man find`: 

    #    %h     Leading directories of file's name (all but the last element).  If the file name contains no slashes  (since  it

    #           is in the current directory) the %h specifier expands to `.'.

    #    %f     File's name with any leading directories removed (only the last element).

    #

    find /proc/*/fd \

    -lname anon_inode:inotify \

    -printf '%hinfo/%f\n' 2>/dev/null \

    \

    | xargs grep -c '^inotify'  \

    | sort -n -t: -k2 -r 

}

​

printf "\n%10s\n" "INOTIFY"

printf "%10s\n" "WATCHER"

printf "%10s  %5s     %s\n" " COUNT " "PID" "CMD"

printf -- "----------------------------------------\n"

​

IFS=''; # to avoid `read` from interpreting whitespace and keep whole lines

generateRawData | while read line; do

    watcher_count=$(echo $line | sed -e 's/.*://')

    pid=$(echo $line | sed -e 's/\/proc\/\([0-9]*\)\/.*/\1/')

    cmdline=$(ps --columns 120 -o command -h -p $pid) 

    printf "%8d  %7d  %s\n" "$watcher_count" "$pid" "$cmdline"

done

参考资料

https://github.com/fatso83/dotfiles/blob/master/utils/scripts/inotify-consumers