40 lines
1.4 KiB
Bash
40 lines
1.4 KiB
Bash
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#!/bin/sh
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# We check if there is already a process using the socket file,
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# since otherwise the systemd service file could report false
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# positive result when starting and mysqld_safe could remove
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# a socket file, which is actually being used by a different daemon.
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source "`dirname ${BASH_SOURCE[0]}`/mysql-scripts-common"
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if test -e "$socketfile" ; then
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echo "Socket file $socketfile exists." >&2
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# no write permissions
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if ! test -w "$socketfile" ; then
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echo "Not enough permission to write to the socket file $socketfile, which is suspicious." >&2
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echo "Please, remove $socketfile manually to start the service." >&2
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exit 1
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fi
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# not a socket file
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if ! test -S "$socketfile" ; then
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echo "The file $socketfile is not a socket file, which is suspicious." >&2
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echo "Please, remove $socketfile manually to start the service." >&2
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exit 1
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fi
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# some process uses the socket file
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if fuser "$socketfile" &>/dev/null ; then
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socketpid=$(fuser "$socketfile" 2>/dev/null)
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echo "Is another MySQL daemon already running with the same unix socket?" >&2
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echo "Please, stop the process $socketpid or remove $socketfile manually to start the service." >&2
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exit 1
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fi
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# socket file is a garbage
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echo "No process is using $socketfile, which means it is a garbage, so it will be removed automatically." >&2
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fi
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exit 0
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