~bisscuitt/percona-monitoring-plugins/lsof

Fix for bug #1297442 leverage lock-free SHOW SLAVE STATUS in Percona Server

added added

removed removed

local TEMP=$(mktemp -t "${0##*/}.XXXXXX") || exit $?

trap "rm -f '${TEMP}' >/dev/null 2>&1" EXIT

if [ -z "$1" ]; then

mysql_exec 'SHOW SLAVE STATUS\G' > "${TEMP}"

# Leverage lock-free SHOW SLAVE STATUS NOLOCK with Percona Server

mysql_exec "SHOW SLAVE STATUS NOLOCK\G" > "${TEMP}" 2>/dev/null || mysql_exec "SHOW SLAVE STATUS\G" > "${TEMP}"

else

# This is just for testing. /dev/null it.

cat "$1" > "${TEMP}" 2>/dev/null

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=item *

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C<SHOW SLAVE STATUS>.

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C<SHOW SLAVE STATUS NOLOCK> with Percona Server and w/o NOLOCK otherwise.

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=back

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