devstack/tools/file_tracker.sh
Rodolfo Alonso Hernandez d1c2bf5e7c Add new service "file_tracker"
This new service periodically tracks the file open in the system.

Closes-Bug: #1995502
Change-Id: I02e097fef07655ff571af9f35bf258b2ed975098
2022-11-07 08:21:34 +00:00

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#!/bin/bash
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
set -o errexit
# time to sleep between checks
SLEEP_TIME=20
function tracker {
echo "Number of open files | Number of open files not in use | Maximum number of files allowed to be opened"
while true; do
cat /proc/sys/fs/file-nr
sleep $SLEEP_TIME
done
}
function usage {
echo "Usage: $0 [-x] [-s N]" 1>&2
exit 1
}
while getopts ":s:x" opt; do
case $opt in
s)
SLEEP_TIME=$OPTARG
;;
x)
set -o xtrace
;;
*)
usage
;;
esac
done
tracker