Merge "AFS server restart and audit logging : helper script"

This commit is contained in:
Zuul 2019-08-29 21:03:09 +00:00 committed by Gerrit Code Review
commit 1b14855a45
2 changed files with 130 additions and 4 deletions

@ -286,10 +286,16 @@ It is worth evaluating these settings periodically
Updating Settings Updating Settings
~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
If you wish to update the settings for an existing server, you can The helper script :git_file:`tools/afs-server-restart.sh` is a helper
stop and remove the existing ``bnode`` (the collection of processes script to restart AFS servers, and optionally enable audit logging on
the overseer is monitoring, created via ``bos create`` above) and the servers which is sometimes useful for debugging afs clients. You
recreate it. can edit settings in the script and run ``afs-server-restart.sh
restart`` (or ``restart-auditing``).
If you wish to update the settings for an existing server manually,
you can stop and remove the existing ``bnode`` (the collection of
processes the overseer is monitoring, created via ``bos create``
above) and recreate it.
For example :: For example ::

120
tools/afs-server-restart.sh Executable file

@ -0,0 +1,120 @@
#!/bin/bash
# Copyright 2019 Red Hat, Inc.
#
# 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.
#
# Start/stop AFS servers
#
# Usage:
#
# 1) run this authenticated with admin account
# (mirror-update.opendev.org is one choice with everything setup,
# but can do locally)
#
# $ kinit $username/admin
# $ aklog
#
# 2) afs-service-restart.sh <restart|restart-auditing|start|start-auditing|stop>
#
# 3) If enabled, audit logs will be in a timestampped /opt file
#
#
SERVERS=(afs01.dfw.openstack.org afs02.dfw.openstack.org afs01.ord.openstack.org)
# See AFS system-config documentation for discussion of parameters
DAFILESERVER_OPTS="
-L -p 242 -busyat 600 -rxpck 700
-s 1200 -l 1200 -cb 2000000 -b 240 -vc 1200
-udpsize 131071 -sendsize 131071"
TIMESTAMP=$(date +%s)
function stop_server {
local afs_host=$1
echo "Stopping server $afs_host"
bos stop -server $afs_host -instance dafs -wait
sleep 5
bos delete -server $afs_host -instance dafs
sleep 5
echo "Done"
}
function start_server {
local afs_host=$1
local audit_log=$2
local opts=$DAFILESERVER_OPTS
local with_log=""
if [[ $audit_log == "true" ]]; then
opts+=" -auditlog /opt/dafileserver.audit.$TIMESTAMP.log"
with_log=" (with audit logging) "
fi
echo "Enable server $afs_host $with_log"
bos create -server $afs_host -instance dafs -type dafs \
-cmd "/usr/lib/openafs/dafileserver ${opts}" \
-cmd /usr/lib/openafs/davolserver \
-cmd /usr/lib/openafs/salvageserver \
-cmd /usr/lib/openafs/dasalvager
}
if [[ $1 == "start" ]]; then
for server in ${SERVERS[@]}; do
start_server $server false
done
elif [[ $1 == "start-auditing" ]]; then
for server in ${SERVERS[@]}; do
start_server $server true
done
elif [[ $1 == "restart" ]]; then
for server in ${SERVERS[@]}; do
stop_server $server
sleep 2
start_server $server false
done
elif [[ $1 == "restart-auditing" ]]; then
for server in ${SERVERS[@]}; do
stop_server $server
sleep 2
start_server $server true
done
elif [[ $1 == "stop" ]]; then
echo "*** JUST CHECKING YOU REALLY WANT TO STOP ALL SERVERS ***"
echo "It may be better to restart so the servers aren't all offline"
echo "I will wait 10 seconds, ctrl-c to cancel now"
sleep 10
for server in ${SERVERS[@]}; do
stop_server $server
done
else
echo "*** usage: <restart|restart-auditing|start|start-auditing|stop>"
exit 1
fi