Marco,
I written a tiny shell script that does following:
Make's sure there are async_jobs that arent running, also block 8080 via
iptables - to avoid user connecting to MS thats about to go down.
It needs a bit of enhancement - and should lookup the MSID of that
specific server, it looks something like this - consider borrowing
concepts if applicable..
> #!/bin/bash
> DATESTAMP=$(date +%m%d%y-%H%M%S)
> DBPASS=$(java -classpath /usr/share/cloudstack-common/lib/jasypt-1.9.0.jar
> org.jasypt.intf.cli.JasyptPBEStringDecryptionCLI input="$(cat
> /etc/cloudstack/management/db.properties | grep db.cloud.password | awk -F'('
> '{print $2}' | sed 's/)//g')" password="$(cat
> /etc/cloudstack/management/key)" | grep -A2 OUTPUT | tail -1)
> DBHOST=$(cat /etc/cloudstack/management/db.properties | grep db.cloud.host |
> awk -F'=' '{print $2}' | tail -1 )
> DBUSER=$(cat /etc/cloudstack/management/db.properties | grep
> db.cloud.username | awk -F'=' '{print $2}')
> DB=$(cat /etc/cloudstack/management/db.properties | grep db.cloud.name | awk
> -F'=' '{print $2}')
> DBPORT=$(cat /etc/cloudstack/management/db.properties | grep db.cloud.port |
> awk -F'=' '{print $2}')
> MYSQLCMD="mysql -h $DBHOST -u $DBUSER -P $DBPORT -p$DBPASS $DB"
> #echo $DBPASS $DBHOST $DBUSER $DB $DBPORT
>
>
> JOBS=$(echo 'SELECT * FROM cloud.async_job where job_status=0 and
> job_dispatcher not like "pseudoJobDispatcher"' | $MYSQLCMD | wc -l)
>
> if [ $JOBS -gt 0 ]
> then
> echo "WARN: Looks like i have active jobs in flight, please
> try again later"
> echo 'SELECT * FROM cloud.async_job where job_status=0 and
> job_dispatcher not like "pseudoJobDispatcher"' | $MYSQLCMD
> exit
> else
> echo "NOTE: No jobs running, good to go!"
> echo "NOTE: Blocking incoming 8080"
> /sbin/iptables -A INPUT -p tcp --destination-port 8080 -j DROP
> service cloudstack-management stop
> service cloudstack-management stop:wq
> CSPID=$(cat /var/run/cloudstack-management.pid )
> ps -p $CSPID >/dev/null 2>&1 && (kill -9 $CSPID)
> ps -p $CSPID >/dev/null 2>&1 && (echo "ERROR: Count not
> terminame cloudstack service on `hostname` with pid $SCPID"; /sbin/iptables
> -D INPUT -p tcp --destination-port 8080 -j DROP; exit 1)
> service cloudstack-management start
> echo "NOTE: Unblocking incoming 8080"
> /sbin/iptables -D INPUT -p tcp --destination-port 8080 -j DROP
> fi
Regards,
ilya
On 7/1/16 3:30 AM, ma...@exoscale.ch wrote:
> Hi,
>
> I can't edit the page but I'll be glad to put some effort for the V5:
> - Live migration for KVM
> - Improve logging using UUIDs (as I already did part of that for us at
> exoscale)
>
> I'm in the process to add another feature we need: graceful shutdown of a
> management server when running a cluster of MS. The goal is to send a
> "prepareForShutdown" command to one or more MS and have them rebalance their
> agents to the ones still running so that no command will be lost. Then there
> shouldn't be any downtime with any agent during an update.
>
> Kind regards,
> Marc-Aurèle
>
> PS: Is there any architectural discussion going on on the Slack channel? I
> saw that the IRC is not so active...
>
>
>> On 01 Jul 2016, at 11:55, Paul Angus <paul.an...@shapeblue.com> wrote:
>>
>> There's not been much response to this, but I'll start clearing away the
>> unclaimed items, people can always add them back.
>>
>>
>> Kind regards,
>>
>> Paul Angus
>>
>>
>> paul.an...@shapeblue.com
>> www.shapeblue.com
>> 53 Chandos Place, Covent Garden, London WC2N 4HSUK
>> @shapeblue
>>
>>
>>
>
