Hi Imesh, mysqladmin client need not be installed on host machine since Mesos will run this command as a "docker run" command which will be executed inside the container. MySQL official image contains mysqladmin tool so this is not a problem.
Thanks. On Wed, Jul 20, 2016 at 12:46 PM, Imesh Gunaratne <im...@wso2.com> wrote: > Hi Akila, > > On Mon, Jul 18, 2016 at 4:58 PM, Akila Ravihansa Perera < > raviha...@wso2.com> wrote: > >> Hi Imesh, >> >> I've switched to command based health check for MySQL services. It will >> basically run "mysqladmin -u $MYSQL_USER -p$MYSQL_PASSWORD status". This >> will ensure MySQL service is ready to serve SQL requests. >> > > Wouldn't this make it mandatory to have mysqladmin client installed in > the host machine where the deployment script is run? > > Thanks > > >> >> Thanks. >> >> On Mon, Jul 18, 2016 at 9:56 AM, Imesh Gunaratne <im...@wso2.com> wrote: >> >>> >>> >>> On Thu, Jul 7, 2016 at 10:51 AM, Isuru Haththotuwa <isu...@wso2.com> >>> wrote: >>> >>>> Hi, >>>> >>>> Yes, myself and Pubudu also faced this issue, lets fix it properly. >>>> >>>> On Wed, Jul 6, 2016 at 10:57 PM, Pubudu Gunatilaka <pubu...@wso2.com> >>>> wrote: >>>> >>>>> Hi Akila, >>>>> >>>>> Yes we faced several issues related to this. Apart from what you have >>>>> mentioned, we encountered mysql app name is not getting resolved. This >>>>> could be the delay in updating Mesos DNS. For these issues we looking into >>>>> following options. >>>>> >>>>> *Option 1:* >>>>> Use a sleep before deploying a carbon server. Not the best option. >>>>> >>>>> *Option 2:* >>>>> Depend on the health status results. >>>>> >>>>> Currently, we do use a health check for mysql apps. Using dcos CLI we >>>>> can check the status of the app whether the app is alive or not. But this >>>>> cannot guarantee the DBs are ready to serve requests and Mesos DNS is >>>>> updated. >>>>> >>>> >>> >>>> What if we query the Mesos DNS in addition to port checking to see if >>>> its updated? AFAIR what we are seeing is an java.net.UnknownHostException, >>>> related to the DB hostname. >>>> >>> >>> May be we can wait for MySQL sockets as we do for Carbon server >>> transports. >>> >>> Thanks >>> >>> -- >>> *Imesh Gunaratne* >>> Software Architect >>> WSO2 Inc: http://wso2.com >>> T: +94 11 214 5345 M: +94 77 374 2057 >>> W: https://medium.com/@imesh TW: @imesh >>> lean. enterprise. middleware >>> >>> >>> _______________________________________________ >>> Dev mailing list >>> Dev@wso2.org >>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>> >>> >> >> >> -- >> Akila Ravihansa Perera >> WSO2 Inc.; http://wso2.com/ >> >> Blog: http://ravihansa3000.blogspot.com >> > > > > -- > *Imesh Gunaratne* > Software Architect > WSO2 Inc: http://wso2.com > T: +94 11 214 5345 M: +94 77 374 2057 > W: https://medium.com/@imesh TW: @imesh > lean. enterprise. middleware > > -- Akila Ravihansa Perera WSO2 Inc.; http://wso2.com/ Blog: http://ravihansa3000.blogspot.com
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