It is possible. But for now. I have only one EC2 machine provisioned. If i need to enable more micro services, my plan is to run Cassandra and MySQL is RDS and connect it from the application.
On Mon, Oct 1, 2018 at 11:47 AM Awasum Yannick <yannickawa...@gmail.com> wrote: > Is it possible to run Cassandra and MySQL in a different VM? This might > reduce the load on the single VM. Just have to connect the data stores to > the other services. > > > Thanks. > Awasum > > On Mon, Oct 1, 2018, 06:24 Karthik Ananthakrishnan <karthy...@gmail.com> > wrote: > >> Hey Victor, >> >> I did check for different metrics to analyse server performance in >> cloudwatch before trying out swap space. Nginx, MySQL, Cassandra and >> Fineract Application are the only resource consuming applications. Each >> microservice takes around 2GB of memory when starting.. so, 12 micro >> services taking up around 25GB of Memory space leaving very limited >> resource for MySQL, Cassandra, Nginx to run. For now i am not considering >> elastic scalability. This is the reason, i commented out few microservices >> and starting the server to optimise memory consumption. >> >> Regards, >> Karthik >> >> On Mon, Oct 1, 2018 at 1:42 AM Victor Manuel Romero Rodriguez < >> vic_rom...@hotmail.com> wrote: >> >> > Hi Karthik, >> > >> > You have faced the error that all might face when running the services. >> > >> > I can view in the image log that you are using a EC2 machine, you can >> > check the behaviour of the server and make the proper changes using >> > CloudWatch. >> > >> > https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/monitoring_ec2.html >> > >> > Changes are not only at JVM, but also at OS level and of course the >> > Elastic Cloud could help to jump from one machine size to another in a >> > "smooth" way (always there is pain). >> > >> > Even for testing/demo you should check what is the resource consumption >> > for suggesting or proposing a better sizing of the machine based on the >> > services that will be enabled. >> > >> > Regards >> > >> > Victor >> > >> > >> > El 30/09/18 a las 14:06, Karthik Ananthakrishnan escribió: >> > > Hello Isaac and others, >> > > >> > > Many thanks for the suggestions. I tried with xms4G and was not very >> > > helpful. When i looked at the root cause, I found that cassandra trips >> > > during the server boot process when the memory hits peak(free memory >> less >> > > than 100MB) in 32GB RAM server. So, i added swap space to it which >> > helped. >> > > But still the cassandra would go down when memory hits peak. So, i >> > decided >> > > to run the server with fewer microservices by commenting out a few. >> Once >> > i >> > > did that server started properly and has been stable for around a >> week. >> > > Even in local machine, i could run the application by running fewer >> > > microservices. >> > > >> > > Thanks, >> > > Karthik >> > > >> > > On Tue, Sep 18, 2018 at 10:31 PM Karthik Ananthakrishnan < >> > > karthi...@beyondsquare.com> wrote: >> > > >> > >> Hey Issac. I did try the 2G and didnt really help. So, i have already >> > made >> > >> changes as xms2G and Xmx4G. Will get back to you if it worked. >> > >> >> > >> On Tue, Sep 18, 2018 at 7:20 PM, Isaac Kamga <isaac.ka...@mifos.org> >> > >> wrote: >> > >> >> > >>> Thanks for helping out with the image Ed. >> > >>> >> > >>> The image never showed up for me...probably a pesky internet >> > connection. >> > >>> >> > >>> @Karthik Ananthakrishnan <karthy...@gmail.com> , I think my >> > >>> aforementioned >> > >>> suggestion should work. If it doesn't, then use `* -Xms4G -Xmx4G* ` >> > >>> instead. Also, provide feedback on whether or not it helped and >> update >> > >>> documentation appropriately. >> > >>> >> > >>> Cheers, >> > >>> Isaac Kamga >> > >>> >> > >>> On Tue, Sep 18, 2018 at 2:43 PM Ed Cable <edca...@mifos.org> wrote: >> > >>> >> > >>>> The image showed up for me. I've added it to imgur here: >> > >>>> >> > >>>> https://imgur.com/a/Qt145wA >> > >>>> >> > >>>> Ed >> > >>>> >> > >>>> On Tue, Sep 18, 2018 at 3:50 AM Courage Angeh < >> couragean...@gmail.com >> > > >> > >>>> wrote: >> > >>>> >> > >>>>> Hi Karthik, >> > >>>>> >> > >>>>> You still haven't attached the image. You could try using >> > >>>>> https://pastebin.com/ instead. >> > >>>>> >> > >>>>> On Mon, Sep 17, 2018 at 11:54 AM Karthik Ananthakrishnan >> > >>>>> <karthi...@beyondsquare.com.invalid> wrote: >> > >>>>> >> > >>>>>> Thanks Issac. Attached the image as well as the err log for your >> > >>>>>> reference. Let me try using the xms and xmx options. Are you >> using >> > >>>> those >> > >>>>>> when you run the server.? >> > >>>>>> >> > >>>>>> >> > >>>> >> > >>>> -- >> > >>>> *Ed Cable* >> > >>>> President/CEO, Mifos Initiative >> > >>>> edca...@mifos.org | Skype: edcable | Mobile: +1.484.477.8649 >> > >>>> >> > >>>> *Collectively Creating a World of 3 Billion Maries | * >> > http://mifos.org >> > >>>> <http://facebook.com/mifos> <http://www.twitter.com/mifos> >> > >>>> >> > >> >> > >> > >> >> -- >> Karthik Krishnan >> >
