On Sat, Nov 8, 2014 at 8:26 PM, Rajkumar Rajaratnam <rajkum...@wso2.com> wrote:
> Hi Lahiru, > > Are you going to make all three configurable via autoscaler xml? or How > you are going to do? > > IMO it should be a part of Autoscaling policy. > Thanks. > > On Sat, Nov 8, 2014 at 8:22 PM, Lahiru Sandaruwan <lahi...@wso2.com> > wrote: > >> >> >> On Sat, Nov 8, 2014 at 8:06 PM, Nirmal Fernando <nirmal070...@gmail.com> >> wrote: >> >>> Why not simply round the value to nearest integer? >>> http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round(float) >>> >> >> It is not the industry practice. AWS guys use a more complex algorithms. >> But we can start with suggested options. >> >> Because some users might have the luxury of going for ceiling(may be an >> on premise IaaS) where others do not(Public IaaS). >> >> >> >>> On Sat, Nov 8, 2014 at 3:28 PM, Lahiru Sandaruwan <lahi...@wso2.com> >>> wrote: >>> >>>> /s/fives/gives >>>> >>>> On Sat, Nov 8, 2014 at 7:57 PM, Lahiru Sandaruwan <lahi...@wso2.com> >>>> wrote: >>>> >>>>> Hi all, >>>>> >>>>> I'm working on $subject. When we predict the instance count from >>>>> statistics and dependency based ratio in application, we will get numbers >>>>> with fraction. E.g. 1.2, 3.9, 4.5. Therefore we have to round the instance >>>>> count for creating instances in IaaS. >>>>> >>>>> >>>>> I have thought of three types to choose from. >>>>> >>>>> >>>>> 1. Floor >>>>> 2. Ceiling >>>>> 3. Custom percentage >>>>> >>>>> #3 means, user can give a limit of fraction to decide whether to round >>>>> to floor or ceiling. >>>>> >>>>> e.g. User fives fraction as 0.2, >>>>> >>>>> Instance count 3.1 Rounded value 3 >>>>> Instance count 3.21: Rounded value 4 >>>>> Instance count 1.19: Rounded value 1 >>>>> >>>>> Feel free to give feedback. >>>>> >>>>> Thanks. >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> -- >>>>> Lahiru Sandaruwan >>>>> Committer and PMC member, Apache Stratos, >>>>> Senior Software Engineer, >>>>> WSO2 Inc., http://wso2.com >>>>> lean.enterprise.middleware >>>>> >>>>> email: lahi...@wso2.com blog: http://lahiruwrites.blogspot.com/ >>>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >>>>> >>>>> >>>> >>>> >>>> -- >>>> -- >>>> Lahiru Sandaruwan >>>> Committer and PMC member, Apache Stratos, >>>> Senior Software Engineer, >>>> WSO2 Inc., http://wso2.com >>>> lean.enterprise.middleware >>>> >>>> email: lahi...@wso2.com blog: http://lahiruwrites.blogspot.com/ >>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >>>> >>>> >>> >>> >>> -- >>> Best Regards, >>> Nirmal >>> >>> Nirmal Fernando. >>> PPMC Member & Committer of Apache Stratos, >>> Senior Software Engineer, WSO2 Inc. >>> >>> Blog: http://nirmalfdo.blogspot.com/ >>> >> >> >> >> -- >> -- >> Lahiru Sandaruwan >> Committer and PMC member, Apache Stratos, >> Senior Software Engineer, >> WSO2 Inc., http://wso2.com >> lean.enterprise.middleware >> >> email: lahi...@wso2.com blog: http://lahiruwrites.blogspot.com/ >> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >> >> > > > -- > Raj > -- -- Lahiru Sandaruwan Committer and PMC member, Apache Stratos, Senior Software Engineer, WSO2 Inc., http://wso2.com lean.enterprise.middleware email: lahi...@wso2.com blog: http://lahiruwrites.blogspot.com/ linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146