Hi Lahiru, Are you going to make all three configurable via autoscaler xml? or How you are going to do?
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
