Hi Mari, Added the descriptions on the values in [1].
[1] https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Sample+Auto-scaling+Policy+Definition On Thu, Apr 24, 2014 at 10:10 AM, Nirmal Fernando <nirmal070...@gmail.com>wrote: > > > > On Thu, Apr 24, 2014 at 10:04 AM, Mariangela Hills <mariang...@wso2.com>wrote: > >> I think we should provide a description on the values used in the >> formulas. Like for example in the load avg formula what is "cores"? The >> following are some of the descriptions: >> >> loadAvg=Load Average of the instance >> cores = Number of CPU cores >> > > +1 :-) > >> >> Regards, >> Mariangela >> >> >> >> >> *--* >> Mariangela Hills >> Senior Technical Writer >> >> *WSO2, Inc.*lean.enterprise.middleware. >> m: +94 773 500185 >> w: http://wso2.com >> <http://wso2.com/events/> >> >> >> On Thu, Apr 24, 2014 at 9:30 AM, Praneesha Chandrasiri < >> pranee...@wso2.com> wrote: >> >>> @Nirmal - Thanks for the comments. I've added the amendments. >>> >>> @Lahiru - I suppose you have mentioned to remove the parameters in the >>> 4.1.0 release as in [1] . >>> >>> Aren't the parameters need to be retained in 4.0 docs? >>> >>> Please advise. >>> >>> [1] https://issues.apache.org/jira/browse/STRATOS-524 >>> >>> >>> On Thu, Apr 24, 2014 at 5:01 AM, Lahiru Sandaruwan <lahi...@wso2.com>wrote: >>> >>>> Hi Nirmal, >>>> >>>> I have already created a Jira for removing some of the values. [1] >>>> +1 for correcting values as you have mentioned. >>>> >>>> And Mari, please remove gradient, secondDerivative, >>>> scaleDownMarginOfGradient, scaleDownMarginOfSecondDerivative from sample, >>>> in each block. Use Nirmals values for sample. >>>> >>>> Thanks. >>>> >>>> [1] https://issues.apache.org/jira/browse/STRATOS-524 >>>> >>>> >>>> On Thu, Apr 24, 2014 at 4:53 AM, Nirmal Fernando < >>>> nirmal070...@gmail.com> wrote: >>>> >>>>> >>>>> https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Sample+Auto-scaling+Policy+Definition#id-4.0.0SampleAuto-scalingPolicyDefinition-loadThresholds >>>>> >>>>> * memoryConsumption - is a percentage and cannot go beyond 100 since a >>>>> process cannot take more than total physical memory. >>>>> >>>>> formula: (usedMemory / totalMemory) * 100 >>>>> >>>>> * loadAverage - is a percentage and it can go beyond 100% but 6000 is >>>>> not a practical value. >>>>> >>>>> formula: (loadAvg/cores) * 100 >>>>> >>>>> * Further you do not want to auto-scale when the gradient is 0 (which >>>>> means 'y' doesn't change with time (x)). >>>>> >>>>> Please see following sample: >>>>> >>>>> { >>>>> "id": "autoscale-policy-1", >>>>> "loadThresholds": { >>>>> "requestsInFlight": { >>>>> "average": 50, >>>>> "secondDerivative": 0.2, >>>>> "gradient": 10, >>>>> "scaleDownMarginOfGradient": 20, >>>>> "scaleDownMarginOfSecondDerivative": 0.5 >>>>> }, >>>>> "memoryConsumption": { >>>>> "average": 70, >>>>> "secondDerivative": 0.2, >>>>> "gradient": 10, >>>>> "scaleDownMarginOfGradient": 20, >>>>> "scaleDownMarginOfSecondDerivative": 0.5 >>>>> }, >>>>> "loadAverage": { >>>>> "average": 100, >>>>> "secondDerivative": 0.2, >>>>> "gradient": 20, >>>>> "scaleDownMarginOfGradient": 20, >>>>> "scaleDownMarginOfSecondDerivative": 0.5 >>>>> } >>>>> } >>>>> } >>>>> >>>>> @Mari, would you be able to do these amendments? >>>>> >>>>> Thanks. >>>>> >>>>> -- >>>>> 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 PPMC member, Apache Stratos(incubating), >>>> Senior Software Engineer, >>>> WSO2 Inc., http://wso2.com >>>> lean.enterprise.middleware >>>> >>>> email: lahi...@wso2.com cell: (+94) 773 325 954 >>>> blog: http://lahiruwrites.blogspot.com/ >>>> twitter: http://twitter.com/lahirus >>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 >>>> >>>> >>> >>> >>> -- >>> Thanks & Best Regards, >>> *Praneesha Chandrasiri* >>> *Technical Writer* >>> *WSO2 Inc. * >>> *Mobile: +(94) 718156888 <%2B%2894%29%20718156888>* >>> *E-mail: pranee...@wso2.com <pranee...@wso2.com>* >>> >>> >> > > > -- > Best Regards, > Nirmal > > Nirmal Fernando. > PPMC Member & Committer of Apache Stratos, > Senior Software Engineer, WSO2 Inc. > > Blog: http://nirmalfdo.blogspot.com/ > -- Thanks & Best Regards, *Praneesha Chandrasiri* *Technical Writer* *WSO2 Inc. * *Mobile: +(94) 718156888* *E-mail: pranee...@wso2.com <pranee...@wso2.com>*
