Joonas Lehtinen

Joonas Lehtinen

San Jose, California, United States
3K followers 500+ connections

About

As a seasoned entrepreneur, I've spent two decades building and leading a successful SaaS…

Activity

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Experience

  • Vaadin Graphic

    Vaadin

    California, United States

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    San Jose, California, United States

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    San Jose, California, United States

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Education

  • Turun yliopisto - University of Turku Graphic

    Turun yliopisto - University of Turku

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    Dissertation title: Coding of wavelet transformed images.

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    Third person to have been awarded Laudatur in the history CS department.

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Publications

  • Feedback Control Algorithms to Deploy and Scale Multiple Web Applications per Virtual Machine

    38th Euromicro Conference on Software Engineering and Advanced Applications (SEAA), September 2012, Izmir, Turkey

    This paper presents feedback control algorithms to autonomously deploy and scale multiple web applications on a given Infrastructure as a Service cloud. The proposed algorithms provide automatic deployment and undeployment of applications and proportional-derivative scaling of the application server tier. The algorithms use utilization metrics as input and do not require a performance model of the application or the infrastructure dynamics. Moreover, our work supports deployment and scaling of…

    This paper presents feedback control algorithms to autonomously deploy and scale multiple web applications on a given Infrastructure as a Service cloud. The proposed algorithms provide automatic deployment and undeployment of applications and proportional-derivative scaling of the application server tier. The algorithms use utilization metrics as input and do not require a performance model of the application or the infrastructure dynamics. Moreover, our work supports deployment and scaling of multiple simultaneous applications per virtual machine (VM). This allows us to share VM resources among deployed applications, reducing the number of required VMs. The approach is demonstrated in a prototype implementation that has been deployed in the Amazon Elastic Compute Cloud.

    Other authors
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Honors & Awards

  • Information technology influencer of the year

    TIVIA - Finnish Information Processing Association

Languages

  • Finnish

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  • English

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