Reflections
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Supplement your ideas with freelancing
Entrepreneurship is tough. A number of factors make it tough. Financial requirements As founders we have complete faith in our ideas. After all, if we do not believe in ourselves who will? There has to be those few like us who are foolish enough to blindly trust and try out new ideas, take that leap … Continue reading
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A multi-tenant application is an application where a single running instance serves many customers. An alternative to multi-tenancy is managed services, where one running instance is set up for each customer. The table below shows a comparison between the two approaches. Feature Multi-Tenant Application Managed Services Cost Structure Supports usage based pricing as well as … Continue reading
SaaS is the cutting edge technology in the current product landscape. With an increase in the adoption of SaaS products by enterprises, more and more ISVs are trying the SaaS delivery channel. But, delivering a SaaS product cannot be considered as just a rebranding exercise of existing products. Products mostly have been architected, written, refined … Continue reading
We recently ran into the “java.lang.OutOfMemory: PermGen space” issue. The experience has been a real eye opener. In SMART we use Classloader isolation to isolate multiple tenants. We started testing it in beta a few weeks back and found that every 2 days our server went down giving OutOfMemory: PermGen space. We had 6 tenants … Continue reading
In my blog post “Is scaling with clustering sufficient for cloud offering” I have questioned if clustering is the right solution to scale in the cloud. Can there be other methods of scaling which allows us to scale easily? In this blog post I want to explore alternatives to scaling and explain the solution we are … Continue reading
Queues are FIFO data structures that hold elements in the order they are received for processing. There are typically two ways in which queues can be processed. One method is by polling and the second method is by blocking. In polling, the queue is polled frequently for messages till one is got, while in the … Continue reading
As everyone knows, threadpools allow us to schedule work on a set of threads which execute the work as and when a thread becomes available for processing the work. This is used for asynchronous processing. But what if the work has to do asynchronous operations? Is it wise to tie up the thread and put … Continue reading
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