smitha mukherjee

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since Mar 13, 2017
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Recent posts by smitha mukherjee

I am planning to prepare for Part 1. Ideally I should compete with myself and prepare on regular basis, but stuck in daily routine. Anyone else planning for same and open to join online [setting daily targets for progress].

Sorry for non technical thread in such a forum.



I am reading SCEA book by Mark Cade/Humphery Shell and in chapter 1. I am finding it difficult to understand "Distribution".

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Not able to understand following;

Page 15.

Distribution is among computational resources and Distribution is a primary technique for building scalable systems.

More often than not, if you decompose by layering (layer / tiers), you will not decompose by distribution and vice versa.

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Query:

I have read layer / tiers and in practice have observed my seniors practicing this and still QoS is achieved.
As per book, if you decompose by layering (layer / tiers), you will not decompose by distribution; and other statement is, Distribution is a primary technique for building scalable systems (sociability is part of QoS).

What I meant, first I failed to understand Distribution; and if I design something following layering (layer / tiers) still I would be taking care if QoS (scalable systems); if I follow layering then Distribution (technique for building scalable systems) is not need to follow (as either Distribution and Layering (layer / tiers) can be used for decomposition)?

confused:(.



Hello,

I need to Cache records while saving to database. In current application Hibernate 3 is used.

1. Is it possible to Cache only few Columns of Entity, instead of all columns; reason is few columns are blobs and not needed in cache.
2. Is it possible to set expiration of Entity after few days, I meant, if need to set expiration after 3 days, record can be auto removed from cache?

I have started looking into cache process (tutorials) but not sure if above 2 needs can be fulfilled.

I would highly appreciate if someone can share if above are possible, then I would continue to explore on this process.

Thanks.
1 year ago