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Handbook of Sustainable Design of Digital Services

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Backend    ODD#12     ODD#13    

Are the slow query detection thresholds set effectively ?

Advice 

Data

C People

B Planet

B Prosperity

Difficulty

N/A

Priority

/

Récurrence

/

Tests

Are the slow query thresholds reviewed periodically?

Precisions

Even if the data structure does not change, the volumes will change between the design and the use of the service. This volume may lead to load phenomena or resource constraints that were not previously apparent. Monitoring the evolution of the most consuming processes is essential throughout the life of the service.

Additional elements

Rule for assessing the level of compliance of the criterion

0 / 0

Life cycle

Administration

19 other criteria related to the recommendation: Reduce the impact of data from its storage and access

Recommendation Essential

Data

Is the number of requests kept to a minimum (no looping) ?

Advice

Data

Is an alternative to SQL queries used when possible (local storage or similar) ?

Recommendation

Data

Do implemented queries use joins rather than multiple queries ?

Advice

Data

Can data be backed up incrementally ?

Recommendation

Data

Is the removal of obsolete data being managed ?

Recommendation

Data

Are database indexes consistent with operations ?

Advice

Data

Is an alternative to the relational model being considered ?

Advice

Data

Is a NoSql solution more efficient than its relational equivalent ?

Advice

Data

Have the different data access solutions (queries, triggers, stored procedures) been tested ?

Advice

Data

Are EXPLAIN clauses used on "Slow queries" to optimize indexes ?

Recommendation

Data

Are "live" and "dead" data handled differently (eg: Slow storage for "dead" data) ?

Recommendation

Data

Is frequently accessed data available in RAM ?

Recommendation

Data

Are data replications between multiple Database Engine (Cluster) instances appropriate for sensitivity and availability requirement ?

Recommendation

Data processing

Does the data have an expiration date when it is deleted ?

Recommendation

Data processing

Is sensitive data collected ?

Recommendation

Data processing

Is the data collected really useful ?

Recommendation

Data processing

Does the API provide limits, filters and the list of fields to return ?

Recommendation

security

Is sensitive user data secure ?

Advice

Data processing

Does regulated data (personal, health, financial) comply with the recommendations for structuring these categories of data ?