W-JAX Performance Workshop - Database Performance

Java Enterprise Performance Database Performance

Database Application from 10.000 ft

Peristence Frameworks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Persistence (JPA) Frameworks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Lazy vs. Eager loading Application Database select ... from master select ... from detail select ... from detail select ... from detail Application Database select ... from master, detail where ..

Too many SQL calls (N+1 Query) Application Database select ... where id=1 select ... where id=1 select ... where id=100 ,[object Object],[object Object],[object Object]

Generic Caching Architecture Persistence Framework JDBC Layer Database Execution Plan Cache Prepared Statement Cache Cross Session Cache Session Caches Query Cache(s)

Caching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Prepared Statements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Connection Pooling Application Database ,[object Object],[object Object],[object Object]

Connection Handling Increased time to connect while DB and app stays stable ,[object Object],[object Object],[object Object]

Query more data then needed Application First Name Last Name Country Mike Tom Frank Sinatra Jones Myers Germany firstname lastname birthdate USA Person Address street streetNo city country Austria Database select * from person, address

Release Connections early Application Connection getConnection() closeConnection() Connection locked Application Connection getConnection() closeConnection() Connection locked Code requiring DB access Code NOT requiring DB access

Antipattern – Application vs. Data Design ,[object Object],[object Object],[object Object],[object Object]

Antipattern – Bulk Operations via Framework ,[object Object],[object Object],[object Object],[object Object]

Antipattern – Wrong Loading Strategy ,[object Object],[object Object],[object Object],[object Object]

Antipattern – Wrong Caching Strategy ,[object Object],[object Object],[object Object],[object Object]

What to consider during testing ,[object Object],[object Object],[object Object],[object Object]

Questions to Answer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

Statement Statistics are your friend

Monitoring your Connection Pools ,[object Object],[object Object],[object Object],[object Object],[object Object]

Monitoring your Cache Usage ,[object Object],[object Object],[object Object],[object Object],[object Object]

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W-JAX Performance Workshop - Database Performance

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W-JAX Performance Workshop - Database Performance

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