What is L2 cache? Summary of usage of second-level cache instances

This article mainly introduces the detailed explanation of hibernate second-level cache in Java. The editor thinks it is quite good. Now I will share it with you and give it as a reference. Let's follow the editor to take a look at Hibernate's second-level cache 1. Cache overview Cache (Cache): a very common concept in the computer field. It is located between the application and the permanent data storage source (such as a file or database on the hard disk). Its function is to reduce the frequency of the application directly reading and writing the permanent data storage source, thereby improving the application's running performance. The data in the cache is a copy of the data in the data storage source. The physical medium of the cache is usually memory. Hibernate provides two levels of cache. The first level of cache is the Session level cache, which is a transaction-wide cache. This level of cache is managed by hibernate, and generally no intervention is required. The second level of cache is the SessionFactory level cache, which is a process-wide cache. Hibernate's cache can be divided into two categories: built-in cache: Hibernate's own cache , cannot be uninstalled. Usually in Hiber

1. Detailed explanation of the second-level cache in java

Introduction: This article mainly introduces the detailed explanation of hibernate second-level cache in Java. The editor thinks it is quite good. Now I will share it with you and give it as a reference. Let’s follow the editor to take a look

2. Mybatis’s detailed explanation of cache examples

Introduction: This article mainly introduces the query cache of mybatis tutorial (first-level cache, second-level cache and integrated ehcache). It has certain reference value. Interested friends can refer to it. Let’s take a look

3. Detailed explanation of MyBatis’s code example on the second-level cache problem

Introduction: This article mainly introduces MyBatis’s second-level cache issues. The second-level cache is a Mapper-level cache. Multiple sqlSession operates on the same Mapper, and its second-level cache can be shared.

4. Detailed explanation of caching and second-level cache in Java's Hibernate framework

##Introduction: This article mainly introduces the cache and second-level cache in Java's Hibernate framework. Hibernate is one of the three major web development frameworks of Java's SSH. Friends in need can refer to it

5. In-depth understanding of Mybatis second-level cache

# #Introduction: Compared with the first-level cache, the second-level cache has a larger scope and can be shared by multiple SqlSession. Let’s take everyone through this article to learn mybatis second-level cache knowledge, let’s take a look

6.

PHP cache classes for second-level cache and third-level cache

Introduction: Second-level cache and third-level cache: Second-level cache and third-level cache PHP cache class used by yourself: ##7.

Hibernate second-level cache related properties

Introduction: Hibernate's SessionFactory can hold an optional second-level cache. By using this second-level cache, the performance of Hibernate's persistent access can be improved. About Hibernate

8.

The difference between get and load in Hibernate

Introduction: For the get method, hibernate will confirm whether the data corresponding to the id exists. First, it will search in the session cache, and then in the second-level cache. If not, it will query the database

9. WordPress 3.8 nginx 502 Bad Gateway

Introduction: Server configuration CPU model [8 cores] Intel(R) Xeon(R) CPU E5620 @ 2.40GHz | Frequency: 2394.021 | Second level cache: 12288 KB | Bogomips: 4788.04 × 8 Memory 4G Hard drive 3 300G 15000 converted to RAID 5 WordPress 3.8 CentOS 5.7 nginx/1.2.7 p...

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