index offset

on the correspondence between timestamp and offset in Kafka @ (KAFKA) [Storm, KAFKA, big Data] On the correspondence between timestamp and offset in Kafka gets the case of a single partition and gets the message from all the partitions at the same

What's Kafka? Kafka, originally developed by LinkedIn, is a distributed, partitioned, multiple-copy, multiple-subscriber, zookeeper-coordinated distributed logging system (also known as an MQ system), commonly used for Web/nginx logs, access logs,

C compiler profiling _ 5.2.3 intermediate code generation and optimization _ access array elements and struct members through "offset" Section 5.2.3 accesses array elements and struct members through "offset" In the previous section, we introduced

Definition: An index is a structure that sorts the values of one or more columns in a database table and uses an index to quickly access specific information in a database table. For example such a query: SELECT * FROM table1 where id=10000. If

JQuery 1.2 adds this function. Jqueryobject.offset ([coordinates]) Attention: 1. If the coordinates parameter is omitted, the offset location is obtained, or the offset location is set if the argument is specified. 2. The "Set" action of the

first, the storage structureIn SQL Server, there are many different options available for arranging rules.Binary: Sort by the numeric representation of the characters (ASCII, with the number 32 for spaces, and 68 for the letter "D"). Because

Database storage structure: page, clustered index, nonclustered indexTo understand the database storage structure, understand how the database is accessed first and then understand the database storage structure in principle.I. How data is accessed

 Error scenarios: Open a file using the filestream object and want to read it in the cache. Because the cache size is 1 kb, you need to read it in multiple times. However, when using the filestream. Read () method, Error code: Byte [] sendbuf =

First, the storage structureIn SQL Server, there are many different options available for arranging rules.Binary: Sort by the numeric representation of the characters (ASCII, with the number 32 for spaces, and 68 for the letter "D"). Because

1.1.1 SummaryIf we want to optimize the database, we can mainly use the following five methods to optimize the database system.1. Computer Hardware tuning2. Application Tuning3. Database Index Optimization4. SQL statement Optimization5. Transaction