transaction id

Zhou LinReprint please mark out the source1. The meaning of the row record hidden column can begin with the Row_search_for_mysql (storage3661) function, which is a function of the MySQL server level search record. An important parameter of this

[MySQL 5.6] Gtid implementation, operation and maintenance changes and existing bugsHttp://www.tuicool.com/articles/NjqQjuSince not much in-depth attention to gtid, here to make up for themselves, this article is I look at the document and code

How the InnoDB storage engine MVCC WorksInnoDB the row structure of the storage engineMySQL Official manual https://dev.mysql.com/doc/refman/5.7/en/innodb-multi-versioning.html Internally,InnoDB adds three fields to each row stored in the

The internal management of the log buffer is divided into two parts, one being the build redo record and the other being the redo record writing to the online log file. These two parts are not isolated and unrelated. During the process of generating

The PostgreSQL control file is named Pg_control under the $pgdata/global directory. The following three sections of information are recorded in the control file: 1. Static information generated when INITDB: Pg_control version number:922Catalog

Transferred from: http://www.appneta.com/blog/introduction-to-javas-threadlocal-storage/ What is ThreadLocal? A Simple Exampleas its name suggests, a single instance of the ThreadLocal can store different values for each thread independently.

Gtid is a global transaction ID that has been successfully executed based on the original MySQL server, combined with the server ID and transaction ID. This global transaction ID is unique not only on the original server, but also on all MySQL

Go from:http://www.2cto.com/database/201306/221329.html  overview  mha is a Japanese MySQL Daniel written in Perl a set of MySQL failover scheme, To ensure high availability of the database system. In the time of downtime (usually within 10-30

Some of the other high-availability solutions for MySQL were mentioned in the previous MHA introduction, just a little bit about the following, which is described in detail here.MySQL replication is asynchronous or semi-synchronous. When Master

Structure Description of Table Innodb_trx Field name Description trx_id InnoDB unique transaction ID within the storage engine Trx_state Status of the current transaction

For reprint, please indicate the source: http: blogcsdnnetguoyjoearticledetails48805847 ********************************** MySQL lock management mechanism ********************************** MySQL lock management mechanism ***************************

When the client obtains an IP address through DHCP, it sets the DHCP server: the server name is win2k3, the IP address is 192.168.1.1, and the client host name is winxp2; Scope: 192.168.1.1 & mdash; 192.168.1.10. Part 1: 1. the client sends

We have introduced the basic content of DHCP. Here we will discuss in detail the knowledge and problems related to the DHCP packet format. DHCP packet format Let's introduce the DHCP packet format, 1 OP (1) Htype (1)

SQLSELECTKTUXEUSN, KTUXESLT, KTUXESQN, * TransactionID * 2 KTUXESTAStatus, KTUXECFLFlags, KTUXESIZ3FROMx $ ktuxe4WHEREktuxesta! INACTIVE; KTUXEUSNKTUXESLTKTUXESQNSTATUSFLAGSKTUXESIZ --------------------------------------- SQL SELECT KTUXEUSN,

Basic tutorial on querying the cache mechanism of MySQL, The MySQL cache mechanism simply caches the SQL text and query results. If the same SQL statement is run, the server directly obtains the results from the cache without parsing and executing

ZAB protocol for ZooKeeper ZooKeeper is a highly available consistency coordination framework. The natural ZooKeeper also implements a consistency algorithm. ZooKeeper uses the ZAB protocol as a data consistency algorithm. ZAB (ZooKeeper Atomic

This article mainly introduces PHP payment instances in detail, including PHP payment source code and PHP refund source code, which has some reference value, interested friends can refer to this article to share with you the PHP payment instance,

Turnip cabbage each their own. I like Java as a small weave. Learning, which is one of the reasons I like it. The tools you use in your daily work often have things you never know about, such as a method or some interesting usage. such as threading.

1, the role of zookeeper» Leaders (Leader), responsible for voting initiation and resolution, update system Status» Learners (learner), including followers (follower) and observers (Observer), follower used to accept client requests and want the

This article belongs to the Distributed System Learning Note Series, the previous note collated the Paxos algorithm, this article belongs to the fourth chapter of the original book, combing zookeeper target characteristics and Zab protocol. 1.