postgresql multi master

Tags: Plpgsql associate an ace off index function preFirst, the problem descriptionWhen the number of records for a table in PostgreSQL recently increased from million to 1 million (design capability is 100 million), the query performance of a multi-table associated view built on top of the table was dramatically slower (from about 10ms to 100s). After analyzing the query plan, it is found that the bottlene

Using Kubeasz to install multi-master multi-slave k8s cluster One, Project introductionKubeasz for GitHub on the open source of a project for the installation of k8s cluster, there are many methods to install k8s, but more than single-master multi-node installation, but Kube

1. Download the MySQL source code version from the MySQL official website [must be the source code version] 2. follow these steps: Code Type Linux Command Line Copy code The Code is as follows: [note] adding a MySQL group and a user # Groupadd MySQL # Useradd-G MySQL [Note] unpackage to/usr/local # Tar-xzf mysql-standard-4.1.9-pc-linux-gnu-i686.tar.gz-C/usr/local [Note] creating a soft link is convenient (this connection can be named mysql001 or another name) # Cd/usr/local # Ln-s mysql-standa

1. Initial state: Master,slave are running states.2. Upgrade processMaster1). Turn off the master record last checkpoint location (latest checkpoint locations), which is where the downtime begins (this is where your downtime starts).The Postgres user executes the following command:$ pg_ctl-d $PGDATA stop-m Fast$ pg_controldata | grep "Latest Checkpoint location"$ Latest Checkpoint location:0/c6198402). Clos

requests (query (), insert (), delete (), update () and the GetType () method) will be called from the thread pool of the process where the content provider resides, rather than from the UI thread of the process. Because these methods may be called from any number of threads at the same time, they must also be implemented as thread-safe methods.Inter-process communicationAndroid uses remote procedure call (RPC) to provide an interprocess communication (IPC) mechanism through which methods calle

Tags: MCT multi log-error including common middleware CTI creat host nameIn this article, I demonstrate how to configure the MySQL group replication multi-Master model (multi-primary). In the configuration, the group replication and the single master model of the

Simulation of I2C bus multi-master communication research and Software Design Author:■ Zheng Xuyang, Xi'an University of electronic science and technology, Li Bingbing, Huang Xinping Abstract:This paper introduces the principle of multi-master communication simulating I2C bus, and proposes a new implementation method.

Using RotateMaster to implement MySQL multi-Master replication bitsCN.com using Rotate master to implement MySQL multi-Master replication background: As we all know, MySQL only supports one-to-many master-slave replication, not

As we all know, MySQL only supports one-to-many master-to-slave replication, but does not support multi-master replication. As we all know, MySQL only supports one-to-many master-to-slave replication, but does not support multi-master