postgresql database replication

PostgreSQL database server listener settings and Client Connection Methods tutorial, postgresql Server As we all know, PostgreSQL is a free object-relational database server (Database Management System). It is an open-source

The method for connecting and operating the PostgreSQL database in php, postgresql database. Methods for connecting to and operating a PostgreSQL database using php. This document describes how to connect to and operate a

| sync_priority | sync_state -----+----------+---------+------------------+-------------+ -----------------+-------------+---------------+--------------+-------+---------------+----------------+----------------+--------- --------+---------------+------------ (0 rows) postgres=# CREATE TABLE Test6 (ID bigint); Master cannot be updated, it waits until one node in Synchronous_standby_names connects to the master node, but can be canceled by CTRL + C, which commits locally ^ccancel Request sent wa

PHP connection and operation of PostgreSQL database method, PostgreSQL database This article describes the PHP connection and operation of the PostgreSQL database method. Share to everyone for your reference. The implementation m

PostgreSQL tutorial (13): database management details, postgresql details I. Overview: A database can be considered as a name set of an SQL object (database object). Generally, each database object (table, function, etc.) belongs

come up with a reasonable check-up and thresholds. Logically, this also applies to any other monitoring software that you can potentially think of. The rules are the same: think about what your application is doing and think about things that might go wrong. Based on this information, you can select the appropriate check. All available checklists can be found in http://bucardo.org/check_postgres/check_postgres.pl.html.6.5 SummaryIn this chapter, you learned a lot about monitoring. We saw what w

Processing Method for PostgreSQL database transactions in unknown state, postgresql Processing Method Background Database transactions are atomic operations, either successful or failed. However, from the client perspective, there may be a third State: unknown. After the client submits a transaction (rollback, commit,

6.3 Checking the operating system processOnce we have checked the archive and our system view, we are ready to check the system process. Checking the system process may look a bit rough, but it proves to be very effective.On master, we can simply check a process called Wal_sender. On slave we want to check for a process called wal_receiver.Let's first examine what we should see on master:9314?? Ss 0:00.00 Postgres:wal Sender ProcessHS:: 1 (61498) idleOn Linux we can see that the process not only

? More than Checkpoint_segments * 2 + wal_keep_segments should not be used in the standard quota system of PostgreSQL for so many xlog files. If the number of xlog files starts to grow massively, you will encounter some strange problems. Make sure the Archive_command is working properly. If you perform these checks correctly, nothing bad happens in this area-if you can't check these parameters, you're not far from the danger.6.1.2 Monitoring things Lo

Manual PostgreSQL database initialization tutorial in windows, initialize postgresql Environment: win7 64 sp1PG: 9.3.5 1. Create the postgres user, and the password is also postgres: net user postgres postgres /add 2. Create a data directory under the root directory of the database: C:\Program Files\