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MySQL Binary log is often said to Bin-log, is the MySQL implementation of changes generated by the binary log file, its main role is two:* Data reply* Master-slave database. For the slave end to perform additions and deletions, keep sync with master. 1. Turn on binary log function Need to modify the MySQL configurati
problems, they can also help users better use the system. In fact, all the programs have some of the same requirements for testability, so we can extract these requirements to abstract into a separate system (class), so that all programs can provide a unified testing interface.2. Some key points of design log class1) can be saved into a separate file, as the above analysis, some programs to perform a long time, must be the program to save the executi
Nginx Log File Format and cut Log File As a Web server, logs are indispensable and need to be viewed frequently. This article introduces how to customize the log format in Nginx and use crontab to schedule tasks to cut log files once a day for convenient management. In Nginx, the l
Tags: style blog http io ar color OS using SPThis article is the second in a series of articles in case you haven't read the first article. The previous article address is as follows:On transaction log in SQL Server (i)----the physical and logical architecture of transaction logsIntroductionEach SQL Server database records the corresponding log to the log file in
Dataguard Online redo log and Standby redo log Dataguard classification: Physical Standby (Redo Apply) Logical Standby (SQL Apply) Dataguard protection mode: maximize performance (maximum performance mode) maximize availability (maximum available mode) maximize protection (maximum protection mode) Online redo log stores Unarchived changes of Online transactions.
PHP errors and exceptions log usage analysis, php log records This article analyzes the usage of errors and exceptions in PHP. We will share this with you for your reference. The details are as follows: When it comes to Nginx + PHP service error logs, we usually think of Nginx access logs, error logs, and PHP error logs. Although it seems to be a very simple problem, it actually involves the application con
Yii2.0 Chinese development wizard-import log class useyiilogFileTarget into the custom log file write log header; $ timemicrotime (true); $ lognewFileTarget (); $ log- gt; logFileYii :: $ app- gt; getRuntimePath () .logszhidemy.com. log Yii2.0 Chinese development wizard-cust
Although a log file contains a large amount of useful information, this information can be used to the maximum extent only after deep mining. This article first discusses the information that can be obtained from the log file and the information that cannot be obtained from the log file, and then introduces several excellent
Common shell script running Log Module, shell logTarget Implement recording of SHELL execution start time, end time, running status, error information, etc. Use the function to encapsulate log records and use scripts to call functions.Source code universal function script program_log_new.sh function init_log(){sqlplus -S test/passw0rd@orcl #! /Bin/sh .~ /. Bash_profilesource program_log_new.sh // public sc
OverviewThe Android development process often need to output log information to the console, some people are still in the form of LOG.I (tag,msg) or System.out.println (msg) mode? This article optimizes the log information output to achieve a fast location of the output log and the effect of the output specification log
Turn off Bin-log Log When the Bin-log log is turned on, many mysql-bin.0000*-like files are generated and may take up a lot of hard disk space. For their own test machine or hard disk more nervous VPS, and do not need to do master,slave configuration, can turn off the log f
Overview:Rotatelogs Log Segmentation: Apache uses its own log split module Rotatelogs split log, Rotatelogs is the Apache in the pipeline log program.Awstats Log Analysis: is an open-source log analysis system that can be used to
Apache Log SplitAs the number of visits to the site is increasing, by default the Apache server generates a single log file will be more and more large, if you do not use log segmentation, when the journal file is growing, when taking up too much disk space will be deleted by the system, and as the log file increases,
The Oracle 11g listening and warning logs are both in the/u01/oracle/diag/tnslsnr/oracle/listener directory and the/u01/oracle/diag/rdbms/db1/ The DB1 directory has the following names, respectively, listener directories and DB1 directories. Both directories have the following directories: Alert Cdump HM incident incpkg IR lck metadata stage sweep traceWhere the warning log is in the alert directory, the Listener
Reprint please indicate the source: http://blog.csdn.net/jmppok/article/details/173750571. The question When a C + + program is running in the background, logs can be logged by Log4cplus. When a C + + program is running on a remote server, we need to log on remotely to the server to view the logs. Further, if the C + + program is a parallel program or a distributed program, in order to view the running state of the program, we need to
Tags: mysql5.7 undo log Table Space ReclamationThe Undo log rollback log is saved in the shared tablespace ibdata1 file, and as the business keeps running, the ibdata1 file becomes larger and more difficult and complex to reclaim (shrinking space size), you must first mysqldump-a the entire library and then delete the data directory, Then re-initialize the instal
Error message:Mysql> show slave status \ G* *************************** 1. row ***************************Slave_IO_State: Waiting for master to send eventMaster_Host: IPMaster_User: replMaster_Port: 3306Connect_Retry: 30Master_Log_File: mysql-bin.xRead_Master_Log_Pos: pos_xRelay_Log_File: relay-bin.yRelay_Log_Pos: pos_yRelay_Master_Log_File: mysql-bin.zSlave_IO_Running: YesSlave_ SQL _Running: NoReplicate_Do_DB:Replicate_Ignore_DB:Replicate_Do_Table:Replicate_Ignore_Table:Replicate_Wild_Do_Table
Android log Print class Logutils, able to navigate to the class name, method name, and number of rows where the error occurred and save the log file In development, we often use print log to debug our application. In Java we often use Method System.out.println () to print logs in the console for our debugging. There is a dedicated class
Operating System Log location and Operating System Log location on various operating systemsLinux:/var/log/messagesAIX:/bin/errpt-a (redirect this to a file called messages. out)Solaris:/var/adm/messagesHP-UX:/var/adm/syslog. logTru64:/var/adm/messagesWindows: save Application Log and System
log analysis software Secilog 1.16 released, added cluster, offline log import, log filtering and merging, log management, configuration management and so on. The previous article 1.15, interested to understand. This upgrade mainly adds the following features:ClusterMainly is the collector can be distributed cluster de
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