Implementation of database transactions-fault recovery (2) (undo log checkpoint) bitsCN.com
In the previous article on implementation of database transactions (I) fault recovery (undo log), we introduced the application of undolog in data recovery. This article will continue to introduce undolog, however, we will introduce how to use undolog to recover data.
At t
工欲善其事 its prerequisiteThe Java development in the eyes of Stormy, an old Domino programmer, I mentioned the large number of logs that are being encountered in Java development. Server Console Brush-like scrolling, log files grow rapidly, debug when the relevant information is often flooded with examples, in many logger gushing output, to find out where the error is sometimes very cost-effective eye. The role of the
Oracle log file switch (checkpoint incomplete) solution Description: oracle log file switch (checkpoint incomplete), Every 15 min, tpm will drop to almost zero. cpu load is not high, very low. 1 set the parameter: alter system set log_checkpoint_interval = 20000 SCOPE = BOTH; 2 generated @? /Rdbms/admin/awrrpt. SQL Rep
Locate the problem of log file switch (checkpoint incomplete), incompletezipfile
Today, in the test environment, the application is slow and an error occurs in the database. Report the error directly to AWR.Because it is a virtual machine, you do not need to paste the number of CPUs, you can find that the load is high.
Snap Id
Snap Time
Sessions
Cursors/Session
Begin Snap:
152
Peak Alert Log Report checkpoint not complete more frequently, what needs to be adjusted redo?
When Oracle wants to reuse one of your redo logs, it finds that the checkpoint in the redo log is still in, and Oracle will report this warning in alter log
The adjustments assoc
Tags: ons current CENTOS7 completed error note open System canMySQL error: Ignoring the redo log due to missing mlog_checkpoint between the CHECKPOINT 63593957 and the end 63593472. MySQL version: 5.7.19 System version: centos7.3 MySQL running on VMware virtual machine hangs and cannot be restarted due to company power outage Innodb_force_recovery=62017-11-15t12:07:25.235397+08:00 0 [Warning] ' db ' entry
Assembly Binding Log Viewer (Fuslogvw.exe)
The Assembly Binding Log Viewer displays detailed information about the failed assembly bindings. This information helps you diagnose why the. NET Framework cannot find an assembly at run time. These failures are usually caused by an assembly deployment to the wrong location
Carly Jacobson wrote that the server log is a log file created and updated by a server. A common example is the access log generated by Apache (open source Web server software), which provides a history of Web page requests. However, Apache does not just collect access information, it also collects information about error logs, and collects ID file processes, scr
When problems occur with our Windows system, the simplest way to analyze and locate failures is to use Event Viewer, such as Event Viewer in Windows XP, to let us analyze system logs, application logs, and security logs to find clues to possible problems. However, objectively speaking, before the Windows version includes the Windows XP Event Viewer in the use of
What if the event log file is corrupted?
As one of the administrative tools included in the Microsoft Management Console, Event Viewer is used to maintain log information on your computer for related programs, security features, and system events. You can browse and manage event logs through Event Viewer, collect va
TM Chat Log viewer (hint: Register 1 sets, can be used on 3 pcs) The software can view TM chat records without a password.
Use the method, run directly, then select the TM number you want to read, and then click the number you want to view the chat record. The software can see the previous chat record of installing the software.
Note: The software must be installed to the target number to use the computer
Apache Log Viewer is a relatively good log analysis software abroad, there is no Chinese version of the download. Analysis interface as shown:
You can customize the view of the breakdown information, such as IP, address, access date, access page, access status, routing address, browse identification (User Agent) as shown: (Open step: Edit->preferences->c
You can use the Event Log Service in the event viewer to view the computer's on and off time. Because the Event Log service starts and closes along with the computer, and records the event log.
It is necessary to introduce two IDCs: 6006 and 6005. In the event viewer, an
started with the following SQL statement:SELECT * FROM Msdb.dbo.sysjobhistorywhere step_id=0 and job_id= (select job_id from msdb.dbo.sysjobs where [name]= ' Job name ')and run_dateBecause I added a step_id query condition, so the first time cleaning did not clean up, the actual amount of data is still very large, because only delete a state of the2, to delete:Delete from Msdb.dbo.sysjobhistorywhere job_id= (select job_id from msdb.dbo.sysjobs where [name]= ' Job name ')and run_dateBecause my j
The SharePoint ULS Log Viewer project description is a Windows application that makes it easier to view SharePoint ULS log files. Supports filtering and simple views.Information: This is a WPF application, which is supported by LINQ. The current version has the following features: 1. Convert and open multiple SharePoint ULS logs (if multiple or merged logs are se
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