Server Process, serverprocess

Server Process, serverprocess

1. After the client performs the update operation, how does one collaborate with others?

After the Client performs the update operation, the Server Process is actually completed. The steps are as follows:

1 ). the Data to be updated is directly updated in the Data buffer cache. If the Data to be updated is not in the Data buffer cache, the Data is first loaded to Data files to the Data buffer cache and then updated;

2) data needs to be locked during update operations;

3). Write the Update log to the Redo log buffer;

4). Write Data to the Data buffer cache;

2. Why should I first write the Update log in the Redo log buffer and then write Data in the Data buffer cache?

The high reliability of the database is related to the Redo log buffer. Logs are recorded for all operations on the database, causing data loss. Because the write Redo log buffer is extremely fast, once the write Data buffer cache is down, after the database is restarted, the Data buffer cache Data will be written based on the logs in the Redo log buffer to the status before the power-off.

3. Introduction to the Commit Processing operation.

The Commit Processing operation consists of the following four parts:

1). Server Process notifies Redo log buffer that Commit operations are required;

2). LGWR refreshes the content in Redo log buffer to Redo log files;

3). The Server Process notifies the User Process to complete the commit operation;

4). The Server Process releases the data lock;

4. auto commit will receive a piece of data for a commit operation, which is very inefficient and will damage the integrity of the transaction. data may be lost and is not recommended. It is best to use manual commit.
The DCOM Server Process Launcher service cannot be started.

DCOM Server Process Launcher
Description: it provides the loading function for the DCOM Service. This service provides the loading function for the DCOM Service. If this service is disabled, many manual services cannot be started automatically as needed, however, many services and programs dependent on DCOM components cannot work normally. auto recommended

Process name: svchost.exe
I don't know what Microsoft thinks. The description of this important service is so short, but the description of those inexplicable services is so long and hard to understand. I set it to automatic because if it is set to manual, no program will automatically enable the Service as needed, wps office 2005 and disk management, disk sorting and other programs must use it. If it is disabled, after the system is restarted, the computer icon in the system bar that reflects the network connectivity will disappear, even if you unplug the network cable, it will not come out. This service does not seem to be related to any network application. After being disabled, you can still use the LAN or use ADSL dial-up or GPRS to access the Internet.

In "Start/run", enter msconfig to open the "System Configuration Utility" dialog box, click the "service" tab above, and find "DCOM server process launcher ", click "OK" and then restart the system. You can also enable it in-control panel-> management tools-> services.

Is it a virus or a firewall that disables some services ~ Stop the firewall first ~~

If svchost.exe is infected, we recommend that you reinstall the system ~

How can I solve the unexpected termination of dcom server process launcher? Urgent

TIPS: If you are prompted again: 00: 01: 00, follow the steps below: Start-run-shutdown-a press ENTER svchost file is a file that is vulnerable to virus infection. In a normal system, if you start the task manager, there are 6 svchost files in it, and these 6 files will not occupy your CPU usage, it is used only when windows automatically updates are started. The virus uses a program with the same name as the Program for attack. It adds some strings and file names to its suffix, so that any program running will use the svchost file. The same is true when using QQ. You have selected automatic login, that is, you do not need to enter the password next time, directly go to the logon page. Because the password has been entered and saved last time. So when you log on again, you can only see the QQ Logon Process in the background. The unexpected termination of IE and DCOM Server Process Launcher services is caused by malware and Trojans. Rising's ability to scan and kill viruses is strong, but its ability to handle malware and Trojans is not strong. We recommend that you use Kaspersky and ZONEALARM together.