cvs locks

1. Verify CVS Installation # Rpm-Q CVS 2. Create a CVS user group and user # Groupadd CVS # Adduser cvsroot # Passwd cvsroot 3. Create cvsroot # Mkdir/home/cvsroot # Chown cvsroot. CVS/home/cvsroot 4. initialize CVS # Su-cvsroo

The most reason is that cygwin is installed on his own machine, so it is not good for him to be idle there every day. He needs to be assigned a purpose, and a CVS server needs to be installed, I decided not to use cvsnt and installed a service under cygwin on my machine. Now start: Step 1: To install cygwin, You must select the following package: Devl/CVS is required. Admin/cygrunsrv is used to add the cyg

I read a lot of tutorials on the Internet, all of which were copied. I checked the documents and shared them. 1. check whether the CVS server has been installed. input: rpm ndash; qcvs (no painting, input yuminstallcvs for installation) Note: RPM is the abbreviation of RedHatPackageManager (RedHat package management tool) I read a lot of tutorials on the Internet, all of which were copied. I checked the documents and shared them. 1. install the

Paip. Local CVS environment setup Here the server is using a cvsnt-2.5.03.2382.msi. Only two or three MB. After the installation, it prompts you to restart the system, which is not required .. You only need to go to service management and start two CVS services. You can. (Why cannot I start the service when I start the service ?? My method is to delete the file and reinstall it. The system will prompt

Q: There are two users on the server, administrator and user1. I have set a working directory user1wk for user1. This working directory has been set with permissions. Only user1 can perform CrW. But I don't know why. Every time I add a file in this directory, the server returns the message "User administrator cannot change C:" workroot "user1wk, at that time, I used user1's account to log on. Could you help me analyze the problem? A: Only users who use the checkout module can perform operations

Analysis of Inter-thread communication 2: read/write locks and spin locks, analysis of spin The mutex and condition variables are used for thread synchronization. This article discusses the use of read/write locks and spin locks, and provides the corresponding code and precautions, the relevant code can also be found i

Java. util. concurrent. locks. ReentrantLock class usage, concurrent. locksThe lock class is implemented as follows: Explanation of the ReentrantLock interface method: The lock () method is used to obtain the lock object. If the lock is not obtained, the lock is always obtained. Trylock (): A boolean value. It indicates whether the lock is obtained. If the lock is not obtained, false is returned. If the lock is obtained, true is returned. TryLock (lon

Shared lock (s lock ): If transaction t adds a shared lock to data a, other transactions can only add a shared lock to data a and cannot apply exclusive locks. Transactions authorized to share locks can only read data and cannot modify data. Exclusive lock (x lock ): If transaction t adds an exclusive lock to data a, other transactions cannot block aplus any type. Transactions authorized to exclusive

OracleDatabasePessimistic lockAndOptimistic lockIs what we will introduce in this article. Sometimes, for maximum performance, databases generally have a concurrency mechanism, but the problem is Data Access conflicts. To solve this problem, most databases Use Data Locking. There are two methods to lock data: Pessimistic lock and optimistic lock. What is a pessimistic lock? A pessimistic lock, as its name implies, is a pessimistic attitude towards data conflicts. That is to say, assume that data

When you use eclipse and cvsnt as version management tools, you will find garbled characters in the Chinese file names and errors during update. The error is generally caused by fileattr, the warehouse information file of the CVS server. XML is blank after the Chinese file is submitted, that is, a 0-byte file. Cvsnt version: v2.5.04 Eclipse uses rsdp as an example. Configure the CVS server and check

Application scenarios and scenarios of optimistic locks and pessimistic locks Locking)During the implementation of business logic, data access needs to be exclusive. For example, end computing on the day of the Financial SystemProcessing, we want to process the data at a cut-off time point, rather than in the settlement process.(Several seconds or several hours), and the data changes again. In this case, w