CN109165204B

CN109165204B - Method for detecting NFS double-client directory display based on script

Info

Publication number: CN109165204B
Application number: CN201810927665.5A
Authority: CN
Inventors: 李婷婷; 李佳颖; 李玲侠; 刘颖
Original assignee: Zhengzhou Yunhai Information Technology Co Ltd
Current assignee: Zhengzhou Yunhai Information Technology Co Ltd
Priority date: 2018-08-15
Filing date: 2018-08-15
Publication date: 2022-02-18
Anticipated expiration: 2038-08-15
Also published as: CN109165204A

Abstract

The invention provides a method for detecting NFS double-client directory display based on a script, which is characterized by comprising the following steps: 1) executing the script, and printing the catalog creation progress and the catalog number of one client A in real time; 2) and logging in another client B, calculating the number of the current directories, and comparing whether the directory numbers of the client A and the client B are the same or not. The patent provides an automatic method for detecting the directory display of an NFS client, which can realize the directory comparison of double clients through scripts, print the directory creation process in real time and position the time of error. The method changes the repeatability test step with the execution time exceeding 24 hours into automation, reduces the working time through the automation script and improves the working efficiency.

Description

Method for detecting NFS double-client directory display based on script

Technical Field

The invention relates to a method for detecting NFS double-client directory display based on a script.

Background

NFS is an abbreviation of Network file system, and its maximum function is to enable different machines and different operating systems to share files (sharefiles) with each other through a Network, where a directory of a remote host can be mounted through NFS, and the directory is accessed as a local directory, so it can be simply regarded as a file server (FileServer). This may allow the local workstation to use less disk space; a user directory does not need to be put on each network machine for the user; the number of mobile devices on the network is reduced and therefore this sharing approach is also commonly used in storage network systems.

As the time of a client user increases, various situations may occur, for example, a client a and a client B share the same directory at the same time, a subdirectory created by the client a in the directory in the original 2017 years is created, a new subdirectory is created in the client B after 2018 years, and a new subdirectory cannot be displayed on the NFS client in the refresh client a, which is because the Fs (file serving) permission recovery of the client a is abnormal, and when a file is created by the client B, because the Fs permission is held by the client a, local metadata is considered to be up-to-date, a local cache is used, and is not acquired to mds (metadata serving), so that user services are affected. Therefore, the problem of NFS client directory display should be emphasized during the testing process.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a method for detecting the directory display of NFS double clients based on a script.

The scheme is realized by the following technical measures: a method for detecting NFS double-client directory display based on script is characterized by comprising the following steps: 1) executing the script, and printing the catalog creation progress and the catalog number of one client A in real time; 2) and logging in another client B, calculating the number of the current directories, and comparing whether the directory numbers of the client A and the client B are the same or not. Therefore, directory comparison of the two clients can be realized through the script, the directory creation process is printed in real time, and the time of error is positioned.

Before step 1), firstly, a cluster end creates a directory to set NFS sharing, and the NFS sharing is shared to two different clients A and B; the directories are mounted on the client sides A and B, mounting paths are set, the client sides A and B modify/etc/hosts files, respective ip addresses and client names are increased, and secret-free login between the client sides is achieved; the two clients A and B modify/etc/hosts files, respective ip addresses and client names are added, and secret-free login between the clients is achieved. Therefore, secret-free login between the client A and the client B can be realized, the smooth operation of the script is ensured, and the detection is facilitated.

And in the step 2), after the catalog creating progress is printed in real time, logging in the client B at an interval t, wherein t is more than or equal to 10 s. t usually selects 10s, and can log on to client B remotely using ssh, look at the total number of subdirectories using ls commands and compare with the number of subdirectories of client a. This time interval may be more advantageous for detection. And placing the executed script under any directory of the A client. That is, any client a or B can be selected for storage, and if the client B is selected, the client a needs to be remotely logged in.

If the directory numbers are different in the step 2), outputting errors, and marking errors and error time when the directory numbers are different. If the number of the catalogues in the step 2) is the same, repeating the step 1) and the step 2) circularly for n times, wherein n is less than or equal to 10000. Therefore, once a mistake occurs, the mistake and the mistake time when the second catalog is created can be inquired, and the check by a worker is facilitated. Setting is less than ten thousand times, so that the repeatability test step with the execution time exceeding 24 hours becomes automatic, the working time is reduced through the automatic script, and the working efficiency is improved.

In the step 1), the client time is modified and put into a background to be executed, so as to simulate the situation that the NFS client catalog display is inconsistent due to the time problem. Can be used for verification and detection.

Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.

Drawings

FIG. 1 is a flow chart of an embodiment of the present invention.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the following explains the present solution by a specific embodiment in combination with the accompanying drawings.

As can be seen from the attached drawings, the method for detecting the NFS dual-client directory display based on the script is characterized by comprising the following steps: 1) executing the script, and printing the catalog creation progress and the catalog number of one client A in real time; 2) and at the interval of 10s, the logging client B remotely logs in another client B, checks the number of the current directories of the total number of the subdirectories by using an ls command, and compares whether the number of the directories of the client A is the same as that of the directory of the client B.

Before step 1), firstly, a cluster end creates a directory to set NFS sharing, and the NFS sharing is shared to two different clients A and B; the directories are mounted on the client sides A and B, mounting paths are set, the client sides A and B modify/etc/hosts files, respective ip addresses and client names are increased, and secret-free login between the client sides is achieved; the two clients A and B modify/etc/hosts files, respective ip addresses and client names are added, secret-free login between the clients is achieved, and executed scripts are placed in any directory of the client A.

If the directory numbers are different in the step 2), outputting errors, and marking errors and error time when the directory numbers are different. If the number of the catalogues in the step 2) is the same, repeating the step 1) and the step 2) circularly for n times, wherein n is 10000 in the embodiment.

In the step 1), the client time is modified and put into a background to be executed, so as to simulate the situation that the NFS client catalog display is inconsistent due to the time problem.

The present invention is not limited to the above-described embodiments, and variations, modifications, additions and substitutions which are within the spirit of the invention and the scope of the invention may be made by those of ordinary skill in the art are also within the scope of the invention.

Claims

1. A method for detecting NFS dual-client directory display based on script is characterized in that,

the executed script is placed in any directory of the client A, and the executed script realizes the following steps:

1) printing the catalog establishing progress and the catalog number of the client A in real time;

2) and logging in the client B at an interval t which is not less than 10s, calculating the number of the current directories of the client B, comparing whether the numbers of the directories of the client A and the client B are the same, checking the total number of the subdirectories of the client B by using an ls command, and comparing the total number with the number of the subdirectories of the client A.

2. The method for detecting NFS dual client directory display based on script as claimed in claim 1, wherein: before step 1), firstly, a cluster end creates a directory to set NFS sharing, and the NFS sharing is shared to two different clients A and B; and the directories are mounted on the client sides A and B, mounting paths are set, the client sides A and B modify/etc/hosts files, respective ip addresses and client names are increased, and secret-free login between the client sides is realized.

3. The method for detecting NFS dual client directory display based on script as claimed in claim 1, wherein: if the directory numbers are different in the step 2), outputting errors, and marking errors and error time when the directory numbers are different.

4. The method for detecting NFS dual client directory display based on script as claimed in claim 3, wherein: if the number of the catalogues in the step 2) is the same, repeating the step 1) and the step 2) circularly for n times, wherein n is less than or equal to 10000.

5. The method for detecting NFS dual client directory display based on script as claimed in claim 1, wherein: in the step 1), the client time is modified and put into a background to be executed, so as to simulate the situation that the NFS client catalog display is inconsistent due to the time problem.