cluster, the cluster must bind the cluster IP address and MAC address to the vswitch so that the vswitch can be correctly addressable. The cluster IP address and MAC address can be viewed in the cluster parameters, run the following command on the H3C switch:
ARP static 10.9.17.50 03bf-0a09-1132 17 G1/0/15
650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/58/7E/wKiom1SzIgDiQsMpAAGPj0O3gRI918.jpg "/>
Return to the network load balancin
higkoo This user default use The shell is not csh; under CentOS, the default shell should be bash, but the csh used by LR (which appears to support bash in the latest ISO version), was not installed on my machine csh and needed to be installed: Yum install CSH 6, configure LR defaults to the configuration file for an environment variable, and the file is/opt/hp/hp_loadgenerator/env.csh. Now we need to add it to the default configuration of CSH.Vi/etc/csh.cshrcAdd at the end of the file:SOURCE/
service is started, you can see that the following processes are running through the ldquo;ps ndash;efrdquo; command:[Email protected] ~]# Ps-ef|grep nanny/usr/sbin/nanny-c-H 192.168.60.132-p 80-s get/http/1.0\r\n\r\n-x http-a 15-i//usr/sbin/nanny-c-H 192.168.60.144-p 80-s get/http/1.0\r\n\r\n-x http-a 15-i/Among them, nanny is the Pulse service daemon, used to monitor the operation State of the LVS service node, similar to the Ldirectord node monitoring function.Second,
Article Title: ApacheServer Load Capacity Test. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
It is also common that the server load is too large and the program efficiency is affected. We need to
The server load is too large to affect program efficiency is also very common, we need to test this. Here I take the current most common Apache server as an example.
The Apache server comes with a tool called AB (Apachebench), which is in the bin directory. Using this lightweight tool we can load test the server to see
The server load is too large to affect program efficiency is also very common, we need to test this. Here I take the current most common Apache server as an example.
The Apache server comes with a tool called AB (Apachebench), which is in the bin directory. Using this lightweight tool we can load test the server to se
the queue, but the next 2 doctors are in a free state.Load: Waiting classmate, due to waiting for more classmates, so load value is higherCPU usage: Only one doctor is working, so CPU utilization is 33.33%2, load low, high CPU utilization:Suppose there are as many doctors in the B-Ultrasound department as the eye, but each doctor's work is independent.The time to come to a new classmate is about checking o
Suppose you are going to publish an ASP program that is expected to be used by 1000 of users. You know clearly that your program can handle at least two concurrent users, because you and your partner can click on the ASP program all day without any problems. You are wondering whether two users can accurately reflect the compression capability of your program. Of course you can use standard test methods (publish your program and expect the best result
In our last article, we talked about the modeling method for the performance test load model when it landed, and here we start with the first and most commonly used method:Raw Data analysis methodBusiness scenario modeling is mainly about how users use the system, so it is the most effective and accurate method to analyze and model the original data used by the system, i.e. log. The so-called log refers to
difficult to prove that the system in the long run process without problems. As a result, this type of operating curve system takes a long time to run when the process is designed, and the entire execution process includes iterations of several business peaks.Lazy TypeThis type of system is mainly information collection system, investigation report and some registration system, usually only an end point of the requirements, from the majority of people's psychological, mostly indifferent an armc
Regarding the performance of gae,An average of 10 requests are received per second in an hour, and 35 requests per second at the maximum.What are the requests of our website per second? Gave me this important information.
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Translated by niclas Nilsson
We have previously reported that Google App Engine has a public Google Web Toolkit load test. The
Build an LVS load balancing test environment
There are many ways to achieve Server Load balancer: local tyrants directly F5, the best performance, the most expensive
If you have no money, you can use Apache. Nginx works on the fourth layer of the network. Although its performance is normal, it is flexible. For example, you can map port 80 to port 8080 of The Real
Because MySQLCluster implements automatic data synchronization and other functions, a layer of Amoeba serves only to share the load of the SQL layer, therefore, it is necessary for Amoeba based on the traditional single point MySQL service to help us do something. We will not repeat the environment building process. We will start two independent
Because MySQL Cluster itself implements automatic data synchronization and other functions, the installatio
into a war package, a war packet called Bbb.war, the war package into the WebApps of Tomcat, you can directly access Http://localhost/bbb.war can be accessed as a result650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M02/85/DF/wKioL1etN_nSHpJfAAAuegFCbBo965.png-wh_500x0-wm_3 -wmp_4-s_576943858.png "title=" qq picture 20160812104002.png "style=" Float:none; "alt=" Wkiol1etn_ Nshpjfaaauegfcbbo965.png-wh_50 "/>So: The above results need to refresh the page, if the session is not hit, the UU
1.AB tools are Apache's own tools to test server load capacityParameters for 2.ab Tools-V: Version-C: Concurrency number-N: Number of requests-T: Maximum number of seconds to test3. Example: Ab-c 100-n 100-t 10 requested destination addressAb-c 100-n 100-t http://127.0.0.1/index.phpThe test results are also at a glance and the throughput rate tested is:requests p
virtual IP binding on the eth0 device.
Next, restart the Keepalived service on the primary director server and continue to observe the log status of the Standby Director server:
Log status for Standby director server:
Feb 10:12:11 lvs-backup keepalived_vrrp:vrrp_instance (vi_1) Received higher, Prio advert
Feb 10:12:11 lvs-backup keepalived_vrrp:vrrp_instance (vi_1) Entering backup state
Feb 10:12:11 lvs-backup keepalived_vrrp:vrrp_instance (vi_1) removing protocol.
Feb 10:12:11 lvs-backup keep
Label:We did a bit of testing on MySQL dual-master +keepalived high availability,MySQL did the Gtid multithreaded replication, also did the optimization, finally our aim is to see, this high availability in high concurrency high load case, down the machine, finally see whether the data consistency between the two, after several tests, we let development write a small program, continue to write data in the database, We looked for about 6, 7 clients, wh
whileallowing Testexecutionlistener [Org.springframewor[email protected]a15856] to prepare test instance [email protected]]java.lang.illegalstateexception:failed to load Applicationcontextat Org.springframework.test.context.TestContext.getApplicationContext (Testcontext.java:157) at Org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies ( Dependencyinjectiontes
Test disk IO speed with time+dd+ifWrite Speed:Time DD If=/dev/zero of=test.dbf bs=8k count=300000Where/dev/zero is a pseudo-device that produces only a stream of empty characters and does not produce IO for it, so the IO is concentrated in the of file, the of file is used only for writing, so this command is equivalent to the write capability of the test disk.The output is similar (because generally longer
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