master-slave

mysql中实现master-slave同步： 第一步：分别在两台机子上各装一个mysql (本人测试机系统为unbutu,mysql5.5),如只有一台机器，需使mysql的端口不同（3306，3307）。 第二步：找到mysql 的my.cnf文件。 $cd /etc/mysql 进入该目录。 $ vim my.cnf 如是只读，且不允许修改。需用$ sudo vim my.cnf 第三步：修改my.cnf 中的配置项： 1 需做如下操作： 将bind-address=127.0.0.1 改为 bind-address=0.0.0.0 将#server-id=1 #log_bin=/var/log/mysql/mysql-bin.log 的注释（#）去掉。 添加：character-set-server=utf-8 #保证编码一致。 填加完成后，保存并退出即可。 第四步： 用root权限登录并创建slave数据库服务器用户: $mysql -uroot -p mysql>grant replication slave,replication client on *.* to liang@'192.168.10.21' indntified by 'liang'; mysql>grant replicatin slave on *.* to liang@ '192.168.10

I've been reading about Jenkins master/slave configurations but I still have some questions: Is it so that the slave Jenkins is not actually installed and started up the way master Jenkins is? I assumed I would install one master Jenkins and another slave Jenkins in the same way, and then master Jenkins would control the slave e.g. through SSH? So I cannot view the slave Jenkins through a GUI? The reason why I have thought about adding a slave Jenkins on another VM is because the VM contains our application servers (many test environments). Deploying and starting/stopping application servers

I am investigating using MongoDB ReplicaSet for high availability. But just discovered that in ReplicaSet with 3 nodes, if PRIMARY mongod is the only one left (that is 2 other mongod instances died or were shut down), then after several seconds it switches role to SECONDARY and accepts writes no more. That makes Replica Set worth less than single instance. I know & understand about PRIMARY election, but the PRIMARY role is fixed to a server (by using priority set to ,say, 10) and (for example due to network problems) other servers become inaccessible, why the main server just gives up?! Tested

I am writing an application which requires the Master/Slave switch to happen inside the application layer. As it is right now, I instantiate a Zend_Db_Table object on creation of the mapper, and then setDefaultAdapter to the slave. Now inside of the base mapper classe, I have the following method: public function useWriteAdapter() { if(Zend_Db_Table_Abstract::getDefaultAdapter() != $this->_writeDb) { Zend_Db_Table_Abstract::setDefaultAdapter($this->_writeDb); $this->_tableGateway = new Zend_Db_Table($this->_tableName); } } I need a sanity check on this. I don't think the overhead is too much,

As you can see, the link to that on the hudson website is dead . So, I was hoping for a little step by step for setting up a windows slave with a linux master. I managed to setup hudson on the windows machine, but how do i link the slave to report back to the master and initiate build from the master to run on the windows slave. Basically how is the flow of data between the master/slave achieved, I know this can be done but there is no documentation online that explicitly says do this. I would appreciate as detailed as an answer you could give. Please, and thank you. I actually archived the

I download latest JMeter 4, As part of Remote Testing To run JMeter in remote node, start the JMeter server component on all machines you wish to run on by running the JMETER_HOME/bin/jmeter-server (unix) or JMETER_HOME/bin/jmeter-server.bat (windows) script. I try to execute jmeter-server.bat in windows 7 and got the following error: Server failed to start: java.rmi.server.ExportException: Listen failed on port: 0; nested exception is: java.io.FileNotFoundException: rmi_keystore.jks (The system cannot find the file specified) An error occurred: Listen failed on port: 0; nested exception is:

I have never used a master/slave setup for my mysql databases so please forgive if I make no sense here. I am curious, let's say I want to have a master DB and 3 slave DB's. Would I need to write my database classes to connect and add/update/delete entries to the master DB or is this automated somehow? Also for my SELECT queries, would I need to code it to randomly select a random DB server? What you want to use (and research) is MySQL Replication . This is handled completely independent of your code. You work with the database the same as if there were 1 or 100 servers. you sound like you are