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catalogue 1, Introduction 2, MHA services working principle Actual operation Initialize environment Modify the hostname of Master, Slave1 and Slave2 nodes Master slave synchronization Install MHA 1, Introduction MHA (Master HA) is an open source MySQL high availability program. It provides the automatic master failover function for M ...

FTP service in Linux 1, Introduction to FTP (1)FTP service - the protocol used to transfer files FTP is the English abbreviation of File Transfer Protocol. It is one of the protocols in TCP/IP protocol group. Used for two-way transfer of control files on the Internet. At the same time, it is also an Application. There are different FTP a ...

Configuration of docker network The creation of namespace in Linux kernel ip netns command You can complete various operations on the Network Namespace with the help of the ip netns command. The ip netns command comes from the iproute installation package. Generally, the system will install it by default. If not, please install it yourself. ...

explain It's a record of a pit, tm. It's been torturing me for a long time. All kinds of check systems, such as RI Zhi and Baidu, are finally compared with the previous environment. The RI Zhi error report is strange and outrageous.By the way, if there is a problem with k8s, we can look at the k8s log first. The way is as follows First use ...

Let's first look at the description of condition variables in Linux high performance server programming: The above words can be summarized as follows:         Condition variables can be used when a thread in a multithread depends on the change of shared data by another thread! It's easy to understand conditional variabl ...

catalogue 1, Master slave replication architecture and principle 1. Principle of mysql master-slave replication 2. Principle of read-write separation 2, Configure master-slave replication and read-write separation 1. Environment configuration 2. Initial environmental preparation 3. Set up mysql master-slave replication 3. Build Amoeba t ...

catalogue 1, Mycat application scenario 2, Mycat summary 3, Specific operation 1.master server: 192.168.68.200 2.slave server: 192.168.68.30 3.mycat server: 192.168.68.40 4. Client: 192.168.68.195 five   mycat server: 192.168.68.40 6.master server: 192.168.68.200 7. Client: 192.168.68.195 8. Verification On the master-slave ser ...

1. Command line syntax Basic command syntaxFunction descriptionhelpDisplay all operation commandsls pathUse the ls command to view the child nodes of the current znode - w: listen for child node changes - s additional secondary informationcreateNormal creation - s contains sequence - e: temporary (restart or timeout disappears)get pathGet the ...

1. Introduction to select Under linux, we can use select for I/O reuse, monitor multiple file descriptors and judge whether there are qualified events. When using the select function, we can see whether there are readable, writable or error events. 2 function explanation 2.1 function prototype #include <sys/select.h> int select(i ...

1, Introduction to Rancher Rancher is a container management platform that helps organizations deploy and manage containers easily and quickly in a production environment. Rancher can easily manage kubernetes in various environments, meet IT needs and support DevOps teams. Kubernetes has not only become the standard for container orchestratio ...