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Heartbeat introduction
Official site: http://linux-ha.org/wiki/Main_Page
DRBD introduction
Official
Month: October 2021
SpringCloud System Introduction
SpringCloud system introduction Spring Cloud Netflix Netflix Eureka: Service Governance Component, including service registration and discovery Netflix Ribbon: service call component for client lo
Operation SLA level and hair relationship? !
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What is operation and maintenance? !
↓↓↓ p> The boss asks the operation and maintenance manager:
“How do I feel that your department does not play a big role in the operation of
Algorithm – What does the load factor of 0.75?
I see that the hash is implemented with a load factor of 0.75. What does this mean? This means that once the collection has enough elements to hold 3/4 of the capacity, the capacity will double.
Use the log4j record problem in the Flink cluster?
I have a program in which Log4j is used to record some information. When I test in IDE/Intellij, the log file can be generated successfully. And when I submit this task to flink independent cluster
SWARM container cluster management (introduction)
1. Introduction to Swarm
Swarm is a self-developed container cluster management system developed by Docker. Swarm existed as an independent service in the early days, in the Docker Engine Swa
WCF provides incorrect URL in WSDL behind the load balancer
I installed wcf on the web server cluster behind the load balancer.
The pubblic address is: http://externaldomain/mywcf.svc, It is the only endpoint that users should visit.
So, when I
Erlan distribution random number
One, function Generate Erlang distribution of random numbers.
The probability density function of the Erlang distribution is
\[ f( x)=\left\{\begin{matrix} \frac{\beta ^{-m}x^{m-1}}{(m-1)!}e
Protocol-Buffers – Best Practice for Determining Protocol Buffer Message Types
I need to serialize and deserialize a series of protocol buffer messages in the byte stream. There are some predetermined message types. What is the recommended way to encode type information so th
There are a lot of Fin_Wait2, Close_Wait, Last_Ack and Time_Wait in Haproxy
We are running haproxy for about 100,000 concurrent users. But we see a lot of FIN_WAIT2, CLOSE_WAIT, LAST_ACK and TIME_WAIT in the netstat output. This output is on the 8G ubuntu-12.04 node.