sounds good！ +1 Goson zhang <[email protected]> 于2020年12月8日周二 上午10:30写道：
> Yesterday there was a business consultation, how reliable is the TubeMQ > system? > > I understand that the system reliability is divided into two parts, one is > the reliability of the system services, and the other is the data > reliability: > > System reliability: > 1.1 As long as any one of the Brokers survive allocated by the topic in the > cluster, the production and consumption services of the topic are > available; > 1.2 Based on point 1.1, as long as all topics in the cluster have any > Broker alive, the topic of the entire cluster is available for production > and consumption services; > 1.3 Even if the control node Masters all hangs up, the new production and > consumption in the cluster will be affected, but the registered production > and consumption will not stop production and consumption; > > Data reliability: > In the TubeMQ system, data is stored in a single-node disk RAID10 copy > mode, data may be lost only under the following conditions: > 2.1 When the machine is powered off, the data that has been successfully > replied but not consumed yet and is in the memory will be lost; after the > machine is online, the stored data will not be affected; > 2.2 Disk abnormalities that cannot be held by RAID10 hold, data that has > returned successfully but not yet consumed will be affected; after the disk > is repaired, data that has been stored but not recovered will be affected > 2.3 Daily bad disks, the production and consumption of broken disk Broker > nodes will not be affected. > > Related quantitative reliability indicators, I personally feel that it is > not easy to evaluate, it is related to the hardware situation and the IDC > environment, but there is an application situation for reference: according > to the statistics in our environment in 2019, the entire TubeMQ cluster > 1500 machines are about 40 in the whole year which ping abnormalities and > abnormal disk group damage that cannot be held by RAID10. At the same time, > the machines we use are second-hand machines and equipment that have been > eliminated after several years of business use. > > Thanks >
