HBase can support one hundred TB of data size, millisecond response under the pressure of millions of QPS for risk control and other online recommendation scenes at big data background. Ali cloud HBase a number of financial services, advertising, media-business risk control and recommended continuing the availability, low latency, optimized low-cost direction. Currently 99.9% availability commitment single cluster, the request can be done SSD models burr 99.5% <50ms, and the new line in the table to accelerate the separation of hot and cold thermal data access performance, reduce costs and cold data stored in the API transparent to the user . To further meet customer demands on availability and low latency, Ali cloud HBase will provide to standby architecture as a platform to redundancy, concurrency, isolation, demotion and other support services for the full range of high-availability solutions, to provide objective 99.99% availability, 99.9% request is less than 50ms. Currently a high availability project has been completed, the paper describes the architecture as well as a key standby switching capability.
HBase single cluster availability
HBase system includes a Zookeeper, HDFS