HBase
Introduction to HBase
HBase is a column-oriented distributed cloud storage system that features enhanced reliability, excellent performance, and elastic scalability. It applies to the storage of massive amounts of data and distributed computing. You can use HBase to build a storage system capable of storing terabytes to petabytes of data. With HBase, you can filter and analyze data with ease and get responses in milliseconds, rapidly mining data value.
HBase applies to the following scenarios:
- Mass data storage
HBase applies to TB- or even PB-level data storage and provides dynamic scaling capabilities so that you can adjust cluster resources to meet specific performance or capacity requirements.
- Real-time query
The columnar and key-value storage models apply to the ad-hoc query of enterprise user details. The primary key–based low-latency point query reduces the response latency to seconds or even milliseconds, facilitating real-time data analysis.
For details about HBase architecture and principles, visit https://hbase.apache.org/book.html.
HBase Cluster Management Functions
CloudTable is a distributed and scalable key-value data storage service on the cloud. CloudTable provides the following functions of HBase cluster management on the web-based console:
- Creating a cluster: You can create a cluster on the CloudTable console. You can select the computing and storage separation architecture and dynamically adjust computing resources to reduce costs.
- Managing a cluster: You can manage a created cluster.
- Metric monitoring: The system collects monitoring data during cluster running, reports the data to Cloud Eye (CES), and displays the cluster running status in graphics. When a metric is spotted as abnormal, a message is sent for notification so that users and administrators can handle this problem in a timely manner.
- Deleting a cluster: You can delete a cluster that is no longer needed. This is a high-risk operation. Deleting a cluster may cause data loss. Therefore, before deleting a cluster, ensure that no service is running and all data has been saved.
- Restarting a cluster: You need to restart a cluster if HBase parameters of this cluster have been modified or the system runs slowly due to long-time running. Restart may cause data loss in running services. If you have to restart a cluster, ensure that there is no running service and all data has been saved.
- Querying alarms: If either the system or a cluster is faulty, CloudTable will collect fault information and report it to the network management system. Maintenance personnel will then be able to locate the faults.
- Querying logs: Cluster, job, and configuration operations are recorded, helping locate faults in case of cluster operating exceptions.
Advantages
- Native HBase APIs: CloudTable HBase is designed to be compatible with native HBase APIs, ensuring high availability of the architecture through the separation of computing and storage for enhanced reliability, along with in-depth kernel optimization.
- Ease of use: Secondary indexes are supported to meet non-primary key query requirements.
- Stability and Reliability: CloudTable HBase provides stable and reliable performance through hotspot diagnosis and self-healing mechanism.
- Visualized monitoring and O&M: CloudTable HBase offers visualized monitoring and user-defined alarm rules, simplifying system operation and maintenance.
- Introduction to HBase
- HBase Cluster Management Functions
- Advantages