ApsaraDB for HBase Serverless Edition supports access through native HBase APIs. However, the following limits apply:
- Access from non-Java languages or Thrift is not supported.
- HBase system administration APIs are not supported.
ApsaraDB for HBase Serverless Edition does not support APIs for cluster management operations, such as assign region, flush, compaction, and stopRegionServer. You can perform daily cluster management tasks in the console or use the provided cluster management system.
- Coprocessors are not supported.
- Access to the underlying HDFS is not supported.
ApsaraDB for HBase Serverless Edition does not provide access to the underlying Hadoop Distributed File System (HDFS). Data import and export features will be added in the future. Spark-based analysis is also not supported at this time.
- Custom filters are not supported.
Custom filters are user-implemented filter classes that are encapsulated into JAR files. These files are then uploaded to the HBase classpath or HDFS and activated by restarting HBase or using dynamic loading. ApsaraDB for HBase Serverless Edition does not support this method.
- Phoenix SQL and Solr are not currently supported.
ApsaraDB for HBase Serverless Edition does not provide support for Phoenix or Solr.
- Request limits.
- Maximum request size: 2 MB.
- Maximum scan request size: 4 MB.
- Maximum batch size for batch operations: 100.
- Maximum table name length: 128 KB.
- Maximum namespace length: 128 KB.
- Maximum column family (cf) length: 32 KB.
- Maximum number of initial regions when creating a table: 64.
- Maximum number of global tables per instance: 64.
- Maximum number of namespaces per instance: 5.