Shared clusters are highly cost-effective. You can share resources with others. This type of clusters is applicable to testing and scenarios that require lightweight resources.
Exclusive clusters are applicable to services in the production environment and scenarios that require a large number of storage and computing resources and quality search results.
Pricing comparison
For more information about pricing, see Overview.
Comparison of limits on configurations
Feature | Item | Shared cluster | Exclusive cluster |
Search | Maximum length of each clause, except FILTER clauses | 1 KB before encoding | Customizable. If you want to customize this setting, contact Alibaba Cloud technical support. |
Maximum length of each FILTER clause | 4 KB before encoding | Customizable. If you want to customize this setting, contact Alibaba Cloud technical support. | |
Maximum number of results retrieved by a search | 5,000 | Customizable. If you want to customize this setting, contact Alibaba Cloud technical support. | |
Number of documents that are roughly sorted | 1,000,000 | Customizable. If you want to customize this setting, contact Alibaba Cloud technical support. | |
Number of documents that are finely sorted | The default number is 200. | Customizable. If you want to customize this setting, contact Alibaba Cloud technical support. | |
Accurate statistics by AGGREGATE clauses | Accuracy is ensured for less than 100,000 documents. | Accuracy can be ensured even for more than 100,000 documents. (Note: the KVPAIRS clause must contain enable_accurate_statistics:true, which is used to enable accurate statistics.) | |
Online JOIN operation on multiple tables | Not supported | Supported only for storage-optimized exclusive clusters | |
SQL syntax | Not supported | Supported only for storage-optimized exclusive clusters | |
Sort policy | Sort policy configuration | Rough sort and fine sort | Rough sort and fine sort |
Type of rough sort | Weight expression | Weight and formula expressions | |
Maximum number of sort policies | 30 | 50 | |
Advanced custom sort plug-in Cava | Not supported | Supported | |
Cluster creation and scaling | Creation | You can directly create a cluster. | You must create a cluster separately. If you want to create more clusters than the quota for automatic deployment sets, contact Alibaba Cloud technical support. |
Scaling | Flexible scaling | You must create a cluster separately. If you want to create more clusters than the quota for automatic deployment sets, contact Alibaba Cloud technical support. | |
Industry template | Industry Algorithm Edition for E-commerce | Not supported | Not supported |
Industry Algorithm Edition for education | Not supported | Not supported | |
Industry Algorithm Edition for gaming | Not supported | Not supported | |
Industry Algorithm Edition for content community | Not supported | Not supported |
Performance comparison
Feature | Item | Shared cluster | Exclusive cluster |
Data synchronization | Total data size of API requests per second | 2 MB | The default total data size of API requests per second is 15 MB. If you want to customize this setting, contact Alibaba Cloud technical support. |
Maximum rate for synchronizing incremental data from ApsaraDB RDS and PolarDB data sources | 2 MB/s | The maximum rate is 15 MB/s by default. If you want to customize this setting, contact Alibaba Cloud technical support. | |
Retrieval | Execution time | Milliseconds | Milliseconds |