This article lists the different cluster forms of TDMQ Pulsar and the limitations on some indicators and performance. Please ensure not to exceed the limit values during use to avoid anomalies.
Note:
For the difference comparison between virtual clusters and exclusive clusters, please refer to Product Selection.
Cluster
Limit Type | Professional Cluster | Virtual Clusters |
Single-region cluster cap | No limit | 5 |
Cluster-level TPS (send + receive) | Depending on cluster specifications | 10000 |
Cluster-level peak bandwidth (send + receive) | Depending on cluster specifications | 180 MB/s |
Cluster name length | No more than 128 characters | No more than 128 characters |
Maximum Storage Capacity | 20 TB | 100GB |
Number of connections for a single Broker | Default 100000, adjustable by specification | 100000 |
Limitation per IP of Broker | Default 200, adjustable by specification | 200 |
Namespace
Limit Type | Professional Cluster | Virtual Clusters |
Single-cluster namespace cap | Depends on cluster specification | 100 |
Topic
Limit Type | Professional Cluster | Virtual Clusters |
Single-cluster topic cap | Depends on cluster specification | 1000 |
Max partitions per topic | 32 | 32 |
Topic name length | No more than 128 characters | No more than 128 characters |
Max Production TPS Per Topic Partition | Default 5000, adjustable by cluster specification | 5000 |
Max Production Bandwidth Per Topic Partition | Default 50 Mbps, adjustable by cluster specification | 40 Mbps |
Max Consumption TPS for Single Topic Partition | Default 10,000, adjustable by cluster specification | 5000 |
Max Consumption Bandwidth Per Topic Partition | Default 50 Mbps, adjustable by cluster specification | 40 Mbps |
Max producers per topic partition | 1000 | 1000 |
Limitation per IP of producer | Default 200, adjustable by cluster specification | 200 |
Max subscriptions per topic | Default 2,000, adjustable by cluster specification | 2000 |
Max number of consumers per subscription per topic partition | 1000 | 1000 |
Max number of consumers per topic partition | 2000 | 2000 |
Max empty messages for a single topic subscription | 10,000, adjustable by cluster specification | 1000 |
Heaped message size per topic | No additional limitations | 10GB |
Message
Limit Type | Professional Cluster | Virtual Clusters |
Maximum message retention time | 15 days | 15 days |
Maximum message delay | 10 days | 10 days |
Message size cap | 5MB | 5MB |
Consumer offset reset | 15 days | 15 days |
Maximum number of received but unacknowledged messages | Default 5000, adjustable by cluster specification | 5000 |
Maximum number of messages queried at a time | 65,536 entries | 65,536 |