This topic describes the ApsaraDB for Redis instances that are phased out. If you have purchased these instances, you can continue to use them. The following table lists the maximum number of connections, maximum bandwidth, and queries per second (QPS) reference value for these instances.
Standard zone-disaster recovery instances of Community Edition
| Instance type | InstanceClass value (used in API operations) | Maximum number of new connections per second | Maximum number of connections | Maximum bandwidth (MB/s) | QPS reference value |
|---|---|---|---|---|---|
| 1 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb1g.1db.0rodb.4proxy.default | 10000 | 10000 | 10 | 80000 |
| 2 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb2g.1db.0rodb.4proxy.default | 10000 | 10000 | 16 | 80000 |
| 4 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb4g.1db.0rodb.4proxy.default | 10000 | 10000 | 24 | 80000 |
| 8 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb8g.1db.0rodb.4proxy.default | 10000 | 10000 | 24 | 80000 |
| 16 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb16g.1db.0rodb.4proxy.default | 10000 | 10000 | 32 | 80000 |
| 32 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb32g.1db.0rodb.4proxy.default | 10000 | 10000 | 32 | 80000 |
| 64 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb64g.1db.0rodb.4proxy.default | 10000 | 10000 | 48 | 80000 |
Master-replica cluster instances of Community Edition
| Instance type | InstanceClass value (used in API operations) | Number of shards | Maximum number of new connections per second | Maximum number of connections | Maximum bandwidth (MB/s) | QPS reference value |
|---|---|---|---|---|---|---|
| 1 GB cluster instance (2 shards) | redis.logic.sharding.512m.2db.0rodb.4proxy.default | 2 | 20000 | 20000 | 48 | 200000 |
| 1 GB cluster instance (4 shards) | redis.logic.sharding.256m.4db.0rodb.4proxy.default | 4 | 40000 | 40000 | 96 | 400000 |
| 2 GB cluster instance (4 shards) | redis.logic.sharding.512m.4db.0rodb.4proxy.default | 4 | 40000 | 40000 | 96 | 400000 |
| 2 GB cluster instance (8 shards) | redis.logic.sharding.256m.8db.0rodb.8proxy.default | 8 | 50000 | 80000 | 192 | 800000 |
| 4 GB cluster instance (8 shards) | redis.logic.sharding.512m.8db.0rodb.8proxy.default | 8 | 50000 | 80000 | 192 | 800000 |
| 4 GB cluster instance (16 shards) | redis.logic.sharding.256m.16db.0rodb.16proxy.default | 16 | 50000 | 160000 | 384 | 1600000 |
| 8 GB cluster instance (16 shards) | redis.logic.sharding.512m.16db.0rodb.16proxy.default | 16 | 50000 | 160000 | 384 | 1600000 |
| 8 GB cluster instance (32 shards) | redis.logic.sharding.256m.32db.0rodb.32proxy.default | 32 | 50000 | 320000 | 768 | 3200000 |
| 16 GB cluster instance (32 shards) | redis.logic.sharding.512m.32db.0rodb.32proxy.default | 32 | 50000 | 320000 | 768 | 3200000 |
| 16 GB cluster instance | redis.sharding.small.default | 8 | 50000 | 80000 | 768 | 640000 |
| 32 GB cluster instance | redis.sharding.mid.default | 8 | 50000 | 80000 | 768 | 640000 |
| 64 GB cluster instance | redis.sharding.large.default | 8 | 50000 | 80000 | 768 | 640000 |
| 128 GB cluster instance | redis.sharding.2xlarge.default | 16 | 50000 | 160000 | 1536 | 1280000 |
| 256 GB cluster instance | redis.sharding.4xlarge.default | 16 | 50000 | 160000 | 1536 | 1280000 |
| 512 GB cluster instance | redis.sharding.8xlarge.default | 32 | 50000 | 320000 | 2048 | 2560000 |
Zone-disaster recovery cluster instances of Community Edition
| Instance type | InstanceClass value (used in API operations) | Number of shards | Maximum number of new connections per second | Maximum number of connections | Maximum bandwidth (MB/s) | QPS reference value |
|---|---|---|---|---|---|---|
| 16 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb16g.8db.0rodb.8proxy.default | 8 | 50000 | 80000 | 768 | 640000 |
| 32 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb32g.8db.0rodb.8proxy.default | 8 | 50000 | 80000 | 768 | 640000 |
| 64 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb64g.8db.0rodb.8proxy.default | 8 | 50000 | 80000 | 768 | 640000 |
| 128 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb128g.16db.0rodb.16proxy.default | 16 | 50000 | 160000 | 1536 | 1280000 |
| 256 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb256g.16db.0rodb.16proxy.default | 16 | 50000 | 160000 | 1536 | 1280000 |
| 512 GB zone-disaster recovery cluster instance | redis.logic.sharding.drredismdb512g.32db.0rodb.32proxy.default | 32 | 50000 | 320000 | 2048 | 2560000 |
Calculation rules for bandwidth values
- The bandwidth value in the preceding table is the bandwidth of the instance. The bandwidth value is the sum of the bandwidth of all shards or nodes in the instance.
- The upper limit of the total bandwidth for a read/write splitting instance is 2,048 MB/s. After the upper limit is reached, the bandwidth cannot be increased even if you add more shards or nodes to the read/write splitting instance.
- The bandwidth value applies to the upstream and downstream bandwidths. For example,
if the bandwidth of an instance is 10 MB/s, the upstream and downstream bandwidths
of the instance are both 10 MB/s.
Note If your instance has unexpected or scheduled traffic peaks, you can adjust the bandwidth of the instance as needed. For more information, see Adjust the bandwidth of an ApsaraDB for Redis instance.
- The bandwidth value in the preceding table is the internal bandwidth of the ApsaraDB for Redis instance. The Internet bandwidth is determined by the internal bandwidth and is limited by the bandwidth of the connection between the ApsaraDB for Redis instance and the client. We recommend that you connect to the instance over an internal network to maximize performance.
Calculation rules for connections
The following example shows how the maximum number of new connections per second affects the maximum number of connections at a specific second: The maximum number of new connections per second of an instance is 10,000. The maximum number of connections of the instance is 50,000. The actual number of connections at the Nth second after the instance starts to run is 12,000. Then, at the (N+1)th second, the maximum number of connections is 22,000, which is calculated by using the following formula: 12,000 + 10,000.
FAQ
Q: Zone-disaster recovery instances of ApsaraDB for Redis are phased out. How can I create a zone-disaster recovery instance when I use ApsaraDB for Redis?
A: Zone-disaster recovery instances of ApsaraDB for Redis are upgraded. To use the
zone-disaster recovery feature, you can select a zone that supports zone-disaster
recovery when you create an ApsaraDB for Redis instance. 