Cluster
Instances of the same type have different memory specifications. You can select instances of different specifications based on application scenarios.
This section describes cluster instance specifications. The instance specifications depend on the selected CPU model.
The default maximum number of connections has been adjusted. Query the number of connections based on the instance creation time. For details about the number of connections for instances created before July 2021, see Historical Node Specifications.
Node Specifications
DDS cluster instances have two specification types: general-purpose and enhanced II. For details, see Table 1.
|
Specification Type |
Description |
Applicable Scenario |
|---|---|---|
|
General-purpose |
CPU resources are shared with other general-purpose DB instances on the same physical machine. CPU usage is maximized through resource overcommitment. This instance class is a cost-effective option and suitable for scenarios where performance stability is not critical. |
Suitable for scenarios that have high requirements on cost-effectiveness. |
|
Enhanced II |
With a leading network acceleration engine and Data Plane Development Kit (DPDK) fast packet processing mechanism, this instance class provides higher network performance and computing power. |
Suitable for websites and web applications that require high database computing and network performance. |
|
CPU Type |
Specifications |
vCPUs |
Memory (GB) |
Flavor ID |
Default Maximum Number of Connections |
Range of Connections |
|---|---|---|---|---|---|---|
|
x86 |
Enhanced II |
2 |
4 |
dds.mongodb.c6.large.2.config |
2000 |
200-2000 |
|
2 |
16 |
dds.mongodb.c6.large.8.config |
2000 |
200-2000 |
||
|
4 |
32 |
dds.mongodb.c6.xlarge.8.config |
4000 |
200-4000 |
||
|
8 |
64 |
dds.mongodb.c6.2xlarge.8.config |
16000 |
200-16000 |
||
|
Kunpeng |
- |
2 |
4 |
dds.mongodb.large.arm2.config |
2000 |
200-2000 |
|
4 |
8 |
dds.mongodb.xlarge.arm2.config |
4000 |
200-4000 |
||
|
8 |
16 |
dds.mongodb.2xlarge.arm2.config |
16000 |
200-16000 |
|
CPU Type |
Specifications |
Component |
vCPUs |
Memory (GB) |
Flavor ID |
Default Maximum Number of Connections |
Range of Connections |
|---|---|---|---|---|---|---|---|
|
x86 |
General-purpose |
dds mongos |
1 |
4 |
dds.mongodb.s6.medium.4.mongos |
1000 |
200-1000 |
|
2 |
4 |
dds.mongodb.s6.large.2.mongos |
2000 |
200-2000 |
|||
|
2 |
8 |
dds.mongodb.s6.large.4.mongos |
2000 |
200-2000 |
|||
|
4 |
8 |
dds.mongodb.s6.xlarge.2.mongos |
4000 |
200-4000 |
|||
|
4 |
16 |
dds.mongodb.s6.xlarge.4.mongos |
4000 |
200-4000 |
|||
|
8 |
16 |
dds.mongodb.s6.2xlarge.2.mongos |
16000 |
200-16000 |
|||
|
8 |
32 |
dds.mongodb.s6.2xlarge.4.mongos |
16000 |
200-16000 |
|||
|
shard |
1 |
4 |
dds.mongodb.s6.medium.4.shard |
1000 |
200-1000 |
||
|
2 |
4 |
dds.mongodb.s6.large.2.shard |
2000 |
200-2000 |
|||
|
2 |
8 |
dds.mongodb.s6.large.4.shard |
2000 |
200-2000 |
|||
|
4 |
8 |
dds.mongodb.s6.xlarge.2.shard |
4000 |
200-4000 |
|||
|
4 |
16 |
dds.mongodb.s6.xlarge.4.shard |
4000 |
200-4000 |
|||
|
8 |
16 |
dds.mongodb.s6.2xlarge.2.shard |
16000 |
200-16000 |
|||
|
8 |
32 |
dds.mongodb.s6.2xlarge.4.shard |
16000 |
200-16000 |
|||
|
Enhanced II |
dds mongos |
1 |
8 |
dds.mongodb.c6.medium.8.mongos |
1000 |
200-1000 |
|
|
2 |
8 |
dds.mongodb.c6.large.4.mongos |
2000 |
200-2000 |
|||
|
2 |
16 |
dds.mongodb.c6.large.8.mongos |
2000 |
200-2000 |
|||
|
4 |
16 |
dds.mongodb.c6.xlarge.4.mongos |
4000 |
200-4000 |
|||
|
4 |
32 |
dds.mongodb.c6.xlarge.8.mongos |
4000 |
200-4000 |
|||
|
8 |
32 |
dds.mongodb.c6.2xlarge.4.mongos |
16000 |
200-16000 |
|||
|
8 |
64 |
dds.mongodb.c6.2xlarge.8.mongos |
16000 |
200-16000 |
|||
|
16 |
64 |
dds.mongodb.c6.4xlarge.4.mongos |
16000 |
200-16000 |
|||
|
16 |
128 |
dds.mongodb.c6.4xlarge.8.mongos |
16000 |
200-16000 |
|||
|
32 |
128 |
dds.mongodb.c6.8xlarge.4.mongos |
16000 |
200-16000 |
|||
|
32 |
256 |
dds.mongodb.c6.8xlarge.8.mongos |
16000 |
200-16000 |
|||
|
64 |
256 |
dds.mongodb.c6.16xlarge.4.mongos |
16000 |
200-16000 |
|||
|
64 |
512 |
dds.mongodb.c6.16xlarge.8.mongos |
16000 |
200-16000 |
|||
|
shard |
1 |
8 |
dds.mongodb.c6.medium.8.shard |
1000 |
200-1000 |
||
|
2 |
8 |
dds.mongodb.c6.large.4.shard |
2000 |
200-2000 |
|||
|
2 |
16 |
dds.mongodb.c6.large.8.shard |
2000 |
200-2000 |
|||
|
4 |
16 |
dds.mongodb.c6.xlarge.4.shard |
4000 |
200-4000 |
|||
|
4 |
32 |
dds.mongodb.c6.xlarge.8.shard |
4000 |
200-4000 |
|||
|
8 |
32 |
dds.mongodb.c6.2xlarge.4.shard |
16000 |
200-16000 |
|||
|
8 |
64 |
dds.mongodb.c6.2xlarge.8.shard |
16000 |
200-16000 |
|||
|
16 |
64 |
dds.mongodb.c6.4xlarge.4.shard |
16000 |
200-16000 |
|||
|
16 |
128 |
dds.mongodb.c6.4xlarge.8.shard |
16000 |
200-16000 |
|||
|
32 |
128 |
dds.mongodb.c6.8xlarge.4.shard |
16000 |
200-16000 |
|||
|
32 |
256 |
dds.mongodb.c6.8xlarge.8.shard |
16000 |
200-16000 |
|||
|
64 |
256 |
dds.mongodb.c6.16xlarge.4.shard |
16000 |
200-16000 |
|||
|
64 |
512 |
dds.mongodb.c6.16xlarge.8.shard |
16000 |
200-16000 |
|||
|
Kunpeng |
- |
dds mongos |
2 |
4 |
dds.mongodb.large.arm2.mongos |
2000 |
200-2000 |
|
- |
2 |
8 |
dds.mongodb.large.arm4.mongos |
2000 |
200-2000 |
||
|
- |
4 |
8 |
dds.mongodb.xlarge.arm2.mongos |
4000 |
200-4000 |
||
|
- |
4 |
16 |
dds.mongodb.xlarge.arm4.mongos |
4000 |
200-4000 |
||
|
- |
8 |
16 |
dds.mongodb.2xlarge.arm2.mongos |
16000 |
200-16000 |
||
|
- |
8 |
32 |
dds.mongodb.2xlarge.arm4.mongos |
16000 |
200-16000 |
||
|
- |
16 |
32 |
dds.mongodb.4xlarge.arm2.mongos |
16000 |
200-16000 |
||
|
- |
16 |
64 |
dds.mongodb.4xlarge.arm4.mongos |
16000 |
200-16000 |
||
|
- |
shard |
2 |
4 |
dds.mongodb.large.arm2.shard |
2000 |
200-2000 |
|
|
- |
2 |
8 |
dds.mongodb.large.arm4.shard |
2000 |
200-2000 |
||
|
- |
4 |
8 |
dds.mongodb.xlarge.arm2.shard |
4000 |
200-4000 |
||
|
- |
4 |
16 |
dds.mongodb.xlarge.arm4.shard |
4000 |
200-4000 |
||
|
- |
8 |
16 |
dds.mongodb.2xlarge.arm2.shard |
16000 |
200-16000 |
||
|
- |
8 |
32 |
dds.mongodb.2xlarge.arm4.shard |
16000 |
200-16000 |
||
|
- |
16 |
32 |
dds.mongodb.4xlarge.arm2.shard |
16000 |
200-16000 |
||
|
- |
16 |
64 |
dds.mongodb.4xlarge.arm4.shard |
16000 |
200-16000 |
Historical Node Specifications
For details about the range of connections of instances created before July 2021, see the following table.
|
Instance Type |
CPU Type |
Specifications |
vCPUs |
Memory (GB) |
Flavor ID |
Default Maximum Number of Connections |
Range of Connections |
|---|---|---|---|---|---|---|---|
|
Cluster |
x86 |
General-purpose |
2 |
4 |
dds.mongodb.s6.large.2.config |
400 |
200-2000 |
|
Enhanced |
2 |
4 |
dds.mongodb.c3.large.2.config |
||||
|
Enhanced II |
2 |
4 |
dds.mongodb.c6.large.2.config |
||||
|
Kunpeng |
- |
2 |
4 |
dds.mongodb.large.arm2.config |
|
Instance Type |
CPU Type |
Specifications |
Component |
vCPUs |
Memory (GB) |
Flavor ID |
Default Maximum Number of Connections |
Range of Connections |
|---|---|---|---|---|---|---|---|---|
|
Cluster |
x86 |
General-purpose |
dds mongos |
1 |
4 |
dds.mongodb.s6.medium.4.mongos |
400 |
200-1000 |
|
2 |
4 |
dds.mongodb.s6.large.2.mongos |
400 |
200-2000 |
||||
|
2 |
8 |
dds.mongodb.s6.large.4.mongos |
400 |
200-2000 |
||||
|
4 |
8 |
dds.mongodb.s6.xlarge.2.mongos |
1000 |
200-4000 |
||||
|
4 |
16 |
dds.mongodb.s6.xlarge.4.mongos |
1000 |
200-4000 |
||||
|
8 |
16 |
dds.mongodb.s6.2xlarge.2.mongos |
4000 |
200-16000 |
||||
|
8 |
32 |
dds.mongodb.s6.2xlarge.4.mongos |
4000 |
200-16000 |
||||
|
shard |
1 |
4 |
dds.mongodb.s6.medium.4.shard |
400 |
200-1000 |
|||
|
2 |
4 |
dds.mongodb.s6.large.2.shard |
400 |
200-2000 |
||||
|
2 |
8 |
dds.mongodb.s6.large.4.shard |
400 |
200-2000 |
||||
|
4 |
8 |
dds.mongodb.s6.xlarge.2.shard |
1000 |
200-4000 |
||||
|
4 |
16 |
dds.mongodb.s6.xlarge.4.shard |
1000 |
200-4000 |
||||
|
8 |
16 |
dds.mongodb.s6.2xlarge.2.shard |
4000 |
200-16000 |
||||
|
8 |
32 |
dds.mongodb.s6.2xlarge.4.shard |
4000 |
200-16000 |
||||
|
Enhanced |
dds mongos |
2 |
8 |
dds.mongodb.c3.large.4.mongos |
400 |
200-2000 |
||
|
4 |
16 |
dds.mongodb.c3.xlarge.4.mongos |
1000 |
200-4000 |
||||
|
8 |
32 |
dds.mongodb.c3.2xlarge.4.mongos |
4000 |
200-16000 |
||||
|
16 |
64 |
dds.mongodb.c3.4xlarge.4.mongos |
8000 |
200-16000 |
||||
|
32 |
128 |
dds.mongodb.c3.8xlarge.4.mongos |
8000 |
200-16000 |
||||
|
60 |
256 |
dds.mongodb.c3.15xlarge.4.mongos |
8000 |
200-16000 |
||||
|
shard |
2 |
8 |
dds.mongodb.c3.large.4.shard |
400 |
200-2000 |
|||
|
4 |
16 |
dds.mongodb.c3.xlarge.4.shard |
1000 |
200-4000 |
||||
|
8 |
32 |
dds.mongodb.c3.2xlarge.4.shard |
4000 |
200-16000 |
||||
|
16 |
64 |
dds.mongodb.c3.4xlarge.4.shard |
8000 |
200-16000 |
||||
|
32 |
128 |
dds.mongodb.c3.8xlarge.4.shard |
8000 |
200-16000 |
||||
|
60 |
256 |
dds.mongodb.c3.15xlarge.4.shard |
8000 |
200-16000 |
||||
|
Enhanced II |
dds mongos |
2 |
8 |
dds.mongodb.c6.large.4.mongos |
400 |
200-2000 |
||
|
4 |
16 |
dds.mongodb.c6.xlarge.4.mongos |
1000 |
200-4000 |
||||
|
8 |
32 |
dds.mongodb.c6.2xlarge.4.mongos |
4000 |
200-16000 |
||||
|
16 |
64 |
dds.mongodb.c6.4xlarge.4.mongos |
8000 |
200-16000 |
||||
|
32 |
128 |
dds.mongodb.c6.8xlarge.4.mongos |
8000 |
200-16000 |
||||
|
64 |
256 |
dds.mongodb.c6.16xlarge.4.mongos |
8000 |
200-16000 |
||||
|
shard |
2 |
8 |
dds.mongodb.c6.large.4.shard |
400 |
200-2000 |
|||
|
4 |
16 |
dds.mongodb.c6.xlarge.4.shard |
1000 |
200-4000 |
||||
|
8 |
32 |
dds.mongodb.c6.2xlarge.4.shard |
4000 |
200-16000 |
||||
|
16 |
64 |
dds.mongodb.c6.4xlarge.4.shard |
8000 |
200-16000 |
||||
|
32 |
128 |
dds.mongodb.c6.8xlarge.4.shard |
8000 |
200-16000 |
||||
|
64 |
256 |
dds.mongodb.c6.16xlarge.4.shard |
8000 |
200-16000 |
||||
|
Kunpeng |
- |
dds mongos |
2 |
4 |
dds.mongodb.large.arm2.mongos |
400 |
200-2000 |
|
|
- |
2 |
8 |
dds.mongodb.large.arm4.mongos |
400 |
200-2000 |
|||
|
- |
4 |
8 |
dds.mongodb.xlarge.arm2.mongos |
1000 |
200-4000 |
|||
|
- |
4 |
16 |
dds.mongodb.xlarge.arm4.mongos |
1000 |
200-4000 |
|||
|
- |
8 |
16 |
dds.mongodb.2xlarge.arm2.mongos |
4000 |
200-16000 |
|||
|
- |
8 |
32 |
dds.mongodb.2xlarge.arm4.mongos |
4000 |
200-16000 |
|||
|
- |
16 |
32 |
dds.mongodb.4xlarge.arm2.mongos |
8000 |
200-16000 |
|||
|
- |
16 |
64 |
dds.mongodb.4xlarge.arm4.mongos |
8000 |
200-16000 |
|||
|
- |
shard |
2 |
4 |
dds.mongodb.large.arm2.shard |
400 |
200-2000 |
||
|
- |
2 |
8 |
dds.mongodb.large.arm4.shard |
400 |
200-2000 |
|||
|
- |
4 |
8 |
dds.mongodb.xlarge.arm2.shard |
1000 |
200-4000 |
|||
|
- |
4 |
16 |
dds.mongodb.xlarge.arm4.shard |
1000 |
200-4000 |
|||
|
- |
8 |
16 |
dds.mongodb.2xlarge.arm2.shard |
4000 |
200-16000 |
|||
|
- |
8 |
32 |
dds.mongodb.2xlarge.arm4.shard |
4000 |
200-16000 |
|||
|
- |
16 |
32 |
dds.mongodb.4xlarge.arm2.shard |
8000 |
200-16000 |
|||
|
- |
16 |
64 |
dds.mongodb.4xlarge.arm4.shard |
8000 |
200-16000 |
Helpful Links
- How do I change the maximum number of connections of a cluster instance?
You can change the maximum number of connections to a DB instance by modifying the net.maxIncomingConnections parameter. For details about how to change parameter values, see Editing a Parameter Template.
- How do I purchase a cluster instance?
For details, see Buying a Cluster Instance.
- How do I change the CPU or memory of a cluster instance?
You can change the CPU and memory of dds mongos and shards nodes. For details, see Changing the CPU and Memory of a Cluster Instance.
- How do I scale up the storage space of a cluster instance?
You can scale up the storage of shards nodes. For details, see Scaling Up Storage.
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