配置独立分片扩展

atlas setup --clusterName symmetricShardCluster --provider AWS --autoScalingMode clusterWideScaling --projectId 5e2211c17a3e5a48f5497de3 --tier M10

对于配置了 clusterWideScaling 的集群，JSON 输出如下所示：

{
"clusterType": "SHARDED",
"name": "symmetricShardCluster",
"diskSizeGB": 0,
"replicationSpecs": [
{
"id": "internalId",
"numShards": 2,
"regionConfigs": [
{
"electableSpecs": { ... },
"readOnlySpecs": { ... },
...
}
],
"zoneName": "string"
}
],
...
}

To learn more about the output, see the getCluster endpoint. If you omit the --autoScalingMode option, the command defaults to clusterWideScaling mode.

atlas setup --clusterName asymmetricShardCluster --provider AWS --autoScalingMode independentShardScaling --projectId 5e2211c17a3e5a48f5497de3 --tier M10

对于配置了 independentShardScaling 的集群，JSON 输出如下所示：

{
"clusterType": "SHARDED",
"name": "asymmetricShardCluster",
"replicationSpecs": [
{
"id": "externalId",
"regionConfigs": [
{
"electableSpecs": {
"diskSizeGB": 10,
...
},
"readOnlySpecs":  {
"diskSizeGB": 10,
...
},
}
],
"zoneId": "string",// for GET/UPDATE
"zoneName": "string"
},
...
]
}

The JSON output includes the replicationSpecs object that describes the properties of a single shard. The replicationSpecs elements define the number of shards instead of the numShards field. The diskSizeGB field is inside each shard's replication_specs.regionConfig object. The zoneId field that identifies the zone for Global cluster is returned in the output. To learn more about the output, see the getCluster endpoint.

要将使用独立分片扩展的分片集群恢复为集群范围的扩展，请执行以下步骤：

{
  "replicationSpecs": [
    {
      "id": "SHARD_ID_0",
      "regionConfigs": [
        {
          "providerName": "AWS",
          "regionName": "US_EAST_1",
          "zoneName": "Zone1",
          "electableSpecs": {
            "instanceSize": "M60",
            "nodeCount": 3,
            "diskSizeGB": 2048,
            "ebsVolumeType": "PROVISIONED",
            "diskIOPS": 4000
          },
          "readOnlySpecs": {
            . . .
          },
          "analyticsSpecs": {
            . . .
          }
        }
      ]
    },
    {
      "id": "SHARD_ID_1",
      "regionConfigs": [
        . . .
      ]
    },
      . . .
  ]
}

调整分片大小以恢复对称性后，您可以恢复使用 2024-10-23 API资源版本。此版本依赖于对称 replicationSpecs.numShards model。