我正在尝试使用 Azure 数据工厂 (v2) 备份我的 Cosmos Db 存储。一般来说，它正在做它的工作，但我想让 Cosmos 集合中的每个文档对应于 blob 存储中的新 json 文件。
使用下一个复制参数，我可以将集合中的所有文档复制到 azure blob 存储中的 1 个文件中：
{
"name": "ForEach_mih",
"type": "ForEach",
"typeProperties": {
"items": {
"value": "@pipeline().parameters.cw_items",
"type": "Expression"
},
"activities": [
{
"name": "Copy_mih",
"type": "Copy",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false
},
"userProperties": [
{
"name": "Source",
"value": "@{item().source.collectionName}"
},
{
"name": "Destination",
"value": "cosmos-backup-v2/@{item().destination.fileName}"
}
],
"typeProperties": {
"source": {
"type": "DocumentDbCollectionSource",
"nestingSeparator": "."
},
"sink": {
"type": "BlobSink"
},
"enableStaging": false,
"enableSkipIncompatibleRow": true,
"redirectIncompatibleRowSettings": {
"linkedServiceName": {
"referenceName": "Clear_Test_BlobStorage",
"type": "LinkedServiceReference"
},
"path": "cosmos-backup-logs"
},
"cloudDataMovementUnits": 0
},
"inputs": [
{
"referenceName": "SourceDataset_mih",
"type": "DatasetReference",
"parameters": {
"cw_collectionName": "@item().source.collectionName"
}
}
],
"outputs": [
{
"referenceName": "DestinationDataset_mih",
"type": "DatasetReference",
"parameters": {
"cw_fileName": "@item().destination.fileName"
}
}
]
}
]
}
}
如何将每个 cosmos doc 复制到单独的文件并将其命名为 {PartitionId}-{docId}？
UPD
源集代码：
{
"name": "ClustersData",
"properties": {
"linkedServiceName": {
"referenceName": "Clear_Test_CosmosDb",
"type": "LinkedServiceReference"
},
"type": "DocumentDbCollection",
"typeProperties": {
"collectionName": "directory-clusters"
}
}
}
目的地集代码：
{
"name": "OutputClusters",
"properties": {
"linkedServiceName": {
"referenceName": "Clear_Test_BlobStorage",
"type": "LinkedServiceReference"
},
"type": "AzureBlob",
"typeProperties": {
"format": {
"type": "JsonFormat",
"filePattern": "arrayOfObjects"
},
"fileName": "",
"folderPath": "cosmos-backup-logs"
}
}
}
管道代码：
{
"name": "copy-clsts",
"properties": {
"activities": [
{
"name": "LookupClst",
"type": "Lookup",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false
},
"typeProperties": {
"source": {
"type": "DocumentDbCollectionSource",
"nestingSeparator": "."
},
"dataset": {
"referenceName": "ClustersData",
"type": "DatasetReference"
},
"firstRowOnly": false
}
},
{
"name": "ForEachClst",
"type": "ForEach",
"dependsOn": [
{
"activity": "LookupClst",
"dependencyConditions": [
"Succeeded"
]
}
],
"typeProperties": {
"items": {
"value": "@activity('LookupClst').output.value",
"type": "Expression"
},
"batchCount": 8,
"activities": [
{
"name": "CpyClst",
"type": "Copy",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false
},
"typeProperties": {
"source": {
"type": "DocumentDbCollectionSource",
"query": "select @{item()}",
"nestingSeparator": "."
},
"sink": {
"type": "BlobSink"
},
"enableStaging": false,
"enableSkipIncompatibleRow": true,
"cloudDataMovementUnits": 0
},
"inputs": [
{
"referenceName": "ClustersData",
"type": "DatasetReference"
}
],
"outputs": [
{
"referenceName": "OutputClusters",
"type": "DatasetReference"
}
]
}
]
}
}
]
}
}
输入集合中的文档示例（格式相同）：
{
"$type": "Entities.ADCluster",
"DisplayName": "TESTNetBIOS",
"OrgId": "9b679d2a-42c5-4c9a-a2e2-3ce63c1c3506",
"ClusterId": "ab2a242d-f1a5-62ed-b420-31b52e958586",
"AllowLdapLifeCycleSynchronization": true,
"DirectoryServers": [
{
"$type": "Entities.DirectoryServer",
"AddressId": "e6a8edbb-ad56-4135-94af-fab50b774256",
"Port": 389,
"Host": "192.168.342.234"
}
],
"DomainNames": [
"TESTNetBIOS"
],
"BaseDn": null,
"UseSsl": false,
"RepositoryType": 1,
"DirectoryCustomizations": null,
"_etag": "\"140046f2-0000-0000-0000-5ac63a180000\"",
"LastUpdateTime": "2018-04-05T15:00:40.243Z",
"id": "ab2a242d-f1a5-62ed-b420-31b52e958586",
"PartitionKey": "directory-clusters-9b679d2a-42c5-4c9a-a2e2-3ce63c1c3506",
"_rid": "kpvxLAs6gkmsCQAAAAAAAA==",
"_self": "dbs/kvpxAA==/colls/kpvxLAs6gkk=/docs/kvpxALs6kgmsCQAAAAAAAA==/",
"_attachments": "attachments/",
"_ts": 1522940440
}
