--- title: "Cloud Hadoop overview" slug: "analytics-cloudhadoop" updated: 2026-09-17T09:48:02Z published: 2026-09-17T09:48:02Z canonical: "api.ncloud-docs.com/analytics-cloudhadoop" --- > ## Documentation Index > Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Cloud Hadoop overview Available in Classic Cloud Hadoop is a NAVER Cloud Platform service that allows users to freely use open source-based frameworks such as Apache Hadoop, HBase, Spark, Hive, and Presto to process big data easily and quickly. Cloud Hadoop provides APIs for creating Hadoop clusters, adding worker nodes, and querying resources in the RESTful form. ## Common Cloud Hadoop settings The following describes commonly used request and response formats in Cloud Hadoop APIs. ### Request The following describes the common request format. #### API URL The request API URL is as follows: ``` https://ncloud.apigw.ntruss.com ``` #### Request headers The following describes the request headers. | Field | Required | Description | | --- | --- | --- | | `x-ncp-apigw-timestamp` | Required | This is the number of milliseconds that have elapsed since January 1, 1970 00:00:00 UTC. - Request is considered invalid if the timestamp differs from the current time by more than 5 minutes. - Unix timestamp format. | | `x-ncp-apigw-api-key` | Required | API key issued by the API Gateway service of NAVER Cloud Platform | | `x-ncp-iam-access-key` | Required | Access key issued on NAVER Cloud Platform - Issue and check access key: See [Create authentication key](/docs/en/common-ncpapi). - Issue and check access key for sub account: See [Create sub account](https://guide.ncloud-docs.com/docs/en/subaccount-use#%EC%84%9C%EB%B8%8C-%EA%B3%84%EC%A0%95-%EC%83%9D%EC%84%B1). | | `x-ncp-apigw-signature-v2` | Required | Base64-encoded signature that encrypts the request information with a secret key that maps to the access key issued on NAVER Cloud Platform, using the HMAC encryption algorithm (HmacSHA256) - Issue and check secret key: See [Create authentication key](/docs/en/common-ncpapi). - Create signature: See [Create signature](/docs/en/common-ncpapi). | ### Response The following describes the common response format. #### Response body The response body includes the following data: **responseError** responseError defines the API call failure information. The following describes responseError. | Field | Type | Required | Description | | --- | --- | --- | --- | | `returnCode` | String | Required | Errors | | `returnMessage` | String | Required | Error message | #### Response status codes The following describes the response status codes. | HTTP status code | Code | Message | Description | | --- | --- | --- | --- | | 400 | 900 | Required field is not specified. location: [Parameter name] | Missing required parameter - Add required parameter and try again. | | 500 | 908 | workerNodeCount is invalid. workerNodeCount should be in [2, 12] | Number of worker nodes exceeds the range of increase/decrease. - Edit with 10 or fewer change values and try again. | | 500 | 929 | Please try your call again later.\nTemporarily out of service.\nIf error continue, Please contact our customer service center. | Temporary error - Try again later or contact [**Support**](https://www.ncloud.com/support/question/service) of the NAVER Cloud Platform portal if the problem persists. | | 500 | 10713 | No such item found. If the error persists,contact Customer Service. | Cluster instance number entry error - Try again after editing the cluster instance number. | Note For response status codes common to NAVER Cloud Platform, see [Ncloud API response status codes](/docs/en/common-ncpapi#3%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C). #### Response example For response examples when a call is successful, see each API specification. The following is a sample response upon a failed call. - JSON ``` { "error": { "returnCode": "string", "returnMessage": "string", } } ``` - XML ``` string string ``` ## Cloud Hadoop API The following describes the APIs provided by the Cloud Hadoop service. | API | Description | | --- | --- | | [changeCloudHadoopNodeCount](/docs/en/analytics-cloudhadoop-changeworkernodecount) | Change the number of cluster worker nodes. | | [createCloudHadoopInstance](/docs/en/analytics-cloudhadoop-createcloudhadoopinstance) | Create cluster. | | [deleteCloudHadoopInstance](/docs/en/analytics-cloudhadoop-deletecloudhadoopistance) | Delete cluster. | | [getCloudHadoopBucketList](/docs/en/analytics-cloudhadoop-getcloudhadoopbucketlist) | Get available Object Storage buckets. | | [getCloudHadoopImageProductList](/docs/en/docs/en/analytics-cloudhadoop-getcloudhadoopimageproductlist) | Get available cluster images. | | [getCloudHadoopInstanceList](/docs/en/analytics-cloudhadoop-getcloudhadoopinstancelist) | Get cluster list. | | [getCloudHadoopProductList](/docs/en/analytics-cloudhadoop-getcloudhadoopproductlist) | Get available node-specific server types. | ## Cloud Hadoop related resources NAVER Cloud Platform provides a variety of related resources to help users better understand Cloud Hadoop APIs. - Cloud Hadoop API guides - [Create signature](/docs/en/common-ncpapi): how to create a signature to add to the request header - [API Gateway User Guide](https://guide.ncloud-docs.com/docs/en/apigw-apigw-1): how to issue the API key to be added to the request header - [Sub Account User Guide](https://guide.ncloud-docs.com/docs/en/subaccount-overview): how to issue the access key to be added to the request header - [Common Ncloud response status codes](/docs/en/common-ncpapi#3%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C): information on common response status codes of NAVER Cloud Platform used by the Cloud Hadoop service - How to use the Cloud Hadoop service - [Cloud Hadoop User Guide](https://guide.ncloud-docs.com/docs/en/hadoop-chadoop-1): how to use Cloud Hadoop in the NAVER Cloud Platform console - [Ncloud use environment guide](https://guide.ncloud-docs.com//docs/en/environment-environment-1-1): guide on VPC and Classic environments and supported features - [Introduction to pricing, characteristics, and detailed features](https://www.ncloud.com/product/analytics/cloudHadoop): the summary of pricing system, characteristics, and detailed features of Cloud Hadoop - [Latest service news](https://www.ncloud.com/intro/news): the latest news on the Cloud Hadoop service - [FAQ](https://www.ncloud.com/support/faq/all): frequently asked questions from the Cloud Hadoop service users - [Contact us](https://www.ncloud.com/support/question/general): Send direct inquiries for unresolved questions that aren't answered by the API guide.