Before creating E-MapReduce, you need to complete the following preparations:

1. Apply for Alibaba Cloud account

   Before applying for the E-MapReduce cluster, you need to have an Alibaba Cloud account to identify yourself to the entire Alibaba Cloud ecosystem. This account can be used not only to apply for the E-MapReduce cluster, but also to activate Alibaba Cloud services, such as Object Storage Service, OSS (“Object Storage Service, OSS”) and ApsaraDB for RDS, RDS (“ApsaraDB for RDS, RDS”).

   If you don’t have an Alibaba Cloud account, apply for it by referring to Register Cloud Account.

2. Create Access Key

   To facilitate E-MapReduce calls and access, you need to create at least one Access Key according to the following steps:

   1. Log on to the official Alibaba Cloud website.

   2. Log on to the console.

   3. Click AccessKeys.

      Note: If the following prompt dialog box pops up, click to continue using Accesskey.

   4. Click Create Access Key, and then click Agree and Create .

   5. Input the SMS verification code, and click OK. Access Key is created successfully.

3. Activate Alibaba Cloud OSS

   E-MapReduce will store your job logs and running logs in the Alibaba Cloud OSS storage space, so you need to activate Alibaba Cloud OSS by referring to the operation steps in Sign up for OSS.