Tencent COS

This document describes the parameters required to access Tencent Cloud COS, which apply to the following scenarios:

• Catalog properties
• Table Valued Function properties
• Broker Load properties
• Export properties
• Outfile properties

Doris uses S3 Client to access Tencent Cloud COS through S3-compatible protocol.

Parameter Overview

Property Name	Legacy Name	Description	Default Value	Required
cos.endpoint	s3.endpoint	COS endpoint, specifies the access endpoint for Tencent Cloud COS		Yes
cos.access_key	s3.access_key	COS access key, used for authentication to access COS		Yes
cos.secret_key	s3.secret_key	COS secret key, used together with access key for authentication		Yes
cos.region	s3.region	COS region, specifies the region of Tencent Cloud COS		No
cos.connection.maximum	s3.connection.maximum	S3 maximum connections, specifies the maximum number of connections to COS service	50	No
cos.connection.request.timeout	s3.connection.request.timeout	S3 request timeout in milliseconds, specifies the request timeout when connecting to COS service	3000	No
cos.connection.timeout	s3.connection.timeout	S3 connection timeout in milliseconds, specifies the timeout when establishing connection to COS service	1000	No

Before version 3.1, use legacy name

Configuration Examples

"cos.access_key" = "your-access-key",
"cos.secret_key" = "your-secret-key",
"cos.endpoint" = "cos.ap-beijing.myqcloud.com",
"cos.region" = "ap-beijing"

For versions before 3.1:

"s3.access_key" = "ak",
"s3.secret_key" = "sk",
"s3.endpoint" = "cos.ap-beijing.myqcloud.com",
"s3.region" = "ap-beijing"

Usage Recommendations

• It is recommended to use the cos. prefix for configuration parameters to ensure consistency and clarity with Tencent Cloud COS.
• For versions before 3.1, please use the legacy s3. prefix.
• Configuring cos.region can improve access accuracy and performance, and it is recommended to set it.
• Connection pool parameters can be adjusted according to concurrency requirements to avoid connection blocking.