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These settings are available in system.settings and are autogenerated from source.

s3_max_connections

The maximum number of connections per server.

s3_max_get_burst

Max number of requests that can be issued simultaneously before hitting request per second limit. By default (0) equals to s3_max_get_rps

s3_max_get_rps

Limit on S3 GET request per second rate before throttling. Zero means unlimited.

s3_max_inflight_parts_for_one_file

The maximum number of a concurrent loaded parts in multipart upload request. 0 means unlimited.

s3_max_part_number

Maximum part number number for s3 upload part.

s3_max_put_burst

Max number of requests that can be issued simultaneously before hitting request per second limit. By default (0) equals to s3_max_put_rps

s3_max_put_rps

Limit on S3 PUT request per second rate before throttling. Zero means unlimited.

s3_max_single_operation_copy_size

Maximum size for single-operation copy in s3. This setting is used only if s3_allow_multipart_copy is true.

s3_max_single_part_upload_size

The maximum size of object to upload using singlepart upload to S3.

s3_max_single_read_retries

The maximum number of retries during single S3 read.

s3_max_unexpected_write_error_retries

The maximum number of retries in case of unexpected errors during S3 write.

s3_max_upload_part_size

The maximum size of part to upload during multipart upload to S3.
Last modified on July 23, 2026