WHEA: Swift HEAD

04/12/2023 Contributors

When a Swift client issues a HEAD transaction, a request is made to check for the existence of an account, container, or object, and retrieve any relevant metadata. This message is issued by the server if the transaction is successful.

Code Field Description

Code	Field	Description
CBID	Content Block Identifier	The unique identifier of the content block requested. If the CBID is unknown, this field is set to 0. Operations on accounts and containers don't include this field.
CSIZ	Content Size	The size of the retrieved object in bytes. Operations on accounts and containers don't include this field.
HTRH	HTTP Request Header	List of logged HTTP request header names and values as selected during configuration. `X-Forwarded-For` is automatically included if it is present in the request and if the `X-Forwarded-For` value is different from the request sender IP address (SAIP audit field).
RSLT	Result Code	Result of the HEAD transaction. Result is always: SUCS: successful
SAIP	IP address of requesting client	The IP address of the client application that made the request.
TIME	Time	Total processing time for the request in microseconds.
TLIP	Trusted Load Balancer IP Address	If the request was routed by a trusted Layer 7 load balancer, the IP address of the load balancer.
UUID	Universally Unique Identifier	The identifier of the object within the StorageGRID system.
WACC	Swift Account ID	The unique account ID as specified by the StorageGRID system.
WCON	Swift Container	The Swift container name. Operations on accounts don't include this field.
WOBJ	Swift Object	The Swift object identifier. Operations on accounts and containers don't include this field.
WUSR	Swift Account User	The Swift account username that uniquely identifies the client performing the transaction.

CBID

Content Block Identifier

The unique identifier of the content block requested. If the CBID is unknown, this field is set to 0. Operations on accounts and containers don't include this field.

CSIZ

Content Size

The size of the retrieved object in bytes. Operations on accounts and containers don't include this field.

HTRH

HTTP Request Header

List of logged HTTP request header names and values as selected during configuration.

X-Forwarded-For is automatically included if it is present in the request and if the X-Forwarded-For value is different from the request sender IP address (SAIP audit field).

RSLT

Result Code

Result of the HEAD transaction. Result is always:

SUCS: successful

SAIP

IP address of requesting client

The IP address of the client application that made the request.

TIME

Time

Total processing time for the request in microseconds.

TLIP

Trusted Load Balancer IP Address

If the request was routed by a trusted Layer 7 load balancer, the IP address of the load balancer.

UUID

Universally Unique Identifier

The identifier of the object within the StorageGRID system.

WACC

Swift Account ID

The unique account ID as specified by the StorageGRID system.

WCON

Swift Container

The Swift container name. Operations on accounts don't include this field.

WOBJ

Swift Object

The Swift object identifier. Operations on accounts and containers don't include this field.

WUSR

Swift Account User

The Swift account username that uniquely identifies the client performing the transaction.

WHEA: Swift HEAD

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