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SCSP methods can be created and run on unnamed objects in any domain. Housing (tenanting) unnamed objects in domains supports support metered environments that need to allocate storage to users based on the domain. The domain is not used to later locate the unnamed object in the cluster.

A cluster administrator must create the domain and enabled enable the cluster configuration setting cluster.enforceTenancy to be able to create an unnamed object in a domain. See How enforceTenancy Works.

An unnamed object is written to a specific domain by including the domain in a query argument or in the HOST header:

Which domain? 

Alias Object

Immutable Object

Unspecified
(

default domain

Default Domain)

POST /?alias

POST /

Every unnamed object that has no domain explicitly defined belongs to the default cluster domain.

Verify the cluster administrator has set up a default domain, which is a domain name that exactly matches the name of the cluster.

By

query argument

Query Argument

POST /?domain=domain-name&alias

POST /?domain=domain-name


By

host name

Host Name

POST /?alias

Host: domain-name

POST /

Host: domain-name

info

Note

Performance

Warning

Swarm performs several attempts to look up the invalid domain before timing out on every request if the application passes an invalid HOST header: a domain that does not exist in or matches the cluster name.