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a glossary

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Jean-Paul Calderone 2021-08-17 14:58:34 -04:00
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docs/proposed/http-storage-node-protocol.rst
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@ -13,6 +13,47 @@ Specifically, it should be possible to implement a Tahoe-LAFS storage server wit
The Tahoe-LAFS client will also need to change but it is not expected that it will be noticably simplified by this change
(though this may be the first step towards simplifying it).
Glossary
--------
.. glossary::
`Foolscap <https://github.com/warner/foolscap/>`_
an RPC/RMI (Remote Procedure Call / Remote Method Invocation) protocol for use with Twisted
storage server
a Tahoe-LAFS process configured to offer storage and reachable over the network for store and retrieve operations
introducer
a Tahoe-LAFS process at a known location configured to re-publish announcements about the location of storage servers
fURL
a self-authenticating URL-like string which can be used to locate a remote object using the Foolscap protocol
lease
state associated with a share informing a storage server of the duration of storage desired by a client
share
a single unit of client-provided arbitrary data to be stored by a storage server
(in practice, one of the outputs of applying ZFEC encoding to some ciphertext with some additional metadata attached)
bucket
a group of one or more immutable shares held by a storage server and having a common storage index
slot
a group of one or more mutable shares held by a storage server and having a common storage index
(sometimes "slot" is considered a synonym for "storage index of a slot")
storage index
a short string which can address a slot or a bucket
(in practice, derived by hashing the encryption key associated with contents of that slot or bucket)
write enabler
a short secret string which storage servers require to be presented before allowing mutation of any mutable share
lease renew secret
a short secret string which storage servers required to be presented before allowing a particular lease to be renewed
Motivation
----------