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Diffstat (limited to 'docs/reference/blobs/sync.rst')
| -rw-r--r-- | docs/reference/blobs/sync.rst | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/docs/reference/blobs/sync.rst b/docs/reference/blobs/sync.rst index bdfad0cf..93fb7cb0 100644 --- a/docs/reference/blobs/sync.rst +++ b/docs/reference/blobs/sync.rst @@ -1,3 +1,5 @@ +.. _blobs-sync: + Blobs Synchronization ===================== @@ -5,7 +7,7 @@ Because blobs are immutable, synchronization is much simpler than the JSON-based :ref:`document-sync`. The synchronization process is as follows: 1. The client asks the server for a list of Blobs and compares it with the local list. -2. A local list is updated with pending blobs download and upload. +2. A local list is updated with pending downloads and uploads. 3. Downloads and uploads are triggered. Immutability brings some characteristics to the blobs system: @@ -13,11 +15,18 @@ Immutability brings some characteristics to the blobs system: - There's no need for storage of versions or revisions. - Updating is not possible (you would need to delete and recreate a blob). +Client-side encryption +---------------------- + +Blobs are encrypted before being sent to the server and decrypted after being +received. A MAC is also calculated to authenticate the contents of each blob. +See :ref:`client-encryption` for more details of how this is done. + Synchronization status ---------------------- -In the client-side, each has an associated synchronization status, which can be -one of: +In the client-side, each blob has an associated synchronization status, which +can be one of: - ``SYNCED``: The blob exists both in this client and in the server. - ``PENDING_UPLOAD``: The blob was inserted locally, but has not yet been uploaded. @@ -29,8 +38,8 @@ Concurrency limits In order to increase the speed of synchronization on the client-size, concurrent database operations and transfers to the server are allowed. Despite -that, to prevent indiscriminated use or client resources (cpu, memory, -bandwith), concurrenty limits are set both for database operations and for data +that, to prevent indiscriminated use of client resources (cpu, memory, +bandwith), concurrenty limits are set both for database operations and data transfer. Transfer retries |