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Updated FUSE Mount (markdown)

Chris Lu 2020-10-22 20:30:30 -07:00
parent edf6ea798e
commit 0e673e7ba8
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FUSE-Mount.md

@ -72,16 +72,17 @@ filer ---- mount1
`weed mount` has a persistent client connecting to Master, to get the location updates of all volumes.
There are no network round trip to lookup the volume id location.
`weed mount` also subscribe all metadata updates from the Filer. So later reads would not need a network read from Filer, and the metadata reads, e.g., directory listings, are all local operations.
For reads:
1. Client Reads File Metadata => Weed Filer => Weed Filer database (LevelDB, Cassandra, Redis, Mysql, Postgres, etc)
2. Client optionally lookup volume Id => Weed Filer => Weed Master
3. Client Reads File Chunks => Weed Volume Servers
1. Mount optionally lookups volume Id => Weed Filer => Weed Master
2. Mount Reads File Chunks => Weed Volume Servers
![](MountRead.png)
For writes:
1. Client uploads data to Weed Volume Servers, and breaks the large files into chunks.
2. Client writes the metadata and chunk information into Filer and then into Filer database.
1. Mount uploads data to Weed Volume Servers, and breaks the large files into chunks.
2. Mount writes the metadata and chunk information into Filer and then into Filer database.
![](MountWrite.png)