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Chris Lu 2020-03-12 21:53:43 -07:00 committed by GitHub
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@ -98,6 +98,7 @@ On top of the object store, optional [Filer] can support directories and POSIX a
* Automatic master servers failover - no single point of failure (SPOF).
* Automatic Gzip compression depending on file mime type.
* Automatic compaction to reclaim disk space after deletion or update.
* [Automatic TTL expires entries][VolumeServerTTL].
* Servers in the same cluster can have different disk spaces, file systems, OS etc.
* Adding/Removing servers does **not** cause any data re-balancing.
* Optionally fix the orientation for jpeg pictures.
@ -117,6 +118,7 @@ On top of the object store, optional [Filer] can support directories and POSIX a
* [Async Backup To Cloud][BackupToCloud] has extremely fast local access and backups to Amazon S3, Google Cloud Storage, Azure, BackBlaze.
* [WebDAV] access as a mapped drive on Mac and Windows, or from mobile devices.
* [Encrypted Storage][FilerDataEncryption] safely stores the encrypted data.
* [File TTL][FilerTTL] automatically purge file metadata and actual file data.
[Filer]: https://github.com/chrislusf/seaweedfs/wiki/Directories-and-Files
[Mount]: https://github.com/chrislusf/seaweedfs/wiki/Mount
@ -127,6 +129,8 @@ On top of the object store, optional [Filer] can support directories and POSIX a
[ErasureCoding]: https://github.com/chrislusf/seaweedfs/wiki/Erasure-coding-for-warm-storage
[CloudTier]: https://github.com/chrislusf/seaweedfs/wiki/Cloud-Tier
[FilerDataEncryption]: https://github.com/chrislusf/seaweedfs/wiki/Filer-Data-Encryption
[FilerTTL]: https://github.com/chrislusf/seaweedfs/wiki/Filer-Stores
[VolumeServerTTL]: https://github.com/chrislusf/seaweedfs/wiki/Store-file-with-a-Time-To-Live
[Back to TOC](#table-of-contents)
@ -388,7 +392,7 @@ Ceph uses CRUSH hashing to automatically manage the data placement. SeaweedFS pl
SeaweedFS is optimized for small files. Small files are stored as one continuous block of content, with at most 8 unused bytes between files. Small file access is O(1) disk read.
SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Redis, Etcd, Cassandra, MemSql, TiDB, CockroachCB, to manage file directories. There are proven, scalable, and easier to manage.
SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Redis, Etcd, Cassandra, MemSql, TiDB, CockroachCB, to manage file directories. These stores are proven, scalable, and easier to manage.
| SeaweedFS | comparable to Ceph | advantage |
| ------------- | ------------- | ---------------- |