Requests to LeoFS

Requests to LeoFS

Published Milestone

• LeoFS' milestone

Requests from LeoFS members and users

Non-functional Requirements

TEST

• Replaying live HTTP traffic of a test/staging/production environment using gor
• Testing over 100 storage nodes using Docker
• Testing out-of-order situation
  • Cluster recovery test
    • Rebalance (detach or attach node) during R/W/D operation
  • Disk failure of a node/plural nodes into a LeoFS' cluster
  • Network failure of a node/plural nodes into a LeoFS' cluster

Comparison of features and performance

• GlusterFS
• Ceph
• Others

Development

• Delivering LeoFS' Official Dockerfile
  • Based on Ubuntu OR Alpine
  • Recently, the mainstream of an integration test is using Docker and depending on Docker compose, so we need to deliver the LeoFS' official docker file.
• rebar3 support
• relx support
• Registering Erlang ofifcial repository, Hex

Documentation

• Enhance the documentation for administrators
  • Regular operation
    • Installation and system launch
    • Others
  • Irregular operation
    • In the case of node down
    • In the case of data-compaction
    • In the case of attached/detached node(s)
    • Others

Functional Requirements

• Http/2 Support which depends on Cowboy v2
• Writing to an append blog and supporting sparse file
  • Blob (for small size object)
  • Append blog (for log)
    • Background: Lots of services want to support appending blob feature
  • Random Access (for large size object)
  • Sparse file support
• Multi protocol
  • LeoFS' native client (based on FUSE)
  • Improvement of move(rename) and copy on write
  • S3-API's compatibility
    • Object rename
    • Object copy
• leofs-adm
  • Canceling compaction
    • cancel / revert
    • suspend -> resume
  • whereis command - Adding a column of AVS's number
• Delivering scripts for administrators
  • Compression of log data
  • Compaction operation for clonetab

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• rev: 2 (Oct 7, 2016)