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Highlights from LinuxCon EU: Gluster Automatic File Replication Talk

Gluster
2015-10-27

Some quick highlights from our Gluster talks at LinuxCon EU, as well as slides available as a PDF below.

Gluster Automatic File Replication Talk from Ravishankar Narayankutty:

The talk started off with a quick-start introduction to the gluster lingo and its keywords, relating them to a block-diagram representation of the components.
It then went on to outline what a translator is and how AFR works on gluster, how files are healed, how a file can end up in split-brain etc. It then delved into
the recent improvements in AFR, namely:

1. Improvements in the ‘glfsheal’ program which gives out statistics for files that need heal.
2. The server and client side split-brain resolution commands that make it a breeze to resolve files that are in split-brain.
3. The ‘arbiter’ configuration for replica 3 volumes that prevent split-brain altogether.

Finally, the talk touched upon the upcoming improvements in self-heal performance, namely granular entry self-heals, granular data self-heals, mufti-threading the self-heal daemon, throttling and compounding of FOPS for better responsiveness and performance.

Slides for Gluster’s Automatic File Replication – LinuxCon EU

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