[Gluster-users] Halo Replication usage

[Nathan Barry]

Hello All,

Halo Replication as contributed by Facebook seems to fit a significant
use-case for us, but the documentation is very sparse and leaves out key
details. I'm going to work on setting up a test environment to see how it
behaves, but can anybody answer a few questions?

1. is cluster.halo-enabled a global setting? Or does it only apply to
certain volumes in the TSP?

2. cluster.halo-min-replicas: How does this interact with a traditional
gluster volume create command? What replica levels are recommended? Does
it work with or need Arbiter?

3. Related to above: assuming you have 5 nodes per site (if you were doing
distributed/replicate with Arbiter previously), what halo-min-replicas
setting is recommended?

 

 



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