[Gluster-users] Rebalance question

Fred van Zwieten fvzwieten at vxcompany.com
Mon Sep 2 11:06:31 UTC 2013


> I have a question. I am on RHS 2.0 Update 4 (will soon go to 2.1 when it's
> out) and I have a distributed volume (across 7 nodes) where a fair amount
> of directory moves take place (or directory renames). AFAIK this will most
> likely give new hash values and so all data needs to be moved around the
> pool. Gluster does not do this immediately, but instead creates a link from
> the new location to the old location.
> Questions:
> 1. Is there a gluster command to investigate the amount of these links
> (How "dirty" is my volume)
> 2. What command to I use to fix this. I think a "simple" rebalance would
> do it.
> I would like to create a cron job that checks the amount of links and, if
> above a certain level, it will do a rebalance. Alternatively I could do a
> fixed periodic rebalance. And I have as yet no idea on what level (what
> amount of found links) a rebalance is necessary.
> Any thoughts, hints, etc?
> Fred
> Seeing, contrary to popular wisdom, isn’t believing. It’s where belief
> stops, because it isn’t needed any more.. (Terry Pratchett)
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