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From: | Jeff Darcy |
Subject: | Re: [Gluster-devel] DHT idea: rebalance-specific layout |
Date: | Mon, 24 Mar 2014 14:47:40 -0004 |
One question: would(n't) there be a chance for "thrashing" (maybe there's a better word) where new files are getting put on brick X, but the rebalance is then trying to move them to brick Y?
In this scenario, neither layout would lead to placing new files on the oldest bricks. However, you do remind me of a point I forgot to mention: the rebalance must only run on the oldest bricks. Otherwise it would be possible for a file to be placed (according to the regular layout) on one of the newest bricks, then the rebalance process running on that brick would push it (according to the rebalance layout) to one of the medium bricks.
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