Gluster users - Nov 2015 - Clients are unable to connect while rebalancing

Hi all,

We have a 4 node distributed/replicated setup (2 x 2) with gluster version
3.6.4.

Yesterday one node went down due to a power failure, as expected everything kept
working well. But after we brought up the failed node again gluster started,
also as expected, its self-healing process. The moment that happens all our
client connections to the gluster cluster start freezing one by one till the
moment the healing process finishes.

After some research we found this page
http://www.gluster.org/community/documentation/index.php/Documenting_the_undocumented
with some possible performance options to tweak, performance.least-prio-threads
and performance.least-rate-limit. Does anybody has experience with tweaking
these options? What are there default settings? Are these the right options to
tweak or do we needs another approach regarding our problem?

Thanks in advance.

Kind regards
Davy

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