<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Mar 23, 2021 at 10:02 AM Diego Zuccato <<a href="mailto:diego.zuccato@unibo.it">diego.zuccato@unibo.it</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Il 22/03/21 16:54, Erik Jacobson ha scritto:<br>
<br>
> So if you had 24 leaders like HLRS, there would be 8 replica-3 at the<br>
> bottom layer, and then distributed across. (replicated/distributed<br>
> volumes)<br>
I still have to grasp the "leader node" concept.<br>
Weren't gluster nodes "peers"? Or by "leader" you mean that it's<br>
mentioned in the fstab entry like<br>
/l1,l2,l3:gv0 /mnt/gv0 glusterfs defaults 0 0<br>
while the peer list includes l1,l2,l3 and a bunch of other nodes?<br>
<br>
> So we would have 24 leader nodes, each leader would have a disk serving<br>
> 4 bricks (one of which is simply a lock FS for CTDB, one is sharded,<br>
> one is for logs, and one is heavily optimized for non-object expanded<br>
> tree NFS). The term "disk" is loose.<br>
That's a system way bigger than ours (3 nodes, replica3arbiter1, up to<br>
36 bricks per node).<br>
<br>
> Specs of a leader node at a customer site:<br>
> * 256G RAM<br>
Glip! 256G for 4 bricks... No wonder I have had troubles running 26<br>
bricks in 64GB RAM... :)<br></blockquote><div><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">If you can recompile Gluster, you may want to experiment with disabling memory pools - this should save you some memory.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Y.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
-- <br>
Diego Zuccato<br>
DIFA - Dip. di Fisica e Astronomia<br>
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