<div dir="ltr"><div>Could you share the client (nfs?) logs?<br><br></div>-Krutika<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 7, 2016 at 1:14 PM, Kevin Lemonnier <span dir="ltr"><<a href="mailto:lemonnierk@ulrar.net" target="_blank">lemonnierk@ulrar.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I recently installed a 3.7.12 gluster to replace our 3.7.6 in production.<br>
I started moving a few VMs on it, it's accessed using NFS (not ganesha, as it's debian).<br>
<br>
Last night one of the nodes rebooted, I wasn't the one on call but I can see in our<br>
monitoring logs that the website hosted on the production VM I moved on the cluster stopped<br>
responding for 9 minutes. It really really looks like the problem we have with 3.7.6 where<br>
the VMs are freezing during the heals.<br>
Can someone confirm that 3.7.12 shouldn't be freezing the shards waiting for a heal, only the shards<br>
being actively healed ?<br>
<br>
In the VM's console I can see the warning about hung task for more than 120<br>
seconds, which does seem to indicate that the VM was frozen for a while.<br>
It's a simple debian 8 on proxmox with a virtIO disk on an NFS gluster volume.<br>
Here is the volume config, if that matters :<br>
<br>
Options Reconfigured:<br>
cluster.data-self-heal-algorithm: full<br>
features.shard-block-size: 64MB<br>
features.shard: on<br>
performance.stat-prefetch: off<br>
performance.io-cache: off<br>
performance.read-ahead: off<br>
performance.quick-read: off<br>
cluster.eager-lock: enable<br>
network.remote-dio: enable<br>
cluster.server-quorum-type: server<br>
cluster.quorum-type: auto<br>
performance.readdir-ahead: on<br>
<br>
Thanks<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Kevin Lemonnier<br>
PGP Fingerprint : 89A5 2283 04A0 E6E9 0111<br>
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