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<div class="moz-cite-prefix">On Tuesday 09 December 2014 02:47 PM,
shuau li wrote:<br>
</div>
<blockquote
cite="mid:38f9fa5b.f5b5.14a2e57115f.Coremail.lishuai_ujs@126.com"
type="cite">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">
<div>hi all,<br>
<br>
In my environment, I meet a nfs problem.When I do dd
write for a while, nfs client will report "nfs server no
responding".I think this maybe a bug of nfs server, Is anybody
meet similar problem? <br>
<br>
The details of my environment and test are as follow:<br>
<br>
glusterfs version:<br>
3.6.1<br>
3 nodes:<br>
cpu with 8 core 3.20 GHz, 16 GB memory, 10000baseT/Full
network card<br>
<br>
I use two nodes create a replica volume with two bricks,
another nodes act as client, client use protocol nfs3 to mount
volume through the 10000baseT/Full network card, then use
command "dd if=/dev/zero of=/mnt/ida/testdata bs=128k" to
write data. <br>
<br>
<span id="result_box" class="short_text" lang="en"><span
class="hps">Generally, </span></span><span
id="result_box" class="short_text" lang="en"><span
class="hps">only</span> <span class="hps">data</span> <span
class="hps">about</span> <span class="hps">10G</span></span>
can be write successfully. Then client will say "nfs server ip
no responding".At the same time, I use gdb to trace nfs
process in nfs server, the result is that nfs server keeps
staying in epoll_wait, why nfs server can not listen requests
from nfs client ?<br>
<br>
<span id="result_box" class="short_text" lang="en"><span
class="hps">In addition, I noticed the difference between
fuse and nfs. When access through fuse, two threads will
work together, one </span></span><span id="result_box"
class="short_text" lang="en"><span class="alt-edited">responsible</span></span>
for fuse-bridge, another <span id="result_box"
class="short_text" lang="en"><span class="alt-edited">responsible</span></span>
for listening socket. But in nfs, only one thread work in
background, both responsible for nfs server and listening
socket. Will the cause process <span id="result_box"
class="short_text" lang="en"><span class="hps">bottleneck</span></span>?<br>
<br>
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</div>
<div id="gt-res-content" class="almost_half_cell">
<div dir="ltr" style="zoom:1"><span id="result_box"
class="short_text" lang="en"><span class="hps">Best
wishes！！</span></span></div>
</div>
<br>
<span id="result_box" class="short_text" lang="en"><span
class="hps">Looking forward to your</span> <span
class="hps">reply！</span></span><br>
<br>
<br>
</div>
</div>
<br>
</blockquote>
<br>
Hi,<br>
<br>
Can you please attach the nfs server and brick log files? You can
find the log files in /var/log/glusterfs.<br>
<br>
Regards,<br>
Raghavendra Bhat<br>
<blockquote
cite="mid:38f9fa5b.f5b5.14a2e57115f.Coremail.lishuai_ujs@126.com"
type="cite"><br>
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