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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">I suppose the brick numbers in your testing is six, and you just shut down the 3 process.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">When I reproduce the issue, I only create a replicate volume with 2 bricks, only let ONE brick working and set cluster.consistent-metadata on,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">With this 2 test condition, the issue could 100% reproducible.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">16:44:28 :)
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI Emoji",serif">⚡</span><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"> gluster v status<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Status of volume: r2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Gluster process TCP Port RDMA Port Online Pid<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">------------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_0 49152 0 Y 5309
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_1 49154 0 Y 5330
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_2 49156 0 Y 5351
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_3 49158 0 Y 5372
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_4 49159 0 Y 5393
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Brick localhost.localdomain:/home/gfs/r2_5 49160 0 Y 5414
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Self-heal Daemon on localhost N/A N/A Y 5436
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Task Status of Volume r2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">------------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">There are no active volume tasks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">root@dhcp35-190 - ~
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">16:44:38 :)
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI Emoji",serif">⚡</span><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"> kill -9 5309 5351 5393<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">George<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> gluster-devel-bounces@gluster.org [mailto:gluster-devel-bounces@gluster.org]
<b>On Behalf Of </b>Pranith Kumar Karampuri<br>
<b>Sent:</b> Wednesday, January 17, 2018 7:27 PM<br>
<b>To:</b> Lian, George (NSB - CN/Hangzhou) <george.lian@nokia-sbell.com><br>
<b>Cc:</b> Li, Deqian (NSB - CN/Hangzhou) <deqian.li@nokia-sbell.com>; Gluster-devel@gluster.org; Zhou, Cynthia (NSB - CN/Hangzhou) <cynthia.zhou@nokia-sbell.com>; Sun, Ping (NSB - CN/Hangzhou) <ping.sun@nokia-sbell.com><br>
<b>Subject:</b> Re: [Gluster-devel] a link issue maybe introduced in a bug fix " Don't let NFS cache stat after writes"<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">On Mon, Jan 15, 2018 at 1:55 PM, Pranith Kumar Karampuri <<a href="mailto:pkarampu@redhat.com" target="_blank">pkarampu@redhat.com</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span class="gmail-"><span lang="EN-US">On Mon, Jan 15, 2018 at 8:46 AM, Lian, George (NSB - CN/Hangzhou) <<a href="mailto:george.lian@nokia-sbell.com" target="_blank">george.lian@nokia-sbell.com</a>> wrote:</span></span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Hi,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Have you reproduced this issue? If yes, could you please confirm whether it is an issue or not?</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> I tried recreating this on my laptop and on both master and 3.12 and I am not able to recreate the issue :-(.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Here is the execution log: <a href="https://paste.fedoraproject.org/paste/-csXUKrwsbrZAVW1KzggQQ">
https://paste.fedoraproject.org/paste/-csXUKrwsbrZAVW1KzggQQ</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Since I was doing this on my laptop, I changed shutting down of the replica to killing the brick process to simulate this test.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Let me know if I missed something.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Sorry, I am held up with some issue at work, so I think I will get some time day after tomorrow to look at this. In the mean time I am adding more people who know about afr to see if they get a chance to work on this
before me.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">And if it is an issue,</span><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">
do you have any solution for this issue?</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Thanks & Best Regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">George</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Lian,
George (NSB - CN/Hangzhou) <br>
<b>Sent:</b> Thursday, January 11, 2018 2:01 PM<br>
<b>To:</b> Pranith Kumar Karampuri <<a href="mailto:pkarampu@redhat.com" target="_blank">pkarampu@redhat.com</a>><br>
<b>Cc:</b> Zhou, Cynthia (NSB - CN/Hangzhou) <<a href="mailto:cynthia.zhou@nokia-sbell.com" target="_blank">cynthia.zhou@nokia-sbell.com</a>>;
<a href="mailto:Gluster-devel@gluster.org" target="_blank">Gluster-devel@gluster.org</a>; Li, Deqian (NSB - CN/Hangzhou) <<a href="mailto:deqian.li@nokia-sbell.com" target="_blank">deqian.li@nokia-sbell.com</a>>; Sun, Ping (NSB - CN/Hangzhou) <<a href="mailto:ping.sun@nokia-sbell.com" target="_blank">ping.sun@nokia-sbell.com</a>><br>
<b>Subject:</b> RE: [Gluster-devel] a link issue maybe introduced in a bug fix " Don't let NFS cache stat after writes"</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Hi,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Please see detail test step on
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1531457" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1531457</a></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">How reproducible:</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">Steps to Reproduce:</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">1.create a volume name "test" with replicated
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">2.set volume option cluster.consistent-metadata with on:
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black"> gluster v set test cluster.consistent-metadata on</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">3. mount volume test on client on /mnt/test</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">4. create a file aaa size more than 1 byte</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black"> echo "1234567890" >/mnt/test/aaa</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">5. shutdown a replicat node, let's say sn-1, only let sn-0 worked</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">6. cp /mnt/test/aaa /mnt/test/bbb; link /mnt/test/bbb /mnt/test/ccc</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">BRs</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">George</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<a href="mailto:gluster-devel-bounces@gluster.org" target="_blank">gluster-devel-bounces@gluster.org</a> [<a href="mailto:gluster-devel-bounces@gluster.org" target="_blank">mailto:gluster-devel-bounces@gluster.org</a>]
<b>On Behalf Of </b>Pranith Kumar Karampuri<br>
<b>Sent:</b> Thursday, January 11, 2018 12:39 PM<br>
<b>To:</b> Lian, George (NSB - CN/Hangzhou) <<a href="mailto:george.lian@nokia-sbell.com" target="_blank">george.lian@nokia-sbell.com</a>><br>
<b>Cc:</b> Zhou, Cynthia (NSB - CN/Hangzhou) <<a href="mailto:cynthia.zhou@nokia-sbell.com" target="_blank">cynthia.zhou@nokia-sbell.com</a>>;
<a href="mailto:Gluster-devel@gluster.org" target="_blank">Gluster-devel@gluster.org</a>; Li, Deqian (NSB - CN/Hangzhou) <<a href="mailto:deqian.li@nokia-sbell.com" target="_blank">deqian.li@nokia-sbell.com</a>>; Sun, Ping (NSB - CN/Hangzhou) <<a href="mailto:ping.sun@nokia-sbell.com" target="_blank">ping.sun@nokia-sbell.com</a>><br>
<b>Subject:</b> Re: [Gluster-devel] a link issue maybe introduced in a bug fix " Don't let NFS cache stat after writes"</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">On Thu, Jan 11, 2018 at 6:35 AM, Lian, George (NSB - CN/Hangzhou) <<a href="mailto:george.lian@nokia-sbell.com" target="_blank">george.lian@nokia-sbell.com</a>>
wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Hi,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">>>></span><span lang="EN-US"> In which protocol are you seeing this issue? Fuse/NFS/SMB?<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">It is fuse, within mountpoint by
</span><span style="font-size:10.5pt;font-family:DengXian">“<span lang="EN-US">mount -t glusterfs</span></span><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">
</span><span style="font-size:10.5pt;font-family:DengXian">…“<span lang="EN-US"> command.</span></span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Could you let me know the test you did so that I can try to re-create and see what exactly is going on?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Configuration of the volume and the steps to re-create the issue you are seeing would be helpful in debugging the issue further.<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">Thanks & Best Regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt;font-family:DengXian">George</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:10.5pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<a href="mailto:gluster-devel-bounces@gluster.org" target="_blank">gluster-devel-bounces@gluster.org</a> [mailto:<a href="mailto:gluster-devel-bounces@gluster.org" target="_blank">gluster-devel-bounces@gluster.org</a>]
<b>On Behalf Of </b>Pranith Kumar Karampuri<br>
<b>Sent:</b> Wednesday, January 10, 2018 8:08 PM<br>
<b>To:</b> Lian, George (NSB - CN/Hangzhou) <<a href="mailto:george.lian@nokia-sbell.com" target="_blank">george.lian@nokia-sbell.com</a>><br>
<b>Cc:</b> Zhou, Cynthia (NSB - CN/Hangzhou) <<a href="mailto:cynthia.zhou@nokia-sbell.com" target="_blank">cynthia.zhou@nokia-sbell.com</a>>; Zhong, Hua (NSB - CN/Hangzhou) <<a href="mailto:hua.zhong@nokia-sbell.com" target="_blank">hua.zhong@nokia-sbell.com</a>>;
Li, Deqian (NSB - CN/Hangzhou) <<a href="mailto:deqian.li@nokia-sbell.com" target="_blank">deqian.li@nokia-sbell.com</a>>;
<a href="mailto:Gluster-devel@gluster.org" target="_blank">Gluster-devel@gluster.org</a>; Sun, Ping (NSB - CN/Hangzhou) <<a href="mailto:ping.sun@nokia-sbell.com" target="_blank">ping.sun@nokia-sbell.com</a>><br>
<b>Subject:</b> Re: [Gluster-devel] a link issue maybe introduced in a bug fix " Don't let NFS cache stat after writes"</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">On Wed, Jan 10, 2018 at 11:09 AM, Lian, George (NSB - CN/Hangzhou) <<a href="mailto:george.lian@nokia-sbell.com" target="_blank">george.lian@nokia-sbell.com</a>>
wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Hi, Pranith Kumar,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I has create a bug on Bugzilla
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1531457" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1531457</a><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">After my investigation for this link issue, I suppose your changes on afr-dir-write.c with issue " Don't let NFS cache stat after writes" , your fix is like:<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">--------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> if (afr_txn_nothing_failed (frame, this)) {<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> /*if it did pre-op, it will do post-op changing ctime*/<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> if (priv->consistent_metadata &&<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> afr_needs_changelog_update (local))<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> afr_zero_fill_stat (local);<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> local->transaction.unwind (frame, this);<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> }<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">In the above fix, it set the ia_nlink to
</span>‘<span lang="EN-US">0</span>’<span lang="EN-US"> if option consistent-metadata is set to
</span>“<span lang="EN-US">on</span>”<span lang="EN-US">.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">And hard link a file with which just created will lead to an error, and the error is caused in kernel function
</span>“<span lang="EN-US">vfs_link</span>”<span lang="EN-US">:<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black">if (inode->i_nlink == 0 && !(inode->i_state & I_LINKABLE))</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-family:"Courier New",serif;color:black"> error = -ENOENT;</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">could you please have a check and give some comments here?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">When stat is "zero filled", understanding is that the higher layer protocol doesn't send stat value to the kernel and a separate lookup is sent by the kernel
to get the latest stat value. In which protocol are you seeing this issue? Fuse/NFS/SMB?<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Thanks & Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">George<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"><br>
<br clear="all">
<br>
-- <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Pranith<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"><br>
<br clear="all">
<br>
-- <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Pranith<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#888888"><br>
<br clear="all">
<br>
<span class="gmail-hoenzb">-- <o:p></o:p></span></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#888888">Pranith</span><span lang="EN-US"><o:p></o:p></span></p>
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<br clear="all">
<br>
-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Pranith<o:p></o:p></span></p>
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