<div dir="ltr">Hello,<div><br></div><div>thank you for your reply. appreciated that</div><div><br></div><div>I tested again <span style="font-size:14px">with current GIT-head version(Commit: [9c711b4])</span>, reproduce this issue, and same result is happened.</div><div><br></div><div>more detail descriptions are below :</div><div><br></div><div>1) Env:</div><div><br></div><div>- CentOS 7 64bit </div><div>- i7 4790K CPU 4Ghz , memory :1G </div><div>- 2 node VM</div><div><br></div><div>2) drbd version (self build)</div><div><br></div><div><div>[root@drbd9-02 ]# ls -l /lib/modules/3.10.0-229.7.2.el7.x86_64/updates/drbd.ko</div><div>-rw-r--r-- 1 root root 10657876 <b> Jan 21</b> 11:01 /lib/modules/3.10.0-229.7.2.el7.x86_64/updates/drbd.ko</div><div><br></div></div><div>3) scenario:</div><div>- basically, progressed to 2-primary split-brain scenario. </div><div>- first, 2 node status is secondary-secondary uptodate <br></div><div><table style="font-size:14px;border-collapse:collapse;margin:5px 0px 5px 2px;width:auto;color:rgb(51,51,51);font-family:Arial,sans-serif;line-height:20px"><tbody><tr><th style="border:1px solid rgb(204,204,204);padding:3px 4px;text-align:center;background:rgb(245,245,245)">node 1 </th><th style="border:1px solid rgb(204,204,204);padding:3px 4px;text-align:center;background:rgb(245,245,245)">node 2</th></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px">drbdadm disconnect r0</td><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> </td></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px">drbdadm primary r0</td><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> <br></td></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px">copy files on node1 volume</td><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> </td></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> </td><td style="border:1px solid rgb(204,204,204);padding:3px 4px">drbdadm primary r0</td></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> </td><td style="border:1px solid rgb(204,204,204);padding:3px 4px">copy files on node2 volume <br></td></tr><tr><td style="border:1px solid rgb(204,204,204);padding:3px 4px">drbdadm connect r0</td><td style="border:1px solid rgb(204,204,204);padding:3px 4px"> </td></tr></tbody></table></div><div><br></div><div>4) result</div><div><br></div><div>- 2 primary Split-brain did not occurred.</div><div>- according to drbd kernel log, I guess that connecting phase is failed and retry to connect between 2 nodes, repeatedly. </div><div><br></div><div><br></div><div>you will see my drbd configuration and kernel log files, attached.</div><div><br></div><div>I hope that help for you.</div><div><br></div><div>Best Regards</div><div>Sung-eun kim </div><div>from Seoul</div><div><div><br></div></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="margin:0cm 0cm 0pt"><img src="cid:image001.png@01D0F522.B2A586F0" alt="설명: logo"></p><p style="margin:0cm 0cm 0.0001pt;background-image:initial;background-repeat:initial"><font face="verdana, sans-serif"><span style="font-size:10pt;color:black">기술연구소<span lang="EN-US"> </span><span lang="EN-US">/ </span>DRBD팀<span lang="EN-US"> Mobile : 010-2813-4843</span></span><span lang="EN-US" style="font-size:10.5pt;color:rgb(136,136,136)"></span></font></p><p style="margin:0cm 0cm 0pt"></p><p style="margin:0cm 0cm 0.0001pt;background-image:initial;background-repeat:initial"><font face="verdana, sans-serif"><b><span style="font-size:10.5pt;color:black">김 성 은<span lang="EN-US"> </span></span></b><b><span 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href="http://www.mantech.co.kr/" style="color:rgb(17,85,204)" target="_blank">http://www.mantech.co.kr</a></span><span lang="EN-US" style="color:rgb(0,0,0);font-family:verdana,sans-serif;font-size:8pt;line-height:16px"> </span><font color="#000000" face="verdana, sans-serif"><span lang="EN-US" style="font-size:8pt;line-height:16px"><br></span></font></p><p style="margin:0cm 0cm 0.0001pt;line-height:21px"><img src="cid:ii_150a68c3811acf54" alt="본문 이미지 1" width="400" height="160" style="line-height:normal"><br></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">2016-01-20 18:26 GMT+09:00 Philipp Reisner <span dir="ltr"><<a href="mailto:philipp.reisner@linbit.com" target="_blank">philipp.reisner@linbit.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I am following up on CASE 12 now.<br>
<br>
I was not able to reproduce what you describe in this report.<br>
Please check that you can still reproduce it with current GIT-head.<br>
If yes, please re-send it with a more detailed description, including:<br>
<br>
Configuration used.<br>
Logfiles from begin to end of the test.<br>
<br>
Thanks!<br>
<br>
Best regards,<br>
Phil<br>
<span class=""><br>
> Hello,<br>
><br>
> I am Software Manager in Mantech, and testing drbd 9.<br>
><br>
> some problems are occurred. CASE 12 is one of them.<br>
><br>
> [CASE 12] 2 primary split-brain is not detected.<br>
><br>
> Env:<br>
> - Linux VM 2 nodes<br>
> - Linux drbd version 9.0.0<br>
><br>
> Test scenario:<br>
><br>
> - 2 node's status is uptodate<br>
><br>
</span>> node 1node 2drbdadm disconnect r0 drbdadm primary r0 copy files on<br>
<span class="">> node1 drbdadm<br>
> primary r0 copy files on node2<br>
> drbdadm connect r0<br>
><br>
> - at this point, we predicted that 2 primary split-brain is occurred and<br>
> drbd9 detect it.<br>
><br>
> But split-brain is not occurred, not detected. no debug log.<br>
> Just retry connection log is showing between two nodes.<br>
><br>
> Question is :<br>
><br>
> 1) How can I test 2 primary split-brain situation ?<br>
><br>
> 2) Does support 2 primary split-brain in drbd9 ?<br>
><br>
><br>
> PS)<br>
><br>
> <a href="http://drbd.linbit.com/users-guide-9.0/s-configure-split-brain-behavior.html" rel="noreferrer" target="_blank">http://drbd.linbit.com/users-guide-9.0/s-configure-split-brain-behavior.html</a><br>
> #s-split-brain-notification<br>
><br>
> drbd9's manual describe 'after-sb-2pri' option.<br>
><br>
> Thanks,<br>
><br>
><br>
> Best Regards<br>
> Sungeun Kim<br>
><br>
><br>
><br>
><br>
> [image: 설명: logo]<br>
><br>
> 기술연구소 / DRBD팀 Mobile : 010-2813-4843<br>
><br>
</span>> *김 성 은 **차장 <a href="mailto:sekim@mantech.co.kr">sekim@mantech.co.kr</a> <<a href="mailto:sekim@mantech.co.kr">sekim@mantech.co.kr</a>>*<br>
<div class="HOEnZb"><div class="h5">><br>
> 서울특별시 성동구 성수일로4길 25 서울숲코오롱디지털타워 12층<br>
><br>
> Tel : 02-2136-6913 / Fax : 02-575-4858 / 콜센터 : 1833-7790<br>
><br>
> <a href="http://www.mantech.co.kr" rel="noreferrer" target="_blank">http://www.mantech.co.kr</a><br>
><br>
> [image: 본문 이미지 1]<br>
<br>
</div></div></blockquote></div><br></div>