<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=koi8-r"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
line-height:12.0pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:36.0pt;
line-height:12.0pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
.MsoPapDefault
{mso-style-type:export-only;
mso-margin-top-alt:auto;
mso-margin-bottom-alt:auto;
line-height:12.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:2.0cm 42.5pt 2.0cm 3.0cm;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:509368517;
mso-list-type:hybrid;
mso-list-template-ids:2065613644 268214892 68747267 68747269 68747265 68747267 68747269 68747265 68747267 68747269;}
@list l0:level1
{mso-level-start-at:0;
mso-level-number-format:bullet;
mso-level-text:-;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-font-family:Calibri;
mso-bidi-font-family:"Times New Roman";}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=RU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>We have Pacemaker cluster of two node Active/Backup (OS Centos 6.7), with resources IPaddr2 and ldirectord.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Cluster Properties:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cluster-infrastructure: cman<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> dc-version: 1.1.11-97629de<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>no-quorum-policy: ignore<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> stonith-enabled: false<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The cluster has been configured for this documentation: <a href="http://clusterlabs.org/quickstart-redhat-6.html">http://clusterlabs.org/quickstart-redhat-6.html</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Recently, there was a communication failure between cluster nodes and the behavior was like this:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>During a network failure, each server has become the Master.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>After the restoration of the network, one node killing services of Pacemaker on the second node.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>The second node was not available for the cluster, but all resources remain active (Ldirectord,ipvs,ip address). That is, both nodes continue to be active.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>We decided to create a test stand and play the situation, but with current version of Pacemaker in CentOS repos, </span>Ó<span lang=EN-US>luster behaves differently:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>During a network failure, each server has become the Master.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>After the restoration of the network, all resources are stopped.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Then the resources are run only on one node. - This behavior seems to be more logical.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Current Cluster Properties on test stand:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cluster-infrastructure: cman<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> dc-version: 1.1.14-8.el6-70404b0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> have-watchdog: false<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> no-quorum-policy: ignore<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> stonith-enabled: false<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Changed the behavior of the cluster in the new version or accident is not fully emulated? <o:p></o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><span lang=EN-US>Thank you.<o:p></o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><span lang=EN-US style='color:#1F497D'>Kind regards,<o:p></o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><span lang=EN-US style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal style='margin:0cm;margin-bottom:.0001pt;line-height:normal'><b><span lang=EN-US style='color:#1F497D'>Vladimir Pavlov</span></b><span lang=EN-GB style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#939598'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>