<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=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></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=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>I’ve got two Kea 1.7.0 servers configured using the high-availability plugin and a MySQL backend for leases and hosts. Both servers are running MySQL 8.0.18 configured with Group Replication.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m still testing with this configuration and is it only setup in a lab environment at the moment.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Every once in a while I see log entries like this:<o:p></o:p></p><p class=MsoNormal>Oct 30 15:02:47 mgt-dhcpdns01 kea-dhcp4[7355]: 2019-10-30 15:02:47.528 WARN [kea-dhcp4.ha-hooks/7355] HA_LEASE_UPDATE_FAILED [hwtype=1 52:54:00:00:20:0b], cid=[no info], tid=0x1bf6516e: lease update to mgt-dhcpdns02 (<a href="http://10.14.90.6:5320/">http://10.14.90.6:5320/</a>) failed: unable to execute for <UPDATE lease4 SET address = ?, hwaddr = ?, client_id = ?, valid_lifetime = ?, expire = ?, subnet_id = ?, fqdn_fwd = ?, fqdn_rev = ?, hostname = ?, state = ?, user_context = ? WHERE address = ?>, reason: Plugin instructed the server to rollback the current transaction. (error code 3101), error code 1<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I think this happening because Group Replication replicates the lease from server01 to server02 and then HA attempted to update the same lease record directly on server02. Is there a way to tell HA to not replicate lease entries since Group Replication is already doing that?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>- Thanks!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>David Ruggles<o:p></o:p></p><p class=MsoNormal>Safe Data<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>