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<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Hi all:<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> I countered a problem when configuring
DRBD+HTTP+Heartbeat.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> I set up a cluster of two computers:
node1 (primary) and node2 (secondary), sharing a drbd device on the net. Each machine
just have one Nic for drbd and heartbeats.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> Step 1: startup drbd and
heartbeat on node1(the heartbeat will mount drbd device in local directory tree
and start http service) and node2. It¡¯s ok. I can access virtual IP through IE.
And see the page on node1.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> Step 2: reboot node1. Then the node2
becomes the new primary and heartbeat startup http service on node2. node2 now provide
httpd service. <o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> Step 3: When the node1 comes up again.
Start drbd and heartbeat on it. <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:21.0pt;layout-grid-mode:char'><font
size=3 color=blue face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;
font-family:"Trebuchet MS";color:blue'>But run ¡°cat /proc/drbd¡± on node1, it shows:<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> At the same time, run ¡°cat /proc/drbd¡±
on node2, it shows:<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> version: 0.7.18 (api:78/proto:74)<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>SVN Revision: 2176 build by root@secondary, 2007-04-23 17:18:34<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> 0: cs:StandAlone st:Primary/Unknown ld:Consistent<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> ns:8 nr:8 dw:68 dr:489 al:0 bm:1 lo:0 pe:0 ua:0
ap:0<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> /var/log/message in node2:<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> Apr 27 13:37:36 mouse kernel: drbd0:
drbd0_receiver [6530]: cstate WFConnection --> WFReportParams<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: Handshake successful: DRBD
Network Protocol version 74<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: Connection established.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: I am(P):
1:00000002:00000001:0000004b:00000013:10<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: Peer(S):
1:00000002:00000001:0000004d:00000012:00<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: Current Primary shall become
sync TARGET! Aborting to prevent data corruption.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: drbd0_receiver [6530]: cstate
WFReportParams --> StandAlone<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: error receiving ReportParams,
l: 72!<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: worker terminated<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: asender terminated<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: drbd0_receiver [6530]: cstate
StandAlone --> StandAlone<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: Connection lost.<o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'>Apr 27 13:37:36 mouse kernel: drbd0: receiver terminated<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:24.0pt;layout-grid-mode:char'><font
size=3 color=blue face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;
font-family:"Trebuchet MS";color:blue'>Step4: run ¡°drbdadm adjust all¡± on node2,
everything is ok.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:24.0pt;layout-grid-mode:char'><font
size=3 color=blue face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;
font-family:"Trebuchet MS";color:blue'>In my opinion, without step 4, everything
should ok: the failed node comes up and run as secondary in cluster. <o:p></o:p></span></font></p>
<p class=MsoNormal style='layout-grid-mode:char'><font size=3 color=blue
face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;font-family:"Trebuchet MS";
color:blue'> I wonder if there is something wrong
with my configuration. How can I get these two machines reconnect without step 4?
<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:24.0pt;layout-grid-mode:char'><font
size=3 color=blue face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;
font-family:"Trebuchet MS";color:blue'>Thanks...<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:24.0pt;layout-grid-mode:char'><font
size=3 color=blue face="Trebuchet MS"><span lang=EN-US style='font-size:12.0pt;
font-family:"Trebuchet MS";color:blue'> <o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt;layout-grid-mode:
char'><font size=2 color=black face=Helvetica><span lang=EN-US
style='font-size:11.0pt;font-family:Helvetica;color:black'>Best regards<o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:black'>Selina Sun<o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:black'>SW2</span></font><font size=2 color=navy face=Arial><span
lang=EN-US style='font-size:10.0pt;font-family:Arial;color:navy'><o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:black'>ZyXEL Communications</span></font><font size=2
color=black face=PMingLiU><span lang=ZH-TW style='font-size:11.0pt;font-family:
PMingLiU;color:black'>£¨</span></font><font size=2 color=black face=Helvetica><span
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size=2 color=black face=PMingLiU><span lang=ZH-TW style='font-size:11.0pt;
font-family:PMingLiU;color:black'>£©</span></font><font size=2 color=black
face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:Helvetica;
color:black'>Corp.</span></font><font size=2 color=black face="Trebuchet MS"><span
lang=FR style='font-size:11.0pt;font-family:"Trebuchet MS";color:black'><o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:black'>Tel: +86-510-</span></font><font size=2 color=black
face="Trebuchet MS"><span lang=FR style='font-size:11.0pt;font-family:"Trebuchet MS";
color:black'>8</span></font><font size=2 color=black face=Helvetica><span
lang=FR style='font-size:11.0pt;font-family:Helvetica;color:black'>8080888 ext.
15516</span></font><font color=blue><span lang=EN-US style='color:blue'><o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face="Trebuchet MS"><span lang=FR style='font-size:11.0pt;
font-family:"Trebuchet MS";color:black'>Email: </span></font><font size=2
color=black face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:black'><a href="mailto:selina.sun@zyxel.cn"
title="mailto:sting.hu@zyxel..cn"><font face="Trebuchet MS"><span
style='font-family:"Trebuchet MS"'>selina.sun@zyxel.cn</span></font></a></span></font><font
size=2 color=blue face="Trebuchet MS"><span lang=FR style='font-size:11.0pt;
font-family:"Trebuchet MS";color:blue'> </span></font><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=navy face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:
Helvetica;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoTitle style='margin:0cm;margin-bottom:.0001pt'><font size=2
color=black face=Helvetica><span lang=EN-US style='font-size:11.0pt;font-family:
Helvetica;color:black'>Did you check </span></font><font size=2 color=navy
face=Helvetica><span lang=FR style='font-size:11.0pt;font-family:Helvetica;
color:navy'><a href="http://www.zyxel.cn/" title="http://www.zyxel.cn/"><strong><b><font
face=Helvetica><span style='font-family:Helvetica;text-decoration:none'><span
title="http://www.zyxel.cn/">www.zyxel.cn</span></span></font></b></strong></a></span></font><strong><b><font
size=2 color=black face=Helvetica><span lang=FR style='font-size:11.0pt;
font-family:Helvetica;color:black'> </span></font></b></strong><font size=2
color=black face=Helvetica><span lang=EN-US style='font-size:11.0pt;font-family:
Helvetica;color:black'>today?</span></font><font size=2 color=navy
face=Helvetica><span lang=EN-US style='font-size:11.0pt;font-family:Helvetica;
color:navy'><o:p></o:p></span></font></p>
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