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<p class=MsoNormal>Hello list,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have got the following configuration (tested out with drbd
version 2:8.3.2-1~bpo50+1 and 2:8.0.14-2) on two Debian Lenny/amd64 servers:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>global { usage-count no; }<o:p></o:p></p>
<p class=MsoNormal>common {<o:p></o:p></p>
<p class=MsoNormal> protocol C;<o:p></o:p></p>
<p class=MsoNormal> startup {<o:p></o:p></p>
<p class=MsoNormal> become-primary-on both;<o:p></o:p></p>
<p class=MsoNormal> wfc-timeout 60;<o:p></o:p></p>
<p class=MsoNormal> degr-wfc-timeout 60;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> disk { on-io-error detach; }<o:p></o:p></p>
<p class=MsoNormal> net {<o:p></o:p></p>
<p class=MsoNormal> allow-two-primaries;<o:p></o:p></p>
<p class=MsoNormal> after-sb-0pri discard-younger-primary;<o:p></o:p></p>
<p class=MsoNormal> after-sb-1pri discard-secondary;<o:p></o:p></p>
<p class=MsoNormal> after-sb-2pri call-pri-lost-after-sb;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal>}<o:p></o:p></p>
<p class=MsoNormal>resource r0 {<o:p></o:p></p>
<p class=MsoNormal> disk {<o:p></o:p></p>
<p class=MsoNormal> fencing resource-only;<o:p></o:p></p>
<p class=MsoNormal> on-io-error detach;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> syncer {<o:p></o:p></p>
<p class=MsoNormal> rate 100M;<o:p></o:p></p>
<p class=MsoNormal> al-extents 257;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> net {<o:p></o:p></p>
<p class=MsoNormal> after-sb-0pri disconnect;<o:p></o:p></p>
<p class=MsoNormal> after-sb-1pri disconnect;<o:p></o:p></p>
<p class=MsoNormal> after-sb-2pri disconnect;<o:p></o:p></p>
<p class=MsoNormal> rr-conflict disconnect;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> handlers {<o:p></o:p></p>
<p class=MsoNormal> pri-on-incon-degr "echo o > /proc/sysrq-trigger
; halt f";<o:p></o:p></p>
<p class=MsoNormal> pri-lost-after-sb "echo o > /proc/sysrq-trigger
; halt f";<o:p></o:p></p>
<p class=MsoNormal> local-io-error "echo o > /proc/sysrq-trigger ;
halt f";<o:p></o:p></p>
<p class=MsoNormal> outdate-peer "/usr/lib/heartbeat/drbd-peer-outdater
-t 5";<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> startup {<o:p></o:p></p>
<p class=MsoNormal> degr-wfc-timeout 120; # 2 minutes.<o:p></o:p></p>
<p class=MsoNormal> become-primary-on both;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> on mysql1 {<o:p></o:p></p>
<p class=MsoNormal> device /dev/drbd0;<o:p></o:p></p>
<p class=MsoNormal> disk /dev/sda4;<o:p></o:p></p>
<p class=MsoNormal> address 192.168.123.6:7789;<o:p></o:p></p>
<p class=MsoNormal> meta-disk internal;<o:p></o:p></p>
<p class=MsoNormal> }<o:p></o:p></p>
<p class=MsoNormal> on mysql2 {<o:p></o:p></p>
<p class=MsoNormal> device /dev/drbd0;<o:p></o:p></p>
<p class=MsoNormal> disk /dev/sdb1;<o:p></o:p></p>
<p class=MsoNormal> address 192.168.123.17:7789;<o:p></o:p></p>
<p class=MsoNormal> meta-disk internal;<o:p></o:p></p>
<p class=MsoNormal>}<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In the primary/secondary mode, everything is perfect, but if
I use the primary/primary mode and do the following, it fails:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]>Create a file foo.txt on mysql1<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]>Create a file blubb.txt on mysql2<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]>On both nodes, the file of the other one does
not appear<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]>If I umount the device, wait a few seconds and mount
it again, the file foo.txt (created on mysql1) appears on mysql2<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-family:Symbol'><span style='mso-list:Ignore'>·<span
style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]>The file blubb.txt (created on mysql2) is
deleted on both hosts<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>/proc/drbd looks everytime good.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>For example:<o:p></o:p></p>
<p class=MsoNormal>mysql1:~# cat /proc/drbd<o:p></o:p></p>
<p class=MsoNormal>version: 8.3.2 (api:88/proto:86-90)<o:p></o:p></p>
<p class=MsoNormal>GIT-hash: dd7985327f146f33b86d4bff5ca8c94234ce840e build by
phil@fat-tyre, 2009-07-03 15:35:39<o:p></o:p></p>
<p class=MsoNormal> 0: cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C
r---n<o:p></o:p></p>
<p class=MsoNormal> ns:4343908 nr:108 dw:4344016 dr:3337 al:4530 bm:0 lo:0
pe:0 ua:0 ap:0 ep:1 wo:b oos:0<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>mysql2:~# cat /proc/drbd<o:p></o:p></p>
<p class=MsoNormal>version: 8.3.2 (api:88/proto:86-90)<o:p></o:p></p>
<p class=MsoNormal>GIT-hash: dd7985327f146f33b86d4bff5ca8c94234ce840e build by
phil@fat-tyre, 2009-07-03 15:35:39<o:p></o:p></p>
<p class=MsoNormal> 0: cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C
r----<o:p></o:p></p>
<p class=MsoNormal> ns:108 nr:4343908 dw:4344016 dr:648 al:3 bm:0 lo:0 pe:0
ua:0 ap:0 ep:1 wo:b oos:0<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any ideas?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks in advance.<o:p></o:p></p>
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