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drbd-user: Re: [DRBD-user] drbd master to slave synchronisation

Re: [DRBD-user] drbd master to slave synchronisation under heartbeat

From: avn <avn_at_nospam>
Date: Tue Mar 09 2010 - 09:53:20 GMT
To: drbd-user@lists.linbit.com

Hi,
Thanks for reply.
Here is the cat /proc/drbd from both servers in set 1 ( I think that if we
solve one, I will manage to do the second set by myself):

1_mail-Master
version: 8.3.7 (api:88/proto:86-91)
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by root@1_mail,
2010-03-04 01:20:09
 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r----
    ns:15316224 nr:36296 dw:15352584 dr:130802 al:187 bm:118 lo:0 pe:0 ua:0
ap:0 ep:1 wo:d oos:0

2_mail-slave
version: 8.3.7 (api:88/proto:86-91)
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by root@2_mail,
2010-03-03 21:46:58
 0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r----
    ns:26104 nr:15337352 dw:15363456 dr:11941 al:57 bm:59 lo:0 pe:0 ua:0
ap:0 ep:1 wo:d oos:0

Andrei

Mark Watts wrote:
>
> On Mon, 2010-03-08 at 09:22 -0800, avn wrote:
>> Hello,
>> I tried to find a solution to my problem, but cannot find one either in
>> the
>> forum or google.
>> I have 2 sets of 2 boxes each set in HA setup. One set is heartbeat 2.14
>> with drbd 8.2.7, the other heartbeat 3.0.2-rc2, pacemaker 1.0.7 and drbd
>> 8.3.7. Both sets are gentoo 2.6.26 each box with drbd on top of raid1,
>> box
>> in sets interconnected by exclusive use gigabit nic. Both sets have the
>> same
>> config files:
>> global {
>> usage-count no;
>> }
>> common {
>> syncer { rate 100M; }
>> }
>> resource r0 {
>> protocol C;
>> handlers {
>> pri-on-incon-degr "echo o > /proc/sysrq-trigger ; reboot -f";
>> pri-lost-after-sb "echo o > /proc/sysrq-trigger ; reboot -f";
>> local-io-error "echo o > /proc/sysrq-trigger ; reboot -f";
>> outdate-peer "/usr/lib/heartbeat/drbd-peer-outdater -t 5";
>> }
>> startup {
>> degr-wfc-timeout 120; # 2 minutes.
>> }
>> disk {
>> on-io-error pass_on;
>> fencing resource-only;
>> }
>> net {
>> sndbuf-size 512k;
>> timeout 60; # 6 seconds (unit = 0.1 seconds)
>> connect-int 10; # 10 seconds (unit = 1 second)
>> ping-int 10; # 10 seconds (unit = 1 second)
>> ping-timeout 80; # 500 ms (unit = 0.1 seconds)
>> max-buffers 2048;
>> max-epoch-size 2048;
>> ko-count 4;
>> cram-hmac-alg "md5";
>> shared-secret "somesecret";
>> after-sb-0pri discard-younger-primary;
>> after-sb-1pri violently-as0p;
>> after-sb-2pri violently-as0p;
>> rr-conflict call-pri-lost;
>> }
>> syncer {
>> rate 100M;
>> al-extents 257;
>> }
>> on lbl1 {
>> device /dev/drbd0;
>> disk /dev/md3;
>> address 10.151.100.97:7788;
>> meta-disk internal;
>> }
>> on lbl2 {
>> device /dev/drbd0;
>> disk /dev/md3;
>> address 10.151.100.98:7788;
>> meta-disk internal;
>> }
>> }
>>
>>
>> Now when something happened, like me doing a wrong config of a service in
>> heartbeat which makes the slave becoming master, or when master is
>> powered
>> of unclean I bump into the following.
>> Some files in the new master are old versions (some time 1 month old),
>> not
>> necessary in order of modifications (modified file 1 on 1st day, 2nd on
>> second, etc, 1 and 3 and 4 and 6 are ok, 2 and 5 old version). Before
>> plugging off the master I verified that status was Primary/secondary and
>> Uptodate aon master and Sec/primary also uptodate on slave. Nothing in
>> logs.
>> This happen on both sets.
>> So I think I have a mistake somewhere, or I am not using the drbd right.
>>
>> Any ideea?
>
> Show /proc/drbd from all nodes, while the system is in what you believe
> to be a production state.
>
> Mark.
>
> --
> Mark Watts BSc RHCE MBCS
> Senior Systems Engineer, Managed Services Manpower
> www.QinetiQ.com
> QinetiQ - Delivering customer-focused solutions
> GPG Key: http://www.linux-corner.info/mwatts.gpg
>
>
> _______________________________________________
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>
>

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