[ClusterLabs] Trouble with drbd/pacemaker: switch to secondary/secondary

Anne Nicolas ennael1 at gmail.com
Sat Oct 15 11:48:43 CEST 2016 

Anne
http://mageia.org

Le 15 oct. 2016 9:02 AM, "Jay Scott" <bigcrater at gmail.com> a écrit :
>
>
> Well, I'm a newbie myself.  But this:
> drbdadm primary --force ___the name of the drbd res___
> has worked for me.  But I'm having lots of trouble myself,
> so...
> then there's this:
> drbdadm -- --overwrite-data-of-peer primary bravo
> (bravo happens to be my drbd res) and that should also
> strongarm one machine or another to be the primary.
>

Well I used those commands it goes to primary but I czn see then pacemaker
switching it to secondary after some secondd
> j.
>
> On Fri, Oct 14, 2016 at 3:22 PM, Anne Nicolas <ennael1 at gmail.com> wrote:
>>
>> Hi!
>>
>> I'm having trouble with a 2 nodes cluster used for DRBD / Apache / Samba
>> and some other services.
>>
>> Whatever I do, it always goes to the following state:
>>
>> Last updated: Fri Oct 14 17:41:38 2016
>> Last change: Thu Oct 13 10:42:29 2016 via cibadmin on bzvairsvr
>> Stack: corosync
>> Current DC: bzvairsvr (168430081) - partition with quorum
>> Version: 1.1.8-9.mga5-394e906
>> 2 Nodes configured, unknown expected votes
>> 13 Resources configured.
>>
>>
>> Online: [ bzvairsvr bzvairsvr2 ]
>>
>>  Master/Slave Set: drbdservClone [drbdserv]
>>      Slaves: [ bzvairsvr bzvairsvr2 ]
>>  Clone Set: fencing [st-ssh]
>>      Started: [ bzvairsvr bzvairsvr2 ]
>>
>> When I reboot bzvairsvr2 this one goes primary again. But after a while
>> becomes secondary also.
>> I use a very basic fencing system based on ssh. It's not optimal but
>> enough for the current tests.
>>
>> Here are information about the configuration:
>>
>> node 168430081: bzvairsvr
>> node 168430082: bzvairsvr2
>> primitive apache apache \
>>         params configfile="/etc/httpd/conf/httpd.conf" \
>>         op start interval=0 timeout=120s \
>>         op stop interval=0 timeout=120s
>> primitive clusterip IPaddr2 \
>>         params ip=192.168.100.1 cidr_netmask=24 nic=eno1 \
>>         meta target-role=Started
>> primitive clusterroute Route \
>>         params destination="0.0.0.0/0" gateway=192.168.100.254
>> primitive drbdserv ocf:linbit:drbd \
>>         params drbd_resource=server \
>>         op monitor interval=30s role=Slave \
>>         op monitor interval=29s role=Master start-delay=30s
>> primitive fsserv Filesystem \
>>         params device="/dev/drbd/by-res/server" directory="/Server"
>> fstype=ext4 \
>>         op start interval=0 timeout=60s \
>>         op stop interval=0 timeout=60s \
>>         meta target-role=Started
>> primitive libvirt-guests systemd:libvirt-guests
>> primitive libvirtd systemd:libvirtd
>> primitive mysql systemd:mysqld
>> primitive named systemd:named
>> primitive samba systemd:smb
>> primitive st-ssh stonith:external/ssh \
>>         params hostlist="bzvairsvr bzvairsvr2"
>> group iphd clusterip clusterroute \
>>         meta target-role=Started
>> group services libvirtd libvirt-guests apache named mysql samba \
>>         meta target-role=Started
>> ms drbdservClone drbdserv \
>>         meta master-max=1 master-node-max=1 clone-max=2 clone-node-max=1
>> notify=true target-role=Started
>> clone fencing st-ssh
>> colocation fs_on_drbd inf: fsserv drbdservClone:Master
>> colocation iphd_on_services inf: iphd services
>> colocation services_on_fsserv inf: services fsserv
>> order fsserv-after-drbdserv inf: drbdservClone:promote fsserv:start
>> order services_after_fsserv inf: fsserv services
>> property cib-bootstrap-options: \
>>         dc-version=1.1.8-9.mga5-394e906 \
>>         cluster-infrastructure=corosync \
>>         no-quorum-policy=ignore \
>>         stonith-enabled=true \
>>
>> cluster logs are flooded by :
>> Oct 14 17:42:28 [3445] bzvairsvr      attrd:   notice:
>> attrd_trigger_update:    Sending flush op to all hosts for:
>> master-drbdserv (10000)
>> Oct 14 17:42:28 [3445] bzvairsvr      attrd:   notice:
>> attrd_perform_update:    Sent update master-drbdserv=10000 failed:
>> Transport endpoint is not connected
>> Oct 14 17:42:28 [3445] bzvairsvr      attrd:   notice:
>> attrd_perform_update:    Sent update -107: master-drbdserv=10000
>> Oct 14 17:42:28 [3445] bzvairsvr      attrd:  warning:
>> attrd_cib_callback:      Update master-drbdserv=10000 failed: Transport
>> endpoint is not connected
>> Oct 14 17:42:59 [3445] bzvairsvr      attrd:   notice:
>> attrd_trigger_update:    Sending flush op to all hosts for:
>> master-drbdserv (10000)
>> Oct 14 17:42:59 [3445] bzvairsvr      attrd:   notice:
>> attrd_perform_update:    Sent update master-drbdserv=10000 failed:
>> Transport endpoint is not connected
>> Oct 14 17:42:59 [3445] bzvairsvr      attrd:   notice:
>> attrd_perform_update:    Sent update -107: master-drbdserv=10000
>> Oct 14 17:42:59 [3445] bzvairsvr      attrd:  warning:
>> attrd_cib_callback:      Update master-drbdserv=10000 failed: Transport
>> endpoint is not connected
>>
>>
>> And here is dmesg
>>
>> [34067.547147] block drbd0: peer( Secondary -> Primary )
>> [34091.023206] block drbd0: peer( Primary -> Secondary )
>> [34096.616319] drbd server: peer( Secondary -> Unknown ) conn( Connected
>> -> TearDown ) pdsk( UpToDate -> DUnknown )
>> [34096.616353] drbd server: asender terminated
>> [34096.616358] drbd server: Terminating drbd_a_server
>> [34096.682874] drbd server: Connection closed
>> [34096.682894] drbd server: conn( TearDown -> Unconnected )
>> [34096.682897] drbd server: receiver terminated
>> [34096.682900] drbd server: Restarting receiver thread
>> [34096.682902] drbd server: receiver (re)started
>> [34096.682915] drbd server: conn( Unconnected -> WFConnection )
>> [34103.311898] drbd server: Handshake successful: Agreed network
>> protocol version 101
>> [34103.311903] drbd server: Agreed to support TRIM on protocol level
>> [34103.311997] drbd server: Peer authenticated using 20 bytes HMAC
>> [34103.312046] drbd server: conn( WFConnection -> WFReportParams )
>> [34103.312062] drbd server: Starting asender thread (from drbd_r_server
>> [4344])
>> [34103.380311] block drbd0: drbd_sync_handshake:
>> [34103.380318] block drbd0: self
>> 8B500BD87A5D76D4:0000000000000000:A1860E99AC8107A0:A1850E99AC8107A0
>> bits:0 flags:0
>> [34103.380323] block drbd0: peer
>> 8B500BD87A5D76D4:0000000000000000:A1860E99AC8107A0:A1850E99AC8107A0
>> bits:0 flags:0
>> [34103.380327] block drbd0: uuid_compare()=0 by rule 40
>> [34103.380335] block drbd0: peer( Unknown -> Secondary ) conn(
>> WFReportParams -> Connected ) pdsk( DUnknown -> UpToDate )
>> [34114.046443] bnx2x 0000:05:00.0 enp5s0f0: NIC Link is Down
>> [34123.802580] drbd server: PingAck did not arrive in time.
>> [34123.802617] drbd server: peer( Secondary -> Unknown ) conn( Connected
>> -> NetworkFailure ) pdsk( UpToDate -> DUnknown )
>> [34123.802773] drbd server: asender terminated
>> [34123.802777] drbd server: Terminating drbd_a_server
>> [34123.932565] drbd server: Connection closed
>> [34123.932585] drbd server: conn( NetworkFailure -> Unconnected )
>> [34123.932588] drbd server: receiver terminated
>> [34123.932590] drbd server: Restarting receiver thread
>> [34123.932592] drbd server: receiver (re)started
>> [34123.932605] drbd server: conn( Unconnected -> WFConnection )
>> [34185.719207] bnx2x 0000:05:00.0 enp5s0f0: NIC Link is Up, 10000 Mbps
>> full duplex, Flow control: ON - receive & transmit
>> [34232.241599] bnx2x 0000:05:00.0 enp5s0f0: NIC Link is Down
>> [34268.637861] bnx2x 0000:05:00.0 enp5s0f0: NIC Link is Up, 10000 Mbps
>> full duplex, Flow control: ON - receive & transmit
>> [34318.675122] drbd server: Handshake successful: Agreed network
>> protocol version 101
>> [34318.675128] drbd server: Agreed to support TRIM on protocol level
>> [34318.675218] drbd server: Peer authenticated using 20 bytes HMAC
>> [34318.675258] drbd server: conn( WFConnection -> WFReportParams )
>> [34318.675276] drbd server: Starting asender thread (from drbd_r_server
>> [4344])
>> [34318.738909] block drbd0: drbd_sync_handshake:
>> [34318.738916] block drbd0: self
>> 8B500BD87A5D76D4:0000000000000000:A1860E99AC8107A0:A1850E99AC8107A0
>> bits:0 flags:0
>> [34318.738921] block drbd0: peer
>> 8B500BD87A5D76D4:0000000000000000:A1860E99AC8107A0:A1850E99AC8107A0
>> bits:0 flags:0
>> [34318.738924] block drbd0: uuid_compare()=0 by rule 40
>> [34318.738933] block drbd0: peer( Unknown -> Secondary ) conn(
>> WFReportParams -> Connected ) pdsk( DUnknown -> UpToDate )
>> [34328.812317] block drbd0: peer( Secondary -> Primary )
>> [37316.065793] usb 3-11: USB disconnect, device number 3
>> [52246.642265] block drbd0: peer( Primary -> Secondary )
>>
>> Any help would be appreciated
>>
>> Cheers
>>
>> --
>> Anne Nicolas
>> http://mageia.org
>>
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>
>
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