[Linux-HA] Help : DRBD,
Heartbeat (Active-Active Node configuration)
fabiomm at br.ibm.com
fabiomm at br.ibm.com
Thu May 24 07:06:38 MDT 2007
Hi Jugal!
linux-ha-bounces at lists.linux-ha.org wrote on 24/05/2007 07:33:22:
> Hi All,
>
> I have done the configuration of DRBD with the help of heartbeat.
>
> Anybody please guide me how to do the Active/Active Node
> configuration with the help of Heartbeat and DRBD.
>
> I need the DRBD works like Merge Replication, So, it captures all
> the changes from both MySQL Databases and merege them in Both. So in
> my case both mysql server is active.
In this case you must have different active disks or each node. For
example, in node A you will have the disk drbd0 active and the same disk
passive in node B. In node B you must have the drbd1 as active and the
same disk as passive to node A.
If you want to have all the disks mounted on both nodes, you need
something like GPFS.
Here follows a cib.xml example for what you need. In this case I'm
starting the drbd0 and drbd2 on the node s0580crmdb2pr1 as primary disk
and mounting them. On node s0580crmdb2pr2 I'm starting the disks drbd1 and
drbd3 as primary and mounting them.
Considering that I am using the drbddisk resource (from version 1), the
drbd must be already running (service drbd start;chkconfig --level 35 drbd
on):
<cib admin_epoch="0" have_quorum="true" num_peers="1"
cib_feature_revision="1.3" generated="true" ccm_transition="11"
dc_uuid="a985c07a-84e9-4062-a57c-9cbb3799b5ed" epoch="47"
num_updates="1989" crm-debug-origin="create_node_entry"
cib-last-written="Tue May 22 14:12:25 2007">
<configuration>
<crm_config>
<cluster_property_set id="cib-bootstrap-options">
<attributes>
<nvpair id="cib-bootstrap-options-symmetric_cluster"
name="symmetric_cluster" value="true"/>
<nvpair id="cib-bootstrap-options-no_quorum_policy"
name="no_quorum_policy" value="stop"/>
<nvpair id="cib-bootstrap-options-default_resource_stickiness"
name="default_resource_stickiness" value="0"/>
<nvpair
id="cib-bootstrap-options-default_resource_failure_stickiness"
name="default_resource_failure_stickiness" value="0"/>
<nvpair name="stonith_enabled"
id="cib-bootstrap-options-stonith_enabled" value="False"/>
<nvpair id="cib-bootstrap-options-stonith_action"
name="stonith_action" value="reboot"/>
<nvpair id="cib-bootstrap-options-stop_orphan_resources"
name="stop_orphan_resources" value="false"/>
<nvpair id="cib-bootstrap-options-stop_orphan_actions"
name="stop_orphan_actions" value="true"/>
<nvpair id="cib-bootstrap-options-remove_after_stop"
name="remove_after_stop" value="false"/>
<nvpair id="cib-bootstrap-options-short_resource_names"
name="short_resource_names" value="true"/>
<nvpair id="cib-bootstrap-options-transition_idle_timeout"
name="transition_idle_timeout" value="120s"/>
<nvpair id="cib-bootstrap-options-default_action_timeout"
name="default_action_timeout" value="1200s"/>
<nvpair id="cib-bootstrap-options-is_managed_default"
name="is_managed_default" value="true"/>
<nvpair name="last-lrm-refresh"
id="cib-bootstrap-options-last-lrm-refresh" value="1161269979"/>
</attributes>
</cluster_property_set>
</crm_config>
<nodes>
<node id="a985c07a-84e9-4062-a57c-9cbb3799b5ed"
uname="s0580crmdb2pr2" type="normal"/>
<node id="e63ba264-c9e7-48a9-80a7-f6d12a22d4b0"
uname="s0580crmdb2pr1" type="normal"/>
</nodes>
<resources>
<group ordered="true" description="Grupo de recursos db2pr1"
restart_type="ignore" resource_stickiness="0" is_managed="default"
collocated="true" multiple_active="stop_start" id="group_db2pr1">
<primitive id="IP_db2pr1" class="ocf" type="IPaddr"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" description="IP utilizado pelo dbpr1"
multiple_active="stop_start">
<instance_attributes id="IP_db2pr1_instance_attrs">
<attributes>
<nvpair id="eb355e01-1f73-4ce7-9d43-edf0f160d77d" name="ip"
value="10.226.13.12"/>
<nvpair id="IP_db2pr1_target_role" name="target_role"
value="started"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd0" class="heartbeat" type="drbddisk"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd0_instance_attrs">
<attributes>
<nvpair id="resource_drbd0_target_role" name="target_role"
value="started"/>
<nvpair id="add7aa21-a89a-40a1-ab34-6c626d336629" name="1"
value="rmpath0-part1"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd2" class="heartbeat" type="drbddisk"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd2_instance_attrs">
<attributes>
<nvpair id="resource_drbd2_target_role" name="target_role"
value="started"/>
<nvpair id="cf0e6792-e667-47f0-9dc4-784b6e8f98a7" name="1"
value="rmpath2-part1"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd0_fs" class="ocf" type="Filesystem"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd0_fs_instance_attrs">
<attributes>
<nvpair id="resource_drbd0_fs_target_role"
name="target_role" value="started"/>
<nvpair id="3b4e294c-7521-46a6-b3d3-9c3df991e4d0"
name="device" value="/dev/drbd0"/>
<nvpair id="cfd540a4-989f-4a5f-a9a0-90f95d77bb20"
name="directory" value="/dbtbs"/>
<nvpair id="c9788a08-5070-45a0-beab-33b34cc6e2b2"
name="fstype" value="ext3"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd2_fs" class="ocf" type="Filesystem"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd2_fs_instance_attrs">
<attributes>
<nvpair id="resource_drbd2_fs_target_role"
name="target_role" value="started"/>
<nvpair id="343f1b2c-9f16-4aa1-8456-18c098ecc147"
name="device" value="/dev/drbd2"/>
<nvpair id="d6fea532-33ad-4574-a580-e0f6f358b691"
name="directory" value="/dbtemp"/>
<nvpair id="45441dad-ca3b-47a5-ae86-d10e5e636a2e"
name="fstype" value="ext3"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_db2_prod" class="ocf" type="db2"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" description="DB2 Producao"
multiple_active="stop_start">
<instance_attributes id="resource_db2_prod_instance_attrs">
<attributes>
<nvpair id="resource_db2_prod_target_role"
name="target_role" value="started"/>
<nvpair id="94c70633-51d4-4cd8-90d2-4e691be4f44f"
name="instance" value="db2admin"/>
</attributes>
</instance_attributes>
</primitive>
</group>
<group id="group_db2pr2" ordered="true" description="Grupo de
recursos db2pr2" restart_type="ignore" resource_stickiness="0"
is_managed="default" collocated="true" multiple_active="stop_start">
<primitive id="IP_db2pr2" class="ocf" type="IPaddr"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" description="IP utilizado pelo db2pr2"
multiple_active="stop_start">
<instance_attributes id="IP_db2pr2_instance_attrs">
<attributes>
<nvpair id="IP_db2pr2_target_role" name="target_role"
value="started"/>
<nvpair id="10c42a39-8feb-4bd7-a9e6-1b07c8f90b7e" name="ip"
value="10.226.13.13"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd1" class="heartbeat" type="drbddisk"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd1_instance_attrs">
<attributes>
<nvpair id="resource_drbd1_target_role" name="target_role"
value="started"/>
<nvpair id="59672e78-5be2-479b-aee9-e1ebee042022" name="1"
value="rmpath1-part1"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd3" class="heartbeat" type="drbddisk"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd3_instance_attrs">
<attributes>
<nvpair id="resource_drbd3_target_role" name="target_role"
value="started"/>
<nvpair id="418e16c6-c5a3-4dd8-8534-727c10bd182c" name="1"
value="rmpath2-part2"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd1_fs" class="ocf" type="Filesystem"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd1_fs_instance_attrs">
<attributes>
<nvpair id="resource_drbd1_fs_target_role"
name="target_role" value="started"/>
<nvpair id="ad6d9329-94ed-4d91-b72c-0e32a978de37"
name="device" value="/dev/drbd1"/>
<nvpair id="a7dc2e3e-d520-404b-9f41-d128e14ec6b9"
name="directory" value="/dbtbs2"/>
<nvpair id="14c454de-8310-42ab-9a3f-5ff303ed007f"
name="fstype" value="ext3"/>
</attributes>
</instance_attributes>
</primitive>
<primitive id="resource_drbd3_fs" class="ocf" type="Filesystem"
provider="heartbeat" restart_type="ignore" is_managed="default"
resource_stickiness="0" multiple_active="stop_start">
<instance_attributes id="resource_drbd3_fs_instance_attrs">
<attributes>
<nvpair id="resource_drbd3_fs_target_role"
name="target_role" value="started"/>
<nvpair id="a9a70879-a902-479f-a148-359b13b9ffe6"
name="device" value="/dev/drbd3"/>
<nvpair id="0479c1c6-3d70-4b12-a9d9-6b9328f208f8"
name="directory" value="/dblog"/>
<nvpair id="98451c5d-29bf-4469-8a7d-c22798020d6f"
name="fstype" value="ext3"/>
</attributes>
</instance_attributes>
</primitive>
</group>
</resources>
<constraints>
<rsc_location id="place_db2pr1" rsc="group_db2pr1">
<rule id="prefered_place_db2pr1" score="100">
<expression attribute="#uname"
id="745c2e82-e6cb-4c56-9611-797a2533a47d" operation="eq"
value="s0580crmdb2pr1"/>
</rule>
</rsc_location>
<rsc_location id="place_db2pr2" rsc="group_db2pr2">
<rule id="prefered_place_db2pr2" score="100">
<expression attribute="#uname"
id="4008e22f-7953-4398-bf10-4680d233ce1b" operation="eq"
value="s0580crmdb2pr2"/>
</rule>
</rsc_location>
</constraints>
</configuration>
</cib>
I hope it helps you! :)
Best Regards,
Fabio Martins
>
> Thanks in Advance.
>
> Please reply me as early as possible.
>
> Thanks & Regards,
> Jugal Shah
>
>
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