10.3. 配置资源 meta 选项

流程

1. 创建一个 resource-stickiness 值为 50 的资源。

   # pcs resource create VirtualIP ocf:heartbeat:IPaddr2 ip=192.168.0.120 meta resource-stickiness=50

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2. 对于名为 dummy_resource 的现有资源，将 failure-timeout meta 选项设置为 20 秒，因此资源可以在 20 秒内尝试在同一节点上重启。

   # pcs resource meta dummy_resource failure-timeout=20s

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3. 显示资源的值，以验证是否设置了 failure-timeout=20s。

   # pcs resource config dummy_resource
    Resource: dummy_resource (class=ocf provider=heartbeat type=Dummy)
     Meta Attrs: failure-timeout=20s
     ...

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流程

1. 重置任何 ocf:pacemaker:pgsql 资源的默认值。

   # pcs resource defaults set create id=set-1 score=100 meta resource-stickiness=10 rule resource ocf:pacemaker:pgsql

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2. 以纯文本形式显示配置的资源默认值。

   # pcs resource defaults config
   Meta Attrs: build-resource-defaults
     resource-stickiness=1
   Meta Attrs: set-1 score=100
     resource-stickiness=10
     Rule: boolean-op=and score=INFINITY
       Expression: resource ocf:pacemaker:pgsql

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3. 显示从当前集群默认设置配置中创建的 pcs resource defaults 命令。

   # pcs resource defaults config --output-format=cmd
   pcs -- resource defaults set create id=build-resource-defaults \
     meta resource-stickiness=1;
   pcs -- resource defaults set create id=set-1 score=100 \
     meta resource-stickiness=10 \
     rule 'resource ocf:pacemaker:pgsql'

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4. 以 JSON 格式显示配置的资源默认值。

   # pcs resource defaults config --output-format=json
   {"instance_attributes": [], "meta_attributes": [{"id": "build-resource-defaults", "options": {}, "rule": null, "nvpairs": [{"id": "build-resource-stickiness", "name": "resource-stickiness", "value": "1"}]}, {"id": "set-1", "options": {"score": "100"}, "rule": {"id": "set-1-rule", "type": "RULE", "in_effect": "UNKNOWN", "options": {"boolean-op": "and", "score": "INFINITY"}, "date_spec": null, "duration": null, "expressions": [{"id": "set-1-rule-rsc-ocf-pacemaker-pgsql", "type": "RSC_EXPRESSION", "in_effect": "UNKNOWN", "options": {"class": "ocf", "provider": "pacemaker", "type": "pgsql"}, "date_spec": null, "duration": null, "expressions": [], "as_string": "resource ocf:pacemaker:pgsql"}], "as_string": "resource ocf:pacemaker:pgsql"}, "nvpairs": [{"id": "set-1-resource-stickiness", "name": "resource-stickiness", "value": "10"}]}]}

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