Set appropriately the Pacemaker option no-quorum-policy
When the cluster does not have quorum (less than 3 Elasticsearch nodes) the 'no-quorum policiy' is set to 'ignore', which allows to continue all resource management. If the cluster have quorum (more that 2 nodes), the policy is set to 'stop', which stops all resources in the affected cluster partition if the cluster loses quorum to avoid data corruption. http://clusterlabs.org/doc/en-US/Pacemaker/1.0/html/Pacemaker_Explained/s-cluster-options.html Change-Id: I3b1ad071e4bf31581f245bbd8de863e6266ffb5b
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# Copyright 2016 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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prepare_network_config(hiera('network_scheme', {}))
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$corosync_roles = hiera_array('lma::corosync_roles')
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$network_metadata = hiera('network_metadata')
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$nodes = get_nodes_hash_by_roles($network_metadata, $corosync_roles)
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Cs_property {
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provider => 'crm',
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}
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if count($nodes) > 2 {
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$policy = 'stop'
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} else {
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$policy = 'ignore'
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}
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cs_property { 'no-quorum-policy':
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ensure => present,
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value => $policy,
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}
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@ -143,3 +143,17 @@
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timeout: 600
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reexecute_on:
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- deploy_changes
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# This task needs to be reexecuted to reconfigure the no-quorum-policy each
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# time the cluster is scaled.
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- id: lma-enable-quorum
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type: puppet
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groups: [primary-elasticsearch_kibana]
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requires: [lma-es-kibana-haproxy]
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required_for: [deploy_end]
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parameters:
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puppet_manifest: "puppet/manifests/enable_quorum.pp"
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puppet_modules: "puppet/modules"
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timeout: 120
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reexecute_on:
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- deploy_changes
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