parent
5d73974e95
commit
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@ -275,13 +275,13 @@ class NodeInstance(object):
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#
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# A ----------------------------------------------------------------- SYNC (candidate)
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# B ----------------------------------------------------------------- SYNC (current)
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# 1. Stop client API ||
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# 2. Stop metadata API ||
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# 3. Stop DNS aggregator ||
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# 4. Stop DHCP servers ||
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# 1. Stop DNS aggregator ||
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# 2. Stop DHCP servers ||
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# 4a) network 1 ||
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# 4b) network 2 ||
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# etc. ||
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# 3. Stop client API ||
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# 4. Stop metadata API ||
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# --
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# C ----------------------------------------------------------------- SYNC (candidate)
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# 5. Remove upstream floating IP 1. Add upstream floating IP ||
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@ -300,13 +300,13 @@ class NodeInstance(object):
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# --
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# G ----------------------------------------------------------------- SYNC (candidate)
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# 5. Transition Patroni primary ||
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# 6. Start DHCP servers ||
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# 6. Start client API ||
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# 7. Start metadata API ||
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# 8. Start DHCP servers ||
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# 5a) network 1 ||
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# 5b) network 2 ||
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# etc. ||
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# 7. Start DNS aggregator ||
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# 8. Start metadata API ||
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# 9. Start client API ||
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# 9. Start DNS aggregator ||
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# --
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######
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def become_primary(self):
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@ -468,22 +468,22 @@ class NodeInstance(object):
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patroni_failed = False
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time.sleep(0.2)
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break
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# 6. Start DHCP servers
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for network in self.d_network:
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self.d_network[network].startDHCPServer()
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# 7. Start DNS aggregator; just continue if we fail
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if not patroni_failed:
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self.dns_aggregator.start_aggregator()
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else:
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self.logger.out('Not starting DNS aggregator due to Patroni failures', state='e')
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# 8. Start metadata API; just continue if we fail
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self.metadata_api.start()
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# 9. Start client API (and provisioner worker)
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# 6. Start client API (and provisioner worker)
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if self.config['enable_api']:
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self.logger.out('Starting PVC API client service', state='i')
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common.run_os_command("systemctl start pvc-api.service")
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self.logger.out('Starting PVC Provisioner Worker service', state='i')
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common.run_os_command("systemctl start pvc-provisioner-worker.service")
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# 7. Start metadata API; just continue if we fail
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self.metadata_api.start()
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# 8. Start DHCP servers
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for network in self.d_network:
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self.d_network[network].startDHCPServer()
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# 9. Start DNS aggregator; just continue if we fail
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if not patroni_failed:
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self.dns_aggregator.start_aggregator()
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else:
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self.logger.out('Not starting DNS aggregator due to Patroni failures', state='e')
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self.logger.out('Releasing write lock for synchronization G', state='i')
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zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
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lock.release()
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@ -513,21 +513,21 @@ class NodeInstance(object):
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lock.acquire()
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self.logger.out('Acquired write lock for synchronization B', state='o')
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time.sleep(0.2) # Time for reader to acquire the lock
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# 1. Stop client API
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if self.config['enable_api']:
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self.logger.out('Stopping PVC API client service', state='i')
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common.run_os_command("systemctl stop pvc-api.service")
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# 2. Stop metadata API
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self.metadata_api.stop()
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# 3. Stop DNS aggregator
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# 1. Stop DNS aggregator
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self.dns_aggregator.stop_aggregator()
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# 4. Stop DHCP servers
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# 2. Stop DHCP servers
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for network in self.d_network:
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self.d_network[network].stopDHCPServer()
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self.logger.out('Releasing write lock for synchronization B', state='i')
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zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
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lock.release()
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self.logger.out('Released write lock for synchronization B', state='o')
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# 3. Stop client API
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if self.config['enable_api']:
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self.logger.out('Stopping PVC API client service', state='i')
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common.run_os_command("systemctl stop pvc-api.service")
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# 4. Stop metadata API
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self.metadata_api.stop()
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time.sleep(0.1) # Time for new writer to acquire the lock
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# Synchronize nodes C (I am reader)
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