Class: Dcmgr::NodeModules::Scheduler

Inherits:
Isono::NodeModules::Base
  • Object
show all
Includes:
Logger
Defined in:
lib/dcmgr/node_modules/scheduler.rb

Instance Method Summary collapse

Methods included from Logger

create, default_logdev, included

Instance Method Details

#schedule_instance(instance_id) ⇒ Object 



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# File 'lib/dcmgr/node_modules/scheduler.rb', line 25

def schedule_instance(instance_id)
  instance = Models::Instance[instance_id]
  vol = Models::Volume.find(:instance_id=>instance.id, :boot_dev=>1)
  
  Dcmgr::Scheduler.host_node.schedule(instance)
  Dcmgr::Scheduler.network.schedule(instance)
  lease_ip_address_to_instance(instance)
  instance.save
  
  instance.state = :pending
  instance.save


  case instance.image.boot_dev_type
  when Models::Image::BOOT_DEV_SAN
    Dcmgr::Scheduler.storage_node.schedule(vol)
    vol.state = :pending
    vol.save
    
    commit_transaction
    
    repository_address = Dcmgr::StorageService.repository_address(vol.snapshot.destination_key)
    self.job.submit("sta-handle.#{vol.storage_node.node_id}",
                    'create_volume_and_run_instance', vol.canonical_uuid, instance.canonical_uuid, repository_address)
  when Models::Image::BOOT_DEV_LOCAL
    commit_transaction
    self.job.submit("hva-handle.#{instance.host_node.node_id}",
                    'run_local_store', instance.canonical_uuid)
  else
    raise "Unknown boot type"
  end
  event.publish('instance.scheduled', :args=>[instance.canonical_uuid])
  
rescue ::Exception => e
  rollback_transaction rescue nil
  
  logger.error(e)
  instance.destroy if instance
  vol.destroy if vol
  return
end

#schedule_instance_ha(instance_id, vol) ⇒ Object 



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# File 'lib/dcmgr/node_modules/scheduler.rb', line 67

def schedule_instance_ha(instance_id, vol)
  instance = Models::Instance[instance_id]
  
  Dcmgr::Scheduler.host_node_ha.schedule(instance)
  # Don't re-schedule network here.
  # The IP address, MAC address and NIC must be assigned with same address.
  instance.save
  
  instance.state = :pending
  instance.save

  commit_transaction
  case instance.image.boot_dev_type
  when Models::Image::BOOT_DEV_SAN
    self.job.submit("hva-handle.#{instance.host_node.node_id}", 'run_vol_store', instance.canonical_uuid, vol.canonical_uuid)
  when Models::Image::BOOT_DEV_LOCAL
    self.job.submit("hva-handle.#{instance.host_node.node_id}", 'run_local_store', instance.canonical_uuid)
  else
    raise "Unknown boot type"
  end
  event.publish('instance.scheduled', :args=>[instance.canonical_uuid])
  
rescue ::Exception => e
  rollback_transaction rescue nil
  
  logger.error(e)
  instance.destroy if instance
  vol.destroy if vol
  return
end

#schedule_start_instance(instance_id) ⇒ Object 



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# File 'lib/dcmgr/node_modules/scheduler.rb', line 98

def schedule_start_instance(instance_id)
  instance = Models::Instance[instance_id]
  vol = Models::Volume.find(:instance_id=>instance.id, :boot_dev=>1)
  
  Dcmgr::Scheduler.host_node.schedule(instance)
  lease_ip_address_to_instance(instance)
  instance.save
  
  instance.state = :pending
  instance.save

  commit_transaction
  case instance.image.boot_dev_type
  when Models::Image::BOOT_DEV_SAN
    self.job.submit("hva-handle.#{instance.host_node.node_id}", 'run_vol_store', instance.canonical_uuid, vol.canonical_uuid)
  when Models::Image::BOOT_DEV_LOCAL
    self.job.submit("hva-handle.#{instance.host_node.node_id}", 'run_local_store', instance.canonical_uuid)
  else
    raise "Unknown boot type"
  end
  event.publish('instance.scheduled', :args=>[instance.canonical_uuid])
  
rescue ::Exception => e
  rollback_transaction rescue nil
  
  logger.error(e)
  instance.destroy if instance
  vol.destroy if vol
  return
end

#schedule_volume(volume_id) ⇒ Object 



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# File 'lib/dcmgr/node_modules/scheduler.rb', line 129

def schedule_volume(volume_id)
  volume = Models::Volume[volume_id]
  
  Dcmgr::Scheduler.storage_node.schedule(volume)
  volume.save

  volume.state = :pending
  volume.save
  
  commit_transaction
  
  repository_address = nil
  if volume.snapshot
    repository_address = Dcmgr::StorageService.repository_address(volume.snapshot.destination_key)
  end
        
  self.job.submit("sta-handle.#{volume.storage_node.node_id}",
                  'create_volume', volume.canonical_uuid, repository_address)
rescue ::Exception => e
  rollback_transaction rescue nil

  logger.error(e)
  volume.destroy
end