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    • Michael Hanselmann's avatar
      gnt-node migrate: Use LU-generated jobs · b7a1c816
      Michael Hanselmann authored
      
      
      Until now LUNodeMigrate used multiple tasklets to evacuate all primary
      instances on a node. In some cases it would acquire all node locks,
      which isn't good on big clusters. With upcoming improvements to the LUs
      for instance failover and migration, switching to separate jobs looks
      like a better option. This patch changes LUNodeMigrate to use
      LU-generated jobs.
      
      While working on this patch, I identified a race condition in
      LUNodeMigrate.ExpandNames. A node's instances were retrieved without a
      lock and no verification was done.
      
      For RAPI, a new feature string is added and can be used to detect
      clusters which support more parameters for node migration. The client
      is updated.
      Signed-off-by: default avatarMichael Hanselmann <hansmi@google.com>
      Reviewed-by: default avatarIustin Pop <iustin@google.com>
      Signed-off-by: default avatarMichael Hanselmann <hansmi@google.com>
      b7a1c816
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