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  1. ONOS
  2. ONOS-6462

Intent stuck in WITHDRAWING state with FlowObjective intent compiler


    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.10.0
    • Component/s: None
    • Labels:
    • Story Points:
    • Epic Link:
    • Sprint:
      K Bug Sprint


      Steps to reproduce:

      cfg set org.onosproject.provider.nil.NullProviders deviceCount 7
      cfg set org.onosproject.provider.nil.NullProviders topoShape linear
      cfg set org.onosproject.provider.nil.NullProviders enabled true
      cfg set org.onosproject.net.intent.impl.IntentManager skipReleaseResourcesOnWithdrawal true
      cfg set org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator useFlowObjectives true
      cfg set org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator defaultFlowObjectiveCompiler org.onosproject.net.intent.impl.compiler.LinkCollectionIntentObjectiveCompiler
      push-test-intents -i null:0000000000000001/6 null:0000000000000007/5 1 1
      push-test-intents -w null:0000000000000001/6 null:0000000000000007/5 1 1

      Update from Yi Tseng
      Reasons makes Intent stuck in WITHDRAWING state:
      1. The patch for CORD-1180 caused next objective queued in the objective system if there is no next group for that next objective.

      2. Default single table pipeline removes next group from flow objective store when removing forwarding objective.

      3. The flow objective Intent installer will remove forwarding objective first, then remove next objective.

      4. The flow objective Intent install will wait until all objective context completed, however, according to reason 1, 2 and 3, the next objective will be queued forever since there will be no next group in the store.
      So the Intent state will stuck in WITHDRAWING until the Intent manager retry.

      To fix this issue, we need to modify default single table pipeline, make it not remove next group when removing forwarding objective.


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            • Assignee:
              trtc008056 Yi Tseng
              You You Wang
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              • Created: