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  1. Droids
  2. DROIDS-48

Support prioritizing in the TaskQueue

    Details

    • Type: New Feature
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 0.1.0
    • Fix Version/s: None
    • Component/s: core
    • Labels:
      None

      Description

      Use case:

      • when looping a directory, (imagine someone is too stupid and dunno the dmoz database can be downloaded and try to crawl it with Droids) we got collect a lot of links that will be handled later. assume the requirement is to fetch dmoz directory +1 link outside dmoz.org, In the original mechanism, it will keep adding new links to the TaskQueue. Ideally, there should be a mechanism to give a higher priority to the non-dmoz.org links, so when non-dmoz links are added, they are processed first, and be removed from the TaskQueue asap.

      with the patch in DROIDS-47, a constructor is added to the SimpleTaskQueue to support a custom Queue. This issue suggests to change the SimpleTaskQueue to use a PriorityBlockingQueue by default, and add a getWeight to the Task interface

      I'm also thinking about a more complex TaskQueue. to be discussed in the mail list later.

        Attachments

        1. DROIDS-48d2.patch
          3 kB
          Mingfai Ma
        2. DROIDS-48d.patch
          9 kB
          Mingfai Ma

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              mingfai Mingfai Ma
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              Dates

              • Created:
                Updated: