Uploaded image for project: 'Qpid'
  1. Qpid
  2. QPID-2714

"Programming in Apache Qpid" doesn't discuss capacity/credit

Attach filesAttach ScreenshotVotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 0.7
    • None
    • C++ Documentation
    • None

    Description

      My comments grew out of looking at the C++ messaging API, though this probably applies to Python and .NET as well.

      During a discussion on users@qpid I initiated recently I learned that creating a number of Receivers and calling session.nextReceiver() to wait for a message on any of the Receivers doesn't work unless some capacity is granted to the Receivers first. This is different from simply calling fetch() on a Receiver with no capacity - in that case the client code issues credit behind the scenes.

      The code example shown in section 6 won't work (I used something very similar in a program I wrote, and it didn't for the reason above). I'll attach a patch that fixes the C++ code example, but there should be an introduction/discussion of the whole topic of capacity, credit, acks, etc.

      Attachments

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            Unassigned Unassigned
            shuston Stephen D. Huston
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment