[jira] [Created] (DISPATCH-798) Policy description in Dispatch Router book seems to be incorrect

["Kai Hudalla (JIRA)" <ji...@apache.org>]

Kai Hudalla created DISPATCH-798:
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             Summary: Policy description in Dispatch Router book seems to be incorrect
                 Key: DISPATCH-798
                 URL: https://issues.apache.org/jira/browse/DISPATCH-798
             Project: Qpid Dispatch
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 0.8.0
            Reporter: Kai Hudalla


Hi,

example 4 from section 3.6.5 of the Dispatch Router book seems to be incorrect in that it suggests that the *maxSessionWindow* can be used to set the number of frames that can be buffered unsettled. However, from a recent discussion on the mailing list [1], my understanding is that *maxSessionWindow* needs to be set to the total number of bytes that can be buffered, i.e. maxSessionWindow = maxFrameSize * number of frames to buffer.

Section 4.4.3 on configuring listeners actually describes how *maxSessionFrames* can be used to set the maximum number of frames to buffer in a session. To me this is the more user friendly approach (since it leaves the calculations to the machine) and should be adopted in the policy definition as well.

[1] http://qpid.2158936.n2.nabble.com/Dispatch-Router-throughput-tp7664757.html



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