[jira] [Updated] (QPID-5850) Session names longer than 256 bytes cause errors when encoding session management objects

["Ernest Allen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/QPID-5850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ernest Allen updated QPID-5850:
-------------------------------

    Attachment: bz693721.patch

The patch (From Ernie Allen) adds a new field to the management schema for session that can contain the full session name. It also truncates the session name if needed before storing in the existing field. 

> Session names longer than 256 bytes cause errors when encoding session management objects
> -----------------------------------------------------------------------------------------
>
>                 Key: QPID-5850
>                 URL: https://issues.apache.org/jira/browse/QPID-5850
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.22
>            Reporter: Ernest Allen
>         Attachments: bz693721.patch
>
>
> AMQP 0-10 allows session names to be up to 2^16 bytes long; the QMF management schema for the broker however defines the name of a session object as being up to 2^8 bytes long. If a session is created with a name greater than 256 bytes, the broker cannot send out management objects for it i.e. periodic processing fails.
> Python reproducer:
> from qpid.messaging import *
> session = Connection.establish("localhost:5672").session(name="a"*1024)
> session.sync()
> raw_input('Press Enter: ')
> # in a separate window use qpid-tool to view session info
> session.close()
> The proposed solution is to:
> - add a new field in the management session schema that can hold the full session name
> - truncate the session name (if needed) when copied to the existing field



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