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Posted to dev@qpid.apache.org by "Lorenz Quack (JIRA)" <ji...@apache.org> on 2017/08/31 10:02:00 UTC

[jira] [Comment Edited] (QPID-7872) [Java Broker] [AMQP 1.0] Message expiry should be driven from ttl header only

    [ https://issues.apache.org/jira/browse/QPID-7872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148760#comment-16148760 ] 

Lorenz Quack edited comment on QPID-7872 at 8/31/17 10:01 AM:
--------------------------------------------------------------

If when adjusting the TTL the TTL falls to or below zero we set it to zero.
Unfortunately, other parts of the code consider a TTL of zero as "not set".
So, instead of expiring a message the change disables expiration. not good.

IMHO, a TTL of zero would mean it expired and should be deleted at the next opportune moment.
I would then consider a negative value or null to mean disabled/"not set". I have not checked whether that would conflict with any of the specs (unsigned int?) or (possibly broken) clients.

Also it seems that we are not adjusting the expiry/TTL on the other protocols.


was (Author: lorenz.quack):
If when adjusting the TTL the TTL falls to or below zero we set it to zero.
Unfortunately, other parts of the code consider a TTL of zero as "not set".
So, instead of expiring a message the change disables expiration. not good.

IMHO, a TTL of zero would mean it expired and should be deleted at the next opportune moment.
I would then consider a negative value or null to mean disabled/"not set". I have not checked whether that would conflict with any of the specs (unsigned int?) or (possibly broken) clients.

> [Java Broker] [AMQP 1.0] Message expiry should be driven from ttl header only
> -----------------------------------------------------------------------------
>
>                 Key: QPID-7872
>                 URL: https://issues.apache.org/jira/browse/QPID-7872
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>            Reporter: Alex Rudyy
>             Fix For: qpid-java-broker-7.0.0
>
>
> Java broker should only discard message with ttl header set if TTL expires including 0 values. Ensure TTL is adjusted before sending the message.



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