Christian Schneider created SLING-11914:
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Summary: Accept initial offset via PingMessage
Key: SLING-11914
URL: https://issues.apache.org/jira/browse/SLING-11914
Project: Sling
Issue Type: Improvement
Components: Content Distribution
Reporter: Christian Schneider
Assignee: Christian Schneider
When DistributionSubscriber does not yet have a stored offset it is in a
problematic state.
When a package message is sent and DistributionSubscriber starts late or
restarts it might miss the message.
This issue aim to improve the situation by accepting offsets via ping messages.
The messaging provider can send such a message immediately when the poller is
created to inform subscriber about the current offset on the topic. This offset
is then written to repository.
>From this point in time the timing problem is solved. No message after the
>stored offset can be lost.
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