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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/05/17 10:34:10 UTC
[GitHub] [pulsar] leiless opened a new issue #10610: QA: Pulsar multi-topic subscriptions questions
leiless opened a new issue #10610:
URL: https://github.com/apache/pulsar/issues/10610
Hi, Pulsar developers, I have a question about docs of multi-topics subscriptions.
> **No ordering guarantees across multiple topics** When a producer sends messages to a single topic, all messages are guaranteed to be read from that topic in the same order. However, these guarantees do not hold across multiple topics. So when a producer sends message to multiple topics, the order in which messages are read from those topics is not guaranteed to be the same.
https://pulsar.apache.org/docs/en/concepts-messaging/#multi-topic-subscriptions
My question is, in a multi-topic subscription, does the message order within a specific topic in the same order?
Say, my topics are `persistent://public/default/.*`, so does messages in topic `persistent://public/default/queue1` came in same order?
My assumption is that, for a specific topic within the regex subscription, the order is the same. however, messages from multiple topics may be interleaved.
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(Claim: this issue isn't an enhancement issue since I cannot find an appropriate label)
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[GitHub] [pulsar] linlinnn commented on issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
linlinnn commented on issue #10610:
URL: https://github.com/apache/pulsar/issues/10610#issuecomment-842221702
We guarantee the order of message from the same partition(One topic may have multi partitions).
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[GitHub] [pulsar] linlinnn edited a comment on issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
linlinnn edited a comment on issue #10610:
URL: https://github.com/apache/pulsar/issues/10610#issuecomment-842221702
We guarantee the order of messages from the same partition(One topic may have multi partitions).
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[GitHub] [pulsar] linlinnn edited a comment on issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
linlinnn edited a comment on issue #10610:
URL: https://github.com/apache/pulsar/issues/10610#issuecomment-842221702
We guarantee the order of messages from the same partition(One topic may have multi partitions).
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[GitHub] [pulsar] leiless closed issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
leiless closed issue #10610:
URL: https://github.com/apache/pulsar/issues/10610
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[GitHub] [pulsar] leiless closed issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
leiless closed issue #10610:
URL: https://github.com/apache/pulsar/issues/10610
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[GitHub] [pulsar] linlinnn commented on issue #10610: QA: Pulsar multi-topic subscriptions questions
Posted by GitBox <gi...@apache.org>.
linlinnn commented on issue #10610:
URL: https://github.com/apache/pulsar/issues/10610#issuecomment-842221702
We guarantee the order of message from the same partition(One topic may have multi partitions).
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