I’ve added the `Compatibility` selection into the PIP, please help review and vote the PIP
Thanks, Tao Jiuming > 2023年2月15日 14:58，Zike Yang <z...@apache.org> 写道： > > Hi, Jiuming > >> bump > > As for the discussion here[0], could you add a `Compatibility` section > to talk about compatibility in more detail? WDYT? > Then we could start the vote again. > > [0] https://lists.apache.org/thread/2bjg39zh7z38bzbnqngbo5l4jzkjttrq > > Thanks, > Zike Yang > > On Wed, Feb 15, 2023 at 1:34 PM Tao Jiuming <dao...@apache.org> wrote: >> >> >> bump >> >> On 2023/02/13 06:56:09 Jiuming Tao wrote: >>> Hi all, >>> >>> I would like to start a VOTE on `PIP-245: Make subscriptions of >>> non-persistent topic non-durable`. >>> >>> Motivation: >>> >>> There are two types of subscriptions for a topic: Durable and Non-durable. >>> >>> We create a Consumer with a Durable subscription and a Reader with a >>> Non-durable subscription. >>> >>> But for NonPersistentTopic, creating a Durable subscription is meaningless, >>> NonPersistentSubscription doesn't have a ManagedCursor to persistent its >>> data. After its consumer disconnected, the subscription couldn't be removed >>> automatically if we didn't set the value of >>> subscriptionExpirationTimeMinutes greater than 0. >>> >>> For subscriptionExpirationTimeMinutes, it controls the subscription >>> expiration of NonPersistentTopic and PersistentTopic, if we set the value >>> of subscriptionExpirationTimeMinutes greater than 0, it may lead to data >>> loss(The durable subscriptions of PersistentTopic also can be removed). >>> >>> And the Non-durable subscriptions will be removed automatically after all >>> the consumers disconnected, it's the existing logic. >>> >>> For the purpose of removing the subscriptions which have no active >>> consumers of NonPersistentTopic and the above reasons, we can make all the >>> subscriptions of a NonPersistentTopic Non-durable. >>> >>> >>> >>> For more details, you can read: >>> https://github.com/apache/pulsar/issues/19448 >>> <https://github.com/apache/pulsar/issues/19448> >>> >>> And the discuss thread is available at: >>> https://lists.apache.org/thread/2ltmyglnb25jy8nk58twkwbglws43bst >>> <https://lists.apache.org/thread/2ltmyglnb25jy8nk58twkwbglws43bst> >>> >>> Thanks, >>> Tao Jiuming
