+1 Thanks, Nozomi
2023年11月28日(火) 17:04 Yuri Mizushima <equ...@apache.org>: > Hi, Pulsar Community > > This thread is starting a vote for PIP-282. > > PIP design PR: > https://github.com/apache/pulsar/pull/20776 > > discussion thread: > https://lists.apache.org/thread/69fpb0d30y7pc02k3zvg2lpb2lj0smdg > > Motivation > > Key_Shared has a mechanism called the "recently joined consumers" to keep > message ordering. > However, currently, it doesn't care about some corner cases. > > 1. [issue-1] The race condition in the "recently joined consumers", where > consumers can be added before finishing reading and dispatching messages > from ledgers. > 2. [issue-2] Messages could be added to messagesToRedeliver without > consumer-side operations such as unacknowledgement. > > We should care about these cases in Key_Shared subscription. > > Thanks, > > -- > Yuri Mizushima > equ...@apache.org >
