We can use the console-consumer to read the contents of the `__remote_log_metadata` topic. Why are we proposing a new tool?
sh kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic __remote_log_metadata --consumer-property exclude.internal.topics=false --formatter org.apache.kafka.server.log.remote.metadata.storage.serialization.RemoteLogMetadataSerde\$RemoteLogMetadataFormatter --from-beginning On Mon, Jun 17, 2024 at 12:53 PM Federico Valeri <fedeval...@gmail.com> wrote: > Hi Divij, > > On Sun, Jun 16, 2024 at 7:38 PM Divij Vaidya <divijvaidy...@gmail.com> > wrote: > > > > Hello Federico > > > > Please note that the topic-based RLMM is one of the possible > > implementations of RLMM. Hence, whatever solution we design here should: > 1\ > > be explicit that this tooling only works for topic based RLMM 2\ specify > > the handling of the failure mode when topic based RLMM is not being used. > > > > That's true, thanks for pointing out. > > > I would argue that Topic based RLMM cannot be treated the same as other > > internal topics. Topic based RLMM topic is an optional topic which can > have > > any possible schema (depending on plugin implementation) whereas > > other internal topics are always guaranteed to be present with a fixed > > schema. > > > > Right, I updated the KIP with an improved option description. > > > In light of the above statements, the rejected alternative sounds better > to > > me because: > > 1\ it provides the ability to dump logs for "any" RLMM implementation and > > not just topic based RLMM. > > 2\ we don't have to deal with schema evolution of topic based RLMM in > this > > tool. That responsibility will be delegated to the decoder class which > the > > operator can define using the flag "--value-decoder-class". > > > > Is there a reason that you are unable to use the rejected solution (which > > requires no changes) for debugging purposes? > > > > The rejected alternative will still be available, but I thought that > having a dedicated flag would make debugging easier, as I guess most > people will use the default RLMM implementation. I would be happy to > hear other opinions on this. > > > -- > > Divij Vaidya > > > > > > > > On Sat, Jun 15, 2024 at 4:43 PM Federico Valeri <fedeval...@gmail.com> > > wrote: > > > > > Hi all, > > > > > > I'd like to kick off a discussion for KIP-1057, that proposes to add > > > remote log metadata flag to the dump log tool, which is useful when > > > debugging. > > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-1057%3A+Add+remote+log+metadata+flag+to+the+dump+log+tool > > > > > > Thanks, > > > Fede > > > >
