KIP-914 introduced a new boolean isLatest into Change to indicate whether a change update represents the latest for the key. Even though Change is serialized into the table repartition topic, the new boolean does not need to be serialized in, because the table repartition map processor performs an optimization to drop records for which isLatest = false. If not for this optimization, the downstream table aggregate would have to drop such records instead, and isLatest would need to be serialized into the repartition topic.
In light of the possibility that isLatest may need to be serialized into the repartition topic in the future, e.g., if other downstream processors are added which need to distinguish between records for which isLatest = true vs isLatest = false, this PR reserves repartition topic formats which include isLatest. Reserving these formats now comes at no additional cost to users since a rolling bounce is already required for the upcoming release due to KIP-904. If we don't reserve them now and instead have to add them later, then another bounce would be required at that time. Reserving formats is cheap, so we choose to do it now.
Reviewers: Matthias J. Sax <matthias@confluent.io>
Moved the information about the BooleanSerde addition from general upgrade notes to notes in Streams.
Reviewers: Walker Carlson <wcarlson@confluent.io>, Divij Vaidya <diviv@amazon.com>
Documentation only—Minor clarification on how max.warmup.replicas works; specifically, that one "warmup replica" corresponds to a Task that is restoring its state. Also clarifies how max.warmup.replicas interacts with probing.rebalance.interval.ms.
Reviewers: Lucas Brutschy <lbrutschy@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
The table of (stateless) transformations uses the transformation name in the first column and a description in the second column. I adjusted the transformation name for FlatMapValues accordingly.
Reviewers: Matthias J. Sax <mjsax@apache.org>, Bill Bejeck <bbejeck@apache.org>
This PR is part of a series implementing the self-join rewriting. As part of it, we decided to clean up the TOPOLOGY_OPTIMIZATION_CONFIG and make it a list of optimization rules. Acceptable values are: NO_OPTIMIZATION, OPTIMIZE which applies all optimization rules or a comma separated list of specific optimizations.
Reviewers: Guozhang Wang <guozhang@apache.org>, John Roesler <vvcephei@apache.org>
Update the quickstart HTML pages for Kafka and Kafka Stream to include how to quickly start and
experiment with a Kafka cluster using KRaft in addition to ZooKeeper.
Reviews: Colin Patrick McCabe <cmccabe@apache.org>, Chase Thomas <forlack@users.noreply.github.com>, Luke Chen <showuon@gmail.com>
This PR is a mirror of apache/kafka-site#433 which used placeholder images for the Kafka Streams that users need to click in order to load the iframe with the corresponding video.
Reviewers: Mickael Maison <mimaison@apache.org>
Prior to this commit FK response sink routed FK results to
SubscriptionResolverJoinProcessorSupplier using the primary key.
There are cases, where this behavior is incorrect. For example,
if KTable key serde differs from the data source serde which might
happen without a key changing operation.
Instead of determining the resolver partition by serializing the PK
this patch includes target partition in SubscriptionWrapper payloads.
Default FK response-sink partitioner extracts the correct partition
from the value and routes the message accordingly.
Reviewers: Matthias J. Sax <matthias@confluent.io>
Adds documentation for KIP-708: Rack awareness for Kafka Streams
Co-authored-by: Bruno Cadonna <cadonna@apache.org>
Reviewers: Luke Chen <showuon@gmail.com>, Bruno Cadonna <cadonna@apache.org>
In the RocksDb memory management doc, we mentioned in the footnote that there's a rocksdb bug caused the strict_capacity_limit boolean parameter in the LRUCache constructor can't be set to true. However, the bug is already fixed in 6.11.4, and we're using 6.22 now, so the note can be removed.
Reviewer: Bruno Cadonna <cadonna@apache.org>
Right now, we have scattered uses of `SerDes` throughout the docs. These should be updated to be `Serdes`, as that's what we commonly use now.
Reviewers: Boyang Chen <bchen11@outlook.com>
There were a few followup things to address from #10926, most importantly a number of updates to the javadocs. Also includes a few missing verification checks.
Reviewers: Guozhang Wang <guozhang@confluent.io>, Matthias J. Sax <mjsax@apache.org>, Israel Ekpo
We removed default 24 hours grace period in KIP-633, and deprecate some grace methods, but we forgot to update the stream docs.
Reviewer: Bruno Cadonna <cadonna@apache.org>
Also update the upgrade guide indicating about the grace period KIP and its indication on the fix with throughput impact.
Reviewers: Luke Chen <showuon@gmail.com>, Matthias J. Sax <mjsax@apache.org>
Update the docs for task idling, since the semantics have
changed in 3.0.
Reviewers: Jim Galasyn <jim.galasyn@confluent.io>, Luke Chen <showuon@gmail.com>, Boyang Chen <boyang@apache.org>
#10813 changed the default serde from ByteArraySerde as discussed in KIP-741. This adds proper documentation so users know to set a serde through the configs or explicitly pass one in.
Reviewers: Walker Carlson <wcarlson@confluent.io>, Anna Sophie Blee-Goldman <ableegoldman@apache.org>
Implementation of KIP-744.
Creates new Interfaces for TaskMetadata, ThreadMetadata, and
StreamsMetadata, providing internal implementations for each of them.
Deprecates current TaskMetadata, ThreadMetadata under o.a.k.s.processor,
and SreamsMetadata under a.o.k.s.state.
Updates references on internal classes from deprecated classes to new interfaces.
Deprecates methods on KafkaStreams returning deprecated ThreadMeatada and
StreamsMetadata, and provides new ones returning the new interfaces.
Update Javadocs referencing to deprecated classes and methods to point
to the right ones.
Co-authored-by: Bruno Cadonna <cadonna@apache.org>
Reviewers: Anna Sophie Blee-Goldman <ableegoldman@apache.org>, Bruno Cadonna <cadonna@apache.org>
Quick followup to KIP-740 to actually deprecate this constructor, and update the upgrade guide with what we changed in KIP-740. I also noticed the TaskId#parse method had been modified previously, and should be re-added to the public TaskId class. It had no tests, so now it does
Reviewers: Matthias J. Sax <mjsax@confluent.io>, Luke Chen <showuon@gmail.com>
Code samples are now unified and correctly formatted.
Samples under Streams use consistently the prism library.
Reviewers: Bruno Cadonna <cadonna@apache.org>
Matthias J. Sax
Jim Galasyn
Victoria Xia
Spacrocket
Farooq Qaiser
Iblis Lin
Bill Bejeck
littlehorse-eng
Matthias Seiler
Luke Chen
liuzc9
Shay Lin
Vicky Papavasileiou
Nikolay
Colin Patrick McCabe
José Armando García Sancio
Divij Vaidya
Mickael Maison
Marco Aurelio Lotz
Okada Haruki
Amir M. Saeid
Milind Mantri
Aleksandr Sorokoumov
Levani Kokhreidze
aSemy
Andy Chambers
Guozhang Wang
A. Sophie Blee-Goldman
John Roesler
leah
Josep Prat
Josep Prat