I found several minor issues with the Kafka Streams tutorial:
* Some typos
* "As shown above, it illustrate that the constructed ..." instead of "As shown above, it illustrate_s_ that the constructed ..."
* "same as Pipe.java below" instead of "same as Pipe.java _above_"
* Wrong class name in the `LineSplit` example
* Incorrect imports for the code examples
* Missing `import org.apache.kafka.streams.kstream.KStream;` in `LineSplit` and `WordCount` example
* Unnecessary (and potentially confusing) split by whitespaces in the `WorkCount` class (the split into words happened already in `LineSplit`)
Author: Jakub Scholz <www@scholzj.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3883 from scholzj/stream-tutorial-typos
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Guozhang Wang <wangguoz@gmail.com>, Bill Bejeck <bill@confluent.io>
Closes#3893 from mjsax/kafka-5893-reset-integration-test
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Ted Yu <yuzhihong@gmail.com>, Guozhang Wang <wangguoz@gmail.com>
Closes#3841 from mjsax/kafka-5833-interrupts
Throws IllegalArgumentException is the offset is negative
Author: Mickael Maison <mickael.maison@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Jason Gustafson <jason@confluent.io>
Closes#3780 from mimaison/commitSync_javadoc
Use logIdent to achieve this.
Also fixed an issue where we were logging about replicas going offline with
an empty set of replicas (i.e. no replicas had gone offline so no need to log).
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3869 from ijuma/improve-state-change-log
Add overloads for `table` and `globalTable` that use `Materialized`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3837 from dguy/kafka-5873
The string representation of TopicPartition was changed to be
{topic}-{partitition} consistently in the following commit:
f6f56a645b
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3890 from ijuma/fix-replica-verification-test
The parameter is already called `mapper` in the KStreamImpl class. I think it was probably named `processor` here because it was copy/pasted from some other signature. This sees trivial enough to not require a jira as per the contribution guidelines.
Author: Andy Chambers <andy.chambers@fundingcircle.com>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3888 from cddr/fix-kstream-flatMapValues-signature
- improve stderr output for better debugging
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Bill Bejeck <bill@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3859 from mjsax/kafka-5893-reset-integration-test
Remove date formatting from `Segments` and use the `segementId` instead.
Add tests to make sure can load old segments.
Rename old segment dirs to new formatting at load time.
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: tedyu <yuzhihong@gmail.com>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3783 from dguy/kafka-5515
I'm doing this in my spare time, so don't let reviewing this PR take away actual work time. This is just me going over the code with the Intellij analyzer and implementing the most easily implementable fixes.
This PR is focused only on seemingly erronous log statements.
1: A log statement that has 4 arguments supplied but only 3 `{}` statements
2: A log statement that checks is debug is enabled, but then logs on `info` level.
Author: coscale_kdegroot <koen.degroote@coscale.com>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3886 from KoenDG/loggingErrors
Add overloads of `count`, `reduce`, and `aggregate` that are `Materialized` to `KGroupedStream`.
Refactor common parts between `KGroupedStream` and `WindowedKStream`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3827 from dguy/kafka-5654
Fixes two issues with the JMH benchmark example:
* Trivial: The output should be in `ops/ms` for readability
reasons (it's in the millions of operations per second)
* Important: The benchmark is not actually measuring the
LRU Cache performance as most of the time in each run is
wasted on concatenating `key + counter` as well as
`value + counter`. Fixed by pre-generating 10k K-V pairs
(100x the cache capacity) and iterating over them. This
brings the performance up by a factor of more than 5 on
a standard 4 core i7 (`~6k/ms` before goes to `~35k/ms`).
Author: Armin Braun <me@obrown.io>
Reviewers: Bill Bejeck <bbejeck@gmail.com>, Guozhang Wang <wangguoz@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#2903 from original-brownbear/fix-jmh-example
Also:
1. Fix WorkerTest to use the correct `Mock` annotations. `org.easymock.Mock`
is not supported by PowerMock 2.x.
2. Rename `powermock` to `powermockJunit4` in `dependencies.gradle` for
clarity.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Rajini Sivaram <rajinisivaram@googlemail.com>
Closes#3881 from ijuma/kafka-5884-powermock-java
Author: Rajini Sivaram <rajinisivaram@googlemail.com>
Reviewers: James Cheng <jylcheng@yahoo.com>, Ismael Juma <ismael@juma.me.uk>
Closes#3882 from rajinisivaram/MINOR-KAFKA-5738-metricstemplates
This PR utilizes `org.apache.kafka.common.utils.LogContext` for logging in `KafkaStreams`. hachikuji, ijuma please review this and let me know your thoughts.
Author: umesh chaudhary <umesh9794@gmail.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>, Damian Guy <damian.guy@gmail.com>
Closes#3727 from umesh9794/KAFKA-5754
This test is super flaky in the PR builder. https://issues.apache.org/jira/browse/KAFKA-5792 tracks the fix.
Author: Apurva Mehta <apurva@confluent.io>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3877 from apurvam/MINOR-disable-adminclient-timeout-test
The `NextIteratorFunction` in `CompositeReadOnlyWindowStore` was incorrectly using the `timeFrom` as the `timeTo`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3868 from dguy/window-store-range-scan
Here we introduce client and broker changes to support multiple inflight requests while still guaranteeing idempotence. Two major problems to be solved:
1. Sequence number management on the client when there are request failures. When a batch fails, future inflight batches will also fail with `OutOfOrderSequenceException`. This must be handled on the client with intelligent sequence reassignment. We must also deal with the fatal failure of some batch: the future batches must get different sequence numbers when the come back.
2. On the broker, when we have multiple inflights, we can get duplicates of multiple old batches. With this patch, we retain the record metadata for 5 older batches.
Author: Apurva Mehta <apurva@confluent.io>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3743 from apurvam/KAFKA-5494-increase-max-in-flight-for-idempotent-producer
It adds complexity for no benefit since we don't use
it anywhere.
Also removed a few unused imports, variables and
default parameters.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Rajini Sivaram <rajinisivaram@googlemail.com>, Jason Gustafson <jason@confluent.io>
Closes#3856 from ijuma/remove-security-protocol-trace
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#3852 from hachikuji/minor-use-log-context-txn-manager
Author: Vahid Hashemian <vahidhashemian@us.ibm.com>
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#3854 from vahidhashemian/minor/fix_log_context_message_format
- EasyMock 3.5 supports Java 9.
- Fixed issues in `testFailedSendRetryLogic` and
`testCreateConnectorAlreadyExists` exposed by new EasyMock
version. The former was passing `anyObject` to
`andReturn`, which doesn't make sense. This was leaving
behind a global `any` matcher, which caused a few issues in
the new version. Fixing this meant that the correlation ids had
to be updated to actually match. The latter was missing a
couple of expectations that the previous version of EasyMock
didn't catch.
- Removed unnecessary PowerMock dependency from 3 tests.
- Disabled remaining PowerMock tests when running with Java 9
until https://github.com/powermock/powermock/issues/783 is
in a release.
- Once we merge this PR, we can enable tests in the Java 9 builds
in Jenkins.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Rajini Sivaram <rajinisivaram@googlemail.com>
Closes#3845 from ijuma/kafka-4501-easymock-powermock-java-9
The contribution is my original work and I license the work to the project under the project's open source licence.
Author: lperry <lperry@simplemachines.com.au>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Damian Guy <damian.guy@gmail.com>
Closes#3843 from leigh-perry/trunk
I have decided to use the following approach to fixing this bug:
1) Since the Window Size in WindowedDeserializer was originally unknown, I have initialized
a field _windowSize_ and created a constructor to allow it to be instantiated
2) The default size for __windowSize__ is _Long.MAX_VALUE_. If that is the case, then the
deserialize method will return an Unlimited Window, or else will return Timed one.
3) Temperature Demo was modified to demonstrate how to use this new constructor, given
that the window size is known.
Author: Richard Yu <richardyu@Richards-Air.attlocal.net>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Bill Bejeck <bill@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3745 from ConcurrencyPractitioner/trunk
Add overloads of `count`, `aggregate`, `reduce` using `Materialized` to `KGroupedTable`
deprecate other overloads
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Bill Bejeck <bill@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3829 from dguy/kafka-5655
Add `join`, `leftJoin`, `outerJoin` overloads that use `Materialized` to `KTable`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3826 from dguy/kafka-5653
Author: Bill Bejeck <bill@confluent.io>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>, Damian Guy <damian.guy@gmail.com>
Closes#3828 from bbejeck/MINOR_update_processor_topology_test_driver
Add `SerializedInternal` class and remove getters from `Serialized`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>
Closes#3825 from dguy/kafka-5817-follow-up
Create `ProducedInternal` and remove getters from `Produced`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3810 from dguy/kafka-5816-follow-up
1. Now instead of just generic `Exception` methods declare more concrete
exceptions throwing or don't declare any throwing at all, if not needed.
2. `SimpleBenchmark.run()` throws `RuntimeException`
3. `SimpleBenchmark.produce()` throws `IllegalArgumentException`
4. Expect `ProcessorStateException` in
`StandbyTaskTest.testUpdateNonPersistentStore()`
/cc enothereska
Author: Evgeny Veretennikov <evg.veretennikov@gmail.com>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3485 from evis/5531-throw-concrete-exceptions
`SelectorTest.testCloseConnectionInClosingState` creates a channel with some staging receives and moves time forward to expire the channel. To ensure that the channel will be expired on the next poll, the channel must be muted to avoid expiry time being updated if more data is available for read.
Author: Rajini Sivaram <rajinisivaram@googlemail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3823 from rajinisivaram/MINOR-SelectorTest-closingChannel
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3816 from dguy/consumed-ctor
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3817 from dguy/printed-ctor-protected
Add overloads of `filter`, `filterNot`, `mapValues` that take `Materialized` as a param to `KTable`. Deprecate overloads using `storeName` and `storeSupplier`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3807 from dguy/ktable-filter-map
Jakub Scholz
Matthias J. Sax
Mickael Maison
Ismael Juma
Damian Guy
Andy Chambers
coscale_kdegroot
Armin Braun
Rajini Sivaram
umesh chaudhary
Apurva Mehta
Jason Gustafson
Vahid Hashemian
Jeff Widman
Guozhang Wang
lperry
Richard Yu
Bill Bejeck
Bryan Baugher
Andrey Dyachkov
Evgeny Veretennikov
Colin P. Mccabe
Xavier Léauté