refactor StateStoreSuppliers such that a `MeteredKeyValueStore` is the outermost store.
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Eno Thereska <eno.thereska@gmail.com>, Guozhang Wang <wangguoz@gmail.com>
Closes#3592 from dguy/key-value-store-refactor
Also make "created" message more consistent across clients.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Jason Gustafson <jason@confluent.io>
Closes#3658 from ijuma/admin-client-should-register-with-app-info-parser
0. Minor fixes on the existing examples to merge all on a single input topic; also do not use `common.utils.Exit` as it is for internal usage only.
1. Add the archetype project for the quickstart. Steps to try it out:
a. `mvn install` on the quickstart directory.
b. `mvn archetype:generate \
-DarchetypeGroupId=org.apache.kafka \
-DarchetypeArtifactId=streams-quickstart-java \
-DarchetypeVersion=1.0.0-SNAPSHOT \
-DgroupId=streams-quickstart \
-DartifactId=streams-quickstart \
-Dversion=0.1 \
-Dpackage=StreamsQuickstart \
-DinteractiveMode=false` at any directory to create the project.
c. build the streams jar with version `1.0.0-SNAPSHOT` to local maven repository with `./gradlew installAll`; `cd streams-quickstart; mvn clean package`
d. create the input / output topics, start the console producer and consumer.
e. start the program: `mvn exec:java -Dexec.mainClass=StreamsQuickstart.Pipe/LineSplit/WordCount`.
f. type data on console producer and observe data on console consumer.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Damian Guy <damian.guy@gmail.com>, Bill Bejeck <bbejeck@gmail.com>, Ewen Cheslack-Postava <me@ewencp.org>, Eno Thereska <eno.thereska@gmail.com>
Closes#3630 from guozhangwang/KMinor-streams-quickstart-tutorial
Extracted `TaskManager` to handle all task related activities.
Make `StandbyTaskCreator`, `TaskCreator`, and `RebalanceListener` static classes so they must define their dependencies and can be testing independently of `StreamThread`
Added interfaces between `StreamPartitionAssignor` & `StreamThread` to reduce coupling.
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Guozhang Wang <wangguoz@gmail.com>, Eno Thereska <eno.thereska@gmail.com>
Closes#3624 from dguy/stream-thread-refactor
Author: Bill Bejeck <bill@confluent.io>
Reviewers: Eno Thereska <eno.thereska@gmail.com>, Damian Guy <damian.guy@gmail.com>
Closes#3629 from bbejeck/docs-updates-for-kip-167
Author: Bill Bejeck <bill@confluent.io>
Reviewers: Damian Guy <damian.guy@gmail.com>, Guozhang Wang <wangguoz@gmail.com>
Closes#3644 from bbejeck/KAFKA-5711_bulk_restore_should_handle_deletes
These handlers were previously used on the broker to handle uncaught exceptions, but now the broker users the new Java request objects exclusively.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3646 from hachikuji/remove-old-request-error-handlers
This is important because Bits.reserveMemory calls System.gc() hoping to free native
memory in order to avoid throwing an OutOfMemoryException. This call is currently
a no-op due to -XX:+DisableExplicitGC.
It's worth mentioning that -XX:MaxDirectMemorySize can be used to increase the
amount of native memory available for allocation of direct byte buffers.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Apurva Mehta <apurva@confluent.io>, Manikumar Reddy <manikumar.reddy@gmail.com>, Jason Gustafson <jason@confluent.io>
Closes#3371 from ijuma/kafka-5470-explicit-gc-invokes-concurrent
when "auto.offset.reset" property is specified on the command line but overridden by the code during startup. Currently the ConsoleConsumer silently overrides that setting, which can create confusing behavior.
Author: Soenke Liebau <soenke.liebau@opencore.com>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3566 from soenkeliebau/KAFKA-5629
Fixed a bug in the InMemoryKeyValueStore restoration where a key with a `null` value is written in to the map rather than being deleted.
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Bill Bejeck <bbejeck@gmail.com>, Guozhang Wang <wangguoz@gmail.com>
Closes#3650 from dguy/kafka-5717
This ensures all logs have the connector/task ID, whether tasks are source or sink, and formats them consistently.
Author: Ewen Cheslack-Postava <me@ewencp.org>
Reviewers: Randall Hauch <rhauch@gmail.com>, Konstantine Karantasis <konstantine@confluent.io>, Jason Gustafson <jason@confluent.io>
Closes#3639 from ewencp/standardize-connector-task-logging
When a Connect distributed worker starts up talking with broker versions 0.10.1.0 and later, it will use the AdminClient to look for the internal topics and attempt to create them if they are missing. Although the AdminClient was added in 0.11.0.0, the AdminClient uses APIs to create topics that existed in 0.10.1.0 and later. This feature works as expected when Connect uses a broker version 0.10.1.0 or later.
However, when a Connect distributed worker starts up using a broker older than 0.10.1.0, the AdminClient is not able to find the required APIs and thus will throw an UnsupportedVersionException. Unfortunately, this exception is not caught and instead causes the Connect worker to fail even when the topics already exist.
This change handles the UnsupportedVersionException by logging a debug message and doing nothing. The existing producer logic will get information about the topics, which will cause the broker to create them if they don’t exist and broker auto-creation of topics is enabled. This is the same behavior that existed prior to 0.11.0.0, and so this change restores that behavior for brokers older than 0.10.1.0.
This change also adds a system test that verifies Connect works with a variety of brokers and is able to run source and sink connectors. The test verifies that Connect can read from the internal topics when the connectors are restarted.
Author: Randall Hauch <rhauch@gmail.com>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>
Closes#3641 from rhauch/kafka-5704
ewencp would be great to cherry-pick this back into 0.11.x if possible
Author: Xavier Léauté <xavier@confluent.io>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>
Closes#3645 from xvrl/system-test-cluster-id
Notable updates:
1. Gradle 4.1 includes a number of performance and
CLI improvements as well as initial Java 9 support.
2. Scala 2.12.3 has substantial compilation time
improvements.
3. lz4-java 1.4 allows us to remove a workaround in
KafkaLZ4BlockInputStream (not done in this PR).
4. snappy-java 1.1.4 improved performance of compression (5%)
and decompression (20%). There was a slight increase in the
compressed size in one of our tests.
Not updated:
1. PowerMock due to a couple of regressions. I investigated one of them
and filed https://github.com/powermock/powermock/issues/828.
2. Jackson, which will be done via #3631.
3. Rocksdb, which will be done via #3519.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3619 from ijuma/update-deps-for-1.0.0
Separate `batch.size`, `message-size` and `compression-code` from PerfConfig to a newly-created ProducerPerfConfig in order to hide them in ConsumerPerf tool.
Author: huxihx <huxi_2b@hotmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3613 from huxihx/KAFKA-2360
This field doesn't seem to be used and the value for
`AwaitingSync` seems to be wrong (it seems like it
should have been `2` instead of `5`).
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3572 from ijuma/remove-unused-group-state-field
The AdminClient does not properly clear calls from the callsInFlight structure.
Later, in an effort to clear the lingering call objects, it closes the connection
they are associated with. This disrupts new incoming calls, which then get
BrokerNotAvailableException.
This patch fixes this bug by properly removing completed calls from the
callsInFlight structure. It also adds the Call#aborted flag, which
ensures that we throw the right exception (TimeoutException instead of
DisconnectException) and only abort a connection once -- even if there
is a similar bug in the future which causes old Call objects to linger.
Author: Colin P. Mccabe <cmccabe@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3584 from cmccabe/KAFKA-5658
1. Remove separate thread from test failing periodically due to race condition.
2. Remove anonymous `AbstractNotifyingBatchingRestoreCallback` declare as concrete inner class `RocksDBBatchingRestoreCallback` and set as package private variable. Class is static so it has to initialize it's dependency on `RocksDBStore`
Author: Bill Bejeck <bill@confluent.io>
Reviewers: Guozhang Wang <wangguoz@gmail.com>
Closes#3640 from bbejeck/KAFKA-5701_fix_flaky_unit_test
Author: Bill Bejeck <bill@confluent.io>
Reviewers: Guozhang Wang <wangguoz@gmail.com>
Closes#3625 from bbejeck/HOTFIX_need_to_correct_stanby_task_restoration_to_use_new_restore_api
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>, Eno Thereska <eno.thereska@gmail.com>
Closes#3604 from dguy/memory-management-docs
Producer should not drop header information when splitting batches. This PR also corrects a minor typo in Sender.java, where `spitting and retrying` should be `splitting and retrying`.
Author: huxihx <huxi_2b@hotmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Jiangjie Qin <becket.qin@gmail.com>
Closes#3620 from huxihx/KAFKA-5700
Added handling of _DUCKTAPE_OPTIONS (mainly for enabling debugging)
Author: Paolo Patierno <ppatierno@live.com>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>
Closes#3578 from ppatierno/kafka-5643
Support a --custom-ducktape flag which allows developers to install
their own versions of ducktape into Docker images. This is helpful for
ducktape development.
Author: Colin P. Mccabe <cmccabe@confluent.io>
Reviewers: Ewen Cheslack-Postava <me@ewencp.org>, Ismael Juma <ismael@juma.me.uk>
Closes#3539 from cmccabe/KAFKA-5602
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3627 from hachikuji/minor-fix-controlled-shutdown-error-response
With current tests, the deserialization inside the KStreamPrint node processor which happens when key and/or values are byte[] isn't tested. This PR fixes that.
Author: Paolo Patierno <ppatierno@live.com>
Reviewers: Damian Guy <damian.guy@gmail.com>, Bill Bejeck <bbejeck@gmail.com>
Closes#3611 from ppatierno/minor-kstream-print-test
Added deprecation and warning message when the --new-consumer
option is used with the ConsumerGroupCommand and
the ConsumerPerformance tools.
Author: Paolo Patierno <ppatierno@live.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3555 from ppatierno/kafka-5619
Marked --new-consumer as deprecated in the help of ConsoleConsumer
and a warning will be printed if it's used.
Author: Paolo Patierno <ppatierno@live.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3537 from ppatierno/kafka-5599
Also fix potential NPE.
Author: Manikumar Reddy <manikumar.reddy@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3615 from omkreddy/zk-notif-duplicates
Author: Abhishek Mendhekar <amendhekar@linkedin.com>
Reviewers: Joel Koshy <jjkoshy.w@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#3549 from abhishekmendhekar/KAFKA-5461
This patch replaces the legacy ControlledShutdown objects in `kafka.api` with the alternatives in `org.apache.kafka.common.requests`. Since this was the last API that needed updating, we have also dropped the reference in `RequestChannel.Request` to the legacy object type.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3612 from hachikuji/remove-old-controlled-shutdown-objects
This allows a build system to set the correct commit ID when .git/HEAD would be wrong
if there are local commits for build purposes.
Author: Max Zheng <mzheng@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#3606 from maxzheng/read-commit@trunk
The previous code kept two references to `Buffer` and only nulled
out one of them.
As part of this, I removed the `case` modifier from
`RequestChannel.{Request, Response}`. They don't seem to be good
matches given the types of fields they contain (mutable buffers and
opaque `Send` instances).
Also removed a couple of unused files in `kafka.network`.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Radai Rosenblatt <radai.rosenblatt@gmail.com>, Jason Gustafson <jason@confluent.io>
Closes#3596 from ijuma/release-buffer-in-request
A couple of fixes to metric names to match the KIP
- Removed extra strings in the metric names that are already in the tags
- add a separate metric for "all"
Author: Eno Thereska <eno.thereska@gmail.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>
Closes#3491 from enothereska/hotfix-metric-names
1. Remove rest deprecation warnings in streams:jar.
2. Consolidate all unit test classes' reflections to access internal topology builder from packages other than `o.a.k.streams`. We need to refactor the hierarchies of StreamTask, StreamThread and KafkaStreams to remove these hacky reflections.
3. Minor fixes such as reference path, etc.
4. Minor edits on web docs for the describe function under developer-guide.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Ismael Juma <ismael@juma.me.uk>, Damian Guy <damian.guy@gmail.com>
Closes#3603 from guozhangwang/K5671-followup-comments
1. Only log an ERROR on the first encountered exception from the callback.
2. Wrap the exception message with the first thrown message information, and throw the exception whenever `checkException` is called.
Therefore, for the `store.put` call, it will throw a `KafkaException` with the error message a bit more intuitive.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Xavier Léauté <xavier@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Damian Guy <damian.guy@gmail.com>
Closes#3534 from guozhangwang/K5006-exception-record-collector
The bump from 0.11.1.0-SNAPSHOT to 1.0.0-SNAPSHOT broke a couple
of system tests:
* TestVerifiableProducer.test_simple_run
* KafkaVersionTest.test_multi_version
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3587 from ijuma/fix-_kafka_jar_versions
Kafka Streams does not allow users to modify some consumer configurations.
Currently, it does not allow modifying the value of 'enable.auto.commit'.
If the user modifies this property, currently an exception is thrown.
The following changes were made in this patch:
- Defined a new array 'NON_CONFIGURABLE_CONSUMER_CONFIGS' to hold the names
of the configuration parameters that is not allowed to be modified
- Defined a new method 'checkIfUnexpectedUserSpecifiedConsumerConfig' to
check if user overwrote the values of any of the non configurable configuration
parameters. If so, then log a warning message and reset the default values
- Updated the javadoc to include the configuration parameters that cannot be
modified by users.
- Updated the corresponding tests in StreamsConfigTest.java to reflect the changes
made in StreamsConfig.java
Author: Mariam John <mariamj@us.ibm.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Eno Thereska <eno.thereska@gmail.com>, Guozhang Wang <wangguoz@gmail.com>, Damian Guy <damian.guy@gmail.com>
Closes#2990 from johnma14/bug/kafka-5096
In the streams project, there are a number of unit tests that has duplicate
code with respect to the tearDown() method, in which it tries to close the
KStreamTestDriver connection. The goal of this changeset is to eliminate
this duplication by converting the KStreamTestDriver class to an ExternalResource
class which is the base class of JUnit Rule.
In every unit tests that calls KStreamTestDriver, we annotate the KStreamTestDriver
using Rule annotation. In the KStreamTestDriver class, we override the after()
method. This after() method in turn calls the close() method which was previously
called in the tearDown() method in the unit tests. By annotating the KStreamTestDriver
as a Rule, the after() method will be called automatically after every testcase.
Author: johnma14 <mariamj@us.ibm.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#3589 from johnma14/bug/KAFKA-3623
1. Capture `CommitFailedException` in `StreamThread#suspendTasksAndState`.
2. Remove `Cache` from AbstractTask as it is not needed any more; remove not used cleanup related variables from StreamThread (cc dguy to double check).
3. Also fix log4j outputs for error and warn, such that for WARN we do not print stack trace, and for ERROR we remove the dangling colon since the exception stack trace will start in newline.
4. Update one log4j entry to always print as WARN for errors closing a zombie task (cc mjsax ).
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Damian Guy <damian.guy@gmail.com>
Closes#3574 from guozhangwang/KHotfix-handle-commit-failed-exception-in-suspend
Added a Kafka Streams example (IoT oriented) using "tumbling" window
Author: Paolo Patierno <ppatierno@live.com>
Author: ppatierno <ppatierno@live.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>, Michael G. Noll <michael@confluent.io>
Closes#3352 from ppatierno/stream-temperature-example
Damian Guy
Ismael Juma
Guozhang Wang
Bill Bejeck
Jason Gustafson
Xavier Léauté
Evgeny Veretennikov
Eno Thereska
Soenke Liebau
Ewen Cheslack-Postava
Randall Hauch
huxihx
Colin P. Mccabe
ppatierno
Balint Molnar
Manikumar Reddy
Abhishek Mendhekar
Max Zheng
Dong Lin
Mariam John