Besides API and runtime changes, this PR also includes 2 data transformations (`InsertField`, `HoistToStruct`) and 1 routing transformation (`TimestampRouter`).
There is some gnarliness in `ConnectorConfig` / `ConfigDef` around creating, parsing and validating a dynamic `ConfigDef`.
Author: Shikhar Bhushan <shikhar@confluent.io>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>
Closes#2299 from shikhar/smt-2017
Gradle does not handle subprojects with the same name (top-level tools vs
connect/tools) properly, making the dependency impossible to express correctly
since we need to move the ThroughputThrottler class into the top level tools
project. Moving the current set of tools into the runtime jar works fine since
they are only used for system tests at the moment.
Author: Ewen Cheslack-Postava <me@ewencp.org>
Reviewers: Gwen Shapira
Closes#512 from ewencp/kafka-2807-redux
Author: Ewen Cheslack-Postava <me@ewencp.org>
Reviewers: Ben Stopford, Geoff Anderson, Guozhang Wang
Closes#432 from ewencp/kafka-2752-copycat-clean-bounce-test
This work has been contributed by Jesse Anderson, Randall Hauch, Yasuhiro Matsuda and Guozhang Wang. The detailed design can be found in https://cwiki.apache.org/confluence/display/KAFKA/KIP-28+-+Add+a+processor+client.
Author: Guozhang Wang <wangguoz@gmail.com>
Author: Yasuhiro Matsuda <yasuhiro.matsuda@gmail.com>
Author: Yasuhiro Matsuda <yasuhiro@confluent.io>
Author: ymatsuda <yasuhiro.matsuda@gmail.com>
Author: Randall Hauch <rhauch@gmail.com>
Author: Jesse Anderson <jesse@smokinghand.com>
Author: Ismael Juma <ismael@juma.me.uk>
Author: Jesse Anderson <eljefe6a@gmail.com>
Reviewers: Ismael Juma, Randall Hauch, Edward Ribeiro, Gwen Shapira, Jun Rao, Jay Kreps, Yasuhiro Matsuda, Guozhang Wang
Closes#130 from guozhangwang/streaming
This is an initial patch implementing the basics of Copycat for KIP-26.
The intent here is to start a review of the key pieces of the core API and get a reasonably functional, baseline, non-distributed implementation of Copycat in place to get things rolling. The current patch has a number of known issues that need to be addressed before a final version:
* Some build-related issues. Specifically, requires some locally-installed dependencies (see below), ignores checkstyle for the runtime data library because it's lifted from Avro currently and likely won't last in its current form, and some Gradle task dependencies aren't quite right because I haven't gotten rid of the dependency on `core` (which should now be an easy patch since new consumer groups are in a much better state).
* This patch currently depends on some Confluent trunk code because I prototyped with our Avro serializers w/ schema-registry support. We need to figure out what we want to provide as an example built-in set of serializers. Unlike core Kafka where we could ignore the issue, providing only ByteArray or String serializers, this is pretty central to how Copycat works.
* This patch uses a hacked up version of Avro as its runtime data format. Not sure if we want to go through the entire API discussion just to get some basic code committed, so I filed KAFKA-2367 to handle that separately. The core connector APIs and the runtime data APIs are entirely orthogonal.
* This patch needs some updates to get aligned with recent new consumer changes (specifically, I'm aware of the ConcurrentModificationException issue on exit). More generally, the new consumer is in flux but Copycat depends on it, so there are likely to be some negative interactions.
* The layout feels a bit awkward to me right now because I ported it from a Maven layout. We don't have nearly the same level of granularity in Kafka currently (core and clients, plus the mostly ignored examples, log4j-appender, and a couple of contribs). We might want to reorganize, although keeping data+api separate from runtime and connector plugins is useful for minimizing dependencies.
* There are a variety of other things (e.g., I'm not happy with the exception hierarchy/how they are currently handled, TopicPartition doesn't really need to be duplicated unless we want Copycat entirely isolated from the Kafka APIs, etc), but I expect those we'll cover in the review.
Before commenting on the patch, it's probably worth reviewing https://issues.apache.org/jira/browse/KAFKA-2365 and https://issues.apache.org/jira/browse/KAFKA-2366 to get an idea of what I had in mind for a) what we ultimately want with all the Copycat patches and b) what we aim to cover in this initial patch. My hope is that we can use a WIP patch (after the current obvious deficiencies are addressed) while recognizing that we want to make iterative progress with a bunch of subsequent PRs.
Author: Ewen Cheslack-Postava <me@ewencp.org>
Reviewers: Ismael Juma, Gwen Shapira
Closes#99 from ewencp/copycat and squashes the following commits:
a3a47a6 [Ewen Cheslack-Postava] Simplify Copycat exceptions, make them a subclass of KafkaException.
8c108b0 [Ewen Cheslack-Postava] Rename Coordinator to Herder to avoid confusion with the consumer coordinator.
7bf8075 [Ewen Cheslack-Postava] Make Copycat CLI speific to standalone mode, clean up some config and get rid of config storage in standalone mode.
656a003 [Ewen Cheslack-Postava] Clarify and expand the explanation of the Copycat Coordinator interface.
c0e5fdc [Ewen Cheslack-Postava] Merge remote-tracking branch 'origin/trunk' into copycat
0fa7a36 [Ewen Cheslack-Postava] Mark Copycat classes as unstable and reduce visibility of some classes where possible.
d55d31e [Ewen Cheslack-Postava] Reorganize Copycat code to put it all under one top-level directory.
b29cb2c [Ewen Cheslack-Postava] Merge remote-tracking branch 'origin/trunk' into copycat
d713a21 [Ewen Cheslack-Postava] Address Gwen's review comments.
6787a85 [Ewen Cheslack-Postava] Make Converter generic to match serializers since some serialization formats do not require a base class of Object; update many other classes to have generic key and value class type parameters to match this change.
b194c73 [Ewen Cheslack-Postava] Split Copycat converter option into two options for key and value.
0b5a1a0 [Ewen Cheslack-Postava] Normalize naming to use partition for both source and Kafka, adjusting naming in CopycatRecord classes to clearly differentiate.
e345142 [Ewen Cheslack-Postava] Remove Copycat reflection utils, use existing Utils and ConfigDef functionality from clients package.
be5c387 [Ewen Cheslack-Postava] Minor cleanup
122423e [Ewen Cheslack-Postava] Style cleanup
6ba87de [Ewen Cheslack-Postava] Remove most of the Avro-based mock runtime data API, only preserving enough schema functionality to support basic primitive types for an initial patch.
4674d13 [Ewen Cheslack-Postava] Address review comments, clean up some code styling.
25b5739 [Ewen Cheslack-Postava] Fix sink task offset commit concurrency issue by moving it to the worker thread and waking up the consumer to ensure it exits promptly.
0aefe21 [Ewen Cheslack-Postava] Add log4j settings for Copycat.
220e42d [Ewen Cheslack-Postava] Replace Avro serializer with JSON serializer.
1243a7c [Ewen Cheslack-Postava] Merge remote-tracking branch 'origin/trunk' into copycat
5a618c6 [Ewen Cheslack-Postava] Remove offset serializers, instead reusing the existing serializers and removing schema projection support.
e849e10 [Ewen Cheslack-Postava] Remove duplicated TopicPartition implementation.
dec1379 [Ewen Cheslack-Postava] Switch to using new consumer coordinator instead of manually assigning partitions. Remove dependency of copycat-runtime on core.
4a9b4f3 [Ewen Cheslack-Postava] Add some helpful Copycat-specific build and test targets that cover all Copycat packages.
31cd1ca [Ewen Cheslack-Postava] Add CLI tools for Copycat.
e14942c [Ewen Cheslack-Postava] Add Copycat file connector.
0233456 [Ewen Cheslack-Postava] Add copycat-avro and copycat-runtime
11981d2 [Ewen Cheslack-Postava] Add copycat-data and copycat-api
Initial patch for KIP-25
Note that to install ducktape, do *not* use pip to install ducktape. Instead:
```
$ git clone gitgithub.com:confluentinc/ducktape.git
$ cd ducktape
$ python setup.py install
```
Author: Geoff Anderson <geoff@confluent.io>
Author: Geoff <granders@gmail.com>
Author: Liquan Pei <liquanpei@gmail.com>
Reviewers: Ewen, Gwen, Jun, Guozhang
Closes#70 from granders/KAFKA-2276 and squashes the following commits:
a62fb6c [Geoff Anderson] fixed checkstyle errors
a70f0f8 [Geoff Anderson] Merged in upstream trunk.
8b62019 [Geoff Anderson] Merged in upstream trunk.
47b7b64 [Geoff Anderson] Created separate tools jar so that the clients package does not pull in dependencies on the Jackson JSON tools or argparse4j.
a9e6a14 [Geoff Anderson] Merged in upstream changes
d18db7b [Geoff Anderson] fixed :rat errors (needed to add licenses)
321fdf8 [Geoff Anderson] Ignore tests/ and vagrant/ directories when running rat build task
795fc75 [Geoff Anderson] Merged in changes from upstream trunk.
1d93f06 [Geoff Anderson] Updated provisioning to use java 7 in light of KAFKA-2316
2ea4e29 [Geoff Anderson] Tweaked README, changed default log collection behavior on VerifiableProducer
0eb6fdc [Geoff Anderson] Merged in system-tests
69dd7be [Geoff Anderson] Merged in trunk
4034dd6 [Geoff Anderson] Merged in upstream trunk
ede6450 [Geoff] Merge pull request #4 from confluentinc/move_muckrake
7751545 [Geoff Anderson] Corrected license headers
e6d532f [Geoff Anderson] java 7 -> java 6
8c61e2d [Geoff Anderson] Reverted jdk back to 6
f14c507 [Geoff Anderson] Removed mode = "test" from Vagrantfile and Vagrantfile.local examples. Updated testing README to clarify aws setup.
98b7253 [Geoff Anderson] Updated consumer tests to pre-populate kafka logs
e6a41f1 [Geoff Anderson] removed stray println
b15b24f [Geoff Anderson] leftover KafkaBenchmark in super call
0f75187 [Geoff Anderson] Rmoved stray allow_fail. kafka_benchmark_test -> benchmark_test
f469f84 [Geoff Anderson] Tweaked readme, added example Vagrantfile.local
3d73857 [Geoff Anderson] Merged downstream changes
42dcdb1 [Geoff Anderson] Tweaked behavior of stop_node, clean_node to generally fail fast
7f7c3e0 [Geoff Anderson] Updated setup.py for kafkatest
c60125c [Geoff Anderson] TestEndToEndLatency -> EndToEndLatency
4f476fe [Geoff Anderson] Moved aws scripts to vagrant directory
5af88fc [Geoff Anderson] Updated README to include aws quickstart
e5edf03 [Geoff Anderson] Updated example aws Vagrantfile.local
96533c3 [Geoff] Update aws-access-keys-commands
25a413d [Geoff] Update aws-example-Vagrantfile.local
884b20e [Geoff Anderson] Moved a bunch of files to kafkatest directory
fc7c81c [Geoff Anderson] added setup.py
632be12 [Geoff] Merge pull request #3 from confluentinc/verbose-client
51a94fd [Geoff Anderson] Use argparse4j instead of joptsimple. ThroughputThrottler now has more intuitive behavior when targetThroughput is 0.
a80a428 [Geoff Anderson] Added shell program for VerifiableProducer.
d586fb0 [Geoff Anderson] Updated comments to reflect that throttler is not message-specific
6842ed1 [Geoff Anderson] left out a file from last commit
1228eef [Geoff Anderson] Renamed throttler
9100417 [Geoff Anderson] Updated command-line options for VerifiableProducer. Extracted throughput logic to make it reusable.
0a5de8e [Geoff Anderson] Fixed checkstyle errors. Changed name to VerifiableProducer. Added synchronization for thread safety on println statements.
475423b [Geoff Anderson] Convert class to string before adding to json object.
bc009f2 [Geoff Anderson] Got rid of VerboseProducer in core (moved to clients)
c0526fe [Geoff Anderson] Updates per review comments.
8b4b1f2 [Geoff Anderson] Minor updates to VerboseProducer
2777712 [Geoff Anderson] Added some metadata to producer output.
da94b8c [Geoff Anderson] Added number of messages option.
07cd1c6 [Geoff Anderson] Added simple producer which prints status of produced messages to stdout.
a278988 [Geoff Anderson] fixed typos
f1914c3 [Liquan Pei] Merge pull request #2 from confluentinc/system_tests
81e4156 [Liquan Pei] Bootstrap Kafka system tests
bbejeck
Shikhar Bhushan
Guozhang Wang
Grant Henke
Ewen Cheslack-Postava
Geoff Anderson
Ashish Singh
Jun Rao