├── .arcconfig
├── .gitignore
├── LICENSE
├── README.md
├── logos
├── dsql-kafka.png
└── yb_stacked_full_detail_dark_RGB.png
├── pom.xml
├── resources
└── examples
│ ├── kafka.connect.properties
│ └── yugabyte.sink.properties
├── src
└── main
│ └── java
│ └── com
│ └── yb
│ └── connect
│ └── sink
│ ├── YBSinkConnector.java
│ └── YBSinkTask.java
└── yb-cdc
├── README.md
└── yb-cdc-connector.jar
/.arcconfig:
--------------------------------------------------------------------------------
1 | {
2 | "phabricator.uri" : "https://phabricator.dev.yugabyte.com",
3 | "repository.callsign": "YB-Kafka-Connector",
4 | "git:arc.feature.start.default" : "upstream/master",
5 | "arc.land.onto.default": "master",
6 | "arc.feature.start.default" : "master"
7 | }
8 |
--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | build
2 | logs
3 | target
4 | .idea
5 | .idea_modules
6 | /.classpath
7 | /.project
8 | /.settings
9 | /RUNNING_PID
10 |
11 | # VIM/emacs stuff
12 | *.swp
13 | *~
14 | core*
15 |
16 | perf.data
17 | perf.data.old
18 | oprofile_data
19 | .metadata/
20 | *.iml
21 |
22 | app/.DS_STORE
23 | .DS_Store
24 | app/views/.DS_Store
25 |
26 | node_modules/
27 | react/node_modules/
28 | *bundle.js
29 | react/public/bundle.js
30 | react/.idea/
31 |
32 | npm-debug.log
33 | react/npm-debug.log
34 |
35 | conf/*
36 | src/main/public/*
37 | *.pyc
38 | docker/yugaware/*.yml
39 | src/itest/static/*.log
40 |
41 | ui/.env
42 | ui/public/map/
43 |
44 | src/itest/python_virtual_env
45 | src/itest/web_app/appllication.conf
46 | .session.vim*
47 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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/README.md:
--------------------------------------------------------------------------------
1 | There are two approaches of integrating [YugabyteDB](https://github.com/yugabyte/yugabyte-db) with Kafka. Kafka provides [Kafka Connect](https://docs.confluent.io/3.0.0/connect/intro.html), a connector SDK for building such integrations.
2 |
3 |
4 |
5 | ## Kafka Connect YugabyteDB Source Connector
6 |
7 | In this approach, the source connector streams table updates in YugabyteDB to Kafka topics. It is based on YugabyteDB's Change Data Capture (CDC) feature. CDC allows the connector to simply subscribe to these table changes and then publish the changes to selected Kafka topics.
8 |
9 | More documentation to follow.
10 |
11 | ## Kafka Connect YugabyteDB Sink Connector
12 |
13 | In this approach, the sink connector delivers data from Kafka topics into YugabyteDB tables. The connector subscribes to specific topics in Kafka and then writes to specific tables in YugabyteDB as soon as new messages are received in the selected topics.
14 |
15 | ### Prerequisites
16 |
17 | For building and using this project, we requires following tools pre-installed on the system.
18 |
19 | - JDK - 1.8+
20 | - Maven - 3.3+
21 | - Clone this repo into `~/yb-kafka/yb-kafka-connector/` directory.
22 |
23 |
24 | ### Steps to setup and run connect sink
25 |
26 | 1. Setup and start Kafka
27 |
28 | - Download the Apache Kafka tarball
29 |
30 | ```
31 | mkdir -p ~/yb-kafka
32 | cd ~/yb-kafka
33 | wget http://apache.cs.utah.edu/kafka/2.0.0/kafka_2.11-2.0.0.tgz
34 | tar -xzf kafka_2.11-2.0.0.tgz
35 | ```
36 | Any latest version can be chosen, this is just as a sample.
37 | - Start Zookeeper and Kafka server
38 |
39 | ```
40 | ~/yb-kafka/kafka_2.11-2.0.0/bin/zookeeper-server-start.sh config/zookeeper.properties &
41 | ~/yb-kafka/kafka_2.11-2.0.0/bin/kafka-server-start.sh config/server.properties &
42 | ```
43 | - Create a Kafka topic
44 |
45 | ```
46 | $ ~/yb-kafka/kafka_2.11-2.0.0/bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
47 | ```
48 | This needs to be done only once.
49 |
50 | - Run the following to produce data in that topic:
51 |
52 | ```
53 | $ ~/yb-kafka/kafka_2.11-2.0.0/bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test_topic
54 | ```
55 | Just cut-and-paste the following lines at the prompt:
56 |
57 | ```
58 | {"key" : "A", "value" : 1, "ts" : 1541559411000}
59 | {"key" : "B", "value" : 2, "ts" : 1541559412000}
60 | {"key" : "C", "value" : 3, "ts" : 1541559413000}
61 | ```
62 | Feel free to `Ctrl-C` this process or switch to a different shell as more values can be added later as well to the same topic.
63 |
64 | 2. Install YugabyteDB and create the keyspace/table.
65 |
66 | - [Install YugabyteDB and start a local cluster](https://docs.yugabyte.com/quick-start/install/).
67 | - Create a keyspace and table by running the following command. You can find `cqlsh` in the `bin` subdirectory located inside the YugabyteDB installation folder.
68 |
69 | ```sh
70 | $> cqlsh
71 | cqlsh> CREATE KEYSPACE IF NOT EXISTS demo;
72 | cqlsh> CREATE TABLE demo.test_table (key text, value bigint, ts timestamp, PRIMARY KEY (key));
73 | ```
74 |
75 | 3. Set up and run the Kafka Connect Sink
76 |
77 | - Setup the required jars needed by connect
78 |
79 | ```
80 | cd ~/yb-kafka/yb-kafka-connector/
81 | mvn clean install -DskipTests
82 | cp ~/yb-kafka/yb-kafka-connector/target/yb-kafka-connnector-1.0.0.jar ~/yb-kafka/kafka_2.11-2.0.0/libs/
83 | cd ~/yb-kafka/kafka_2.11-2.0.0/libs/
84 | wget http://central.maven.org/maven2/io/netty/netty-all/4.1.25.Final/netty-all-4.1.25.Final.jar
85 | wget http://central.maven.org/maven2/com/yugabyte/cassandra-driver-core/3.2.0-yb-18/cassandra-driver-core-3.2.0-yb-18.jar
86 | wget http://central.maven.org/maven2/com/codahale/metrics/metrics-core/3.0.1/metrics-core-3.0.1.jar
87 | ```
88 |
89 | - Finally, run the connect sink in standalone mode:
90 |
91 | ```
92 | ~/yb-kafka/kafka_2.11-2.0.0/bin/connect-standalone.sh ~/yb-kafka/yb-kafka-connector/resources/examples/kafka.connect.properties ~/yb-kafka/yb-kafka-connector/resources/examples/yugabyte.sink.properties
93 | ```
94 |
95 | *Note*:
96 |
97 | - Setting the `bootstrap.servers` to a remote host/ports in the `kafka.connect.properties` file can help connect to any accessible existing Kafka cluster.
98 | - The `keyspace` and `tablename` values in the `yugabyte.sink.properties` file should match the values in the cqlsh commands in step 5.
99 | - The `topics` value should match the topic name from producer in step 6.
100 | - Setting the `yugabyte.cql.contact.points` to a non-local list of host/ports will help connect to any remote accessible existing YugaByte DB cluster.
101 |
102 | - Check the console output (optional)
103 |
104 | You should see something like this (relevant lines from `YBSinkTask.java`) on the console:
105 |
106 | ```
107 | [2018-10-28 16:24:16,037] INFO Start with keyspace=demo, table=test_table (com.yb.connect.sink.YBSinkTask:79)
108 | [2018-10-28 16:24:16,054] INFO Connecting to nodes: /127.0.0.1:9042,/127.0.0.2:9042,/127.0.0.3:9042 (com.yb.connect.sink.YBSinkTask:189)
109 | [2018-10-28 16:24:16,517] INFO Connected to cluster: cluster1 (com.yb.connect.sink.YBSinkTask:155)
110 | [2018-10-28 16:24:16,594] INFO Processing 3 records from Kafka. (com.yb.connect.sink.YBSinkTask:95)
111 | [2018-10-28 16:24:16,602] INFO Insert INSERT INTO demo.test_table(key,ts,value) VALUES (?,?,?) (com.yb.connect.sink.YBSinkTask:439)
112 | [2018-10-28 16:24:16,612] INFO Prepare SinkRecord ...
113 | [2018-10-28 16:24:16,618] INFO Bind 'ts' of type timestamp (com.yb.connect.sink.YBSinkTask:255)
114 | ...
115 | ```
116 |
117 | 4. Confirm that the rows are in the target table in the YugabyteDB cluster, using `cqlsh`.
118 |
119 | ```sh
120 | cqlsh> select * from demo.test_table;
121 | key | value | ts
122 | ----+-------+---------------------------------
123 | A | 1 | 2018-11-07 02:56:51.000000+0000
124 | C | 3 | 2018-11-07 02:56:53.000000+0000
125 | B | 2 | 2018-11-07 02:56:52.000000+0000
126 | ```
127 | Note that the timestamp value gets printed as a human-readable date format automatically.
128 |
129 | ## Future Work
130 |
131 | - Add more data types.
132 | - Add more tests.
133 | - Add restartability.
134 |
135 | ## License
136 |
137 | This software is distributed under an Apache 2.0 license. See the [LICENSE.txt](https://github.com/YugaByte/yb-kafka-connector/LICENSE) file for details.
138 |
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/logos/dsql-kafka.png:
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https://raw.githubusercontent.com/yugabyte/yb-kafka-connector/cb577685d278d116f79b80986fb0e8f5fb86fc01/logos/dsql-kafka.png
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/logos/yb_stacked_full_detail_dark_RGB.png:
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https://raw.githubusercontent.com/yugabyte/yb-kafka-connector/cb577685d278d116f79b80986fb0e8f5fb86fc01/logos/yb_stacked_full_detail_dark_RGB.png
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/pom.xml:
--------------------------------------------------------------------------------
1 |
2 |
15 |
16 |
18 | 4.0.0
19 | com.yb
20 | yb-kafka-connector
21 | 1.0.0
22 | Kafka Connect YB
23 |
24 |
25 | Kafka Connect to YugaByte DB.
26 |
27 |
28 |
29 |
30 |
31 |
32 | org.apache.kafka
33 | kafka-streams
34 | 0.10.1.1
35 |
36 |
37 | org.apache.kafka
38 | connect-api
39 | 2.0.0
40 |
41 |
42 |
43 |
44 | com.yugabyte
45 | cassandra-driver-core
46 | 3.2.0-yb-18
47 |
48 |
49 |
50 |
51 | log4j
52 | log4j
53 | 1.2.17
54 |
55 |
56 | org.slf4j
57 | slf4j-log4j12
58 | 1.7.25
59 |
60 |
61 | junit
62 | junit
63 | 4.12
64 |
65 |
66 |
67 |
68 |
69 |
70 | io.confluent
71 | 0.11.2
72 | kafka-connect-maven-plugin
73 |
74 |
75 |
76 | kafka-connect
77 |
78 |
79 | Kafka Connect Yugabyte
80 | https://docs.yugabyte.com/latest/develop/ecosystem-integrations/apache-kafka/
81 |
82 | The YugabyteDB connector allows moving data from Kafka to YugabyteDB 1.x, and 2.x. It writes data from a topic in Kafka to an index in Yugabyte and all data for a topic have the same type.
83 |
84 | YugabyteDB is a high-performance, distributed SQL database built on a scalable and fault-tolerant design inspired by Google Spanner. Yugabyte’s SQL API (YSQL) supports most of PostgreSQL’s functionality and is wire-protocol compatible with PostgreSQL drivers.
85 |
86 | logos/yb_stacked_full_detail_dark_RGB.png
87 |
88 | Yugabyte, Inc.
89 | Yugabyte supports the Yugabyte sink connector.
90 | https://github.com/YugaByte/yb-kafka-connector/issues
91 | logos/yb_stacked_full_detail_dark_RGB.png
92 |
93 | yugabyteinc
94 | organization
95 | Yugabyte, Inc.
96 | https://yugabyte.com/
97 | logos/yb_stacked_full_detail_dark_RGB.png
98 |
99 | yugabytedb
100 | yugabyte
101 | ${project.version}
102 |
103 |
104 | sink
105 |
106 |
107 |
108 | Database
109 | yugabyte
110 | sql
111 | cql
112 | redis
113 |
114 |
115 |
116 | YugabyteDB 1.x, 2.x
117 |
118 |
119 |
120 | exactlyOnce
121 |
122 |
123 | true
124 |
125 |
126 |
127 |
128 |
129 | org.apache.maven.plugins
130 | maven-compiler-plugin
131 | 3.3
132 |
133 | 1.8
134 | 1.8
135 |
136 |
137 |
138 |
139 |
140 |
141 |
--------------------------------------------------------------------------------
/resources/examples/kafka.connect.properties:
--------------------------------------------------------------------------------
1 | # Sample file with Kafka server properties.
2 |
3 | # Parameters for use by (local) Kafka server.
4 | bootstrap.servers=localhost:9092
5 | offset.storage.file.filename=/tmp/yb.connect.offsets
6 | offset.flush.interval.ms=10000
7 |
8 | # Format of data in Kafka and how to translate it into YB connect sink data.
9 | key.converter=org.apache.kafka.connect.storage.StringConverter
10 | value.converter=org.apache.kafka.connect.json.JsonConverter
11 | key.converter.schemas.enable=false
12 | value.converter.schemas.enable=false
13 |
14 | # Location of YB sink jar.
15 | plugin.path=share/java
16 |
--------------------------------------------------------------------------------
/resources/examples/yugabyte.sink.properties:
--------------------------------------------------------------------------------
1 | # Sample yugabyte sink properties.
2 |
3 | name=yugabyte-sink
4 | connector.class=com.yb.connect.sink.YBSinkConnector
5 |
6 | topics=test_topic
7 |
8 | yugabyte.cql.keyspace=demo
9 | yugabyte.cql.tablename=test_table
10 | yugabyte.cql.contact.points=127.0.0.1:9042,127.0.0.2:9042,127.0.0.3:9042
11 |
--------------------------------------------------------------------------------
/src/main/java/com/yb/connect/sink/YBSinkConnector.java:
--------------------------------------------------------------------------------
1 | // Copyright (c) YugaByte, Inc.
2 | //
3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
4 | // in compliance with the License. You may obtain a copy of the License at
5 | //
6 | // http://www.apache.org/licenses/LICENSE-2.0
7 | //
8 | // Unless required by applicable law or agreed to in writing, software distributed under the License
9 | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
10 | // or implied. See the License for the specific language governing permissions and limitations
11 | // under the License.
12 | //
13 |
14 | package com.yb.connect.sink;
15 |
16 | import java.util.ArrayList;
17 | import java.util.List;
18 | import java.util.Map;
19 | import java.util.stream.IntStream;
20 |
21 | import org.apache.kafka.common.config.ConfigDef;
22 | import org.apache.kafka.connect.connector.Task;
23 | import org.apache.kafka.connect.sink.SinkConnector;
24 |
25 | /**
26 | * YugaByte Sink connector.
27 | */
28 | public class YBSinkConnector extends SinkConnector {
29 | private static final String VERSION = "1";
30 |
31 | private Map properties;
32 |
33 | @Override
34 | public String version() {
35 | return VERSION;
36 | }
37 |
38 | @Override
39 | public void start(final Map properties) {
40 | this.properties = properties;
41 | }
42 |
43 | @Override
44 | public Class extends Task> taskClass() {
45 | return YBSinkTask.class;
46 | }
47 |
48 | @Override
49 | public List