目前yugabyte 的cdc 功能处于beta 阶段，应该也快实际可用了，以下是一个简单的试用
环境准备
使用docker-compose
- docker-compose 文件
version: '2'
services:
cdc-connector:
build: ./
graphql-engine:
image: hasura/graphql-engine:v1.0.0-beta.6
ports:
- "8080:8080"
environment:
HASURA_GRAPHQL_DATABASE_URL: postgres://postgres@yb-tserver2:5433/postgres
HASURA_GRAPHQL_ENABLE_CONSOLE: "true" # set to "false" to disable console
HASURA_GRAPHQL_ENABLED_LOG_TYPES: startup, http-log, webhook-log, websocket-log, query-log
yb-master:
image: yugabytedb/yugabyte:latest
container_name: yb-master-n1
command: [ "/home/yugabyte/bin/yb-master",
"--fs_data_dirs=/mnt/disk0,/mnt/disk1",
"--master_addresses=yb-master-n1:7100",
"--replication_factor=1"]
ports:
- "7000:7000"
environment:
SERVICE_7000_NAME: yb-master
yb-tserver:
image: yugabytedb/yugabyte:latest
container_name: yb-tserver-n1
command: [ "/home/yugabyte/bin/yb-tserver",
"--fs_data_dirs=/mnt/disk0,/mnt/disk1",
"--start_pgsql_proxy",
"--tserver_master_addrs=yb-master-n1:7100"]
ports:
- "9042:9042"
- "6379:6379"
- "5433:5433"
- "9000:9000"
environment:
SERVICE_5433_NAME: ysql
SERVICE_9042_NAME: ycql
SERVICE_6379_NAME: yedis
SERVICE_9000_NAME: yb-tserver
depends_on:
- yb-master
yb-tserver2:
image: yugabytedb/yugabyte:latest
container_name: yb-tserver-n2
command: [ "/home/yugabyte/bin/yb-tserver",
"--fs_data_dirs=/mnt/disk0,/mnt/disk1",
"--start_pgsql_proxy",
"--tserver_master_addrs=yb-master-n1:7100"]
ports:
- "9043:9042"
- "6380:6379"
- "5434:5433"
- "9001:9000"
environment:
SERVICE_5433_NAME: ysql
SERVICE_9042_NAME: ycql
SERVICE_6379_NAME: yedis
SERVICE_9000_NAME: yb-tserver
depends_on:
- yb-master
- 启动ysql
docker-compose exec yb-master bash -c "YB_ENABLED_IN_POSTGRES=1 FLAGS_pggate_master_addresses=yb-master-n1:7100 /home/yugabyte/postgres/bin/initdb -D /tmp/yb_pg_initdb_tmp_data_dir -U postgres"
- 创建数据库
CREATE TABLE users (name text, pass text, id int, primary key (id));
- 下载connector
https://github.com/yugabyte/yb-kafka-connector/blob/master/yb-cdc/yb-cdc-connector.jar
- 安装connector 到java ext 目录(本地)
以上demo使用的是docker 运行
Linux: jrelibextyb-cdc-connector.jar
macOS: LibraryJavaExtensionsyb-cdc-connector.jar
Windows: %SystemRoot%SunJavalibextyb-cdc-connector.jar
简单测试
没有使用kafka，使用的是 标准输出，为了简化测试 ，实际生产肯定应该使用kafaka
- 启动命令 （本地）
```code
java -jar yb_cdc_connector.jar --table_name postgres --master_addrs 127.0.0.1:7100 --log_only
* 启动模式
上边docker-compose up -d 之后会包含yb-cdc-connector
效果
```code
/usr/lib/python2.7/site-packages/requests/__init__.py:91: RequestsDependencyWarning: urllib3 (1.24.3) or chardet (2.2.1) doesn't match a supported version!
RequestsDependencyWarning)
Attaching to app_cdc-connector_1
cdc-connector_1 | [2019-10-18 02:36:00,907] INFO Starting CDC Kafka Connector... (org.yb.cdc.Main:28)
cdc-connector_1 | 2019-10-18 02:36:00,913 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Creating new YB client...
cdc-connector_1 | [2019-10-18 02:36:01,028] WARN Slow DNS lookup! Resolved IP of `yb-master' to 172.19.0.4 in 6093014ns (org.yb.client.AsyncYBClient:2102)
cdc-connector_1 | [2019-10-18 02:36:01,171] INFO Discovered tablet YB Master for table YB Master with partition ["", "") (org.yb.client.AsyncYBClient:1593)
cdc-connector_1 | 2019-10-18 02:36:02,195 [ERROR|org.yb.cdc.KafkaConnector|KafkaConnector] Could not find a table with name users
cdc-connector_1 | [2019-10-18 02:37:13,641] INFO Starting CDC Kafka Connector
cdc-connector_1 | 2019-10-18 02:37:13,648 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Creating new YB client
cdc-connector_1 | [2019-10-18 02:37:13,742] WARN Slow DNS lookup! Resolved IP of `yb-master' to 172.19.0.4 in 3880047ns (org.yb.client.AsyncYBClient:2102)
cdc-connector_1 | [2019-10-18 02:37:13,856] INFO Discovered tablet YB Master for table YB Master with partition ["", "") (org.yb.client.AsyncYBClient:1593)
cdc-connector_1 | 2019-10-18 02:37:13,868 [ERROR|org.yb.cdc.KafkaConnector|KafkaConnector] Could not find a table with name users
cdc-connector_1 | [2019-10-18 02:39:29,903] INFO Starting CDC Kafka Connector... (org.yb.cdc.Main:28)
cdc-connector_1 | 2019-10-18 02:39:29,909 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Creating new YB client...
cdc-connector_1 | [2019-10-18 02:39:30,003] WARN Slow DNS lookup! Resolved IP of `yb-master' to 172.19.0.4 in 3878725ns (org.yb.client.AsyncYBClient:2102)
cdc-connector_1 | [2019-10-18 02:39:30,125] INFO Discovered tablet YB Master for table YB Master with partition ["", "") (org.yb.client.AsyncYBClient:1593)
cdc-connector_1 | 2019-10-18 02:39:30,137 [ERROR|org.yb.cdc.KafkaConnector|KafkaConnector] Could not find a table with name users
cdc-connector_1 | [2019-10-18 02:41:15,985] INFO Starting CDC Kafka Connector
cdc-connector_1 | 2019-10-18 02:41:15,991 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Creating new YB client
cdc-connector_1 | [2019-10-18 02:41:16,089] WARN Slow DNS lookup! Resolved IP of `yb-master' to 172.19.0.4 in 3907821ns (org.yb.client.AsyncYBClient:2102)
cdc-connector_1 | [2019-10-18 02:41:16,208] INFO Discovered tablet YB Master for table YB Master with partition ["", "") (org.yb.client.AsyncYBClient:1593)
cdc-connector_1 | 2019-10-18 02:41:16,285 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Created new stream with id b0d1f019a5544fee8e4f0171f64e453b
cdc-connector_1 | 2019-10-18 02:41:16,291 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Polling for new tablet bf9fff471e8044cdaef702f0e7489741
cdc-connector_1 | 2019-10-18 02:41:16,292 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Polling for new tablet 66991b7373294418977409d50499ea5d
cdc-connector_1 | 2019-10-18 02:41:16,292 [INFO|org.yb.cdc.KafkaConnector|KafkaConnector] Polling for new tablet
cdc-conne
- 添加数据
INSERT INTO "public"."users"("name", "pass", "id") VALUES('dalong', 'eee', 1);
- 效果
说明
yugabyte cdc 对于实时数据处理，数据分析，数据传递，还是很方便的，基于此功能我们可以开发灵活的数据分析系统 ，当前还是beta 状态，很期待
可以ga