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yugong

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目的

  • SQL Server -> MySQL 的一致性检查(CHECK)
  • MySQL -> SQL Server 的回滚(SYNC)

获得 yugong jar 包

方法一:编译 yugong jar 包:

git git@gitlab.yeshj.com:hjarch-practice/yugong.git
cd yugong
mvn clean package
cp target/yugong-shaded.jar .

方法二: 不想编译的同学, 直接点击 Tags · HJArch-Internal / yugong · GitLab , 找到里面最新的版本,里面有 jar 包下载。

配置文件

有两个配置文件:

  • properties,配置数据库信息和作业信息
  • YAML 配置文件,做 Translator 定制化

修改配置文件,可以参考其他产线已经在用的配置: Files · master · HJArch-Internal / yugong-conf · GitLab

运行

HJ 使用的 yugong 已经改为 fat jar 模式运行,摒弃了官方的打包流程。 将生成的 fat jar yugong-shaded.jar 拷贝到服务器,即可运行。

运行参数:

  • -c:使用的 yugong properties,配置数据库信息和作业信息
  • -y:使用的 YAML 配置文件,做 Translator 定制化

运行命令:

java -jar yugong-shaded.jar -c sync-mssql-mysql.properties -y mssql-mysql.yaml

PS:如果想优化运行速度,可以加入 JAVA_OPTIONS

JAVA_OPTIONS=("-Xms2048m" "-Xmx3072m" "-Xmn1024m" "-XX:SurvivorRatio=2" "-XX:PermSize=96m" "-XX:MaxPermSize=256m" "-Xss256k" "-XX:-UseAdaptiveSizePolicy" "-XX:MaxTenuringThreshold=15" "-XX:+DisableExplicitGC" "-XX:+UseConcMarkSweepGC" "-XX:+CMSParallelRemarkEnabled" "-XX:+UseCMSCompactAtFullCollection" "-XX:+UseFastAccessorMethods" "-XX:+UseCMSInitiatingOccupancyOnly" "-XX:+HeapDumpOnOutOfMemoryError")
java -server $JAVA_OPTIONS -jar yugong-shaded.jar -c sync-mssql-mysql.properties -y mssql-mysql.yaml

运行之后的错误检查

所有错误日志在 logs 目录下面,范例如下:

logs
├── HJ_OpenPlatform.UserGroups  # 每张表的日志
│   ├── applier.log  # Applier 日志
│   ├── check.log  # 一致性检查日志
│   ├── extractor.log  # Extractor 日志
│   └── table.log  # 表操作日志
└── yugong
    └── table.log  # yugong 的系统日志

运行之后,需要重点观察 check.logtable.log 确保里面没有 ERROR 信息。

可以通过 grep -r ERROR logs 检查错误。

每次操作会记录进度,用来断点续接。想重新开始跑应用, 需要删除当前目录下的 logs / positioner_data

Quick Start

获取 yugong-shaded.jar 之后,做一下操作可以快速使用 yugong:

Tips

odjbc missing:

ould not resolve dependencies for project com.taobao.yugong:yugong:jar:1.2.0: The following artifacts could not be resolved: com.oracle:ojdbc14:jar:10.2.0.4.0, com.alibaba.otter:canal.client:jar:1.0.25-SNAPSHOT: Failure to find com.oracle:ojdbc14:jar:10.2.0.4.0 in http://maven.aliyun.com/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of maven.aliyun.com has elapsed or updates are forced

open http://www.oracle.com/technetwork/apps-tech/jdbc-10201-088211.html
# download ojbc14_g.jar
mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc14 -Dversion=10.2.0.4.0 -Dpackaging=jar -Dfile=ojdbc14_g.jar -DgeneratePom=true

canal-client missing:

Could not resolve dependencies for project com.taobao.yugong:yugong:jar:1.2.0: Failure to find com.alibaba.otter:canal.client:jar:1.0.25-SNAPSHOT in https://oss.sonatype.org/content/repositories/snapshots was cached in the local repository, resolution will not be reattempted until the update interval of sonatype has elapsed or updates are forced

git clone https://github.com/alibaba/canal
cd canal
git checkout 2cebfa0
mvn clean install

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