感觉好像是应为从checkpoint启动失败或者是checkpiont文件里面不包含groupby的中间结果,这个怎么排查呀!
godfrey he wrote
> 为什么要 GROUP BY id,name ,description, weight ？
> 直接 "INSERT INTO sink SELECT id,name ,description, weight FROM
> debezium_source" 不能满足需求？
>
> 曹武 <
> 14701319164@
>> 于2020年7月16日周四 下午9:30写道：
>
>> 我在使用flink 1.11.0中得ddl 部分 采用debezium-json做cdc得时候
>> 从checkpoint恢复以后,新来op=d的数据会删除失败
>> 重启命令:./bin/flink run -m yarn-cluster /root/bigdata-flink-1.0.jar -s
>>
>> hdfs://prehadoop01:8020/flink/checkpoints/4cc5df8b96e90c1c2a4d3719a77f51d1/chk-819/_metadata
>> 代码: EnvironmentSettings settings = EnvironmentSettings.newInstance()
>> .useBlinkPlanner()
>> .inStreamingMode()
>> .build();
>>
>> StreamExecutionEnvironment env =
>> StreamExecutionEnvironment.getExecutionEnvironment();
>>
>> env.enableCheckpointing(1000, CheckpointingMode.EXACTLY_ONCE);
>> env.getCheckpointConfig().setCheckpointTimeout(6000L); // 超时时间
>> env.getCheckpointConfig().setMaxConcurrentCheckpoints(1); //
>> 最大允许同时出现几个CheckPoint
>> env.getCheckpointConfig().setMinPauseBetweenCheckpoints(10L); //
>> 最小得间隔时间
>> env.getCheckpointConfig().setPreferCheckpointForRecovery(true);
>> //
>> 是否倾向于用CheckPoint做故障恢复
>> env.getCheckpointConfig().setTolerableCheckpointFailureNumber(1);
>> //
>> 容忍多少次CheckPoint失败
>> //Checkpoint文件清理策略
>>
>>
>> env.getCheckpointConfig().enableExternalizedCheckpoints(CheckpointConfig.ExternalizedCheckpointCleanup.RETAIN_ON_CANCELLATION);
>> //Checkpoint外部文件路径
>> env.setStateBackend(new FsStateBackend(new
>> URI("hdfs://172.22.20.205:8020/flink/checkpoints"), false));
>> TimeUnit.MINUTES), Time.of(10, TimeUnit.SECONDS)));
>> StreamTableEnvironment tEnv = StreamTableEnvironment.create(env,
>> settings);
>> String sourceDDL = String.format(
>> "CREATE TABLE debezium_source (" +
>> " id INT NOT NULL," +
>> " name STRING," +
>> " description STRING," +
>> " weight Double" +
>> ") WITH (" +
>> " 'connector' = 'kafka-0.11'," +
>> " 'topic' = '%s'," +
>> " 'properties.bootstrap.servers' = '%s'," +
>> " 'scan.startup.mode' = 'group-offsets'," +
>> " 'format' = 'debezium-json'" +
>> ")", "ddd", " 172.22.20.206:9092");
>> String sinkDDL = "CREATE TABLE sink (" +
>> " id INT NOT NULL," +
>> " name STRING," +
>> " description STRING," +
>> " weight Double," +
>> " PRIMARY KEY (id,name, description,weight) NOT ENFORCED
>> "
>> +
>> ") WITH (" +
>> " 'connector' = 'jdbc'," +
>> " 'url' =
>> 'jdbc:mysql://172.27.4.22:3306/test?autoReconnect=true'," +
>> " 'table-name' = 'products'," +
>> " 'driver'= 'com.mysql.cj.jdbc.Driver'," +
>> " 'username'='DataPip'," +
>> " 'password'='DataPip'" +
>> ")";
>> String dml = "INSERT INTO sink SELECT id,name ,description,
>> weight
>> FROM debezium_source GROUP BY id,name ,description, weight";
>> tEnv.executeSql(sourceDDL);
>> tEnv.executeSql(sinkDDL);
>> tEnv.executeSql(dml);
>>
>>
>>
>> --
>> Sent from: http://apache-flink.147419.n8.nabble.com/
>>
--
Sent from: http://apache-flink.147419.n8.nabble.com/
