不是不报错 是你没引入 log4j文件 ，此回答整理自钉群“Flink CDC 社区”
最常见原因是未将依赖的HadoopJAR 文件加到 CLASSPATH,找不到依赖类(例如:ClassNotFoundException:org.apache.hadoop.yarn.exceptions.YarnException)导致加载客户端入口类(FlinkYarnSessionCli)失败。 用户应用和框架 JAR 包版本冲突问题 该问题通常会抛出 NoSuchMethodError/ClassNotFoundException/IncompatibleClassChangeError...
Caused by: java.lang.IllegalStateException: The connector is trying to read binlog starting at Struct{version=1.9.7.Final,connector=mysql,name=mysql_binlog_source,ts_ms=1702519739599,db=,server_id=0,file=mysql-bin.000001,pos=54782888,row=0}, but this is no longer available on the server....
DataStream<String>data=env.addSource(newCustomSource());data.map(newMapFunction<String,String>(){@OverridepublicStringmap(Stringvalue)throwsException{returnvalue.toUpperCase();}}).filter(newFilterFunction<String>(){@Overridepublicbooleanfilter(Stringvalue)throwsException{returnvalue.startsWith("A");}})....
二,UnsupportedFileSystemSchemeException: Hadoop is not in the classpath/dependencies. 三,javademo错误 四,flink wordcount没有输出 五,Hadoop is not in the classpath/dependencies. 六,结果写入hdfs报错 七,命令行提交per job报错 八,运行滚动窗口demo报错 九,使用flink sql时报错 十,使用flink sql报错 十一...
[] args) throws Exception { MySqlSource<String> mySqlSource = MySqlSource.<String>builder() .hostname("yourHostname") .port(yourPort) .databaseList("yourDatabaseName") // set captured database .tableList("yourDatabaseName.yourTableName") // set captured table .username("yourUsername") ...
最常见原因是未将依赖的 Hadoop JAR 文件加到 CLASSPATH,找不到依赖类(例如:ClassNotFoundException:org.apache.hadoop.yarn.exceptions.YarnException)导致加载客户端入口类(FlinkYarnSessionCli)失败。 用户应用和框架 JAR 包版本冲突问题 该问题通常会抛出 NoSuchMethodError/ClassNotFoundException/IncompatibleClassChange...
Exception in thread "main" org.apache.flink.table.client.SqlClientException: Unexpected exception. This is a bug. Please consider filing an issue. at org.apache.flink.table.client.SqlClient.main(SqlClient.java:215) Caused by: java.lang.NoSuchMethodError: com.google.common.base.Preconditions.check...
importorg.apache.flink.streaming.api.datastream.DataStreamSource;importorg.apache.flink.streaming.api.environment.StreamExecutionEnvironment;importjava.util.HashMap;importjava.util.Map;importjava.util.Properties;publicclassMain{publicstaticvoidmain(String[] args)throwsException {StreamExecutionEnvironmentenv=...
2.今天在启动Flink任务的时候报错Caused by: java.lang.RuntimeException: Couldn't deploy Yarn cluster,然后仔细看发现里面有这么一句话system times on machines may be out of sync,意思说是机器上的系统时间可能不同步. (1)安装ntpdate工具 yum -y install ntp ntpdate ...