high-availability.zookeeper.path.root: /flink ZooKeeper节点根⽬录，其下放置所有集群节点的namespace。4.No data sinks have been created yet. A program needs at least one sink that consumes data. Examples are writing the data set or printing it.这个错是因为没有sink,解决⽅法是execute执⾏前...
这个错是因为scala的隐式转换的问题. 导入这个包就好了.import org.apache.flink.streaming.api.scala._ 6,有时候在重启Flink作业的时候会抛出异常,Wrong / missing exception when submitting job,这个实际是Flink的一个BUG,已经修复了,具体的情况可以看下jira,https://issues./jira/browse/FLINK-10312 7,Flink启...
这个错是因为scala的隐式转换的问题. 导入这个包就好了.import org.apache.flink.streaming.api.scala._ 6,有时候在重启Flink作业的时候会抛出异常,Wrong / missing exception when submitting job,这个实际是Flink的一个BUG,已经修复了,具体的情况可以看下jira,https://issues.apache.org/jira/browse/FLINK-10312 ...
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/IncompatibleClassChangeE...
[root@utility ~]# hadoop fs -ls / WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete. Exception in thread "main" java.lang.RuntimeException: core-site.xml not found at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2867) ...
EXECUTE CDCSOURCE demo_print WITH ( 'connector' = 'mysql-cdc', 'hostname' = '127.0.0.1', 'port' = '3306', 'username' = 'root', 'password' = '123456', 'checkpoint' = '10000', 'scan.startup.mode' = 'initial', 'parallelism' = '1', 'table-name' = 'test.student,test.score...
conn = DriverManager.getConnection("jdbc:mysql://localhost/test", "root", "123456") pst = conn.prepareStatement("select name from t_phone where phone_number =?") } override def map(in: StationLog): StationLog = { //查询主叫用户的名字 ...
# log level INFO. The root logger does not override this. You have to manually # change the log levels here. log4j.logger.akka=WARN log4j.logger.org.apache.kafka=INFO log4j.logger.org.apache.hadoop=WARN log4j.logger.org.apache.zookeeper=WARN ...
public static void main(String[] args) throws Exception { // the host and the port to connect to final String hostname; final int port; try { final ParameterTool params = ParameterTool.fromArgs(args); hostname = params.has("hostname") ? params.get("hostname") : "localhost"; ...
publicstaticvoidmain(String[]args)throwsException{FilelocalStateRootDirectory=newFile("D:\\product\\test");localStateRootDirectory.mkdirs();// File[] files = localStateRootDirectory.listFiles() ;Files.list(localStateRootDirectory.toPath()).filter(path->path.getFileName().toString().startsWith("a"...