设置多个Kafka Connect接收器

我正在处理从PostgreSQL到HDFS的数据流。我在HDP 2.6沙盒上设置了融合环境。我的PostgreSQL的JDBC源配置是

name=jdbc_1
connector.class=io.confluent.connect.jdbc.JdbcSourceConnector
tasks.max=1
connection.url=jdbc:postgresql://host:port/db?currentSchema=schema&user=user&password=password
mode=timestamp
timestamp.column.name=col1
validate.non.null=false
topic.prefix=psql-

连接的所有其他属性也很好,我正在运行它

./bin/connect-standalone ./etc/kafka/connect-standalone.properties ./etc/kafka-connect-jdbc/source.properties

它工作良好,并根据数据库中表的数量创建主题

psql-table1
psql-table2

现在,我想对所有主题运行hdfs sink,为PostgreSQL数据库中的每个表创建单独的dir。 但是当我用命令运行hdfs sink时

./bin/connect-standalone ./etc/kafka/connect-standalone.properties ./etc/kafka-connect-hdfs/hdfs-postGres.properties

通过运行源代码,我会出错

ERROR Stopping after connector error (org.apache.kafka.connect.cli.ConnectStandalone:113)
org.apache.kafka.connect.errors.ConnectException: Unable to start REST server
at org.apache.kafka.connect.runtime.rest.RestServer.start(RestServer.java:214)
at org.apache.kafka.connect.runtime.Connect.start(Connect.java:53)
at org.apache.kafka.connect.cli.ConnectStandalone.main(ConnectStandalone.java:95)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:331)
at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:299)
at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:235)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.server.Server.doStart(Server.java:398)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.apache.kafka.connect.runtime.rest.RestServer.start(RestServer.java:212)
... 2 more

如果我停止源连接并启动水槽,它就会正常工作。 任何人都可以帮助我如何设置多个接收器连接器。