flume启动 No resolvable bootstrap urls given in bootstrap.servers

代码片

Exception in thread "main" org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:702)
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:557)
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:540)
    at org.apache.spark.sql.kafka010.SubscribeStrategy.createConsumer(ConsumerStrategy.scala:62)
    at org.apache.spark.sql.kafka010.KafkaOffsetReader.createConsumer(KafkaOffsetReader.scala:314)
    at org.apache.spark.sql.kafka010.KafkaOffsetReader.<init>(KafkaOffsetReader.scala:78)
    at org.apache.spark.sql.kafka010.KafkaSourceProvider.createContinuousReader(KafkaSourceProvider.scala:130)
    at org.apache.spark.sql.kafka010.KafkaSourceProvider.createContinuousReader(KafkaSourceProvider.scala:43)
    at org.apache.spark.sql.streaming.DataStreamReader.load(DataStreamReader.scala:185)
    at com.structured.APP.structuredJava.main(structuredJava.java:24)
Caused by: org.apache.kafka.common.config.ConfigException: No resolvable bootstrap urls given in bootstrap.servers
    at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:59)
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:620)
    ... 9 more

解决方法：
1，/etc/hosts域名配置文件没配
2，需checkpoint和data目录清空后再重启