33

I'm pretty sure the bootstrap.servers is correct. Is there anything confliction in Maven or what wrong with Kafka??

Before that It was working successfully. I added some Maven or Spark then something went wrong..

Can anyone knows how to resolve it?

Here is kafka code in java

Properties props = new Properties();
        props.put("bootstrap.servers", "x.xx.xxx.xxx:9092");
        props.put("metadata.broker.list", "x.xx.xxx.xxx:9091, x.xx.xxx.xxx:9092, x.xx.xxx.xxx:9093");

        props.put("producer.type", "async");
        props.put("batch.size", "500");
        props.put("compression.codec", "1");
        props.put("compression.topic", topicName);
        props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");

            org.apache.kafka.clients.producer.Producer<String, String> producer = new KafkaProducer<String, String>(
                    props);

Getting error No resolvable bootstrap urls given in bootstrap servers,

[err]   at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:335)
    [err]   at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:188)
    [err]   at com.wra.controller.ParserController.GetResumeUpload(ParserController.java:98)
    [err]   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [err]   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
    [err]   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
    [err]   at java.lang.reflect.Method.invoke(Method.java:508)
    [err]   at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    [err]   at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
    [err]   at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
    [err]   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    [err]   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    [err]   at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    [err]   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
    [err]   at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
    [err]   at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    [err]   at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    [err]   at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    [err]   at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    [err]   at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    [err]   at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1290)
    [err]   at [internal classes]
    [err]   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    [err]   at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:207)
    [err]   at [internal classes]
    [err]   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1153)
    [err]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    [err]   at java.lang.Thread.run(Thread.java:785)
    [err] Caused by: 
    [err] org.apache.kafka.common.config.ConfigException: No resolvable bootstrap urls given in bootstrap.servers
    [err]   at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:59)
    [err]   at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:275)
    [err]   ... 51 more
Stefan Zobel
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Vimal Dhaduk
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6 Answers6

19

"metadata.broker.list" is deprecated and "bootstrap.servers" is used instead. Removing "metadata.broker.list" configuration from your code should resolve the problem. Please find more details at difference between bootstrap.servers and metadata.broker.list

Noviff
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6

In my case,the bootstrap.servers were not in the host:port format

Zafar Nasim
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  • Please add further details to expand on your answer, such as working code or documentation citations. – Community Sep 09 '21 at 06:45
  • 1
    Thanks for help, i also configured bootstrap.servers as 127.0.0.1 instead of 127.0.0.1:9092. I added port and now it works. – macieg_b Feb 09 '22 at 13:06
6

in my case simply company vpn was down and couldn't access servers

Spring
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3

For anyone encountering this issue with MapR client libraries, you will get this if you forget the / on the front of the stream name.

MikeKulls
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0

I ran kafka broker and myapp with kafka client in different containers and in my case i did not added param network when ran container with my app.

    docker run -it --rm --network example_network my_repo/my_image:my_tag

The network (example_network) has to be specified in the broker container.

SternK
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Тимур Тухтаров
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0

This error can indicate a network connectivity issue. For example, it is triggered if the server host is unknown (no IP associated).

Cerdicipe
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