Camel kafka 組件無法從啟用 ssl 的主題讀取消息

Question

駱駝卡夫卡組件無法讀取啟用 ssl 的消息，它也沒有給出任何錯誤，下面是我的路由器

任何人，請幫助我如何解決此類問題，它也不顯示錯誤/失敗日志。

from("kafka:testtopic9?brokers=<domain-name>:9092"
        + "&groupId=test"
        + "&sslKeyPassword=12345"
        + "&sslKeystorePassword=12345"
        + "&securityProtocol=SASL_SSL"
        + "&sslTruststoreLocation=kafka.client.truststore.jks"
        + "&saslMechanism=PLAIN"
        + "&keyDeserializer=org.apache.kafka.common.serialization.IntegerDeserializer"
        + "&valueDeserializer=org.apache.kafka.common.serialization.StringDeserializer"
        + "&saslJaasConfig=org.apache.kafka.common.security.plain.PlainLoginModule required username=\"user1\" password=\"user1")
    .log("fetching data from broker :: ${body}")

在日志中，它僅顯示配置屬性值，而沒有顯示更多日志，例如訂閱主題等...：

<pre>
03-12-2020 12:56:06.871 [main] INFO  o.s.s.c.ThreadPoolTaskExecutor.initialize - Initializing ExecutorService 'applicationTaskExecutor'
03-12-2020 12:56:07.538 [main] INFO  o.a.c.i.c.DefaultTypeConverter.doStart - Type converters loaded (core: 195, classpath: 14)
03-12-2020 12:56:07.899 [main] INFO  o.a.coyote.http11.Http11NioProtocol.log - Starting ProtocolHandler ["http-nio-8080"]
03-12-2020 12:56:07.923 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer.start - Tomcat started on port(s): 8080 (http) with context path ''
03-12-2020 12:56:07.942 [main] INFO  o.a.c.spring.boot.RoutesCollector.loadXmlRoutes - Loading additional Camel XML routes from: classpath:camel/*.xml
03-12-2020 12:56:07.942 [main] INFO  o.a.c.spring.boot.RoutesCollector.loadXmlRests - Loading additional Camel XML rests from: classpath:camel-rest/*.xml
03-12-2020 12:56:07.951 [main] INFO  o.a.camel.spring.SpringCamelContext.start - Apache Camel 2.25.2 (CamelContext: camel-1) is starting
03-12-2020 12:56:07.952 [main] INFO  o.a.c.m.ManagedManagementStrategy.doStart - JMX is enabled
03-12-2020 12:56:08.104 [main] INFO  o.a.camel.spring.SpringCamelContext.doStartCamel - StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
03-12-2020 12:56:08.135 [main] INFO  o.a.c.component.kafka.KafkaConsumer.doStart - Starting Kafka consumer on topic: testtopic9 with breakOnFirstError: false
03-12-2020 12:56:08.145 [main] INFO  o.a.camel.spring.SpringCamelContext.doStartOrResumeRouteConsumers - Route: route1 started and consuming from: kafka://testtopic9?brokers=<domain-name>%3A9092&groupId=test&keyDeserializer=org.apache.kafka.common.serialization.IntegerDeserializer&saslJaasConfig=xxxxxx&saslMechanism=PLAIN&securityProtocol=SASL_SSL&sslKeyPassword=xxxxxx&sslKeystorePassword=xxxxxx&sslTruststoreLocation=C%3A%5CUsers%5CSRJANA%5CDesktop%5CKafka%5Ckafka.client.truststore.jks&valueDeserializer=org.apache.kafka.common.serialization.StringDeserializer
03-12-2020 12:56:08.148 [main] INFO  o.a.camel.spring.SpringCamelContext.start - Total 1 routes, of which 1 are started
03-12-2020 12:56:08.149 [main] INFO  o.a.camel.spring.SpringCamelContext.start - Apache Camel 2.25.2 (CamelContext: camel-1) started in 0.198 seconds
03-12-2020 12:56:08.151 [main] INFO  c.c.cdc.CDCPostProcessorApplication.logStarted - Started CDCPostProcessorApplication in 3.409 seconds (JVM running for 4.561)
03-12-2020 12:56:08.160 [Camel (camel-1) thread #1 - KafkaConsumer[testtopic9]] INFO  o.a.k.c.consumer.ConsumerConfig.logAll - ConsumerConfig values: 
allow.auto.create.topics = true
    auto.commit.interval.ms = 5000
    auto.offset.reset = latest
    bootstrap.servers = [ <domain-name> ]
    check.crcs = true
    client.dns.lookup = default
    client.id = 
    client.rack = 
    connections.max.idle.ms = 540000
    default.api.timeout.ms = 60000
    enable.auto.commit = true
    exclude.internal.topics = true
    fetch.max.bytes = 52428800
    fetch.max.wait.ms = 500
    fetch.min.bytes = 1
    group.id = e0a4fadb-5e12-49ab-87d5-3b124d3e1c76
    group.instance.id = null
    heartbeat.interval.ms = 3000
    interceptor.classes = []
    internal.leave.group.on.close = true
    isolation.level = read_uncommitted
    key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
    max.partition.fetch.bytes = 1048576
    max.poll.interval.ms = 300000
    max.poll.records = 500
    metadata.max.age.ms = 300000
    metric.reporters = []
    metrics.num.samples = 2
    metrics.recording.level = INFO
    metrics.sample.window.ms = 30000
    partition.assignment.strategy = [org.apache.kafka.clients.consumer.RangeAssignor]
    receive.buffer.bytes = 65536
    reconnect.backoff.max.ms = 50
    reconnect.backoff.ms = 50
    request.timeout.ms = 40000
    retry.backoff.ms = 100
    sasl.client.callback.handler.class = null
    sasl.jaas.config = null
    sasl.kerberos.kinit.cmd = /usr/bin/kinit
    sasl.kerberos.min.time.before.relogin = 60000
    sasl.kerberos.service.name = null
    sasl.kerberos.ticket.renew.jitter = 0.05
    sasl.kerberos.ticket.renew.window.factor = 0.8
    sasl.login.callback.handler.class = null
    sasl.login.class = null
    sasl.login.refresh.buffer.seconds = 300
    sasl.login.refresh.min.period.seconds = 60
    sasl.login.refresh.window.factor = 0.8
    sasl.login.refresh.window.jitter = 0.05
    sasl.mechanism = GSSAPI
    security.protocol = PLAINTEXT
    security.providers = null
    send.buffer.bytes = 131072
    session.timeout.ms = 10000
    ssl.cipher.suites = null
    ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
    ssl.endpoint.identification.algorithm = https
    ssl.key.password = null
    ssl.keymanager.algorithm = SunX509
    ssl.keystore.location = null
    ssl.keystore.password = null
    ssl.keystore.type = JKS
    ssl.protocol = TLS
    ssl.provider = null
    ssl.secure.random.implementation = null
    ssl.trustmanager.algorithm = PKIX
    ssl.truststore.location = null
    ssl.truststore.password = null
    ssl.truststore.type = JKS
    value.deserializer = class org.apache.kafka.common.serialization.StringDeserializer

</pre>

Answer 1

你確定你這里有問題嗎？ 如果與代理的 SSL 連接不起作用，我預計路由會失敗。 但是路由已經啟動了。

您的消費者設置中有auto.offset.reset = latest 。 這意味着消費者在第一次連接時會忽略所有現有消息。

consumer 啟動並連接后是否給topic 發過消息？