Kafka容器超时

Question

我已经在 aws 上使用 ansible 部署了基于 hyperldger-fabric kafka 的订购服务。直到昨天，一切对我来说都很好。今天当我启动网络时，kafka 容器无法与 zookeeper 通信。这是 docker kafka 容器的日志

[2017-11-16 08:23:36,075] FATAL Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000
    at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:1223)
    at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:155)
    at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:129)
    at kafka.utils.ZkUtils$.createZkClientAndConnection(ZkUtils.scala:89)
    at kafka.utils.ZkUtils$.apply(ZkUtils.scala:71)
    at kafka.server.KafkaServer.initZk(KafkaServer.scala:278)
    at kafka.server.KafkaServer.startup(KafkaServer.scala:168)
    at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:37)
    at kafka.Kafka$.main(Kafka.scala:67)
    at kafka.Kafka.main(Kafka.scala)
[2017-11-16 08:23:36,077] INFO shutting down (kafka.server.KafkaServer)
[2017-11-16 08:23:36,080] INFO shut down completed (kafka.server.KafkaServer)
[2017-11-16 08:23:36,081] FATAL Fatal error during KafkaServerStartable startup. Prepare to shutdown (kafka.server.KafkaServerStartable)
org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000
    at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:1223)
    at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:155)
    at org.I0Itec.zkclient.ZkClient.<init>(ZkClient.java:129)
    at kafka.utils.ZkUtils$.createZkClientAndConnection(ZkUtils.scala:89)
    at kafka.utils.ZkUtils$.apply(ZkUtils.scala:71)
    at kafka.server.KafkaServer.initZk(KafkaServer.scala:278)
    at kafka.server.KafkaServer.startup(KafkaServer.scala:168)
    at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:37)
    at kafka.Kafka$.main(Kafka.scala:67)
    at kafka.Kafka.main(Kafka.scala)
[2017-11-16 08:23:36,082] INFO shutting down (kafka.server.KafkaServer)

我没有更改任何代码或任何其他内容，这就是为什么我无法找出导致问题的原因。有解决这个问题的技巧吗？

Answer 1

终于解决了这个问题。这是由于 iptables 设置阻止了 icmp 数据包从 flannel 接口转发到 docker 接口，因此 docker 容器无法相互通信。通过添加 iptable 规则，一切对我来说都很好。

Kafka容器超时

Kafka container timeout

amazon-ec2

apache-kafka

apache-zookeeper

hyperledger-fabric