org.I0Itec.zkclient.exception.ZkException: Unable to connect to zoo1:2181,zoo2:2181,zoo3:2181

Stack Overflow | Sergio | 2 months ago
  1. 0

    Kafka cluster unavailable if a node in Zookeeper cluster dies

    Stack Overflow | 2 months ago | Sergio
    org.I0Itec.zkclient.exception.ZkException: Unable to connect to zoo1:2181,zoo2:2181,zoo3:2181
  2. 0

    GitHub comment 4392#247725699

    GitHub | 3 months ago | jdef
    java.net.UnknownHostException: zk-1.zk: unknown error
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    java.net.UnknownHostException: ("127.0.0.1"): Name or service not known
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    cloudera.org | 2 years ago
    java.net.UnknownHostException: hadoopmaster01.prod.ps
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    Endless recursive call when the ZK quorum spec is invalid

    GitHub | 6 years ago | tsuna
    java.net.UnknownHostException: tmpzookeeper

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Root Cause Analysis

  1. java.net.UnknownHostException

    zoo3: Name or service not known

    at java.net.Inet6AddressImpl.lookupAllHostAddr()
  2. Java RT
    InetAddress.getAllByName
    1. java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    2. java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
    3. java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
    4. java.net.InetAddress.getAllByName0(InetAddress.java:1276)
    5. java.net.InetAddress.getAllByName(InetAddress.java:1192)
    6. java.net.InetAddress.getAllByName(InetAddress.java:1126)
    6 frames
  3. Zookeeper
    ZooKeeper.<init>
    1. org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
    2. org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
    3. org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
    3 frames
  4. ZooKeeper Client
    ZkConnection.connect
    1. org.I0Itec.zkclient.ZkConnection.connect(ZkConnection.java:69)
    1 frame