Question

我下载了Apache Drill v1.8，编辑了conf/drill-override.conf以进行以下更改：

drill.exec: {
  cluster-id: "drillbits1",
  zk.connect: "10.178.23.140:2181,10.178.23.140:2182,10.178.23.140:2183,10.178.23.140:2184"
}

.. zookeeper集群实际上是由同一个机器上启动的4个Zookeeper实例组成的，我试图开始钻取。（即我只使用一台机器用于Apache Drill和Zookeeper的集群，机器的IP 10.178.23.140 ）

所以我一直收到这个错误：

Exception in thread "main" org.apache.drill.exec.exception.DrillbitStartupException: Failure during initial startup of Drillbit.
    at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:295)
    at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:271)
    at org.apache.drill.exec.server.Drillbit.main(Drillbit.java:267)
Caused by: org.apache.drill.exec.exception.DrillbitStartupException: Drillbit is disallowed to bind to loopback address in distributed mode.
    at org.apache.drill.exec.service.ServiceEngine.checkLoopbackAddress(ServiceEngine.java:186)
    at org.apache.drill.exec.service.ServiceEngine.start(ServiceEngine.java:146)
    at org.apache.drill.exec.server.Drillbit.run(Drillbit.java:119)
    at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:291)
    ... 2 more

为什么drillbit会抱怨绑定到环回地址？！

我没有为钻头配置一个IP来绑定！
既然我在我的机器上启动了钻头进程，我的机器会尝试绑定哪些其他IP？！

Answer 1

问题是我的 / etc / hosts 文件有此条目

127.0.1.1   mgelbana-machine

这使我的主机名可解析为环回地址。要解决此问题，您可以执行以下任一操作

删除此行解决了我的问题。
将我的主机名解析为非环回IP地址。

Source

private void checkLoopbackAddress(String address) throws DrillbitStartupException, UnknownHostException {
  if (isDistributedMode && InetAddress.getByName(address).isLoopbackAddress()) {
    throw new DrillbitStartupException("Drillbit is disallowed to bind to loopback address in distributed mode.");
  }
}

Drill拒绝在绑定到环回地址时启动的原因是differentiate between Drill nodes registered in Zookeeper.

如何在分布式模式下本地启动drillbit？

1 个答案: