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Posted to dev@hugegraph.apache.org by GitBox <gi...@apache.org> on 2022/07/07 07:09:24 UTC
[GitHub] [incubator-hugegraph] waynecookie opened a new issue, #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
waynecookie opened a new issue, #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922
### Problem Type (问题类型)
_No response_
### Before submit
- [X] 我已经确认现有的 [Issues](https://github.com/hugegraph/hugegraph/issues) 与 [FAQ](https://hugegraph.github.io/hugegraph-doc/guides/faq.html) 中没有相同 / 重复问题
### Environment (环境信息)
- Server Version: v0.12.x
- Backend: RocksDB x nodes, HDD or SSD
- OS: xx CPUs, xx G RAM, Centos 7.x
- Data Size: xx vertices, xx edges <!-- (like 1000W 点, 9000W 边) -->
### Your Question (问题描述)
请教一下
从hdfs（设置了ha）中导入数据，fs.defaultFS 为 hdfs://abc,
当我执行导入时提示
```
Failed to load, cause: java.net.UnknownHostException: abc
```
1、请问这是什么原因?
2、当我改为hdfs://ip:port模式时可以了，那一定需要这样的模式吗？发生故障时，ip 可能会变为另一个stanby状态的ip
### Vertex/Edge example (问题点 / 边数据举例)
_No response_
### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构)
_No response_
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[GitHub] [incubator-hugegraph] waynecookie commented on issue #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
Posted by GitBox <gi...@apache.org>.
waynecookie commented on issue #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922#issuecomment-1177235839
> UnknownHostException是指无法解析主机名，可在命令行手动检查下主机名是否可解析。如果你例子中的abc指的是机器名，比如“host1:8020”，请确保程序运行的机器可**ping**通HDFS的机器`ping host1`
不是机器名，是可以随意的；
```
<property>
<name>fs.defaultFS</name>
<value>hdfs://abc:8020</value>
</property>
```
如果这么设置的话，就可以是机器名、域名、ip等
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[GitHub] [incubator-hugegraph] javeme commented on issue #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
Posted by GitBox <gi...@apache.org>.
javeme commented on issue #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922#issuecomment-1177200461
可以是域名或机器名，但必须可解析，是否添加"abc"到hosts配置文件中了？
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[GitHub] [incubator-hugegraph] javeme commented on issue #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
Posted by GitBox <gi...@apache.org>.
javeme commented on issue #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922#issuecomment-1177231931
UnknownHostException是指无法解析主机名，可在命令行手动检查下主机名是否可解析。如果你例子中的abc指的是机器名，比如“host1:8020”，请确保程序运行的机器可**ping**通HDFS的机器`ping host1`
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[GitHub] [incubator-hugegraph] waynecookie commented on issue #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
Posted by GitBox <gi...@apache.org>.
waynecookie commented on issue #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922#issuecomment-1177205599
> 可以是域名或机器名，但必须可解析，是否添加"abc"到hosts配置文件中了？
你好像没有理解我的意思，或者我没有懂你的意思
这个abc是不固定的
设置如下：
```
<property>
<name>fs.defaultFS</name>
<value>hdfs://abc</value>
</property>
```
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[GitHub] [incubator-hugegraph] waynecookie commented on issue #1922: [Question] 当我使用hdfs导入时提示 Failed to load, cause: java.net.UnknownHostException: abc
Posted by GitBox <gi...@apache.org>.
waynecookie commented on issue #1922:
URL: https://github.com/apache/incubator-hugegraph/issues/1922#issuecomment-1177200754
您好，已收到您的邮件
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