搭了一个hadoop3.3.6的hadoop完全分布式测试集群，在测试阶段发现namenode和yarn都能正常启动，它们的web页面访问也正常，但是当我运行bin目录下的命令时运行线程会把配置文件里面namenode的服务组ID当做一个DNS的域名去解析，这一点该如何调整呢？
[root@hdp4 wy]# hadoop fs -get /
2024-06-16 17:49:31,873 WARN fs.FileSystem: Failed to initialize filesystem hdfs://hdp: java.lang.IllegalArgumentException: java.net.UnknownHostException: hdp
-get: java.net.UnknownHostException: hdp
Usage: hadoop fs [generic options]
[-appendToFile [-n] <localsrc> ... <dst>]
[-cat [-ignoreCrc] <src> ...]
[-checksum [-v] <src> ...]
[-chgrp [-R] GROUP PATH...]
[-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...]
[-chown [-R] [OWNER][:[GROUP]] PATH...]
[-concat <target path> <src path> <src path> ...]
[-copyFromLocal [-f] [-p] [-l] [-d] [-t <thread count>] [-q <thread pool queue size>] <localsrc> ... <dst>]
[-copyToLocal [-f] [-p] [-crc] [-ignoreCrc] [-t <thread count>] [-q <thread pool queue size>] <src> ... <localdst>]
[-count [-q] [-h] [-v] [-t [<storage type>]] [-u] [-x] [-e] [-s] <path> ...]
[-cp [-f] [-p | -p[topax]] [-d] [-t <thread count>] [-q <thread pool queue size>] <src> ... <dst>]
[-createSnapshot <snapshotDir> [<snapshotName>]]
[-deleteSnapshot <snapshotDir> <snapshotName>]
[-df [-h] [<path> ...]]
[-du [-s] [-h] [-v] [-x] <path> ...]
[-expunge [-immediate] [-fs <path>]]
[-find <path> ... <expression> ...]
[-get [-f] [-p] [-crc] [-ignoreCrc] [-t <thread count>] [-q <thread pool queue size>] <src> ... <localdst>]
[-getfacl [-R] <path>]
[-getfattr [-R] {-n name | -d} [-e en] <path>]
[-getmerge [-nl] [-skip-empty-file] <src> <localdst>]
[-head <file>]
[-help [cmd ...]]
[-ls [-C] [-d] [-h] [-q] [-R] [-t] [-S] [-r] [-u] [-e] [<path> ...]]
[-mkdir [-p] <path> ...]
[-moveFromLocal [-f] [-p] [-l] [-d] <localsrc> ... <dst>]
[-moveToLocal <src> <localdst>]
[-mv <src> ... <dst>]
[-put [-f] [-p] [-l] [-d] [-t <thread count>] [-q <thread pool queue size>] <localsrc> ... <dst>]
[-renameSnapshot <snapshotDir> <oldName> <newName>]
[-rm [-f] [-r|-R] [-skipTrash] [-safely] <src> ...]
[-rmdir [--ignore-fail-on-non-empty] <dir> ...]
[-setfacl [-R] [{-b|-k} {-m|-x <acl_spec>} <path>]|[--set <acl_spec> <path>]]
[-setfattr {-n name [-v value] | -x name} <path>]
[-setrep [-R] [-w] <rep> <path> ...]
[-stat [format] <path> ...]
[-tail [-f] [-s <sleep interval>] <file>]
[-test -[defswrz] <path>]
[-text [-ignoreCrc] <src> ...]
[-touch [-a] [-m] [-t TIMESTAMP (yyyyMMdd:HHmmss) ] [-c] <path> ...]
[-touchz <path> ...]
[-truncate [-w] <length> <path> ...]
[-usage [cmd ...]]
Generic options supported are:
-conf <configuration file> specify an application configuration file
-D <property=value> define a value for a given property
-fs <file:///|hdfs://namenode:port> specify default filesystem URL to use, overrides 'fs.defaultFS' property from configurations.
-jt <local|resourcemanager:port> specify a ResourceManager
-files <file1,...> specify a comma-separated list of files to be copied to the map reduce cluster
-libjars <jar1,...> specify a comma-separated list of jar files to be included in the classpath
-archives <archive1,...> specify a comma-separated list of archives to be unarchived on the compute machines
The general command line syntax is:
command [genericOptions] [commandOptions]
Usage: hadoop fs [generic options] -get [-f] [-p] [-crc] [-ignoreCrc] [-t <thread count>] [-q <thread pool queue size>] <src> ... <localdst>
问题就出现在2024-06-16 17:49:31,873 WARN fs.FileSystem: Failed to initialize filesystem hdfs://hdp: java.lang.IllegalArgumentException: java.net.UnknownHostException: hdp -get: java.net.UnknownHostException: hdp这一块。
hdp是我在配置文件中高可用的namenode服务组ID，在我的core-site.xml中存在如下配置
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://hdp</value>
</property>
<!-- hadoop的运行时的临时数据的本地存放目录 -->
<property>
<name>hadoop.tmp.dir</name>
<value>/opt/hadoop-3.3.6/hdpData/tmp</value>
</property>
<property>
<name>hadoop.http.staticuser.user</name>
<value>root</value>
</property>
<!-- ZooKeeper集群的地址和端口。注意，数量一定是奇数，且不少于三个节点-->
<property>
<name>ha.zookeeper.quorum</name>
<value>hdp4:2181,hdp5:2181,hdp6:2181</value>
</property>
<!--修改core-site.xml中的ipc参数,防止出现连接journalnode服务ConnectException,默认10s-->
<property>
<name>ipc.client.connect.max.retries</name>
<value>100</value>
</property>
<property>
<name>ipc.client.connect.retry.interval</name>
<value>10000</value>
</property>
</configuration>
在hdfs-site.xml中也存在如下配置
<property>
<name>dfs.nameservices</name>
<value>hdp</value>
</property>
我尝试了在环境变量中明确指定hadoop配置文件路径但是没有影响这个问题的发生。
