Mariia created HADOOP-17533:
--------------------------------
Summary: Server IPC version 9 cannot communicate with client
version 4
Key: HADOOP-17533
URL: https://issues.apache.org/jira/browse/HADOOP-17533
Project: Hadoop Common
Issue Type: Bug
Reporter: Mariia
`I want to connect to hdfs using java jast like this
String url = "hdfs://c7301.ambari.apache.org:8020/file.txt";
FileSystem fs = null;
InputStream in = null;
try \{
Configuration conf = new Configuration();
fs = FileSystem.get(URI.create(url), conf, "admin");
in = fs.open(new Path(url));
IOUtils.copyBytes(in, System.out, 4096, false);
} catch (Exception e) \{
e.printStackTrace();
} finally \{
IOUtils.closeStream(fs);
}
Error that i got
[2021-02-17 20:02:06,115] ERROR PriviledgedActionException as:admin
cause:org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot
communicate with client version 4
(org.apache.hadoop.security.UserGroupInformation:1124)
org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate
with client version 4
at org.apache.hadoop.ipc.Client.call(Client.java:1070)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at com.sun.proxy.$Proxy4.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
at
org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)
at
org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
at
org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)
at org.apache.hadoop.fs.FileSystem$1.run(FileSystem.java:117)
at org.apache.hadoop.fs.FileSystem$1.run(FileSystem.java:115)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:115)
at Main.main(Main.java:38)
{{ I tried different solutions to the problem, but nothing helped. }}
Its my pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>producer</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>0.10.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-hdfs</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-common</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-mapreduce-client-common</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-mapreduce-client-core</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>Main</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
{{}}
And its version of hdfs
Hadoop 3.1.1.3.1.4.0-315 Source code repository
g...@github.com:hortonworks/hadoop.git -r
58d0fd3d8ce58b10149da3c717c45e5e57a60d14 Compiled by jenkins on
2019-08-23T05:15Z Compiled with protoc 2.5.0 From source with checksum
fcbd146ffa6d48fef0ed81332f9d6f0 This command was run using
/usr/ddp/3.1.4.0-315/hadoop/hadoop-common-3.1.1.3.1.4.0-315.jar
if someone knew a similar problem, please help
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