F:\zhang\jdk18\bin\java.exe "-javaagent:F:\zhang\IDEA\IntelliJ IDEA 2023.3.4\lib\idea_rt.jar=57121:F:\zhang\IDEA\IntelliJ IDEA 2023.3.4\bin" -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath F:\zhang\IDEA\IDEAprojects\Covid-2304\target\classes;C:\Users\user\.m2\repository\org\apache\hadoop\hadoop-common\3.2.2\hadoop-common-3.2.2.jar;C:\Users\user\.m2\repository\org\apache\hadoop\hadoop-annotations\3.2.2\hadoop-annotations-3.2.2.jar;C:\Users\user\.m2\repository\com\google\guava\guava\27.0-jre\guava-27.0-jre.jar;C:\Users\user\.m2\repository\com\google\guava\failureaccess\1.0\failureaccess-1.0.jar;C:\Users\user\.m2\repository\com\google\guava\listenablefuture\9999.0-empty-to-avoid-conflict-with-guava\listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar;C:\Users\user\.m2\repository\org\checkerframework\checker-qual\2.5.2\checker-qual-2.5.2.jar;C:\Users\user\.m2\repository\com\google\errorprone\error_prone_annotations\2.2.0\error_prone_annotations-2.2.0.jar;C:\Users\user\.m2\repository\com\google\j2objc\j2objc-annotations\1.1\j2objc-annotations-1.1.jar;C:\Users\user\.m2\repository\org\codehaus\mojo\animal-sniffer-annotations\1.17\animal-sniffer-annotations-1.17.jar;C:\Users\user\.m2\repository\commons-cli\commons-cli\1.2\commons-cli-1.2.jar;C:\Users\user\.m2\repository\org\apache\commons\commons-math3\3.1.1\commons-math3-3.1.1.jar;C:\Users\user\.m2\repository\org\apache\httpcomponents\httpclient\4.5.13\httpclient-4.5.13.jar;C:\Users\user\.m2\repository\org\apache\httpcomponents\httpcore\4.4.13\httpcore-4.4.13.jar;C:\Users\user\.m2\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;C:\Users\user\.m2\repository\commons-io\commons-io\2.5\commons-io-2.5.jar;C:\Users\user\.m2\repository\commons-net\commons-net\3.6\commons-net-3.6.jar;C:\Users\user\.m2\repository\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar;C:\Users\user\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.ser
Hadoop 3.2.2 Java Project Dependency or Configuration Issue
When working on a Hadoop 3.2.2 Java project using IntelliJ IDEA 2023.3.4 and Maven, it is essential to ensure that all dependencies are correctly specified in the pom.xml
file[^1]. The inclusion of ZooKeeper as part of your project's dependencies indicates its role in distributed coordination within the Hadoop ecosystem.
The following section outlines how to verify and resolve potential issues related to dependencies and configurations:
Verifying Dependencies
Ensure that the necessary libraries for interacting with both Hadoop and other services like MySQL (as indicated by the JDBC connection string modification) are included properly. For instance, the ZooKeeper dependency should be defined as follows:
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.6.2</version>
</dependency>
This ensures compatibility between components when running distributed applications under Hadoop environments.
Additionally, confirm whether additional required packages such as those supporting database interactions via JDBC have been added appropriately into the build path settings through Maven’s management system[^2]:
conn = DriverManager.getConnection("jdbc:mysql://hadoop10:3306/yangyulin?useSSL=false", "root", "0000");
Here, updating this line reflects changes made towards establishing connections securely without SSL encryption while authenticating against databases hosted locally at 'hadoop10'.
Checking Configurations Within IDE Settings
IntelliJ IDEA requires specific adjustments so projects can function seamlessly alongside external frameworks including Apache Hadoop:
- SDK Setup: Make sure JDK version matches what was used during compilation phases.
- Maven Integration Options: Enable automatic downloading sources/docs upon importing modules from POM files automatically whenever possible.
- Run/Debug Configurations: Specify main class paths along with any extra arguments needed depending on application logic requirements before execution begins.
By adhering strictly to these guidelines concerning setup procedures inside development tools combined with accurate specification lists found earlier regarding software versions being utilized throughout entire processes involved here today will help mitigate common pitfalls associated typically seen amongst beginners especially who may overlook minor yet critical details leading ultimately toward successful outcomes overall!
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