Question

我正在尝试创建Vertica UDx

通过

生成JAR

javac -classpath /opt/vertica/bin/VerticaSDK.jar BuildInfo.java TestFactory.java Test.java -d output/ 
jar -cvf TestLib.jar BuildInfo.class output/*.class

通过

加载到数据库中

CREATE LIBRARY TestFunctions AS '/home/dbadmin/test/TestLib.jar' LANGUAGE 'JAVA';

获取错误

SQL Error [2175] [55000]: [Vertica][VJDBC](2175) ROLLBACK: An error occurred when loading library file on node v_test_node0002, message: Failure in UDx RPC call InvokeCheckLibrary(): Error in User Defined Object [], error code: 0 Error happened in loading jar file, the user library might be built with a new version of JDK

[Vertica][VJDBC](2175) ROLLBACK: An error occurred when loading library file on node v_test_node0002, message: Failure in UDx RPC call InvokeCheckLibrary(): Error in User Defined Object [], error code: 0 Error happened in loading jar file, the user library might be built with a new version of JDK

com.vertica.util.ServerException: [Vertica][VJDBC](2175) ROLLBACK: An error occurred when loading library file on node vtest_node0002, message: Failure in UDx RPC call InvokeCheckLibrary(): Error in User Defined Object [], error code: 0 Error happened in loading jar file, the user library might be built with a new version of JDK

本地＆amp;远程服务器的JDK版本是相同的1.8.0_131

Vertica版本8.0.1

JAR tree
├── com
│   └── vertica
│       ├── JavaLibs
│       │   ├── Test.class
│       │   └── TestFactory.class
│       └── sdk
│           └── BuildInfo.class
VERTICA_BUILD_ID_Brand_Version    = "v8.0.1-5";

Answer 1

通过在服务器上编译来解决此问题

使这个答案更具信息性：

$ ls

TestFactory.java  Test.java

# compile all java files with VerticaSDK & BuildInfo
$ javac -classpath /opt/vertica/bin/VerticaSDK.jar /opt/vertica/sdk/BuildInfo.java *.java -d .
# show compiled files
$ find . -type f

./com/vertica/sdk/BuildInfo.class
./com/vertica/JavaLibs/TestFactory.class
./com/vertica/JavaLibs/Test.class
./TestFactory.java
./Test.java

# combine compiled classes into single jar
$ jar -cvf TestLib.jar com/vertica/sdk/BuildInfo.class com/vertica/JavaLibs/*.class

added manifest
adding: com/vertica/sdk/BuildInfo.class(in = 1315) (out= 749)(deflated 43%)
adding: com/vertica/JavaLibs/Test.class(in = 1238) (out= 717)(deflated 42%)
adding: com/vertica/JavaLibs/TestFactory.class(in = 916) (out= 435)(deflated 52%)

$ ls

com  TestFactory.java  Test.java  TestLib.jar

load＆amp;使用功能

CREATE LIBRARY TestFunctions AS '/path/TestLib.jar' LANGUAGE 'JAVA';

CREATE ANALYTIC FUNCTION a_test AS LANGUAGE 'java' NAME 'com.vertica.JavaLibs.TestFactory' LIBRARY TestFunctions;

SELECT a_test(col, args) OVER (ORDER BY col2) FROM ...

尝试在java中创建vertica udx时出错

1 个答案: