在Kettle上加载转换时发现缺少插件

Question

每当我从命令行而不是在Spoon UI中运行解压缩时，都会收到此错误。

Missing plugins found while loading a transformation

Step : MongoDbInput

        at org.pentaho.di.job.entries.trans.JobEntryTrans.getTransMeta(JobEntryTrans.java:1200)
        at org.pentaho.di.job.entries.trans.JobEntryTrans.execute(JobEntryTrans.java:643)
        at org.pentaho.di.job.Job.execute(Job.java:714)
        at org.pentaho.di.job.Job.execute(Job.java:856)
        ... 4 more
Caused by: org.pentaho.di.core.exception.KettleMissingPluginsException:
Missing plugins found while loading a transformation

我的maven依赖项如下所示。

    <dependency>
      <groupId>rhino</groupId>
      <artifactId>js</artifactId>
    </dependency>
    <dependency>
      <groupId>pentaho-kettle</groupId>
      <artifactId>kettle-core</artifactId>
    </dependency>
    <dependency>
      <groupId>pentaho-kettle</groupId>
      <artifactId>kettle-engine</artifactId>
    </dependency>
    <dependency>
      <groupId>pentaho-library</groupId>
      <artifactId>libbase</artifactId>
      <version>5.1.0.0-752</version>
    </dependency>
    <dependency>
      <groupId>pentaho</groupId>
      <artifactId>pentaho-big-data-plugin</artifactId>
      <version>5.1.0.0-751</version>
    </dependency>
    <dependency>
      <groupId>pentaho</groupId>
      <artifactId>pentaho-mongodb-plugin</artifactId>
      <version>5.1.0.0-751</version>
    </dependency>
    <dependency>
      <groupId>org.mongodb</groupId>
      <artifactId>mongo-java-driver</artifactId>
      <version>2.11.1</version>
    </dependency>
    <dependency>
      <groupId>pentaho</groupId>
      <artifactId>metastore</artifactId>
      <version>5.1.0.0-751</version>
    </dependency>
    <dependency>
      <groupId>pentaho-library</groupId>
      <artifactId>libformula</artifactId>
    </dependency>
    <dependency>
      <groupId>simple-jndi</groupId>
      <artifactId>simple-jndi</artifactId>
    </dependency>
    <dependency>
      <groupId>org.drools</groupId>
      <artifactId>drools-compiler</artifactId>
    </dependency>
    <dependency>
      <groupId>org.drools</groupId>
      <artifactId>drools-core</artifactId>
    </dependency>
    <dependency>
      <groupId>org.postgresql</groupId>
      <artifactId>postgresql</artifactId>
    </dependency>
  </dependencies>

我错过了什么吗？

Answer 1

在初始化kettleEnviroment之前

KettleEnviroment.init();

您应该像这样添加以下代码

StepPluginType.getInstance().getPluginFolders().add(new PluginFolder("your plugins path", false, true));

Answer 2

将MongoDB插件作为依赖项只适用于编译。当PDI运行时，它在当前目录下查找plugins/文件夹，并从那里加载所有插件。可以通过设置KETTLE_PLUGIN_BASE_FOLDERS系统特性来替代该位置。无论采用哪种方法，您都需要一个插件/文件夹，并将MongoDB插件包(而不是JAR)解压缩到plugin /中。这应该会在plugins/下放置一个名为pentaho-mongodb-plugin的文件夹，如果PDI指向这个plugins/文件夹，它应该会在运行时成功加载和使用该插件。

Answer 3

您必须从Kettle安装目录运行Kitchen。

如下所示：http://wiki.pentaho.com/display/EAI/Kitchen+User+Documentation

在运行以下示例之前，请确保您位于Kettle目录中。如果将这些脚本放入批处理文件或shell脚本中，只需更改安装目录

的目录