为什么在嵌入式模式下尝试启动 apache Drill 时出现错误？

Question

win10，64 位，本地没有 hadoop 变量（或两者都尝试）。在测试 api 时需要钻取来访问数据库。 JAVA_HOME 设置正确，因为 PATH 还包含 jdc bin 文件夹的目录。当我尝试启动 Drill-embedded.bat 时，我收到以下错误消息（不是完整的原因堆栈不允许粘贴更大的代码）：

Error: Failure in starting embedded Drillbit: UNSUPPORTED_OPERATION ERROR: Failure while attempting to load instance of the class of type org.apache.drill.exec.store.StoragePluginRegistry requested at path drill.exec.storage.registry.


[Error Id: 3a07daa6-a6bc-4a8e-996a-67bc3aa3a9f4 ] (state=,code=0)
java.sql.SQLException: Failure in starting embedded Drillbit: UNSUPPORTED_OPERATION ERROR: Failure while attempting to load instance of the class of type org.apache.drill.exec.store.StoragePluginRegistry requested at path drill.exec.storage.registry.


[Error Id: 3a07daa6-a6bc-4a8e-996a-67bc3aa3a9f4 ]
        at org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:137)
        at org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:67)
        at org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:67)
        at org.apache.calcite.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:138)
        at org.apache.drill.jdbc.Driver.connect(Driver.java:75)
        at sqlline.DatabaseConnection.connect(DatabaseConnection.java:135)
        at sqlline.DatabaseConnection.getConnection(DatabaseConnection.java:192)
        at sqlline.Commands.connect(Commands.java:1364)
        at sqlline.Commands.connect(Commands.java:1244)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at sqlline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:38)
        at sqlline.SqlLine.dispatch(SqlLine.java:730)
        at sqlline.SqlLine.initArgs(SqlLine.java:410)
        at sqlline.SqlLine.begin(SqlLine.java:515)
        at sqlline.SqlLine.start(SqlLine.java:267)
        at sqlline.SqlLine.main(SqlLine.java:206)
Caused by: org.apache.drill.common.exceptions.UserException: UNSUPPORTED_OPERATION ERROR: Failure while attempting to load instance of the class of type org.apache.drill.exec.store.StoragePluginRegistry requested at path drill.exec.storage.registry.
   

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Answer 1

这是一个奇怪的错误。你用的是什么版本的钻？

如果你使用这个命令会有什么不同吗：

sqlline.bat -u "jdbc:drill:zk=local"

看起来正在发生的事情是存储插件注册表以某种方式损坏。如果存储插件文件被手动编辑，或者在 Drill 之外进行了其他更改，这可能会发生。