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hive cannot initialize class org.apache.hadoop.hive.druid.DruidStorageHandler

hive cannot initialize class org.apache.hadoop.hive.druid.DruidStorageHandler

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I am using HDP 3.1. While query Druid datasource from Hive LLAP, it always says "Cannot recover from this error:java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.hive.druid.DruidStorageHandler"

I double checked hive-druid-handler-3.1.0.3.1.0.0-78.jar in LLAP server and each daemon lib folder. And i also tries add jar explicitly.

Please help me to fix it. Thanks in advance!

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