@zhuodongLi, Did the responses help resolve your query? If it did, kindly mark the relevant reply as the solution, as it will aid others in locating the answer more easily in the future.  ... View more

@Choolake, Did the response help resolve your query? If it did, kindly mark the relevant reply as the solution, as it will aid others in locating the answer more easily in the future.  ... View more

@thapas, Welcome to the Cloudera Community. As this is an older post, you would have a better chance of receiving a resolution by starting a new thread. This will also be an opportunity to provide details specific to your environment that could aid others in assisting you with a more accurate answer to your question. You can link this thread as a reference in your new post. ... View more

@Krish98, Welcome to our community! To help you get the best possible answer, I have tagged in our NiFi experts @SAMSAL @MattWho who may be able to assist you further. Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question. ... View more

@Ramkychowdary, Welcome to our community! To help you get the best possible answer, I have tagged in our HDFS experts @SVB @rki_  who may be able to assist you further. Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question. ... View more

@Sumukha, Welcome to our community! To help you get the best possible answer, I have tagged our NiFi experts @SAMSAL @vaishaakb @MattWho who may be able to assist you further. Please feel free to provide any additional information or details about your query. We hope that you will find a satisfactory solution to your question. ... View more

```java private static String JDBC_DRIVER = "com.cloudera.impala.jdbc.Driver"; private static String CONNECTION_URL ="jdbc:impala://127.0.0.1:21050/;LogLevel=5;UseNativeQuery=1"; ``` Found in logs  ```log Adding THandleIdentifier(guid:52 BF 8E A3 7D E8 47 B6 00 00 00 00 3B FB 5C 30, secret:29 1B CE 80 42 7C 45 91 93 B8 4E 77 56 C3 0E D6) to the heart beat operation handle list. ``` the guid is something about query id in profile  Query (id=b647e87da38ebf52:305cfb3b00000000)   ... View more