hit-lacus edited a comment on issue #1166: Prepare DebugTomcat and Integration Test in Hadoop3 Env URL: https://github.com/apache/kylin/pull/1166#issuecomment-603229123 ### Check Ambari Web UI Wait about two minutes, you can check sandbox-hdp.hortonworks.com:8080 in your laptap. But wait here, you cannot login via `admin`/`admin`. You have to reset the password too by the following command. After complete, re-login Ambari Web UI. ```sh [root@sandbox-hdp /] ambari-admin-password-reset ``` If you cannot visit that page, please login to container and execute `ambari-server status` to find why ambari-server failed to start and listen on port 8080. ### Configure Hadoop - Turn on **Maintenance Mode** and stop those service which Kylin do not really depend on. - Restart those service which Kylin really depend on. - Trun off **Ranger** if you are not familiar with it. - Hive/Yarn/Kafka/HDFS depend **Ranger** in there auth part by default, please remove those configuration entry. Here is my ambari web UI (After fix a lot of service failure and set **Maintenance Mode**). <img width="503" alt="image" src="https://user-images.githubusercontent.com/14030549/77430100-9b792d80-6e15-11ea-93a6-f9bac2b022d4.png">  <img width="713" alt="image" src="https://user-images.githubusercontent.com/14030549/77430306-eb57f480-6e15-11ea-9ee7-4387714c1ed1.png">
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