Help Center/ MapReduce Service/ Component Operation Guide (LTS)/ Using Ranger/ Ranger Troubleshooting/ Ranger Fails to Be Started During Cluster Installation

Updated on 2024-10-09 GMT+08:00

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Ranger Fails to Be Started During Cluster Installation

Question

Ranger fails to start during cluster installation and the Manager process task list shows database errors like "ERROR: cannot drop sequence X_POLICY_REF_ACCESS_TYPE_SEQ". Measures should be taken to fix the issue and complete the Ranger installation.

Answer

This issue arises when there are two instances of RangerAdmin installed. If the installation fails, manually restart one instance of RangerAdmin and then restart the other instance.

Parent topic: Ranger Troubleshooting

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