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How to properly change uid for HDP / ambari-created user?

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How to properly change uid for HDP / ambari-created user?

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Have a node that was added to HDP3.1 cluster via ambari and finding that the yarn user was assigned a uid that I need specifically for another user that we need existing across multiple cluster nodes (all having the same uid). After checking the other nodes in the cluster as well as a Hortonworks post, I see that the yarn user uids are randomly assigned on a per node basis. Is there any safe way to change the uid of the (I assume ambari-assigned) uid of the yarn user (preferably via ambari)?

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