[node-2] failed to send join request to master [{node-1}{WbcP0pC_T32jWpYvu5is1A}{2_LCVHx1QEaBZYZ7XQEkMg}{10.10.11.200}{10.10.11.200:9300}], reason [RemoteTransportException[[node-1][10.10.11.200:9300][internal:discovery/zen/join]]; nested: IllegalArgumentException[can't add node {node-2}{WbcP0pC_T32jWpYvu5is1A}{p-HCgFLvSFaTynjKSeqXyA}{10.10.11.200}{10.10.11.200:9301}, found existing node {node-1}{WbcP0pC_T32jWpYvu5is1A}{2_LCVHx1QEaBZYZ7XQEkMg}{10.10.11.200}{10.10.11.200:9300} with the same id but is a different node instance]; ]
The reason is: because the copied elasticsearch folder contains the node data of instance 1 in the data file, you need to clear the file under the data file of instance 2.
Delete all the files in the ES cluster data database folder
https://blog.csdn.net/gamer_ gyt/article/details/59077189
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