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es安装插件后报Cannot replace existing handler for [/_isql/_explain]错误 #62

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@suixindong

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@suixindong

es7.9.2 安装插件
./bin/elasticsearch-plugin install https://github.com/iamazy/elasticsearch-sql/releases/download/7.9.2/elasticsearch-sql-plugin-v7.9.2.zip
再 plugins目录会生成一个isql文件夹,但是启动时如下报错:
[2021-11-26T14:35:11,490][ERROR][o.e.b.Bootstrap ] [elasticsearch-230-t] Exception
java.lang.IllegalArgumentException: Cannot replace existing handler for [/_isql/_explain] for method: POST
at org.elasticsearch.rest.MethodHandlers.addMethods(MethodHandlers.java:52) ~[elasticsearch-7.9.2.jar:7.9.2]

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