在EK分词器安装好后，启动elasticsearch报错
Could not load plugin descriptor for plugin directory [elasticsearch-analysis-ik-6.5.3]
Could not load plugin descriptor for plugin directory [elasticsearch-analysis-ik-6.5.3] . . . . Caused by: java.lang.IllegalStateException: Could not load plugin descriptor for plugin directory [elasticsearch-analysis-ik-6.5.3] . . . Caused by: java.nio.file.NoSuchFileException: /usr/local/elasticsearch-6.5.3/plugins/elasticsearch-analysis-ik-6.5.3/plugin-descriptor.properties
这里提示找不到plugin-descriptor.properties，这是因为下载的压缩包内容不全，如下图所示，下载圈住的，不要下载source code
之后解压
yum -y install zip unzip cd /usr/local/elasticsearch-6.5.3/plugins unzip elasticsearch-analysis-ik-6.5.3.zip -d ./analysis-ik #修改文件用户 chown -R elastic:elastic ./analysis-ik
