一、前言：
Graylog 满了，没有自动清理 挤爆硬盘空间，手动清理流程：
二、问题描述：
Elasticsearch nodes disk usage above high watermark (triggered a few seconds ago)mree are ast search modes i the use wtm a mos mo re disk ther dsk s saoe me e waemak f ths esn asicsearct l aemot toeat sars aay tote ede oes. re ateced moesae X.X.X.X Check https://www.elastic.colguide/en/elasticsearch/referencemaster/disk-allocator.html for more details
三、清理前：
