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原因为:es 的设置默认是 85% 和 90 %,95% 当为85%时:Elasticsearch不会将碎片分配给磁盘使用率超过85%的节点( cluster.routing.allocation.disk.watermark.low) 当为90%时:Elasticsearch尝试重新分配给磁盘低于使用率90%的节点(cluster.routing.allocation.disk.watermark.high) 当为85%时:Elasticsearch执行只读模块(cluster.routing.allocation.disk.watermark.flood_stage) 1、扩大磁盘或者删除部分历史索引 2、重置改只读索引快 某一个索引重置只读模块PUT /twitter/_settings { "index.blocks.read_only_allow_delete": null }所有索引重置只读模块 PUT /_all/_settings { "index.blocks.read_only_allow_delete": null } PUT /_cluster/settings { "persistent" : { "cluster.blocks.read_only" : false } }修改默认设置 可以修改为具体的磁盘空间值,也可以修改为百分之多少临时修改PUT _cluster/settings { "transient": { "cluster.routing.allocation.disk.watermark.low": "100gb", "cluster.routing.allocation.disk.watermark.high": "50gb", "cluster.routing.allocation.disk.watermark.flood_stage": "10gb", "cluster.info.update.interval": "1m" } }永久修改PUT _cluster/settings { "persistent": { "cluster.routing.allocation.disk.watermark.low": "100gb", "cluster.routing.allocation.disk.watermark.high": "50gb", "cluster.routing.allocation.disk.watermark.flood_stage": "10gb", "cluster.info.update.interval": "1m" } }转载自:https://www.elastic.co/guide/en/elasticsearch/reference/6.8/disk-allocator.html |
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