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When using LVM or software raid on Linux the kernel, or specific distribution rules, may use higher ergonomic defaults for the readahead of resulting block device(s). This can adversely affect search performance due to high page cache thrashing, in search heavy scenarios when mmap is involved. Add a clarification section in the docs raising awareness about this value and preferring the lower default. |
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recipes | ||
disk-usage.asciidoc | ||
fix-common-cluster-issues.asciidoc | ||
general.asciidoc | ||
indexing-speed.asciidoc | ||
recipes.asciidoc | ||
search-speed.asciidoc | ||
size-your-shards.asciidoc | ||
use-elasticsearch-for-time-series-data.asciidoc |