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Document xpack.security.dls.bitset.cache settings (#44400) 

Two new settings were introduced in #43669 to control the
behaviour of the Document Level Security BitSet cache.

This change adds documentation for these 2 settings.

Backport of: #44100
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Tim Vernum 2019-07-16 16:22:25 +10:00 committed by GitHub
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docs/reference/settings/security-settings.asciidoc
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@ -128,6 +128,18 @@ level security].
Set to `false` to prevent document and field level security
from being configured. Defaults to `true`.
`xpack.security.dls.bitset.cache.ttl`::
The time-to-live for cached `BitSet` entries for document level security.
Document level security queries may depend on Lucene BitSet objects, and these are
automatically cached to improve performance. Defaults to expire entries that are
unused for `168h` (7 days).
`xpack.security.dls.bitset.cache.size`::
The maximum memory usage of cached `BitSet` entries for document level security.
Document level security queries may depend on Lucene BitSet objects, and these are
automatically cached to improve performance. Defaults to `50mb`, after which
least-recently-used entries will be evicted.
[float]
[[token-service-settings]]
==== Token service settings