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[DOCS] Add random default datafeed query delay 

Original commit: elastic/x-pack-elasticsearch@d886f09192
This commit is contained in:
lcawley 2017-09-19 08:47:23 -07:00
parent ea66433899
commit af2b2ca542
1 changed files with 3 additions and 1 deletions
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4
docs/en/rest-api/ml/datafeedresource.asciidoc
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@ -41,7 +41,9 @@ A {dfeed} resource has the following properties:
`query_delay`::
(time units) The number of seconds behind real time that data is queried. For
example, if data from 10:04 a.m. might not be searchable in {es} until
10:06 a.m., set this property to 120 seconds. The default value is `60s`.
10:06 a.m., set this property to 120 seconds. The default value is randomly
selected between `60s` and `120s`. This randomness improves the query
performance when there are multiple jobs running on the same node.
`script_fields`::
(object) Specifies scripts that evaluate custom expressions and returns