IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Time series index settings
editTime series index settings
editBacking indices in a time series data stream (TSDS) support the following index settings.
-
index.mode
-
(Static, string) Mode for the index.
Valid values are
time_series
andnull
(no mode). Defaults tonull
.
-
index.time_series.start_time
-
(Static, string) Earliest
@timestamp
value (inclusive) accepted by the index. Only indices with anindex.mode
oftime_series
support this setting. For more information, refer to Time-bound indices.
-
index.time_series.end_time
-
(Dynamic, string) Latest
@timestamp
value (exclusive) accepted by the index. Only indices with anindex.mode
oftime_series
support this setting. For more information, refer to Time-bound indices.
-
index.look_ahead_time
-
(Static, time units)
Interval used to calculate the
index.time_series.end_time
for a TSDS’s write index. Defaults to2h
(2 hours). Accepts1m
(one minute) to7d
(seven days). Only indices with anindex.mode
oftime_series
support this setting. For more information, refer to Look-ahead time. Additionally this setting can not be less thantime_series.poll_interval
cluster setting.
Increasing the look_ahead_time
will also increase the amount of time Index lifecycle management
waits before being able to proceed with executing the actions that expect the
index to not receive any writes anymore. For more information, refer to Time-bound indices.
-
index.look_back_time
-
(Static, time units)
Interval used to calculate the
index.time_series.start_time
for a TSDS’s first backing index when a tsdb data stream is created. Defaults to2h
(2 hours). Accepts1m
(one minute) to7d
(seven days). Only indices with anindex.mode
oftime_series
support this setting. For more information, refer to Look-back time. -
index.routing_path
-
(Static, string or array of strings) Plain
keyword
fields used to route documents in a TSDS to index shards. Supports wildcards (*
). Only indices with anindex.mode
oftime_series
support this setting. Defaults to an empty list, except for data streams then defaults to the list of dimension fields with atime_series_dimension
value oftrue
defined in your component and index templates. For more information, refer to Dimension-based routing.
-
index.mapping.dimension_fields.limit
-
(Dynamic, integer)
Maximum number of time series dimensions for the
index. Defaults to
21
.