mirror of
https://github.com/elastic/elasticsearch.git
synced 2025-04-25 15:47:23 -04:00
Initially the index.look_head_time was both used to define the index.time_series.start_time and index.time_series.end_time. The former is now controlled by index.look_back_time and the maximum value of 7 days for index.look_ahead_time is too generous. As it also delays data being indexed to new index after rollover by up to 7 days. This PR changes the index.look_ahead_time setting's maximum allowed value from 7 days to 2 hours, which is equal to the index.look_ahead_time setting's default. A look ahead time of 2 hours is high enough to accept data that is ahead of the current time, but avoids configuring the index.look_ahead_time setting to a too high value that causes rolled over indices to not receive writes for a very long period. This is a breaking change, but configuring the index.look_ahead_time setting to a higher value than 2 hours will not fail. Instead 2 hours will be used a look ahead time. |
||
---|---|---|
.. | ||
lifecycle | ||
change-mappings-and-settings.asciidoc | ||
data-stream-apis.asciidoc | ||
data-streams.asciidoc | ||
downsampling-ilm.asciidoc | ||
downsampling-manual.asciidoc | ||
downsampling.asciidoc | ||
modify-data-streams-api.asciidoc | ||
promote-data-stream-api.asciidoc | ||
set-up-a-data-stream.asciidoc | ||
set-up-tsds.asciidoc | ||
tsds-index-settings.asciidoc | ||
tsds-reindex.asciidoc | ||
tsds.asciidoc | ||
use-a-data-stream.asciidoc |