We’re happy to announce the release of Siren Federate version 36.0 for Elasticsearch 7.17.22 & Elasticsearch 8.14.1. This release includes the following features, improvements and bug fixes:
Features
- Introduced a new node attribute
federate.enable
which allows you to exclude nodes from search and computation when it is set tofalse
. - Enhanced Elasticsearch aggregations to work with Federate joins in static and adaptive planner requests.
- Added multi-search request capabilities for Adaptive Query Planner (AQP).
Improvements
- Upgraded to latest Elasticsearch 8.14.1 & 7.17.22.
- Improved
function_score
to acceptjoin
in thefilters
scope. - Added a push down optimization to queries inside aggregations for
HASH_JOIN
. - Added the following values to the feature flag parameter (
siren-federate-features
) to manipulate the push down optimization in aggregations:AGG_PUSH_QUERY
to push down query clauses defined in the root search request.AGG_PUSH_NONE
to not push down any query.AGG_PUSH_ANCESTORS
to push down filter clauses found in the ancestors aggregation buckets.
- Improved the documentation on thread pools and its types.
- Improved the documentation on settings.
- Increased the default value of
federate.planner.multi_conditional.index_lookup.limit
to 50,000. - Improved the pruning in AQP to avoid duplicated lookup requests.
Bug fixes
- Fixed join query failures caused by unsupported matches API used by highlighters.
- Fixed an error message when using a plain string instead of an array for the
on
clause. - Fixed an issue with the caching of AQP requests caused by the wrong
searchLock
selection. - Fixed the
explain
API to not prune tasks anymore. - Fixed a bug that prevented the detection of
EmptyJoin
inside aggregations. - Fixed a bug that prevented
federate_object
from referencing fields projected from a child scope. - Fixed a bug in the REST
_siren/cache/planner
endpoint to handle also thefield_caps
cache used during the planner phase.
Deprecations
- Marked REST endpoint
_siren/cache
as deprecated, use_siren/cache/planner
instead. - Marked connector APIs as deprecated; connector APIs includes:
** Ingestion and Job API
** Datasource API
** Virtual index API - Deprecated the setting
federate.planner.index_join.max_lookups
. The new setting to use isfederate.planner.multi_conditional.index_lookup.limit
.
Download it here .