[HSEARCH] Feedback on Elasticsearch presentation
by Emmanuel Bernard
Hey all,
I've done a presentation of the new Elasticsearch integration with a
Elasticsearch developer+advocate. Here are some key inputs from the
listener feedback.
The presentation was a Tools in Action (30 mins) where we took a JPA
app, added Elasticsearch for entity indexing manually (describing
issues) and then restart with Hibernate Search.
There was big interest, so a bit less feature release earlier will help
more than "better" later.
One big feedback is that we need to help people on the analyzer
definition in Elasticsearch (from our metadata):
- map existing ES analyzers to ours
- offer way to define an analyzer and have it pushed with the index
definition when we create them
- figure out a way to embed the additional key options like nbr of
shards when we create the index definition
- offer an export function for our index definition so that people can
curl it themselves
The other part was about mapping:
- support for parent child: parent / child is a bit like Infinispan
grouping where the children are colocated in the same node as the
parent. So it's a single node join. David was not necessarily
recommending me to support that from the get go because we already
handle the right denormalization via HSearch.
- support for nested mapping and nested queries. This is also a
relatively expensive prop so not all nested structure should be mapped
as ES nested. Here we probably should offer a specific mapping
annotation or option and write the nested query accordingly
For the mapping part, we probably should write these down in the FAQ as
to why we don't do them right away and the workaround available.
Emmanuel
9 years, 6 months
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