This commit adds more information to the ElasticSearch REST
health indicator.
When the ES instance responds with an error HTTP status,
the health details now include the actual status code and reason phrase.
When the ES instance returns a HTTP 200 response, the entire response
map is used as health details.
See gh-15366
This commit adds `ElasticsearchRestHealthIndicator`, a new
`HealthIndicator` for Elasticsearch, using the Elasticsearch "low level
rest client" provided by the
`"org.elasticsearch.client:elasticsearch-rest-client"` dependency.
Note that Spring Boot will auto-configure both low and high level REST
clients, but since the high level one is using the former, a single
health indicator will cover both cases.
See gh-15211
This commit changes the requested endpoint for the Jest
HealthIndicator. The `"/_all/_stats"` was previously used, but
the response size can be quite large and costly.
This is now using the `"/_cluster/health"` endpoint.
Previously, when using Tomcat, a call to mappings endpoint would force
the initialization of any DispatcherServlets in the context. This was
done by calling allocate on Tomcat's StandardWrapper. This left the
wrapper in a state that would cause it to block for two seconds during
shutdown as the wrapper has an outstanding allocation.
This commit immediately deallocates the servlet after it has been
allocated. This ensures that the DispatcherServlet has been initialized
while also leaving the wrapper in a state that it can shut down
immediately when asked to do so.
Closes gh-14898
Stephane Nicoll
Oleksii Bondar
igor-suhorukov
Andy Wilkinson
Brian Clozel
Filip Hrisafov
Phillip Webb
artsiom
Rahul Ahuja
Johnny Lim
dreis2211
Julian Devia
Vedran Pavic
Madhura Bhave