Enhancing Async Search

[mayya-sharipova]

Description

This is a meta issue on enhancing Async Search:

Bugs/Clarifications

• Async search: clarify when the response is final #55572
• Follow-ups for circuit breaker work (#67594):
  • Should we enable the soft-limit by default in 7.15?
  • Should we enable the limit for EQL responses as well?

New Feature requests

• Add completion_time time field to async_search get or status response #88640
• Batch get async search status #86009
• Provide a way to only extend async_search keep_alive #86011
  • Extend async search keep alive #67877 reverted
    -async search extend API #86012 duplicate ?
• Better control of .async-search index size  #70037
• Async search to expose partial search hits #62935

Enhancements for stability and more robust performance

• Separate metadata from the actual response in async search index #71223
• Async search support for cross cluster search minimize round trip optimization  #73971
• Async search: store intermediate results #55464
• Assign priorities to search requests #37867
  • should async searches share the same thread pool?

[elasticsearchmachine]

Pinging @elastic/es-search (Team:Search)

[javanna]

I am closing this meta issue in favour of the sub-issues that it points to that have remained open.