kkewwei

### Describe the bug In our product, we found that the CPU usage of the nodes is very uneven, but shard allocation is relatively uniform, when we close the ars,...

Creating index-patterns causes search threadPool to be exhausted

1

**Is your feature request related to a problem? Please describe.** 1. when I set the ccs in the cluster settings(the address is pointed to itself to reproduce) ``` PUT _cluster/settings...

Add a dynamic setting to change skip_cache_factor and min_frequency for querycache

29

### Description [Describe what this change achieves] ### Related Issues Resolves #17736 ### Check List - [x] Functionality includes testing. - [x] API changes companion pull request [created](https://github.com/opensearch-project/opensearch-api-specification/blob/main/DEVELOPER_GUIDE.md), if applicable....

Optimizing visiting BKD tree

4

### Description Closes: #14717

A little optimization about BKDReader

3

### Description **1.Reduce the match times for BKD node whose relation=`CELL_CROSSES_QUERY`.** When performing range query, if the Relation is `CELL_CROSSES_QUERY`, we need to traverse each value in this leaf node...