Merge main to 2.x#830

Merged

penghuo merged 20 commits intoopensearch-project:2.xfrom

penghuo:backport/2.x

Sep 14, 2022

Commits on Aug 17, 2022

Bump Checkstyle version to latest (#767)
dai-chen
authored

Commits on Aug 18, 2022

Commits on Aug 31, 2022

Deprecated ClusterService and Using NodeClient to fetch meta data (#774) (#792)
penghuo
authored

Commits on Sep 1, 2022

Change master node timeout to new API (#793)
dai-chen
authored

Commits on Sep 7, 2022

Commits on Sep 9, 2022

Bugfix, copy of AggregationOperator should be same (#806)
penghuo
authored

Commits on Sep 12, 2022

Commits on Sep 13, 2022

Commits on Sep 14, 2022

Merge branch 'main' into 2.x
penghuo
committed