* feat: add dbname and health check for grpc api
* refactor: move health check to dedicated service
* chore: switch to merged proto rev
* feat: implement healthcheck on server-side
* feat: implement promql query on grpc
* test: resolve test errors
* test: add tests for promql grpc api
* refactor: align prom object name with proto
* chore: switch proto revision to main
* chore: get header in grpc & temp save
* chore: change authscheme to include data str
* chore: add auth to grpc flight handler
* chore: add unit test & hold for now since grpc api doesnt accept req input
* chore: minor change
* chore: minor change
* chore: add flight context to database interface
* chore: add test
* chore: update proto version & fix cr issue
* chore: add test
* chore: minor update
* add DistLock trait and a implement based etcd
wip
impl lock grpc service for meta-srv
reuse the etcd client instead of repeatedly creating etcd client
add some docs and comments
add some comment
meta client support distribute lock
fix: dead lock
self-cr
* cr
* rename "expire" -> "expire_secs"
* chore: upgrade to Arrow 29.0 and use workspace package and dependencies
* fix: resolve PR comments
Co-authored-by: luofucong <luofucong@greptime.com>
* refactor: dependency, from frontend depends on datanode to datanode depends on frontend
* wip: start frontend in datanode
* wip: migrate create database to frontend
* wip: impl alter table
* fix: CR comments
* feat: frontend instance
* no need to carry column length in `Column` proto
* add more tests
* rebase develop
* create a new variant with already provisioned RecordBatches in Output
* resolve code review comments
* new frontend instance does not connect datanode grpc
* add more tests
* add more tests
* rebase develop
Co-authored-by: luofucong <luofucong@greptime.com>
* feat: add grpc impl
* feat: add grpc server
* some ut
* verson format: a.b
* code style
* admin request/response
* by cr
* admin api
* by cr
* chore: by cr
* chore: by cr