* Implement the base of config API module.

* Finish configuration module codebases w/o tests, revert some changes.

* Finish mock tests.

* Add new gRPC service for configuration.

* Make gRPC configuration sync provider works.

* Add database slow statement dynamic setting.

* Finish the dynamic configuration service.

* Fix version.

* The new feature of Elasticsearch storage with the time series implementation.

* Time bucket util improve.

* Fixed some Gramma error.

* Update ttl.md

Polish English a little.

* Update ttl.md

Add more explicit description of TTL

* Update ttl.md

* Update StorageModuleElasticsearchConfig.java

Set otherMetricsDataTTL = 0 as default, make user more clear.

* Rename the timeSeriesAble to capableOfTimeSeries

* Fixed a test case failure.

* Make the step just to be the graphql java object.

* Mistake.

* feat(agent sdk): resteasy plugin

* fix(agent sdk): fix component define

* fix(agent sdk): fix file license

* fix(agent sdk): fix file license

* docs(agent sdk): add supported list

* fix(agent sdk): fix file license

* fix(agent sdk): fix response error tag

* fix(agent sdk): fix

* fix(agent sdk): adapter 3.5+

* fix(agent sdk): remove unreasonable async handling

* Make backend fits new topology query protocol and logic.

* Change topology line id.

* Change endpoint point id rule to match service relation id rule.

* Refactor util.

* Revert wrong refactor by IDEA.

* Revert some changes.

* Fix entity id bug.

* Fix endpoint topology query

* Update UI.

* UI license update.

* spring cloud gateways plugin

* New stream annotation.
- Inventory annotation example:
@Stream(name = ServiceInventory.INDEX_NAME, scopeId = DefaultScopeDefine.SERVICE_INVENTORY, storage = @storage(builder = ServiceInventory.Builder.class, deleteHistory = false), kind = StreamKind.Inventory)

- Metrics annotation example:
@Stream(name = ServiceRelationClientSideMetrics.INDEX_NAME, scopeId = DefaultScopeDefine.SERVICE_RELATION, storage = @storage(builder = ServiceRelationClientSideMetrics.Builder.class), kind = StreamKind.Metrics)

- Record annotation example:
@Stream(name = SegmentRecord.INDEX_NAME, scopeId = DefaultScopeDefine.SEGMENT, storage = @storage(builder = SegmentRecord.Builder.class), kind = StreamKind.Record)

- TopN annotation example:
@Stream(name = TopNDatabaseStatement.INDEX_NAME, scopeId = DefaultScopeDefine.DATABASE_SLOW_STATEMENT, storage = @storage(builder = TopNDatabaseStatement.Builder.class), kind = StreamKind.TopN)

* no message

* Stream annotation finish.

* Make stream processors to be the singleton class.

* Fixed the compile errors.

* Modify the OAL module for this annotation refactor.

* Add apache license header.

* Duplicate import.

* Fixed check style error.

* Fix #2546

* Change the stackdepth type

* Fix bug

* Fix CI failed

* fix #2599

* fix ci

* add license

* add ActiveTag error methods

* fix

* fix

* nacos

* nacos

* nacos

* nacos

* fix ci

* support nacos cluster

* fix yml

* fix license

* fix ci

* remove optional

* update license

* update license and doc

* fix

* Rename metric to metrics.

* Fixed test case execute failure issues.

* Move submodule plugin.

* Always auto-submodule

* [maven-release-plugin] prepare release v6.1.0

* [maven-release-plugin] prepare for next development iteration

* Change keys location.

* vertx plugin impl

* Provide elasticsearch template operation method.

* Fixed compile failure issue.

* New query graphql protocol added.

* Finish a new metric, log(abstract) with HTTP Access Log.

* Submit the draft codes of logs.

* Remove @IDColumn

* Fix startup issue.

* Add http_access_log to disable list.

* Finish a wrong service implementation.

* Add trace id in log query condition and result.

* Fix style

* Make Jaeger receiver works in 12450 as default.

* Finish compile and codebase.

* Make codes runnable.

* Finish Jaeger query tests.

* Add document for jaeger receiver.

* Add readme.

* Fix a break link.

* Finish doc.

* Codebase for zipkin span persistence.

* Fix missing fields in storage.

* Miss the latency field.

* Finish some tests.

* Fix wrong latency.

* Finish doc and reset application.yml

* Make the description more clear.

* 1. Remove static worker instances holder.
2. Remove static worker instance id generator.

* Fixed test case failure.

* Try to make disable work.

* Make disable works.

* Add disable document.

Add catalog to ScopeDeclaration annotation. Make the alarm adapt to it. Now more metric could go through alarm, such as JVM, CLR. (#2391)

* Add SmartSql provider components in component-libraries config

* sync SmartSql provider setting -> fix https://github.com/apache/incubator-skywalking/issues/2390

* Rename ALarmSupported to WithMetadata

* Finish the base of exporter.

* Fix class comment.

* Make k8s-Coordinator back in role mode.

* Start query API server after the core started.

* Do lock when port has been intialized.

* Rename service.

* Fix text cases.

* Declare ConfigService.class in core module.

* Implement in an easier way.

* Envoy print whole metric, now in debug.

* Forcedly fix envoy timestamp issue.

* The role of OAP server.
Mixed: Receive agent data, level 1 aggregate, level 2 aggregate
Receiver: Receive agent data, level 1 aggregate
Aggregator: level 2 aggregate

* Mistake, stadalone default.

* Update application.yml

* Extend envoy metric service, scope and OAL lexer/parser.

* Finish metric extension and oal.

* Make test env works.

* Finish test of envoy connection and memory metric.

* Change document.

* Finish docker compose test.

Fixed wrong parameter

* Add CLR metric scope and oal_script

* Add max indicator

* Fix checkstyle

* Make scope meta configurable.

* Fix test cases in ci.

* Change step 1

* Refactor step 2

* Other compile issue done. Prepare the generator changes.

* Revert some wrong changes to Istio receiver.

* Step 3, make compile pass.

* Try to make CI passed.

* Add a check.

* Fix generated code style

* Provide new and extendable dispatcher generator tool

* Fix startup.

* Can't guarantee the dispatchers are always existing. Put explicit comments at there to avoid confusion, since this is different with old version.

* Fix a H2 query for endpoint search.

* Fix a wrong mysql alarm query.

* Provide new document and `generate-tool-grammer` module.

* Add missing last section of document.

* Fix typo

* Relocate the @ScopeDeclaration annotation, make it more sense. Also remove the useless @SourceType annotation. And adjust document for these changes

* ScopeDeclaration can be used once for each class only, now.

* add serviceInstanceId in Segment storage.

* add serviceInstanceId in query condition.

* Refactor for cluster mode.

* Make send to L2 in certain cycle.

* Try adjustment.

* Remove heartbeat.

* Make heartbeat back to work. And default threadpool size more sense.

* Make L2 to less than before.

* Make instance heartbeat works.

* Try L1 aggregation thread = core * 2 * 2.