* Add Istio control plane otel MAL expressions and UI template
* Remove OpenCensus receiver, add OpenTelemetry receiver
* Transfer oc receiver to ot receiver
* Create indices on boot
* Document istio metrics and otel receiver
* Update CHANGES.md
* Fix potential NPE
* Add group to meter and cleanup istio mixer
* Update e2e case due to the change of meter metric name
* Update prometheus fetcher config, fix sql builder issue of h2
* Disable istio and so11y metrics by default.
* Fix micrometer testcase

* fix transaction too large error when use TiDB as storage

* add CHANGES.md

* fix typo

* add tidb storage provider module.

* add e2e.

* revert ui submodule.

* fix license.

* Fix wrong health check test

* add tidb ttl e2e.
Co-authored-by: Nmoonsphere <moonsphere@m.com>
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* Support group in the service traffic and service list query.

* Fix SnakeYAML CVE. Make doc and sharing receiver codes consistent.

* Update changelog.

* Fix word.

* Fix style issue.

* Add FAQ about VNode on the UI.
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>

* 1.Add ThreadPoolExecutor for handle kafka message.
Co-authored-by: NDaming <zteny@foxmail.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

The current implementation of envoy ALS K8S analysis is based on the hierarchy, pod -> StatefulSet -> deployment, StatefulSet, or others. It's freaky and different from the Istio Kubernetes registry.

The new path is pod -> endpoint -> service, and we should leverage Informer API instead of raw Kubernetes API.

Add syncBulkActions config to avoid the large amount of metrics data written ES in a single sync bulk request. (#5699)

* Support Nacos auth

* Add SW_NO_UPSTREAM_REAL_ADDRESS config doc

* Fix legal config issue.

* Update docs/en/setup/backend/configuration-vocabulary.md

* Add a test case to verify the module config initializer, which only supports 4 simple types.
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>

* Add dingtalk webhook
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* Support SSL for prometheus telemetry and prometheus fetcher
* Documents
* Clear up abandunt dependencies
* Update license
Signed-off-by: NGao Hongtao <hanahmily@gmail.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* distinct the number of metrics or common record index with super dataset index.

* Save some error trace segment, event this segment abandoned by server side trace sampling mechanism.
* Support forceSaveErrorSegment config to control force save some error segment.
Co-authored-by: Necho <zifeihan@foxmail.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>