[Enhancement]: Add `ServiceDiscovery` abstraction

[congqixia]

Is there an existing issue for this?

• [X] I have searched the existing issues

What would you like to be added?

Add ServiceDiscovery abstraction and refactor sessionutil package

Why is this needed?

With ServiceDiscovery abstraction, it's easier to integrate other registry service such as Consul, ZK, etc. And currently the Session provides too much function which does not make sense, say "list other session" Also, with ServiceDiscovery interface, we could implement internal process call in Standlone, Mixcoord or any other mixture deployment mode instead of heavy grpc call.

Anything else?

No response

[congqixia]

• [ ] Add ServiceDiscovery interface definition
• [ ] Provides all features sessionutil has
• [ ] Add InternalProcessServiceDiscovery implementation
• [ ] Adapt ServiceDiscovery as dependency in all components
  • [ ] Datacoord
  • [ ] Querycoord
  • [ ] RootCoord
  • [ ] DataNode
  • [ ] QueryNode
  • [ ] IndexNode
  • [ ] proxy
• [ ] Remove sessionutil

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.

[xiaofan-luan]

keep it

[congqixia]

/reopen

[sre-ci-robot]

@congqixia: Reopened this issue.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.

[jiaoew1991]

/reopen

[sre-ci-robot]

@jiaoew1991: Reopened this issue.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.

[xiaofan-luan]

keep it open

[jiaoew1991]

/reopen

[sre-ci-robot]

@jiaoew1991: Reopened this issue.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.

[congqixia]

/reopen still WIP

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.

[jiaoew1991]

/reopen

[sre-ci-robot]

@jiaoew1991: Reopened this issue.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Rotten issues close after 30d of inactivity. Reopen the issue with /reopen.