ES storage plugin: query service to support spanKind when retrieve operations for a given service

[guo0693]

Requirement - what kind of business use case are you trying to solve?

Related to #1920

Update ElasticSearch reader and writer such that we can retrieve operations by service name and span kind

Problem - what in Jaeger blocks you from solving the requirement?

Proposal - what do you suggest to solve the problem or improve the existing situation?

Any open questions to address

[Horiodino]

If this issue remains unaddressed, I would like to work on it. !

[yurishkuro]

feel free to pick it up

[Horiodino]

I think it's already resolved. https://github.com/jaegertracing/jaeger/blob/main/plugin/storage/es/spanstore/reader.go#L297C1-L319C2

[yurishkuro]

it's not, it has a TODO on L310

[Horiodino]

thanks for the clarification, I got it, that we can read span Kind from Casandra db. but on what basis I want to write to db?
like something mentioned here server. here #1920

[yurishkuro]

@Horiodino I don't understand what you're asking.

[Horiodino]

#1920

as mentioned write operation index with service name and span kind
what is spanKind and on what basis i want to update it in writer

[yurishkuro]

This is already implemented in Cassandra storage, you can use this as a reference.