[CCR] The stats for an unknown index return a 200 status

[sebelga]

When we try to access the stats for a follower index that does not exist, we receive a 200 status with the following response

GET /unknown/_ccr/stats

Status 200
{
    "indices": []
}

To be consistent with other APIs and follow REST standards, it should return a 404 status.

If we try the same with the /_stats API we do get the correct status

GET /unknown/_stats

Response
{
    "error": {
        "root_cause": [
            {
                "type": "index_not_found_exception",
                "reason": "no such index [unknown]",
                "resource.type": "index_or_alias",
                "resource.id": "unknown",
                "index_uuid": "_na_",
                "index": "unknown"
            }
        ],
        "type": "index_not_found_exception",
        "reason": "no such index [unknown]",
        "resource.type": "index_or_alias",
        "resource.id": "unknown",
        "index_uuid": "_na_",
        "index": "unknown"
    },
    "status": 404
}

[elasticmachine]

Pinging @elastic/es-distributed

[kradygithub]

Hi，here is my question: I try to use python to put data to es6.5.3, I found there is something different between 5.x and 6.x, When I try to put data with fixed “_id” item,I got the error msg: [_id] is a metadata field and cannot be added inside a document I want to fixed the id item to set the join relations parent and child. Everyone knows the answer? Waiting...

…

在 2018年12月28日，下午11:45，Elastic Machine ***@***.***> 写道： Pinging @elastic/es-distributed — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[martijnvg]

@sebelga Makes sense, this should be fixed.