Rollover API and upserts

[dao (olivier hodac)]

Hello, Do you confirm that doc_as_upsert is supported by the rollover API?

I mean if I follow https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-rollover-index.html:

• I have a document A in logs-0001
• the current is logs-0099
• I use the upsert a doc against logs_writer

is the result:

• if the doc does not exists, it is created in logs-0099
• if the doc exists (doc A), it is updated in its own index: logs-0001

[Christian_Dahlqvist]

@dao

if the doc exists (doc A), it is updated in its own index: logs-0001

No, it will be created in logs-0099 if it can not be found there.

[dao (olivier hodac)]

OK, therefore rollover API cannot be used with upserts? confirmed?

[warkolm (Mark Walkom)]

It can be used, but it doesn't make as much sense.

[Christian_Dahlqvist]

Not easily, as you would need to look up which underlying index to update first. If the upset has access to the original timestamp of the event, a time-based index where each index corresponds to a fixed period might be better.

[dao (olivier hodac)]

OK thank's for this prompt answer. I would suggest to add a note in the documentation, in the rollover API and the upsert one