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https://issues.apache.org/jira/browse/USERGRID-1310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Russo resolved USERGRID-1310.
-------------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
> No cursor returned when paging incoming connections
> ---------------------------------------------------
>
> Key: USERGRID-1310
> URL: https://issues.apache.org/jira/browse/USERGRID-1310
> Project: Usergrid
> Issue Type: Story
> Components: Stack
> Reporter: David Johnson
> Assignee: David Johnson
> Fix For: 2.2.0
>
>
> Investigate and fix: no cursor returned when getting incoming connections?
> ---
> From Andrew Lane on the user mailing list:
> Let's say I have some collection called someentity that has connections to
> other entities via a verb subscribedto. For a particular entity with id
> some_id, I'd like to pull all the entities that are connected to this entity
> via the subscribedto verb. I can do that via this GET request:
> /org/app/someentity/some_id/subscribedto
> However, I'm not sure how I stream or page through this data if there are
> thousands or more results. I'm not getting back a cursor or anything. Is
> having a huge number of connections to a particular entity something that's
> just not a smart thing to do with Usergrid?
> From Dave Johnson:
> ---
> Usergrid is designed to support a huge number of connections, and we
> implemented "edge sharding" to ensure that we are not thwarted by Cassandra's
> 2-billion column limitation.
> The normal way to page through results is to have a cursor, so the fact that
> you did not get a cursor is a problem, and most likely a bug -- can you share
> the exact API call you are making as a curl (or HTTPie) command? Do you see
> any errors in the logs?
>
> From Andrew Lane:
> ---
> I have a collection of events, and users can subscribe to those events via a
> connection called "subscribedto". For a particular event (some_event_id),
> I'm trying to stream all the users that are subscribed to that event. In my
> scenario, there are over 1000 subscribers. I'm issuing something like this
> (note the "connecting" part of the URL, which I accidentally ommitted
> previously):
> curl -X GET
> "http://myserver:8080/myorg/sandbox/events/some_event_id/connecting/subscribedto?limit=5";
> It's correctly limiting to 5 users, but I'm not getting any cursor where I
> can continue streaming. If I remove the limit clause, I only get the first
> 1000 results, which I expect. But again, no cursor to continue to pull data.
> From Andrew Lane:
> ---
> I should be clear that I DO get a cursor when querying the relationship in
> the opposite direction. That is, if a single user is subscribed to more than
> 1 event, I can stream those successfully and I get a cursor. It's the
> inverse direction that's not giving me a cursor.
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