Error creating projection/query with multiple streams (EventStore: 1.0.1, EventStore.Client: 1.1.0)

EventStoreDB
1

I was trying to write a query with two streams and enabled ‘reorderEvents’.

Here is my query:

options({

            useEventIndexes: false,  reorderEvents: true,  processingLag: 50,              

});

fromStreams(['Stream1','Stream2'])

.when({

    $init: function () {

        return { count1: 0, }; // initial state

    },

  

    event_type1: function(s, e) {

        s.count1 += 1;

        return s;

    },

})

When above query is executed, it enters running state and never completes in screen. Also, below specified error is logged in the console:

[00096,20,11:35:06.485] Error while processing message EventStore.Projections.Core.Messages.ProjectionCoreServiceMessage+EventReaderIdle in queued handler ‘Projection Core #0’.

Operation is not valid due to the current state of the object.

[00096,20,11:35:06.485] Error while processing message EventStore.Projections.Core.Messages.ProjectionCoreServiceMessage+EventReaderEof in queued handler ‘Projection Core #0’.

Operation is not valid due to the current state of the object.

  1. How do I resolve above error? I am using EventStore version: 1.0.1 and EventStore.Client 1.1.0

  2. Is processingLag applied to every event in the stream?

Thanks in advance.

2

If this is run in dev version is the issue corrected? Projections have been in experimental state in previous releases and this may be a bug. The dev branch will be pushed to master hopefully within a week or so.

3

This was fixed in dev branch on May 8th.

Best regards,

Kostyantyn Pyatkivskyy

4

Thank you for the quick response.