One more thing… inserting new doc is also not prone to document conflicts since you're not updating a document when logging access from multiple threads.
- JK On Mar 14, 2013, at 7:13 PM, Jim Klo <[email protected]> wrote: > I think you'd be better off tracking access by inserting an immutable > document with a new timestamp and doc._id of the accessed document. > > You could then create a view that 'joined' the timestamp doc with real doc, > by emiting timestamp as key and { _id: accessed_doc._id } as the value then > requesting with_docs=true if I remember correctly… > > Updating doc to append a timestamp would be inherently slow if you have a > high volume of repeat access and cause your views to consistently have to > update… > > just my 2¢ > > - Jim > > Jim Klo > Senior Software Engineer > Center for Software Engineering > SRI International > t. @nsomnac > > On Mar 14, 2013, at 5:56 PM, Stephan Bardubitzki <[email protected]> > wrote: > >> Hi there, >> >> I have a task where I need to track how often a doc is accessed. The two >> possible ways I can think of are: >> >> 1. add an array to the doc and add the timestamp when it is accessed >> 2. create a new document and add the doc._id and the timestamp >> >> Which one would you prefer? Or is there a better solution? >> >> Thanks, >> Stephan >> >
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