The problem is, I 'technically' don't have access to add a filter function on
the Source server - it could be owned by someone else. So I must do my
filtering at the target server.
What I've discovered is that in all the documentation out there in the
wiki/blogs/listservs - they're all missing some "extremely critical"
documentation for validate_doc_update. What I've determined so far via
laborious trial and error is:
A. To reject due to authentication, you must throw an error object:
{ unauthorized: "Your message stating authentication error" }
This will kill the replication process completely.
B. To just blindly cause replication to stop due to an error:
{ error: "Your message describing the error" }
C. To only reject the new document being validated, and CONTINUE validating
other docs, throw:
{ forbidden: "Your message why you're forbidding the object from your
db" }
There might be other errors that could be thrown, but I got no idea what they
are, and NONE of the above is really documented anywhere - only hinted at in a
few places.
Now if I can find my username for the wiki - I'll try and update it!
Jim Klo
Senior Software Engineer
Center for Software Engineering
SRI International
On Dec 21, 2011, at 4:41 PM, Rogutės Sparnuotos wrote:
> Jim Klo (2011-12-21 16:15):
>> Okay, I think I finally figured out how to get the validate_doc_update
>> function to work.
>>
>> Now the question is... I only want to replicate some of the docs.
>> Regardless of whether I return true or false all docs seem to replicate.
>> Here's a link to the validate function: https://gist.github.com/1507943
>>
>> My log shows nothing but thousands of lines like this:
>> [Wed, 21 Dec 2011 23:51:15 GMT] [info] [<0.16027.7>] OS Process
>> #Port<0.22580> Log :: validating for alignment.
>> [Wed, 21 Dec 2011 23:51:15 GMT] [info] [<0.16027.7>] OS Process
>> #Port<0.22580> Log :: 26120f9dccbe452abae585889988ff71-distributable is NOT
>> being replicated.
>>
>> and none showing that it is replicating, however afaik, it's replicating
>> everything, as my empty db, now has thousands of docs that shouldn't be
>> there.
>>
>> The docs for the validate_doc_update seems to indicate to throw an error
>> instead of returning true or false; however doing that causes replication to
>> fail.
>>
>> What might I be doing wrong?
>
> You want http://wiki.apache.org/couchdb/Replication#Filtered_Replication.
> And then throw an error in validate_doc_update, so that unfiltered
> replication fails.
>
> --
> -- Rogutės Sparnuotos
