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From Luke Sneeringer <>
Subject Re: CouchDB Hangs on View Creation
Date Tue, 01 Dec 2009 14:26:21 GMT
> > Onto my issue. I have a database with about 59,000 documents. Some contain attachments,
> some do not. I tried to replicate (pull, not push) said database from one CouchDB instance
> to another one. The replication failed several times inexplicably, both using curl on
> command line (Ubuntu 9.10) and Futon. Finally, it succeeded in Futon. I am defining "failed"
> here as that replication seemed to hang; the number of documents in the target database
> not increase, was less than the number of documents in the source database (by many thousands),
> and the item disappeared from the status page in Futon. Also, on the failed attempts,
> failed in different places each time.
> >
> What is your couchdb version on both ends of the replication?
I'm using 0.10.0 on both sides.

> Also, pay attention to database file size on the target. Sometimes
> with big attachments the doc count is unchanged as binary data is
> written for a long time.
I actually started watching the binary file size on view creation, and it would stop increasing
as well. I did not, however, monitor it on the replication itself.
> > So eventually it succeeded. Huzzah. Except now I can't create any views. It just
> work. I never see my results. So, I went and started looking at the file being created
> /var/lib/couchdb/0.10.0/.dbname_design/. There's a .view file that gets created, and
its size
> goes up for awhile and then stops going up. At the time that file size ceases to increase,
> I get a erl_crash.dump file that is 0 bytes in length. Not really valuable.
> >
> > The view scripts themselves are "known good"; they work on the source server.
> Maybe a difference in versions. Can you supply a link to the view scripts?
I'm using 0.10.0 in both cases.
I attempted a couple of different views, but this was the first one and the one I was repeatedly
working on:
function(doc) {
    for (var i in doc.groups) {
        if (i === 'author') {
            for (var j in doc.groups[i]) {
                emit([doc.groups[i][j], doc.timestamp], doc)
And thank you, by the way!

Best Regards,
Luke Sneeringer
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