[jira] [Created] (COUCHDB-1791) Initial index of views is highly fragmented

["James Howe (JIRA)" <ji...@apache.org>]

James Howe created COUCHDB-1791:
-----------------------------------

             Summary: Initial index of views is highly fragmented
                 Key: COUCHDB-1791
                 URL: https://issues.apache.org/jira/browse/COUCHDB-1791
             Project: CouchDB
          Issue Type: Improvement
          Components: JavaScript View Server
            Reporter: James Howe


function(doc) {
  if (doc.a = 'b') { emit(doc._id, null); }
}

This view, running on CouchDB 1.2.1, takes 16 minutes to index from scratch on an inactive database, creating a 2.5GB file.
After compaction, the file is then only 157MB.

Can we do something about this waste of disk I/O, such that the initial index is smaller to start with?


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Re: [jira] [Created] (COUCHDB-1791) Initial index of views is highly fragmented

[Jann Horn <ja...@thejh.net>]

On Fri, May 10, 2013 at 02:41:16PM +0000, James Howe (JIRA) wrote:
> function(doc) {
>   if (doc.a = 'b') { emit(doc._id, null); }
> }

OT: I think you want `==` instead of `=`?