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From Apache Wiki <>
Subject [Couchdb Wiki] Update of "Troubleshooting" by NoahSlater
Date Tue, 09 Mar 2010 11:17:03 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Couchdb Wiki" for change notification.

The "Troubleshooting" page has been changed by NoahSlater.


   8. Report back to the mailing list (or IRC) with the output from each step.
- == invalid UTF-8 JSON ==
- When upgrading from old versions of CouchDB, it is best to really get rid of everything
old.  If you get strange errors and all but the simplest actions appear to be broken, and
especially if you are seeing {"error":"bad_request","reason":"invalid UTF-8 JSON"} type of
errors in Futon, then you should try something like the following:
- {{{
- find /usr/local -name \*couch* | xargs rm -rf 
- make && sudo make install
- }}}
- This was discussed on 13 Dec 2009 on the users mailing list, and the resolution is discussed

- [[|here]]
- [[|here]]
  == Misc Errors ==
  CouchDB using a lot of memory (several hundred MB) on startup?  This one seems to especially
affect Dreamhost installs.  It's really an issue with the Erlang VM pre-allocating data structures
when ulimit is very large or unlimited.  A detailed dicussion can be found [[|on
the erlang-questions list]], but the short answer is that you should decrease ulimit -n or
define ERL_MAX_PORTS to something reasonable like 1024.

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