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From: Daniel Szwed <d.szwed@hotmail.com>
To: <user@couchdb.apache.org>
Subject: Can not get CouchDB external processes working
Date: Fri, 23 Sep 2011 13:13:15 +1030
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Hi=2C
I have been trying to get couchdb-lucene working with bigcouch for days now=
 and cannot work out what i am doing wrong=2C i have even tried the example=
 on the couchdb wiki and cannot get it to work either.

Bigcouch is running as a single node on the cluster:

curl -X GET http://localhost:5984/
{"couchdb":"Welcome"=2C"version":"1.0.2"=2C"bigcouch":"0.3.1"}

Created a database called 'database':
curl -X GET http://localhost:5984/database
{"db_name":"database"=2C"update_seq":"1-g1AAAAIReJzLYWBg4MhgTmFQT8pMT84vTc5=
wKErNzS9J1U3JLdbLS60oSU_NQ6JLcoAamBIZ8lgY_v__L5-VyECyZqBWIFCAmGBPvgkOEBPiyT=
chAWJCPfkmNEBMmE--CQsgJuzPSmQk04QDEBPuk--GBxAT_gNNyAIAL-WzZw"=2C"purge_seq"=
:0=2C"doc_del_count":0=2C"doc_count":1=2C"disk_size":4732=2C"disk_format_ve=
rsion":5=2C"compact_running":false=2C"instance_start_time":"0"}

I have modified the /opt/bigcouch/etc/local.ini with:

[external]
test =3D python /usr/local/src/couchdb/test.py

[httpd_db_handlers]
_test =3D {couch_httpd_external=2C handle_external_req=2C <<"test">>}

[log]
level =3D debug

And created the /usr/local/src/couchdb/test.py containing:

import sys

try:
    # Python 2.6
    import json
except:
    # Prior to 2.6 requires simplejson
    import simplejson as json

def requests():
    # 'for line in sys.stdin' won't work here
    line =3D sys.stdin.readline()
    while line:
        yield json.loads(line)
        line =3D sys.stdin.readline()

def respond(code=3D200=2C data=3D{}=2C headers=3D{}):
    sys.stdout.write("%s\n" % json.dumps({"code": code=2C "json": data=2C "=
headers": headers}))
    sys.stdout.flush()

def main():
    for req in requests():
        respond(data=3D{"qs": req["query"]})

if __name__ =3D=3D "__main__":
    main()

Trying:
curl -X GET http://localhost:5984/database/_test

just gives an error  {"error":"not_found"=2C"reason":"missing"}.

Which is the same response when trying to get lucene working=2C looks like =
the external handlers are not being found at all.

Any help would be appreciated.

Cheers=2C
Daniel. 		 	   		  =

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