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Date: Tue, 15 Sep 2009 18:33:57 -0700 (PDT)
From: "Bob Dionne (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Subject: [jira] Updated: (COUCHDB-504) HTTP/1.1 keep alive fails with AB
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     [ https://issues.apache.org/jira/browse/COUCHDB-504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bob Dionne updated COUCHDB-504:
-------------------------------

    Attachment: couch_httpd_hack.patch

this patch to send_json puts "Connection : Keep-Alive" into the response header, if it exists in the request. This isn't likely the best solution but it solves the problem and all the tests run. 

> HTTP/1.1 keep alive fails with AB
> ---------------------------------
>
>                 Key: COUCHDB-504
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-504
>             Project: CouchDB
>          Issue Type: Bug
>          Components: HTTP Interface
>    Affects Versions: 0.10
>         Environment: Trunk
>            Reporter: Paul Joseph Davis
>            Assignee: Paul Joseph Davis
>            Priority: Blocker
>         Attachments: couch_httpd_hack.patch
>
>
> Reported on dev@
> On Tue, Sep 15, 2009 at 3:33 PM, thomas hallaran <thallaran@gmail.com> wrote:
> > Hi all,
> > We are using couchdb in production and have come across what appears to be a
> > bug in the HTTP implementation. Apparently http keep alive requests are not
> > correctly supported by couchdb.
> >
> > This problem has been verified for both couchdb .10 a running on  ubuntu
> > with erlang 13.b1 and couchdb .91 running on osx.  We have also reproduced
> > it with multiple http clients, the apache hc java client, curl and ab.
> >
> > To Reproduce: ab -v 4 -k -n1
> > http://localhost:5984/{COUCHDB_GET_ENDPOINT}<http://localhost:5984/%7BCOUCHDB_GET_ENDPOINT%7D>times
> > out. If you add more requests for ab to do (-n4 or something) you will
> > see that rather than reusing the connection, each keepalive request times
> > out and then the connection is reopened and the request made.
> And I've verified:
> $ svn up
> #snipped
> Updated to revision 815457.
> $ ./bootstrap && ./configure && make dev
> #snipped
> $ ./utils/run
> Apache CouchDB 0.11.0a815457 (LogLevel=info) is starting.
> Apache CouchDB has started. Time to relax.
> # In second terminal
> $ curl -X PUT http://127.0.0.1:5984/test_fu
> {"ok":true}
> $ curl -X PUT -d '{"stuff": "here"}' http://127.0.0.1:5984/test_fu/beer
> {"ok":true,"id":"beer","rev":"1-9782357dd8b8d18d94843686e510ec92"}
> $ ab -v 4 -k -n1 http://127.0.0.1:5984/test_fu/beer
> This is ApacheBench, Version 2.3 <$Revision: 655654 $>
> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
> Licensed to The Apache Software Foundation, http://www.apache.org/
> Benchmarking 127.0.0.1 (be patient)...INFO: POST header == 
> ---
> GET /test_fu/beer HTTP/1.0
> Connection: Keep-Alive
> Host: 127.0.0.1:5984
> User-Agent: ApacheBench/2.3
> Accept: */*
> ---
> LOG: header received:
> HTTP/1.0 200 OK
> Server: CouchDB/0.11.0a815457 (Erlang OTP/R13B)
> Etag: "1-9782357dd8b8d18d94843686e510ec92"
> Date: Tue, 15 Sep 2009 19:44:36 GMT
> Content-Type: text/plain;charset=utf-8
> Content-Length: 74
> Cache-Control: must-revalidate
> {"_id":"beer","_rev":"1-9782357dd8b8d18d94843686e510ec92","stuff":"here"}
> LOG: Response code = 200
> apr_poll: The timeout specified has expired (70007)

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