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From "Jyrki Pulliainen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-743) Sending attachments via new HTTP API is slow if attachment size is bigger than 1024 bytes
Date Mon, 19 Apr 2010 10:58:50 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858453#action_12858453
] 

Jyrki Pulliainen commented on COUCHDB-743:
------------------------------------------

We set the curl Expect header empty (using -H 'Expect:') and the problem seems to be gone.
Thanks Robert Newson for the tip!

> Sending attachments via new HTTP API is slow if attachment size is bigger than 1024 bytes
> -----------------------------------------------------------------------------------------
>
>                 Key: COUCHDB-743
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-743
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core, HTTP Interface
>    Affects Versions: 0.10, 0.10.1
>         Environment: Ubuntu Karmic (9.10) with CouchDB 0.10.0. According to IRC conversations,
also reproduced with 0.10.1
>            Reporter: Jyrki Pulliainen
>
> When using HTTP PUT to store attachments the request takes exactly one second to finish
when the attachment size is 1025 bytes or more. This behaviour does not occur with inline
attachments.
> Here's a bash script to reproduce the behaviour (requires curl and python >= 2.6)
> #!/bin/sh
> size=1025
> curl -X DELETE http://localhost:5984/test
> curl -X PUT http://localhost:5984/test
> docid=0
> while true; do
>     rev=`curl -s -X PUT http://localhost:5984/test/$docid --data-binary '{}' | python
-c "import json; import sys; print json.load(sys.stdin)['rev']"`
>     echo -n "start:"; date '+%H:%M:%S.%N'
>     head -c $size /dev/urandom | curl -s -X PUT -H 'Content-Type: text/plain' http://localhost:5984/test/$docid/attachment\?rev=$rev
--data-binary @-
>     echo -n "end:"; date '+%H:%M:%S.%N'
>     docid=$(($docid+1))
> done

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