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https://issues.apache.org/jira/browse/COUCHDB-2859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217012#comment-15217012
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Robert Newson commented on COUCHDB-2859:
----------------------------------------

To be clear, it does not break compatibility not to send an ETag response 
header.

Since we have no solution for this that will work, and we need to ship 2.0, I 
resubmit that this is not a blocker for 2.0.


> View-Etags not working on cluster
> ---------------------------------
>
>                 Key: COUCHDB-2859
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-2859
>             Project: CouchDB
>          Issue Type: Bug
>          Components: HTTP Interface
>            Reporter: Sebastian Rothbucher
>            Assignee: Klaus Trainer
>             Fix For: 2.1
>
>
> (from list_views.js Integration test)
> 2 Reproduce: Query view, grab etag, query view again with -H 'if-none-match: 
> <etag>'
> Complete run: 
> {noformat}
> [root@localhost couchdb]# curl -X GET 
> 'http://localhost:15984/test_suite_db/_design/vtest/_view/v' -v
> * About to connect() to localhost port 15984 (#0)
> *   Trying ::1...
> * Verbindungsaufbau abgelehnt
> *   Trying 127.0.0.1...
> * Connected to localhost (127.0.0.1) port 15984 (#0)
> > GET /test_suite_db/_design/vtest/_view/v HTTP/1.1
> > User-Agent: curl/7.29.0
> > Host: localhost:15984
> > Accept: */*
> >
> < HTTP/1.1 200 OK
> < Cache-Control: must-revalidate
> < Content-Type: text/plain; charset=utf-8
> < Date: Sat, 17 Oct 2015 16:44:07 GMT
> < ETag: "16d73d700397bb00da24d90cde000bd1"
> < Server: CouchDB/8924e94 (Erlang OTP/17)
> < Transfer-Encoding: chunked
> < X-Couch-Request-ID: 63c44f488f
> < X-CouchDB-Body-Time: 0
> <
> {"total_rows":1,"offset":0,"rows":[
> {"id":"testdel","key":null,"value":null}
> ]}
> * Connection #0 to host localhost left intact
> [root@localhost couchdb]# curl -X GET 
> 'http://localhost:15984/test_suite_db/_design/vtest/_view/v' -v -H 
> 'if-none-match: "16d73d700397bb00da24d90cde000bd1"'
> * About to connect() to localhost port 15984 (#0)
> *   Trying ::1...
> * Verbindungsaufbau abgelehnt
> *   Trying 127.0.0.1...
> * Connected to localhost (127.0.0.1) port 15984 (#0)
> > GET /test_suite_db/_design/vtest/_view/v HTTP/1.1
> > User-Agent: curl/7.29.0
> > Host: localhost:15984
> > Accept: */*
> > if-none-match: "16d73d700397bb00da24d90cde000bd1"
> >
> < HTTP/1.1 200 OK
> < Cache-Control: must-revalidate
> < Content-Type: text/plain; charset=utf-8
> < Date: Sat, 17 Oct 2015 16:44:24 GMT
> < ETag: "16d73d700397bb00da24d90cde00194f"
> < Server: CouchDB/8924e94 (Erlang OTP/17)
> < Transfer-Encoding: chunked
> < X-Couch-Request-ID: 9a3cd3257b
> < X-CouchDB-Body-Time: 0
> <
> {"total_rows":1,"offset":0,"rows":[
> {"id":"testdel","key":null,"value":null}
> ]}
> * Connection #0 to host localhost left intact
> [root@localhost couchdb]#
> {noformat}



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