[annotator-dev] Annotator store delete fails every other time

Fri Nov 22 22:08:31 UTC 2013

Investigate further if you can, looking at headers in the browser and at
the server. If you can figure out whether it's your server or annotator
that would be helpful.

The 505 is strange.

I wonder if it's a keep alive issue? What "Connection" headers get sent and
received? What HTTP version is indicated? Any proxy or web server in front
of your store API?

I'm wondering if the second is a keep alive request and it's only at this
second request that some component decides that it won't support HTTP 1.1.

That would explain it happening on every other request: the first works,
the second fails because it reused the same connection, and the error
resets the connection so that a third works again.
On Nov 22, 2013 9:46 AM, "Michael Emery" <michael.emery at sri.com> wrote:

>  I’ve updated my return type from the default (unsure what that is, xml?)
> to json and provided an empty json element. Without the “{}” response, I
> get ‘no element found’ errors after both requests.
>
>
>
> @DELETE
>
> @Path("{name}/{id}")
>
> @Consumes("application/json")
>
> @Produces("application/json")
>
> *public* String destroy(@PathParam("name") String name, @PathParam("id")
> String id) {
>
> …
>
> return “{}”
>
> }
>
>
>
> The second request still fails, but now the first request no longer
> produces the ‘no element found’ error in the JS console:
>
>
>
> [09:31:15.992] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-496cfcf2-d119-4189-8688-95a2bc7f4586[HTTP/1.1 200 OK 24ms]
>
> [09:31:28.935] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-c4732b4f-be35-495d-9bc8-3ce9fa377521[HTTP/1.1 505 HTTP Version Not Supported 5ms]
>
> [09:31:28.879] no element found @
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-c4732b4f-be35-495d-9bc8-3ce9fa377521:1
>
> [09:31:28.881] API request failed: '505'
>
>
>
> I’ve just noticed that if I wait awhile to make the next request,
> everything works:
>
> [10:33:02.521] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-705fbafc-6985-444d-95c3-1f7e07bc1a47[HTTP/1.1 200 OK 33ms]
>
> [10:36:39.238] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-44acf3a2-147a-4966-9669-3f79213424a1[HTTP/1.1 200 OK 25ms]
>
>
>
> A back-to-back delete followed by a create also causes this error:
>
>
>
> [10:38:05.714] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-5ee91b36-7657-4f40-9a51-a2721e47a941[HTTP/1.1 200 OK 17ms]
>
> [10:38:08.726] POST http://localhost:8080/test/rest/annotations/ap.txt[HTTP/1.1 505 HTTP Version Not Supported 1ms]
>
> [10:38:08.674] no element found @
> http://localhost:8080/test/rest/annotations/ap.txt:1
>
> [10:38:08.675] API request failed: '505'
>
>
>
> That makes me think something isn’t getting read or closed correctly after
> the delete- which is messing up the next call.
>
>
>
> -          Mike
>
>
>
> *From:* Randall Leeds [mailto:tilgovi at hypothes.is]
> *Sent:* Thursday, November 21, 2013 6:40 PM
> *To:* Michael Emery
> *Cc:* annotator-dev at lists.okfn.org
> *Subject:* Re: [annotator-dev] Annotator store delete fails every other
> time
>
>
>
> Check the content type and other headers to be sure your response is
> interpreted as JSON. The "no element found"message makes it sound like the
> response is being parsed as HTML.
>
> On Nov 21, 2013 2:51 PM, "Michael Emery" <michael.emery at sri.com> wrote:
>
> My annotator store delete calls are failing every other time.
>
>
>
> The store is implemented in Java (Jersey/jax-rs) over Glassfish.
>
> Using: Annotator 1.2.7, jquery 1.8.3, jquery-ui-1.9.2
>
> The other store calls work great, but every other delete call fails with
> code 505.
>
> I’m seeing this behavior in both firefox and chrome.
>
>
>
> Here’s the log from firefox:
>
> [15:41:06.447] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-17acdf69-dc03-4847-a2fa-060865bf8f36[HTTP/1.1 200 OK 20ms]
>
> [15:41:06.399] no element found @
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-17acdf69-dc03-4847-a2fa-060865bf8f36:1
>
> [15:41:09.247] DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-081015b0-1f00-425f-a768-5646305d0b24[HTTP/1.1 505 HTTP Version Not Supported 5ms]
>
> [15:41:09.194] no element found @
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-081015b0-1f00-425f-a768-5646305d0b24:1
>
> [15:41:09.195] API request failed: '505'
>
>
>
> When I send the delete calls via curl, I get a 204 every time:
>
> curl -i -X DELETE
> http://localhost:8080/test/rest/annotations/ap.txt/id-ap.txt-d9dbeee7-d93b-4a76-a706-76860a585cea
>
> HTTP/1.1 204 No Content
>
> X-Powered-By: Servlet/3.1 JSP/2.3 (GlassFish Server Open Source Edition
> 4.0  Java/Oracle Corporation/1.7)
>
> Server: GlassFish Server Open Source Edition  4.0
>
> Date: Thu, 21 Nov 2013 22:11:05 GMT
>
>
>
> WTB a clue!
>
> -          Mike
>
>
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