[annotator-dev] annotateit.org unavailable-Internal Server Eroor 500

Tue Dec 8 12:23:59 UTC 2015

Hello everyone,

I am trying to get my annotations via the search API but server error 500 being thrown out every time. Has anyone experienced it yet?  Here is my URL http://annotateit.org/api/search? and it won't let me login to my account either to see my annotations . please let me know of au updates on the annotateit.org server. 
Many thanks
Arshad
Southampton Uni. 

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Subject: annotator-dev Digest, Vol 56, Issue 1

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Today's Topics:

   1. Re: Problem with 1.2.x performance on long documents
      (Greg Pendlebury)

----------------------------------------------------------------------

Message: 1
Date: Wed, 2 Dec 2015 13:05:11 +1100
From: Greg Pendlebury <greg.pendlebury at gmail.com>
To: Michael Widner <mikewidner at stanford.edu>
Cc: "annotator-dev at lists.okfn.org" <annotator-dev at lists.okfn.org>
Subject: Re: [annotator-dev] Problem with 1.2.x performance on long
	documents
Message-ID:
	<CA+A4HB2Lya4zEoYihdkNQYhQgD=yZm4CUFtcjryboOznrd70UA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

We found another major performance problem was in the '_setupDynamicStyle'
method (1.2.10), or 'injectDynamicStyle' against the current head. The selector which loads up every non-annotator node in the entire document in order to find the largest z-index.

I just wrapped an if test around options and let the user send an arbitrary z-index in with the options. In our particular use case this is fine and shaved a few seconds off the page load times.

Ta,
Greg

On 18 November 2015 at 05:19, Michael Widner <mikewidner at stanford.edu>
wrote:

> Thanks to a similar issue in the 2.x branch that's already been fixed 
> and Randall's guidance, I was able back-port the fix to the 1.2.x branch:
>
> https://github.com/openannotation/annotator/pull/577
>
> My testing shows that these changes made a massive difference in 
> performance.
>
> Best,
>
> Mike
>
> On 11/16/15 4:27 PM, Michael Widner wrote:
>
>> Hi all,
>>
>> I've discovered that when loading annotations on a long document (think:
>> a novel), the performance degrades so severely that it becomes 
>> unusable for many people. For me, the test I'm looking at takes 16 
>> full seconds to finish setting up annotations. The offending call 
>> happens at from Util.getTextNodes().
>>
>> The problem, if I'm understanding it correctly, is that it's having 
>> to walk the entire, very large DOM searching for all the text nodes. 
>> Has anyone else tried running Annotator on a long text? If so, did 
>> you find any work-arounds for the performance problem? Without 
>> rewriting the involved routines, the only solution I can think of is 
>> to only load annotations on the visible screen, but that's also a significant change.
>>
>> I'd very much appreciate any ideas or help.
>>
>> Thanks,
>>
>> Mike
>>
>>
>
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