search

glenrobson / SimpleAnnotationServer

A simple IIIF and Mirador compatible Annotation Server
Apache License 2.0
97 stars 28 forks source link

Performance issues due to jsonblob API calls ? #70

Closed dasch124 closed 4 years ago

dasch124 commented 4 years ago

Hi, we are evaluating Simple Annotation Server as the transcription backend for a digital edition project. In principle it works pretty well for us, however we experience some poor performance caused by Mirador continuously making calls to https://jsonblob.com (seemingly to persist its UI state). Is this anything you have experienced on you side as well? I found some old github discussions reg. this issue (https://github.com/ProjectMirador/mirador/issues/559), and it seems that it should have been solved in recent versions of Mirador – so I was wondering if you considered upgrading Mirador shipped with Simple Annotation Server? (or is there a show stopper of any kind?) Apart of this: Thank you for your work on this, it seems really promising!

glenrobson commented 4 years ago

Hi,

I think the version of Mirador included with SAS has that fix... Have you tried the following Mirador configuration:

saveSession: false

For a saveSession example in context you can see: https://github.com/glenrobson/SimpleAnnotationServer/blob/a00dfcbfd7315f43ccfbaa0e6f4adeafec470aaa/src/main/webapp/remote.html#L30. If you set this to false it shouldn't use jsonBlob any more.

It looks like there is a Mirador 2.7 which I could include but I am planning to move to Mirador 3 in the near future and at that point I'd like to remove the Mirador source code from the SAS repository although I hope to include a compiled version for the binary distribution.

Hope that helps.

Glen

dasch124 commented 4 years ago

I think the version of Mirador included with SAS has that fix... Have you tried the following Mirador configuration:

Great, thank you for the hint – we will try this out!

It looks like there is a Mirador 2.7 which I could include but I am planning to move to Mirador 3 in the near future and at that point I'd like to remove the Mirador source code from the SAS repository although I hope to include a compiled version for the binary distribution.

Seems like a sensible compromise!

glenrobson commented 4 years ago

I also found you had to set bookmark to false here:

https://github.com/glenrobson/SimpleAnnotationServer/blob/a00dfcbfd7315f43ccfbaa0e6f4adeafec470aaa/src/main/webapp/remote.html#L26

to get it to stop using jsonlob.