Render requests with format=svg hang when running under mod_wsgi

[Michael Leinartas]

This happens under mod_wsgi but not under gunicorn or uWSGI.

A clue from dannyla from the answers thread:

I just ran into this problem, I enabled a quick fix to get this working on my system.

/webapp/graphite/render/glyph.py: line 479

 # LP199778 - svgData = svgData.replace('</g><g data-header','<g data-header',1) + "</g>"
 svgData = svgData.replace('</g><g data-header','<g data-header',1)

The change that i made was just to remove ' + </g>' from the 479

[Thomas (thomasfalkenberg)]

This workaround did not work for me, still the same behavior.

[Cody Stevens (cody-stevens)]

Just to add some more "hints". I was experiencing this same hanging behavior. I started digging into the code and troubleshooting using the workaround mentioned above. That was producing svg output that the browser would render up until the error. With it partially working I put the original code back in just out of curiousity and now it is working just fine. It made me feel like I was taking crazy pills. I saw in some other bug submissions that for some users if they let it time out subsequent requests would work. Not sure if that is what I am seeing here or not but thought it may be useful information.

[Michael Leinartas (mleinartas)]

Migrated to Github: https://github.com/graphite-project/graphite-web/issues/179