[Talk-us] More-complex wiki pages are spitting up Lua errors

OSM Volunteer stevea steveaOSM at softworkers.com
Fri Sep 21 19:22:07 UTC 2018


What's up with OpenStreetMap's wiki?  I've noticed in the last couple of days that "more complex" wiki pages often generate Lua errors where they never have before (and nothing has changed in the content), in particular

Lua internal error: the interpreter has terminated with signal "24"

Try, for example, https://wiki.osm.org/wiki/California/Railroads where it gets about halfway through the page plenty fine, but somewhere around "Railtrails" it starts spitting up "red text" Lua errors for simple tasks like a BrowseRelation entry.  And yes, it's OK if the answer is "that wiki page is simply too large, break it up" as there is a proposal in the wiki itself to do just that.

My best guess is an overloaded wiki server.  As it isn't clear from munin (OSM's statistics / platform status) which server for wiki might be overloaded, I looked at https://wiki.osm.org/wiki/Platform_Status and discovered it is stormfly-01.openstreetmap.org hosted at Oregon State University's Open Source Laboratory (thank you for hosting, OSU!).

However, stats are reporting "green" although the Notes column remarks that the job queue counter continues growing.  It seems a "beefy enough" server (HP ProLiant DL360 G6, 2 x 6 cores of Xeon X5660s at 2.80 GHz, 72 GB RAM...) but maybe we're simply over-stressing it.  Yes, I do write a lot of wiki, but I'm fairly certain it isn't me!

Apologies if this should be directly addressed to our OSM Operations Team, I don't really know how to do that (and it isn't clear, so perhaps we want a "more clear" way to report minor errors like this).

Thanks for directing this to the right people if anybody reading this can do so,
SteveA


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