Boost causes rrdtool errors in Apache error log

[bldewolf]

I recently deployed a rather large (84k data sources) cacti deployment. I'm using spine and Boost with on-demand updating and png caching (no boost server). So far it's been going well, got everything tweaked and working fine with just me using it, but now that I have users poking at the website, I've noticed lines like these show up in the apache error log:

ERROR: illegal attempt to update using time 1210714310 when last update time is 1210714310 (minimum one second step)
ERROR: illegal attempt to update using time 1210717899 when last update time is 1210717899 (minimum one second step)
ERROR: illegal attempt to update using time 1210718499 when last update time is 1210718499 (minimum one second step)
ERROR: expected 2 data source readings (got 1) from 1210716938:276547
ERROR: expected 4 data source readings (got 1) from 1210716938:0
ERROR: expected 4 data source readings (got 3) from 1210716938:0:0:0

I've seen errors like these before, and they're coming from rrdtool. It doesn't happen every time someone pokes at the webserver, unfortunately, so I think it may be due to triggering the on-demand updater for a single graph multiple times. Has anyone seen this before? Got any fixes? I'll probably go poke at the source of the on-demand updater, but it's nice when someone else has solved the problem already.

[TheWitness]

Are you using the SVN version?

[bldewolf]

Yep.

[TheWitness]

This is a problem. I have had no time to spend on addressing corner cases. When you goto the Updates plugin page, what version does it show for boost?

TheWitness

[bldewolf]

It doesn't show up in my plugin manager (I have it listed in global.php). It's svn revision 243, if that's what you're looking for...

[Marcel]

I'm with the same problem, Boost revision 263, cacti 0.8.7b, PIA2.0, ~33k DS