PHP error Weathermap version 0.98a

[kahfiehudson]

ubuntu server 16.04.4 LTS
php 7.0
cacti 0.8.8f
weathermaps 0.98a

Hi i just wanna ask, my php error like that. I think this problem caused weathermaps. When this happen, all my graph is broken around 10-15 minutes.

/var/log/syslog
Nov 26 11:05:01 mrtg CRON[58292]: (www-data) CMD (php --define suhosin.memory_limit=512M /usr/share/cacti/site/poller.php 2>&1 >/dev/null | if [ -f /usr/bin/ts ] ; then ts ; else tee ; fi >> /var/log/cacti/poller-error.log)

/var/log/cacti/poller-error.log
libpng warning: iCCP: CRC error
libpng warning: iCCP: CRC error
libpng warning: iCCP: CRC error
libpng warning: iCCP: CRC error
libpng warning: iCCP: CRC error
libpng warning: iCCP: CRC error


Any idea to fix this?

[Howie]

Iccp is a colour management feature of PNG, do that would be an error while reading a PNG. I guess one of your icons or background images might be corrupted.

I can't see how this would stop graphs being drawn. It might break some maps, if it's a fatal error, but that's all... Definitely can't see how it would *temporarily* break things!

I'm just thinking if there's a convenient way to verify the image files... I'll update later.

[kahfiehudson]

Iccp is a colour management feature of PNG, do that would be an error while reading a PNG. I guess one of your icons or background images might be corrupted.

I can't see how this would stop graphs being drawn. It might break some maps, if it's a fatal error, but that's all... Definitely can't see how it would *temporarily* break things!

I'm just thinking if there's a convenient way to verify the image files... I'll update later.

So, according to you, my graph broken is not from that error?
Do you have idea to check my graph was broken?
Because i've checked on the log, it looks normally.
Btw thank you for your explanation.

[Howie]

After the 10-15 minutes, do you have a gap in your map?

Usually this kind of thing will show errors in the cacti.log - there's a good troubleshooting guide as part of the Cacti manual for it.

(for the PNG error, I have a tool on my ubuntu system called pngcheck - pngcheck weathermap/images/*.png checked all the images in my images directory. It's in the pngcheck ubuntu package. There's also pngfix, which might repair damaged files.)

[netniV]

(for the PNG error, I have a tool on my ubuntu system called pngcheck - pngcheck weathermap/images/*.png checked all the images in my images directory. It's in the pngcheck ubuntu package. There's also pngfix, which might repair damaged files.)

You learn something new every day

[kahfiehudson]

After the 10-15 minutes, do you have a gap in your map?

Usually this kind of thing will show errors in the cacti.log - there's a good troubleshooting guide as part of the Cacti manual for it.

(for the PNG error, I have a tool on my ubuntu system called pngcheck - pngcheck weathermap/images/*.png checked all the images in my images directory. It's in the pngcheck ubuntu package. There's also pngfix, which might repair damaged files.)

do you mean gap in my weathermaps?
I've attached broken graph image and cacti.log when the time graph is broken
I think on my cacti.log is normal

(for the PNG error, I have a tool on my ubuntu system called pngcheck - pngcheck weathermap/images/*.png checked all the images in my images directory. It's in the pngcheck ubuntu package. There's also pngfix, which might repair damaged files.)

You learn something new every day

yes, learn something new every day

[Howie]

Still can't think of anything in Weathermap that would cause this.

Data for graphs is collected before maps are updated.

Definitely not when it fixes itself after 20 minutes

(Actually - next time you get one of these gaps, check if the weathermap map files are still updated during that time. Look at the file datestamps in the weathermap/output directory. If you can catch it while it is happening.)

[kahfiehudson]

Hi,

Thank you for your support.
This issue is fixed now.