ZoneMinder Forums

HEllo!

I have met strange behavoiur while viewing recorded events. While event view started, than it eventually stops (event-dependant). Say Event is 90 seconds. I click on the event and I can see only 5 second of the recording, than picture stills, BUT - the progress indicator still progresses!. When I click on the progress bar, picture may change, but anyway just once. Have to add that I can see such a behavoiur on a very very limited amount of the recorded events. Majority of them totally OK.
Any suggestion?

Regards,
Anton.

is this all browsers or just one?

Any browser. Mozilla, Firefox, Opera... But this applies to certain events only. If event behave so - it behaves always.

Check with still mode if images are recorded on disk.
Also check your log for buffers overrun, it can make events like that.

What kind of buffer? ZM buffer, Any hardware buffer?

you need to check you rlogs for errors, as you maybe seeing a side effect from another error that needs fixing first

cat /var/log/messages | grep WAR
and post the output to group

You are right. How to increase the buffer? I do not think slowing down capture or other should be done - since AVG CPU load on that PC always less than 2% and mostly less than 1%

(Load: 0.47 / Disk: 89%)



Sep 4 15:42:00 zm zmc_dvideo15[29914]: WAR [Buffer overrun at index 38, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 15:42:05 zm zmc_dvideo13[29894]: WAR [Buffer overrun at index 8, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 15:42:06 zm zmc_dvideo15[29914]: WAR [Buffer overrun at index 38, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 15:42:08 zm zmc_dvideo8[29922]: WAR [Buffer overrun at index 1, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 15:42:11 zm zmc_dvideo13[29894]: WAR [Buffer overrun at index 8, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 15:42:12 zm zmc_dvideo15[29914]: WAR [Buffer overrun at index 38, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 16:30:00 zm zmc_dvideo11[32272]: WAR [Buffer overrun at index 26, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 16:30:18 zm zmc_dvideo11[32272]: WAR [Buffer overrun at index 26, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 16:30:24 zm zmc_dvideo11[32272]: WAR [Buffer overrun at index 26, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 16:30:30 zm zmc_dvideo11[32272]: WAR [Buffer overrun at index 26, slow down capture, speed up analysis or increase ring buffer size]
Sep 4 16:30:36 zm zmc_dvideo11[32272]: WAR [Buffer overrun at index 26, slow down capture, speed up analysis or increase ring buffer size]

you can increse the buffers on the.... buffers tab on the monitor

Thanks I did not know what buffers meant.

Another question: while changing buffers from 40 to 100, if camera has resolution setup at 588x384 it becomes RED, while if I keep camera resolution 384x288 - it's OK. Any clue?

when it goes red i bet you have a load of
cannot shmget in your logs?
if so see the faq

100 * 588 * 384 * 3 =~ 64MB
Probably your shmall & shmmax values are too small.
Try this:
http://www.zoneminder.com/wiki/index.ph ... gs_mean.3F

From my experience I would tell you that if you make bigger buffer it doesn't make it much better. Probably hard disk is not fast enough.
When zmaudit is cleaning old events it consumes a lot of hard disk bandwidth, probably in that time you have a lot of lost frames.

I'll be working on script that will be run once a day(in night) that will replace zmaudit.

Thank you men! Now ZM behaviur became a little more clear to me
Appreciated so much!