@anonymous-matomo-user opened this Issue on August 31st 2010


I have noticed that after having the Piwik dashboard with the Live Visitors widget embedded open for a while, Firefox (and also Chrome) becomes really sluggish.

I've attached a heap dump (from Chrome) ... +235MB image data in quarter an hour is quite bad. I would assume that entries, that are no longer displayed in the widget are not destroyed correctly.

All the best


@anonymous-matomo-user commented on August 31st 2010


@sgiehl commented on August 31st 2010 Member

Well, there are 3 request sent every 8 seconds even if the further requests are still pending. That may cause the browser to overload with pending requests if server is a bit slow.

We should try to reduce the requests to only one if possible. Also new requests should only be send if latest requests are finished (or they should be aborted).

@robocoder commented on October 16th 2010 Contributor

(In [3253]) refs #1662 - add appendTo setting so we can attach spy to the #content div; previously it would attach to the <body> and continue to run in the background after the widget was no longer present

@mattab commented on November 24th 2010 Member

As mentioned by SteveG, Currently, the Live! plugin will start 3 more ajax requests every N seconds. If the previous requests are not done, this will cause some very large requests queuing, eventually crashing the browser and causing load on the Piwik server.

New ajax requests should not be started before the 3 previous ones have returned.

@robocoder commented on November 28th 2010 Contributor

Looking at spy.js, it looks like it guards against starting requests while there's an outstanding request.

I'm retargeting as this is appears to be a bug in jQuery ajax (see http://bugs.jquery.com/ticket/6242), not fixed in the latest version, jQuery 1.4.4.

@mattab commented on January 5th 2011 Member

Fixed in r3624

This Issue was closed on January 5th 2011
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