You are here

Airrouter HP - slows down over time - possible memory leak?

4 posts / 0 new
Last post
VE3RTJ
Airrouter HP - slows down over time - possible memory leak?
I've had an Airrouter HP running for a week now, with the beta firmware. It is configured as a gateway and as a tunnel server, with 10 tunnels enabled, 3 of which are active. There are about 40 nodes connected to this one, mostly over one of the tunnels.  I'm using the UBNT PoE supply.

Over the course of a couple of days, accessing the web interface becomes progressively slower. Last night, I couldn't navigate between pages. Eventually the tunnel I was on shut down, and while trying to SSH into the unit directly using a locally connected computer, it showed a 'bad gateway' message in very large text on the web interface, and then rebooted itself. After the reboot, it appeared to operate normally. Normally, when it slows down like that, I reboot it myself. This is the first time it's reboot on it's own. During these episodes where it's noticeably slow it also seems to be very slow at passing data to and from other nodes it's connected to. During this latest event I never got a chance to see the status page to see what the memory stats were. I'll watch that from now on.

I haven't noticed any other physical issues, such as high heat that could explain this kind of problem.

Cheers,

VE3ZX
k1ky
k1ky's picture
Not neccessarily just with AirRouter - but possible
I noticed some sluggishness last night, but on our system overall.  I have 8 tunnels inbound active and one outbound.  Are you running MeshChat?  I think this may be the "memory leak" as you call it. I've saw a bullet reboot last night at the station in Alaska that we are tunneled to.  I'd wait for the next Beta release and MeshChat update and see what happens.

Do you hae any Linksys devices on your system?  They seem to introduce some instability as well.  I'm trying to get all of them off of our system.. at least where they are performing any critical functions like Tunnel Servers and RF gateways.  Probably ok as an end user device for connecting in, but that may be questionable too..  I imagine that the "days are numbered" with regard to the old WRT54G units.  Since the AirRouter AR at around $36 and the HP around $57, it's pretty much a "no brainer" to finally phase out the old Linksys devices.

I haven't evaluated the thermal operations of these units, but I will pay closer attention to that.
 
VE3RTJ
Nope, Meschat isn't running
Nope, Meschat isn't running on this node, just the tunnels. There are a couple of Linksys boxes at the far end of a couple of the tunnels, but I haven't noticed any instability as they've connected/disconnected via the tunnels. My former tunnel server was a WRT54-GS, and it gave yeoman service, up nearly 200 days between reboots without a hiccup. Nodes at the end of the tunnels during that time were mostly NS2's, as they are now.

I'm eagerly awaiting Beta 2, but wanted to report this in case others are seeing similar behaviour. The UBNT stuff does seem to run warm, but the AR isn't any warmer than a pico or bullet.

73

 
AE6XE
AE6XE's picture
Support Data dump.   
Support Data dump.   

When the poor response conditions begin to occur, try to capture the support data, say every 6 to 8 hours as it degenerates--link at bottom of Administration page.  It's optional to be up at 3AM to do a capture :) .     Let's try to capture a trend before it becomes unresponsive.    

A possible related symptom is work to address lack of sufficient memory during "keep settings" upgrade scenarios.  We are addressing this (with time-to-release in mind) by shutting down services/resources before upgrade to have confidence this will work.    Let's hope this situation is something other than memory running wild issue.  If this is memory related, or even more memory related symptoms show up,  then we'll be motivated to get to the bottom of it now and extend the beta period...

Let's start by capturing the support data.   If more information is needed, we might try connecting a tunnel between us for direct access.

Joe AE6XE

 

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer