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Martin Hope
nuecaster
Asked: 2011-07-19 16:27:08 +0800 CST
  • 1

Ok this may seem like kind of a newbie question, but here goes.

I'm using Amazon Web Services and created a Elastic Load Balancer for 2 instances that are identical EBS EC2 instances. We'll call these Server A and Server B. When a request for a file on the main load balancer, I'm assuming it balances the load between and pulls the file from either Server A or Server B. Now if I want to make a change to one of the site files on Server A. Do I then have to make the same change to Server B's file?

load-balancing amazon-ec2 cluster
Martin Hope
nuecaster
Asked: 2011-06-30 14:12:51 +0800 CST
  • 0

I'm kinda new to MongoDB. I've setup a single mongo server on an Amazon m2.xlarge EC2 instance. I've setup a RAID10 with 4 EBS volumes for storage. Seems to work great for collecting data. How do I setup a replica set? Do I have to manually create a whole new instance and RAID10 for this? What are the mechanics of this?.. with minimal or no downtime?

amazon-ec2 database mongodb
Martin Hope
nuecaster
Asked: 2011-05-25 17:54:40 +0800 CST
  • 3

So I've been bouncing between CDN's trying to optimize our serving solution. We're serving short video clips into our code that display either an html5 video element (MP4 or OGG) or a flash swf (FLV) as a fallback.

We're using Amazon S3 for the storage of these media files and CloudFront as our content delivery network. We've been experimenting with the flash fallback using CloudFront's Flash Media Server distribution and we're streaming the FLV into the Flash fallback. This works great :)

However, I'd like to accomplish the same setup (Origin > Streaming CDN > Client) with the MP4 and OGG files into the HTML5 placement. To do this, I need to stream them over RTP or RTSP, rather than CloudFront & FMS's RTMP.

So far I haven't had much luck finding a CDN that supports RTSP streams. Is there a way to use CloudFront's Streaming Server and somehow convert the stream protocol into RTSP using the mp4 and ogg as the source files?

(I should also note that price is a fairly big factor here. The project is sort of dependent on the price point on a per TB/GB/MB level.)

streaming video cdn rtsp rtmp
Martin Hope
nuecaster
Asked: 2011-05-18 12:17:05 +0800 CST
  • 0

Help!

Here's the scenario:

I'm hosting and serving display ads. These consist of some media creatives and some javascript files to assemble and display the ad. The files are hosted on a CDN.

We did a small test run with 1 ad over the weekend. It burned about 10,000 impressions. When reviewing my CDN logs, I notice that one single IP, was requesting a single media file, on average about 2-3 times per second to the tune of over 1.6 million hits on the file. All in within a 24 hour period!

Now this is a big problem because I'm charged for bandwidth, and currently we've transferred over a TB for no apparent reason.

Why is this happening?? What can I do to prevent anything from accessing files directly like this? They should only be accessed when the javascript calls them into an ad placement.

Lines from CDN log:

#Fields: timestamp time-taken c-ip filesize s-ip s-port sc-status sc-bytes cs-method cs-uri-stem - rs-duration rs-bytes c-referrer c-user-agent customer-id x-ec_custom-1
1305405902 116 XX.XX.XX.XX 1281559 XX.XX.XX.XX 80 TCP_HIT/200 327990 GET http://XXXXXXXXXX.ogg - 0 557 "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 ( .NET CLR 3.5.30729)" 10629 "-" 
1305405902 89 XX.XX.XX.XX 1281559 XX.XX.XX.XX 80 TCP_HIT/200 655670 GET http://XXXXXXXXXX.ogg - 0 557 "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 ( .NET CLR 3.5.30729)" 10629 "-"
1305405902 86 XX.XX.XX.XX 1281559 XX.XX.XX.XX 80 TCP_HIT/200 453386 GET http://XXXXXXXXXX.ogg - 0 557 "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 ( .NET CLR 3.5.30729)" 10629 "-"
1305405902 7 XX.XX.XX.XX 1281559 XX.XX.XX.XX 80 TCP_HIT/200 1281869 GET http://XXXXXXXXXX.ogg - 0 557 "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 ( .NET CLR 3.5.30729)" 10629 "-"
1305405903 86 XX.XX.XX.XX 1281559 XX.XX.XX.XX 80 TCP_HIT/200 786742 GET http://XXXXXXXXXX.ogg - 0 557 "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 ( .NET CLR 3.5.30729)" 10629 "-"
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