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| Traffic- how much is too much https://forum.linode.com/viewtopic.php?f=19&t=9210 |
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| Author: | bryantrv [ Tue Jul 31, 2012 2:30 pm ] |
| Post subject: | Traffic- how much is too much |
Every now and them I get a huge spike in the traffic on my Linode- I'm not sure where it is coming from (or going to), or even if this is heavy traffic. Here's the dashboard graph:  .It looks like it is hitting a brick wall limit of around 47MB/sec (which is pretty fast, if you ask me). Is that a bunch of bandwidth? FWIW- I rebooted the Linode in the middle of this (at the first dip)- I don't know what my server was serving, but even though it was a bit slow, it kept going. |
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| Author: | purrdeta [ Tue Jul 31, 2012 2:39 pm ] |
| Post subject: | Re: Traffic- how much is too much |
The linode by default is capped at 50mbps. With technical justification, you can get that raised with a support ticket. That is a lot of bandwidth, especially if you don't know why. You'll have to figure out what it is doing and why before we can tell you if that is a lot. If it is doing what it is supposed to be doing, it's sort of up to you to decide what is "too much" |
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| Author: | Guspaz [ Tue Jul 31, 2012 3:42 pm ] |
| Post subject: | Re: Traffic- how much is too much |
You used up ~86GB in the past day, which if you're on the smallest sized linode, is almost half your monthly allotment in one day. A tool like iftop while the problem is happening can tell you what connection is using the bandwidth, or what process/port. Otherwise, check your web server log files. |
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| Author: | bryantrv [ Tue Jul 31, 2012 4:42 pm ] |
| Post subject: | Re: Traffic- how much is too much |
For the life of me I cannot figure out where that all went, though I'm not great at reading log files. It may have been a misbehaving bot, but Google analytice knows nothing of it, nor does Cloudflare. |
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| Author: | Ashiyah [ Wed Aug 01, 2012 2:55 am ] |
| Post subject: | Re: Traffic- how much is too much |
I'd suggest starting out by running a: Code: du -sh /home/* (or wherever you store web files) to see if there are any especially large files capable of using large amounts of bandwidth quickly. Then search through the access_log files in /var/log/httpd/. If you aren't logging, the best you can do it at this point is start (http://httpd.apache.org/docs/1.3/logs.html). If it's a sudden spike, it's likely not just simply an organic traffic surge for low-volume content that would just disappear the next day. |
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