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https://issues.apache.org/jira/browse/TS-2524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leif Hedstrom resolved TS-2524.
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Resolution: Duplicate
Lets close this in favor of TS-2523.
> Reevaluate default proxy.config.net.listen_backlog
> --------------------------------------------------
>
> Key: TS-2524
> URL: https://issues.apache.org/jira/browse/TS-2524
> Project: Traffic Server
> Issue Type: Bug
> Components: Network
> Reporter: David Carlin
>
> Leif mentioned in TS-2395 that he was having some problems related to
> proxy.config.net.listen_backlog.
> According to this article:
> http://blog.dubbelboer.com/2012/04/09/syn-cookies.html
> the kernel takes the backlog value, adds 1 and rounds up to the nearest power
> of 2. It sets max queue length to the log2 value of this number.
> This is why backlog of 511 results in max queue length of 9 (what you want)
> where as setting backlog to 512 expecting a max queue length of 9 you end up
> with 10.
> The above article mentions that nginx and apache set a default backlog of 511.
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