8 Krypton

isilon keepidle setting change

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I pulled this information from an older discussion.

I'd like to change the keepidle setting on my cluster but want to know what impact is required to change/set the value? Are node reboots required or services restart processes?

Thanks.

The current setting can be reviewed with the following command


isi_for_array -s 'sysctl net.inet.tcp.keepidle'

To set the value --  isi_sysctl_cluster net.inet.tcp.keepidle=300000  (5 minutes, value in milliseconds)

The next sysctl that would be of interest is the ping interval with is currently set at 75000 (75 Seconds).  The cluster will send 8 pings at a 75 second interval resulting in a 5 minute window for the client to respond.

To view the setting -- isi_for_array -s 'sysctl net.inet.tcp.keepintvl'

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8 Krypton

Re: isilon keepidle setting change

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You don't have to reboot or anything. The setting is in effect right away for every NEW connection.

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8 Krypton

Re: isilon keepidle setting change

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You don't have to reboot or anything. The setting is in effect right away for every NEW connection.

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8 Krypton

Re: isilon keepidle setting change

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Hi Jim,

What are you trying to accomplish with this tweak?  Is there a specific behavior you are trying to get out of the cluster?

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8 Krypton

Re: isilon keepidle setting change

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we made a fundamental networking change in our environment by adding in palo alto firewalls between the users and the isilon. The timeout values for traffic is 1 hour on the palo altos and 2 hours on the isilon and I believe it's causing us issues.

we want to drop the keepalive down to, say 30 minutes.

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8 Krypton

Re: isilon keepidle setting change

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sluetze, thanks. that's the answer we were hoping for.

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