isilon keepidle setting change

Question

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'

sluetze · Accepted Answer

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

RobChang-Isilon · Answer

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?

JimK513 · Answer

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

JimK513 · Answer

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.

Isilon

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