Maybe this is related to the bug that has not been fixed. https://sourceforge.net/p/xcat/bugs/3173/
Do you see a lot of perl errors when it is installed, when you run something like export XCATBYPASS=y tabdump site. Lissa K. Valletta 8-3/B10 Poughkeepsie, NY 12601 (tie 293) 433-3102 From: Russell Jones <[email protected]> To: [email protected], Date: 03/28/2014 10:24 AM Subject: Re: [xcat-user] Restarting xcatd insanely slow with DHCP lease generation As a followup to this, we've resolved the problem by removing the perl-Socket6 module from the service nodes. Something within this module was conflicting with the perl-Socket-IO module and causing the nodes to read /etc/services 1576 times for each nodestatus update. Restarts are now only taking 2-3 minutes as opposed to 2 hours :) On 2/26/2014 1:36 PM, Jarrod B Johnson wrote: Mostly by passing in static IP via the scripts. It would have to reach the server using the dynamic script, but the resultant /proc/cmdline would have all the info needed to continue on as static once linux actually starts. So the firmware would need *a* functional network identity, the proxydhcp response would identify the client by mac and/or UUID to set *the* correct loader, kernel, initrd, and cmdline. The key there is to have a proxydhcp implementation that's much faster/better than ISC at having a configuration synced by xCAT. It's an awfully specific requirement that I'm at least spending some time exploring (promising preliminary results that could bring this sort of activity down to under 5 seconds instead of minutes). Inactive hide details for Russell Jones ---02/26/2014 11:05:19 AM---How would that work for diskless nodes that use xCAT's DHCPRussell Jones ---02/26/2014 11:05:19 AM---How would that work for diskless nodes that use xCAT's DHCP for booting? Would the xNBA image have From: Russell Jones <[email protected]> To: [email protected] Date: 02/26/2014 11:05 AM Subject: Re: [xcat-user] Restarting xcatd insanely slow with DHCP lease generation How would that work for diskless nodes that use xCAT's DHCP for booting? Would the xNBA image have some sort of special smarts where it just assigns the IP for the node when it sees that node is supposed to have a static address instead of relying on DHCP to do it? Having trouble figuring out how the node would get it's right IP if DHCP isn't giving it to it :-) On 2/25/2014 8:09 AM, Jarrod B Johnson wrote: How odd, in 2.3 we already were using omshell to do this stuff (it was one of the changes from 1.x to 2.0). Perhaps I can look at the complexity of stuff pushed in... That said, as a perhaps more further flung hypothetical future, what would people say to a scheme where dhcp does have to exist and serve some leases to facilitate PXE, but doesn't necessarily have to serve the 'right' addresses as the deployment ignores DHCP and goes to static if node is configured with a static address, instead of today where we push the static information into DHCP. It's a concept I'm exploring at the moment. The biggest downside I can think of is that you'd probably want to allocate a bigger dynamic range, but that could be outside of the 'production' subnet entirely (or use IPv6, which I also hope to assure can work given adequate firmware support). In such a world, dhcp could be either managed by xCAT or externally curated without care about PXE directives or just slapped down with little thought and a generous dynamic range. I was primarily thinking about cases where xCAT curated dhcp is inconvenient, but these cases could be sped up as well. Inactive hide details for Russell Jones ---02/25/2014 12:13:15 AM---Hi all, We are noticing that with a service node that is reRussell Jones ---02/25/2014 12:13:15 AM---Hi all, We are noticing that with a service node that is responsible for around From: Russell Jones <[email protected]> To: [email protected] Date: 02/25/2014 12:13 AM Subject: [xcat-user] Restarting xcatd insanely slow with DHCP lease generation Hi all, We are noticing that with a service node that is responsible for around 5000 nodes, restarting xcatd takes over an hour and a half due to how long it takes to generate the dhcp.leases file. This appears to be tied to how slow omapi is. In xCAT 2.3, it only took about 20 minutes to restart xcatd / regenerate the leases file. Is there a way of going back to the old method of handling DHCP leases, or a way of significantly speeding this up? ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user ------------------------------------------------------------------------------ _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user
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