Hi Ken: I just looked at the code, Ganglia determines boottime based on btime of /proc/stat. If it fails to get the value of btime, it sets boottime to 0 (which is what you are observing).
uptime is derived from boottime. So, the question is, what is btime on your cluster2/cluster3 nodes' /proc/stat? Cheers, Bernard On Wed, Jul 8, 2009 at 12:22 PM, Ken Teague<[email protected]> wrote: > On 7/8/2009 11:16 AM, Bernard Li wrote: >> >> Hi Ken: > > Hi Bernard > >> What OS/arch are the nodes in cluster2/cluster3 running on? Is it >> different from cluster1? > > They're all running SUSE. cluster1 is on SUSE 10.1 and cluster2 and > cluster3 are running openSUSE 10.3. > > <snip> > master:~ # cat /etc/*release > SUSE LINUX 10.1 (X86-64) > VERSION = 10.1 > LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64" > > master2:~ # cat /etc/*release > openSUSE 10.3 (X86-64) > VERSION = 10.3 > LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64" > > master3:~ # cat /etc/*release > openSUSE 10.3 (X86-64) > VERSION = 10.3 > LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64" > <snip> > > Another difference is that cluster2 and cluster3 have an InfiniBand network > in addition to their Ethernet network... but I don't think that matters so > much. The routing tables appear fine and there is a multicast address in > there: > > <snip> > master:~ # route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 239.2.11.71 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 > 10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 > 10.2.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo > 0.0.0.0 10.2.1.254 0.0.0.0 UG 0 0 0 eth1 > > ... > > master3:~ # route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > 239.2.11.71 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 > 10.1.4.0 0.0.0.0 255.255.255.0 U 0 0 0 ib1 > 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo > 0.0.0.0 10.1.1.1 0.0.0.0 UG 0 0 0 eth0 > <snip> > > In the Ganglia web front-end, I do get a graphical representation of node > load and stuff, so it is able to report that. The only thing I've found > incorrect thus far is boottime and uptime which I think may be related to > each other. > ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
