Hi, I have to "Xen Cluster Management With Ganeti On Debian Lenny." Once after I apt-get install ganeti and make adjustments dug a reboot, the system starts normally. Only the server under node1.example.com IP address 192.168.0.100 is not ping from other machines. The server is 192.168.0.100 but with the net on eth0. Has jeman a proposed solution? best regards loisl
Hi falco, Many thanks you for your help if I boot with the normal kernel, the network connection is OK ... I can not do anything under XEN times out with a ping. ifconfig: Code: x602:~# ifconfig eth0 Link encap:Ethernet Hardware Adresse 00:30:48:84:f0:94 inet Adresse:192.168.178.118 Bcast:192.168.178.255 Maske:255.255.255.0 inet6-Adresse: fe80::230:48ff:fe84:f094/64 Gültigkeitsbereich:Verbindung UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1 RX packets:170 errors:0 dropped:0 overruns:0 frame:0 TX packets:97 errors:0 dropped:0 overruns:0 carrier:0 Kollisionen:0 Sendewarteschlangenlänge:100 RX bytes:15130 (14.7 KiB) TX bytes:13038 (12.7 KiB) lo Link encap:Lokale Schleife inet Adresse:127.0.0.1 Maske:255.0.0.0 inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine UP LOOPBACK RUNNING MTU:16436 Metrik:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 Kollisionen:0 Sendewarteschlangenlänge:0 RX bytes:560 (560.0 B) TX bytes:560 (560.0 B) x602:~# route -nee: Code: x602:~# cat /root/route.txt Kernel-IP-Routentabelle Ziel Gateway Maske Flags Metric Ref Benutzer Iface MSS Fenster irtt 192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0 0 0 0.0.0.0 192.168.178.1 0.0.0.0 UG 0 0 0 eth0 0 0 0 x602:~# route -nee Kernel-IP-Routentabelle Ziel Gateway Maske Flags Metric Ref Benutzer Iface MSS Fenster irtt 192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0 0 0 0.0.0.0 192.168.178.1 0.0.0.0 UG 0 0 0 eth0 0 0 0 x602:~# /etc/network/interfaces: Code: # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface #allow-hotplug eth0 #iface eth0 inet dhcp auto eth0 iface eth0 inet static address 192.168.178.118 netmask 255.255.255.0 network 192.168.178.0 broadcast 192.168.178.255 gateway 192.168.178.1 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 192.168.178.1 dns-search saferwww.com /etc/hosts: Code: 127.0.0.1 localhost.localdomain localhost 192.168.178.118 x602.saferwww.com x602 192.168.178.119 x606.saferwww.com x606 192.168.178.120 clu1.saferwww.com clu1 192.168.178.121 ins1.saferwww.com ins1 # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts best regards loisl
Is there a firewall on node1? What's the output of Code: iptables -L ? Is it possible that there's another system with the IP 192.168.178.118 in your subnet?
Hi falco, I have found the cause ... it has nothing to do with the network! if I have the changes to the /boot/grub/menu.lst I get to run the network problem: Code: [...] ## Xen hypervisor options to use with the default Xen boot option # xenhopt=dom0_mem=256M ## Xen Linux kernel options to use with the default Xen boot option # xenkopt=console=tty0 nosmp [...] I'm using now STANDARD: The network is now OK! What does this have implications for? Code: [...] ## Xen hypervisor options to use with the default Xen boot option # xenhopt= ## Xen Linux kernel options to use with the default Xen boot option # xenkopt=console=tty0 nosmp [...] cat /proc/cpuinfo: Code: 602:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.316 cache size : 2048 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni cid cx16 lahf_lm bogomips : 7205.09 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.316 cache size : 2048 KB physical id : 3 siblings : 1 core id : 0 cpu cores : 1 apicid : 6 initial apicid : 6 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni cid cx16 lahf_lm bogomips : 7205.09 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.316 cache size : 2048 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni cid cx16 lahf_lm bogomips : 7205.09 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.316 cache size : 2048 KB physical id : 3 siblings : 1 core id : 0 cpu cores : 1 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni cid cx16 lahf_lm bogomips : 7205.09 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: THE NEXT PROBLEM: aptitude install drbd8-modules-`uname -r` drbd8-utils or better aptitude install drbd8-modules-2.6.26-2-xen-amd64 drbd8-utils echo drbd minor_count=64 >> /etc/modules modprobe drbd minor_count=64 602:~# modprobe drbd minor_count=64 FATAL: Module drbd not found. 602:~# Many thanks you for your help and best regards loisl
Code: Please run Code: [CODE]aptitude install drbd8-modules-`uname -r` drbd8-utils [/CODE] sorry is not would like load drbd8-modules-`uname -r` == drbd8-modules-2.6.26-1-xen-amd64 and not found !!! Many thanks you for your help and best regards loisl
I think you should upgrade your kernel to 2.6.26-2-xen-amd64 first - then the other command should work.
DRBD is working OK. Why do I only have 128MB of memory available?? Code: x602:/# gnt-node list Node DTotal DFree MTotal MNode MFree Pinst Sinst x602.saferwww.com 442600 442600 8191 7930 128 0 0 x606.saferwww.com 442600 442600 8191 7930 128 0 0 x602:/# Code: x602:/# gnt-instance add -t drbd -n x606.saferwww.com:x602.saferwww.com -o debootstrap -s 5g --swap-size 256 -m 256 --kernel /boot/vmlinuz-`uname -r` --ip 192.168.0.105 ins1.saferwww.com Failure: prerequisites not met for this operation: Not enough memory on node x606.saferwww.com for creating instance ins1.saferwww.com: needed 256 MiB, available 128 MiB x602:/# I test with 128MB and I get: Code: x602:/# gnt-instance add -t drbd -n x606.saferwww.com:x602.saferwww.com -o debootstrap -s 5g --swap-size 256 -m 128 --kernel /boot/vmlinuz-`uname -r` --ip 192.168.0.105 ins1.saferwww.com * creating instance disks... adding instance ins1.saferwww.com to cluster config - INFO: Waiting for instance ins1.saferwww.com to sync disks. - INFO: - device sda: 2.60% done, 767 estimated seconds remaining - INFO: - device sdb: 12.40% done, 41 estimated seconds remaining - INFO: - device sda: 7.30% done, 691 estimated seconds remaining - INFO: - device sda: 20.60% done, 332 estimated seconds remaining - INFO: - device sda: 33.90% done, 281 estimated seconds remaining - INFO: - device sda: 47.20% done, 227 estimated seconds remaining - INFO: - device sda: 60.50% done, 171 estimated seconds remaining - INFO: - device sda: 73.80% done, 287 estimated seconds remaining - INFO: - device sda: 87.10% done, 43 estimated seconds remaining - INFO: - device sda: 96.70% done, 14 estimated seconds remaining - INFO: - device sda: 100.00% done, 1 estimated seconds remaining - INFO: Instance ins1.saferwww.com's disks are in sync. creating os for instance ins1.saferwww.com on node x606.saferwww.com * running the instance OS create scripts... * starting instance... Failure: command execution error: Could not start instance x602:/# Many thanks you for your help and best regards loisl
I will absolutely ganeti, I have now started a new trial and the entire installed lenny 5.0.4 i386. Code: x602:~# uname -r 2.6.26-1-xen-686 x602:~# korrekt wie im howto Code: x602:~# cd /boot x602:/boot# ln -s vmlinuz-`uname -r` vmlinuz-2.6-xenU x602:/boot# ln -s initrd.img-`uname -r` initrd-2.6-xenU x602:/boot# aptitude install drbd8-modules-`uname -r` drbd8-utils Then come the error!! [...] Lese Task-Beschreibungen... Fertig Konnte kein Paket finden, dessen Name oder Beschreibung auf »drbd8-modules-2.6.26-1-xen-686« passt. Konnte kein Paket finden, dessen Name oder Beschreibung auf »drbd8-modules-2.6.26-1-xen-686« passt. Es werden keine Pakete installiert, aktualisiert oder entfernt. [...] Has anyone still a help to me Thank you and best regards loisl
Code: node1:~# gnt-instance add -t drbd -n node2.example.com:node1.example.com -o debootstrap -s 5g --swap-size 256 -m 64 --kernel /boot/vmlinuz-`uname -r` --ip 192.168.1.105 inst1.example.com * creating instance disks... Unhandled error in Deferred: Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/twisted/spread/pb.py", line 526, in expressionReceived method(*sexp[1:]) File "/usr/lib/python2.5/site-packages/twisted/spread/pb.py", line 895, in proto_answer d.callback(self.unserialize(netResult)) File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 243, in callback self._startRunCallbacks(result) File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 312, in _startRunCallbacks self._runCallbacks() --- <exception caught here> --- File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 328, in _runCallbacks self.result = callback(self.result, *args, **kw) File "/var/lib/python-support/python2.5/ganeti/rpc.py", line 94, in cb_done tb)) ganeti.errors.RemoteError: Remote procedure error calling blockdev_create on node1.example.com: Traceback (most recent call last): File "/usr/sbin/ganeti-noded", line 87, in perspectiveMessageReceived state = method(*args, **kw) File "/usr/sbin/ganeti-noded", line 104, in perspective_blockdev_create return backend.CreateBlockDevice(bdev, size, owner, on_primary, info) File "/var/lib/python-support/python2.5/ganeti/backend.py", line 839, in CreateBlockDevice " daemon logs" % errorstring) BlockDeviceError: Can't assemble device after creation, very unusual event - check the node daemon logs failed to create volume sda (<DRBD8(hosts=node2.example.com-node1.example.com, port=11002, configured as 192.168.1.100:11002 192.168.1.101:11002, backend=<LogicalVolume(/dev/xenvg/49cb0ae4-81ce-4874-9270-0c536744b499.sda_data, not visible,size=5120m)>, metadev=<LogicalVolume(/dev/xenvg/4ebc598d-0355-4ab5-af2d-9f5e1d16 0680.sda_meta, not visible, size=128m)>, visible as /dev/sda, size=5120m)>) on secondary node node1.example.com! Failure: command execution error: Device creation failed, reverting... I'm totally stuck, 3 time i try to make this cluster and everytime i'm stuck at the creation of the instance Oki Nevermind just found the problems Just need to install linux-image- 2.6.26-2-xen-686
totally awkward ... i'm having quite the some error msg - but i do already run on linux-image- 2.6.26-2-xen-686 ... instances created on node1 "can be created" but not started - instances with a mirror just break on creation ... greets
