It looks like the problem has not happened again in a while. I've had
an instance running for almost a month now, and the IP Address has not
been lost:
$ euca-describe-instances
RESERVATION r-44510791 admin default
INSTANCEi-4A870825 emi-230B11AE172.23.46.78
Joseph: how is the cluster controller main IP address assigned ? Is it
DHCP ? If yes, could there have been an issue at the end of the DHCP
lease (IP address change after a multiple of 3 days ??)
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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** Changed in: eucalyptus
Status: New = Invalid
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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** Also affects: eucalyptus
Importance: Undecided
Status: New
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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Downgrading to Medium since it cannot be easily reproduced
** Changed in: eucalyptus (Ubuntu)
Importance: High = Medium
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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One other thing to note. The following is the output of euca-describe-
instances from this morning. Before the issue was reproduced:
$ euca-describe-instances
RESERVATION r-39C7074C admin default
INSTANCEi-46910829 emi-230B11AE172.23.46.78172.19.1.2
running
Looks like I just reproduced it after seven days:
$ euca-describe-instances
RESERVATION r-39C7074C admin default
INSTANCEi-46910829 emi-230B11AE172.19.1.2 172.19.1.2
running mykey 0 c1.medium 1970-01-01T00:00:00.813Z
ubuntucluster1
I restarted my instance on Monday after the public IP address changed.
The initial issue happened after three days. However, it's now been
four days, and I have not been able to reproduce it again. It now seems
there is not a pre-determined amount of time before the IP address
expires.
I'll
Looks like I just saw this happen here...
Every 5.0s: euca-describe-instances
Thu Oct 22 10:24:21 2009
RESERVATION r-46C30944 admin default
INSTANCEi-45EE07E9 emi-E60E17EC0.0.0.0 0.0.0.0 running
mykey 0 m1.small1970-01-01T00:00:
00.762Z
Dustin: sounds like yours is slightly different, you end up with 0.0.0.0
rather than the private IP, and you hit it after one hour, rather than 3
days. I'd suggest opening a separate bug, if you can reproduce it. We'll
merge the bugs if they happen to have the same root cause.
Keeping this one
Assigning to nurmi per:
nurmi 16:42:24 ttx: We're going to be looking into 455625 asap
** Changed in: eucalyptus (Ubuntu)
Assignee: (unassigned) = Daniel Nurmi (nurmi)
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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Possibly caused by bug 454405?
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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Maybe some issue with the DHCP lease not being renewed. Takes some time to
reproduce, unfortunately...
Joseph: would there be anything in the logs (host side or guest side) about
this ?
** Changed in: eucalyptus (Ubuntu)
Importance: Undecided = High
** Changed in: eucalyptus (Ubuntu)
I'm reviewing the logs now to see if there are additional details.
I think the max-lease-time is running out which is defined in
/etc/dhcp3/dhcpd.conf. The two configurable settings are:
default-lease-time 600;
max-lease-time 7200;
7200 is three days, which is the right about when my public IP
IIUC the public IP address is not handed by DHCP but by Eucalyptus
itself, from a pool defined at VNET_PUBLICIPS. That doesn't mean there
isn't a timeout involved in that mechanism as well.
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Eucalyptus Loses Public IP Address
https://bugs.launchpad.net/bugs/455625
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