Bug 159918 - [jail] inter-jail communication failure
Summary: [jail] inter-jail communication failure
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 8.1-RELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-08-19 17:10 UTC by markhamb
Modified: 2017-12-31 22:32 UTC (History)
0 users

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Description markhamb 2011-08-19 17:10:10 UTC
We run a system with two jails operating different services in very
remote locations.  Each jail is assigned a unique routable IP address.

Intermittently, we lose power unexpectedly and backup batteries drain
before we can get the servers shut down cleanly.

Occasionally after the servers come back up, we cannot connect to the
services provided by jail2 from jail1.

The jails are quite minimal, containing the files necessary to run the
services and very little else.  Any suggestions to further diagnose this
problem would greatly be appreciated.

Fix: 

The solution to the problem is not always consistent.

Sometimes the solution is as simple as flushing the arp cache.

Sometimes the dance is a bit more complicated and involves unaliasing
the addresses from the interface, flushing the route and arp caches and
re-aliasing the interface IP. (and restarting the services)
How-To-Repeat: We cannot repeat this problem on the bench, but his happens in the field
every few months.
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2011-08-20 05:09:27 UTC
Responsible Changed
From-To: freebsd-bugs->freebsd-jail

Over to maintainer(s).
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 08:00:14 UTC
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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