On Tue, Jan 29, 2013 at 12:27 PM, Lucas Meneghel Rodrigues
<[email protected]> wrote:
> On 01/29/2013 04:44 PM, Vadim Bendebury wrote:
>>
>> guys, I need to write an autotest which would do something with the
>> DUT, but will not require any DUT activity, in fact the DUT could be
>> down while this test is running.
>
>
> Interesting, never faced such a situation before.
>
> For people not familiar with the terminology, DUT is an acronym for Device
> Under Test.
>
>
>> I can hack up some changes which prevent attempts to install on the
>> client and the test succeeds, but before going much further I am
>> wondering: is there maybe a suggested/approved way of doing it?
>
>
> I remember you can create hostless jobs with the autotest server, but I'm
> not sure if that's what you want. Is it possible to share some more details
> on what this test does?
>
yes, basically this test re-images the DUT's firmware. The firmware
rolls hot off the build farm, sometimes it is defective and the DUT is
bricked after reimaging. So, there is some special external hardware
which allows to take control of the DUT and program the firmware image
"externally".
"hostless" seems exactly the right name for this mode, are there some
docs or examples of this?
I concocted some changes to suppress attempts to connect/copy stuff to
the client (they kick in if client_down=True is added to
job.run_test() arguments in the control file) :
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
diff --git a/server/test.py b/server/test.py
index 221962d..ad625ad 100644
--- a/server/test.py
+++ b/server/test.py
@@ -55,6 +55,9 @@ job.record('GOOD', '', 'sysinfo.iteration.%s')
def install_autotest_and_run(func):
def wrapper(self, mytest):
+ if self.client_down:
+ return
+
host, at, outputdir = self._install()
try:
host.erase_dir_contents(outputdir)
@@ -69,9 +72,10 @@ def install_autotest_and_run(func):
class _sysinfo_logger(object):
- def __init__(self, job):
+ def __init__(self, job, client_down=False):
self.job = job
self.pickle = None
+ self.client_down = client_down
# for now support a single host
self.host = None
@@ -230,7 +234,8 @@ class _sysinfo_logger(object):
def runtest(job, url, tag, args, dargs):
if not dargs.pop('disable_sysinfo', False):
- logger = _sysinfo_logger(job)
+ logger = _sysinfo_logger(
+ job, client_down=dargs.get('client_down', False))
logging_args = [logger.before_hook, logger.after_hook,
logger.before_iteration_hook,
logger.after_iteration_hook]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
and it actually allows the test to run to completion, but then in the
end it throws this error:
13:01:13 INFO | Failed to copy /var/log/messages at startup: command
execution error
* Command:
/usr/bin/ssh -a -x -o StrictHostKeyChecking=no -o
UserKnownHostsFile=/dev/null -o BatchMode=yes -o ConnectTimeout=30 -o
ServerAliveInterval=180 -o ServerAliveCountMax=3 -o ConnectionAttempts=4
-o Protocol=2 -l root -p 22 192.168.1.4 "export LIBC_FATAL_STDERR_=1; rm
-f /var/tmp/messages.autotest_start"
Exit status: 255
Duration: 12.0129139423
stderr:
ssh: connect to host 192.168.1.4 port 22: No route to host
which I am sure could also be avoided, but I don't want to reinvent
another wheel :)
cheers,
/vb
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