Hi Stuart
Thanks for this explanation. 16MB is definitely a step in the right direction. However, in the future I'll need to transfer even bigger files. Is there a possibility for using resources for this in the future? It would be great if an action could upload a file to the resources server so the admin can download it from there. Kind regards Merlijn Sebrechts 2016-04-03 19:34 GMT-07:00 Stuart Bishop <[email protected]>: > On 4 April 2016 at 02:00, Merlijn Sebrechts <[email protected]> > wrote: > > Hi all > > > > > > The apache-kafka charm has an action "read-topic" that can return a lot > of > > data. Sometimes, this data is too long to be passed to `action-set` by > > commandline. You get the following error: > > > > Traceback (most recent call last): > > File "actions/read-topic", line 36, in <module> > > hookenv.action_set({'output': output}) > > File > > "/usr/local/lib/python2.7/dist-packages/charmhelpers/core/hookenv.py", > line > > 615, in action_set > > subprocess.check_call(cmd) > > File "/usr/lib/python2.7/subprocess.py", line 535, in check_call > > retcode = call(*popenargs, **kwargs) > > File "/usr/lib/python2.7/subprocess.py", line 522, in call > > return Popen(*popenargs, **kwargs).wait() > > File "/usr/lib/python2.7/subprocess.py", line 710, in __init__ > > errread, errwrite) > > File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child > > raise child_exception > > OSError: [Errno 7] Argument list too long > > > > > > Is there any way to pass a file to action-set? > > This bug affects many of the Juju tools causing charms to fail at > scale. https://bugs.launchpad.net/juju-core/+bug/1437366 > (relation-set) is the only one I know of that has been fixed. > https://bugs.launchpad.net/juju-core/+bug/1274460 (juju-log) is still > open. leader-set also fails now I think of it, but I haven't tripped > over that one (it limits scalability the way I'm using leadershp > settings, but I should be able to squeeze out several hundred units). > Maybe we can use the opportunity to fix quoting and encoding issues. > > I suspect if you can get past command line length limitations, I > suspect the next glass ceiling is a 16MB document size limit in > MongoDB (which is large enough to not need fixing?) > > -- > Stuart Bishop <[email protected]> >
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