BIND 10 #2934: xfrout session can be broken due to EAGAIN

[BIND 10 Development]

#2934: xfrout session can be broken due to EAGAIN
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            Reporter:  jinmei        |                        Owner:
                Type:  defect        |  jinmei
            Priority:  medium        |                       Status:
           Component:  xfrout        |  reviewing
            Keywords:                |                    Milestone:
           Sensitive:  0             |  Sprint-20130528
         Sub-Project:  DNS           |                   Resolution:
Estimated Difficulty:  2             |                 CVSS Scoring:
         Total Hours:  0             |              Defect Severity:  N/A
                                     |  Feature Depending on Ticket:
                                     |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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Changes (by vorner):

 * owner:  vorner => jinmei


Comment:

 Hello

 Replying to [comment:11 jinmei]:
 > Thanks for the review.
 >
 > Replying to [comment:10 vorner]:
 >
 > > The lettuce tests don't pass for me, for some kind of permission
 error:
 > > {{{
 > >       File
 "/var/tmp/bind10/bind10-3/tests/lettuce/features/terrain/loadzone.py",
 line 35, in run_loadzone
 > >         subprocess.PIPE, subprocess.PIPE)
 > >       File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__
 > >         errread, errwrite)
 > >       File "/usr/lib64/python2.7/subprocess.py", line 1308, in
 _execute_child
 > >         raise child_exception
 > >     OSError: [Errno 13] Permission denied
 > > }}}
 >
 > Hmm, I have no idea about the reason for that.  Other terrain script
 > should also use installed bindctl, and both cases are invoked in the
 > same way.  So if other tests such as bindctl_commands_feature works
 > I don't see why it doesn't work for loadzone.  Does your test
 > environment have b10-loadzone installed somewhere in the PATH with
 > executable permission?

 I don't know why it fails. I do have bind10 installed, but to a strange
 location. Neither b10-loadzone nor bindctl is in path. But I run it
 through the run_lettuce.sh script, it might be related. And maybe it might
 be related to this in setup_intree_bind10.sh:
 {{{
 PATH=/home/vorner/work/bind10/src/bin/bind10:/home/vorner/work/bind10/src/bin/bindctl:/home/vorner/work/bind10/src/bin/msgq:/home/vorner/work/bind10/src/bin/auth:/home/vorner/work/bind10/src/bin/resolver:/home/vorner/work/bind10/src/bin/cfgmgr:/home/vorner/work/bind10/src/bin/cmdctl:/home/vorner/work/bind10/src/bin/stats:/home/vorner/work/bind10/src/bin/xfrin:/home/vorner/work/bind10/src/bin/xfrout:/home/vorner/work/bind10/src/bin/zonemgr:/home/vorner/work/bind10/src/bin/ddns:/home/vorner/work/bind10/src/bin/dhcp6:/home/vorner/work/bind10/src/bin/sockcreator:$PATH
 export PATH
 }}}

 > I actually didn't try to lower the value, but I found I'd still need
 > at least 4 seconds to reproduce the original problem with the test.
 > Of course, it highly depends on local environment, so 5 seconds may be
 > too long for some, and might even be too short for others.  In any
 > case the problem shouldn't happen how long we delay it, and in that
 > sense any value is okay as long as it catches any future regression
 > like that.  For now, I've kept the same amount of delay with some
 > explanatory comments.
 -
 Is it so slow it actually keeps running and generating messages to the
 buffer for the whole 4 seconds?

-- 
Ticket URL: <http://bind10.isc.org/ticket/2934#comment:13>
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