Le 21/09/2016 à 17:43, Yaniv Kaul a écrit :


On Wed, Sep 21, 2016 at 5:58 PM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 21/09/2016 à 16:28, Yaniv Kaul a écrit :


On Wed, Sep 21, 2016 at 5:19 PM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 21/09/2016 à 16:11, Yaniv Kaul a écrit :


On Wed, Sep 21, 2016 at 5:07 PM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 21/09/2016 à 15:49, Yaniv Kaul a écrit :
Adding the Lago devel mailing list.

The download is the reposync phase - which seems to be OK, but then the connection means that for some reason Lago is not serving those RPMs (8585 is the port it should be listening to).
Can you share some logs?

http://pastebin.com/nsDFZhuE


Perhaps something with the Firewall?

I had no idea whether to keep it or not.
I already disabled selinux after having realized it lead to a read only root file system.

About the issue above, no being able to reach some random port would indeed be caused by the firewall, so I'll give it a try.

During RPM installation it should add the relevant rule to the firewalld, btw:
if which firewall-cmd &>/dev/null; then
    firewall-cmd --reload
    firewall-cmd --permanent --zone=public --add-service=ovirtlago
    firewall-cmd --reload
fi

I gave it many tries and only when manually adding your recommended firewall-cmd command, I was able to go one step further in the run.

Next issue is there :

@ Start Prefix:
  # Start nets:
    * Create network lago_basic_suite_3_6_lago:
    * Create network lago_basic_suite_3_6_lago: Success (in 0:00:06)
  # Start nets: Success (in 0:00:06)
  # Start vms:
    * Starting VM lago_basic_suite_3_6_engine:
libvirt: QEMU Driver error : internal error: process exited while connecting to monitor: 2016-09-21T14:50:12.757362Z qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
    * Starting VM lago_basic_suite_3_6_engine: ERROR (in 0:00:02)
  # Start vms: ERROR (in 0:00:02)
  # Destroy network lago_basic_suite_3_6_lago:
  # Destroy network lago_basic_suite_3_6_lago: ERROR (in 0:00:00)
@ Start Prefix: ERROR (in 0:00:09)
Error occured, aborting
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 691, in main
    cli_plugins[args.verb].do_run(args)
  File "/usr/lib/python2.7/site-packages/lago/plugins/cli.py", line 180, in do_run
    self._do_run(**vars(args))
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 488, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 499, in wrapper
    return func(*args, prefix=prefix, **kwargs)
  File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 255, in do_start
    prefix.start(vm_names=vm_names)
  File "/usr/lib/python2.7/site-packages/lago/prefix.py", line 958, in start
    self.virt_env.start(vm_names=vm_names)
  File "/usr/lib/python2.7/site-packages/lago/virt.py", line 175, in start
    vm.start()
  File "/usr/lib/python2.7/site-packages/lago/plugins/vm.py", line 247, in start
    return self.provider.start(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lago/vm.py", line 93, in start
    self.libvirt_con.createXML(self._libvirt_xml())
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3727, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error: process exited while connecting to monitor: 2016-09-21T14:50:12.757362Z qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory


So here is the time I have to admit I'm trying to run all this on a *very* humble machine, with only 4Gb of RAM, that may sound ridiculous but I am prepared to wait for days between each command return and mouse click, as long as everything is doing its job (slowly).

Not being able to allocate memory is blocking me from even testing Lago.

Wouldn't be somewhere I could tweak some limits?

Of course, but I don't such low value would suffice. You can change the template - basic_suite_3.6/LagoInitFile.in


Thank you Nadav for your answer about networking.
Thank you Yaniv as always helpful, because your hint worked : I reduced the values of memory settings in the Lago init file and ran everything from scratch : at first, it got stuck for hours with no disk usage progress (as adviced in the FAQ).
So I stopped everything, and ran a cleanup, then deleted the /var/lib/lago/somewhere/rpm/cache/blahblah, and also rm -fr the deployment dir.
Then ran again, and it seems that everything until the tests went OK.

Now in my processes, I can see qemu processes running the engine, the host0, host1 and storage.
virsh # list
 Id    Name                           State
----------------------------------------------------
 1     f8b91b68-lago_basic_suite_3_6_engine running
 2     f8b91b68-lago_basic_suite_3_6_host1 running
 3     f8b91b68-lago_basic_suite_3_6_host0 running
 4     f8b91b68-lago_basic_suite_3_6_storage running


But the first test (engine initialization) is failing with an issue related to paramiko (see below).
Apart from googling it, I had no idea what paramiko was.
Anyway, as it leads to test 001 failing, then eventually complete stop, I have to know how to correct this.
I already checked that I have the paramiko RPM installed.

+ env_run_test /data/lago/ovirt-system-tests/basic_suite_3.6/test-scenarios/001_initialize_engine.py                                                                                                                             [0/1196]
+ echo '#########################'
#########################
+ local res=0
+ cd /data/lago/ovirt-system-tests/deployment-basic_suite_3.6
+ lago ovirt runtest /data/lago/ovirt-system-tests/basic_suite_3.6/test-scenarios/001_initialize_engine.py
current session does not belong to lago group.
@ Run test: 001_initialize_engine.py:
nose.config: INFO: Ignoring files matching ['^\\.', '^_', '^setup\\.py$']
  # 001_initialize_engine.test_initialize_engine:
    * Copy /data/lago/ovirt-system-tests/basic_suite_3.6/engine-answer-file.conf to lago_basic_suite_3_6_engine:/tmp/answer-file:
    * Copy /data/lago/ovirt-system-tests/basic_suite_3.6/engine-answer-file.conf to lago_basic_suite_3_6_engine:/tmp/answer-file: Success (in 0:00:01)
    * Collect artifacts:
No handlers could be found for logger "paramiko.transport"
      - [Thread-8] lago_basic_suite_3_6_host0: ERROR (in 0:01:04)
    * Collect artifacts: ERROR (in 0:01:04)
  # 001_initialize_engine.test_initialize_engine: ERROR (in 0:01:19)
  # Results located at /data/lago/ovirt-system-tests/deployment-basic_suite_3.6/default/nosetests-001_initialize_engine.py.xml
@ Run test: 001_initialize_engine.py: ERROR (in 0:01:21)
Error occured, aborting
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ovirtlago/cmd.py", line 258, in do_run
    self.cli_plugins[args.ovirtverb].do_run(args)
  File "/usr/lib/python2.7/site-packages/lago/plugins/cli.py", line 180, in do_run
    self._do_run(**vars(args))
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 488, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lago/utils.py", line 499, in wrapper
    return func(*args, prefix=prefix, **kwargs)
  File "/usr/lib/python2.7/site-packages/ovirtlago/cmd.py", line 102, in do_ovirt_runtest
    raise RuntimeError('Some tests failed')
RuntimeError: Some tests failed
+ res=1
+ cd -
/data/lago/ovirt-system-tests
+ return 1
+ failed=true
+ env_collect /data/lago/ovirt-system-tests/test_logs/basic_suite_3.6/post-001_initialize_engine.py
+ local tests_out_dir=/data/lago/ovirt-system-tests/test_logs/basic_suite_3.6/post-001_initialize_engine.py
+ echo '#########################'
#########################
+ [[ -e /data/lago/ovirt-system-tests/test_logs/basic_suite_3.6 ]]
+ mkdir -p /data/lago/ovirt-system-tests/test_logs/basic_suite_3.6
+ cd /data/lago/ovirt-system-tests/deployment-basic_suite_3.6/current
+ lago ovirt collect --output /data/lago/ovirt-system-tests/test_logs/basic_suite_3.6/post-001_initialize_engine.py
current session does not belong to lago group.
@ Collect artifacts:
  # [Thread-1] lago_basic_suite_3_6_engine:
  # [Thread-2] lago_basic_suite_3_6_host1:
  # [Thread-3] lago_basic_suite_3_6_host0:
  # [Thread-4] lago_basic_suite_3_6_storage:
  # [Thread-1] lago_basic_suite_3_6_engine: Success (in 0:00:22)
  # [Thread-4] lago_basic_suite_3_6_storage: Success (in 0:00:23)
  # [Thread-2] lago_basic_suite_3_6_host1: Success (in 0:00:23)
  # [Thread-3] lago_basic_suite_3_6_host0: Success (in 0:00:23)
@ Collect artifacts: Success (in 0:00:24)
+ cp -a logs /data/lago/ovirt-system-tests/test_logs/basic_suite_3.6/post-001_initialize_engine.py/lago_logs
+ cd -
/data/lago/ovirt-system-tests
+ true
+ echo '@@@@ ERROR: Failed running /data/lago/ovirt-system-tests/basic_suite_3.6/test-scenarios/001_initialize_engine.py'
@@@@ ERROR: Failed running /data/lago/ovirt-system-tests/basic_suite_3.6/test-scenarios/001_initialize_engine.py
+ return 1

Many stackoverflow answers seem to say that the fix is easy, but I have no clue where to put these settings?

http://stackoverflow.com/questions/15437700/no-handlers-could-be-found-for-logger-paramiko-transport

-- 
Nicolas ECARNOT