Alright. By differential comparing to successfull postgres-command
sudo-becomes. It looks like the salient difference is that `Copy
configuration archive to storage` is missing become:true. Testing now.
The similar postgres commands have become:true while this one does not.
~Kyle
On Tue, Apr 3, 2018 at 1:19 PM, Simone Tiraboschi <stira...@redhat.com>
wrote:
>
>
> On Tue, Apr 3, 2018 at 5:21 PM, RabidCicada <rabidcic...@gmail.com> wrote:
>
>> I've attached a full debug packet below. I include the log file from
>> ovirt-hosted-engine-setup. I include relevant cmd line info. I include
>> info from the command line where epdb has a breakpoint in playbook.py from
>> ansible itself. I also include info from commands I ran after it failed.
>> I also include attached the ferried over script in /root/.ansible/tmp that
>> is run.
>>
>>
>> *Output on cmd line:*
>> [ INFO ] TASK [Copy configuration archive to storage]
>> [ ERROR ] fatal: [localhost]: FAILED! => {
>> "changed": true,
>> "cmd": [
>> "dd",
>> "bs=20480",
>> "count=1",
>> "oflag=direct",
>> "if=/var/tmp/localvmbCDQIR/5e
>> f881f5-c992-48d2-b969-a0b6156bdf7c",
>> "of=/rhev/data-center/mnt/nod
>> e.local:_srv_data/81292f3f-11d3-4e38-9afa-62e133aa8017/image
>> s/c5510e77-1ee0-479c-b6cf-24c179313a45/5ef881f5-c992-48d2-
>> b969-a0b6156bdf7c"
>> ],
>> "delta": "0:00:00.004336",
>> "end": "2018-04-03 15:01:55.581823",
>> "invocation": {
>> "module_args": {
>> "_raw_params": "dd bs=20480 count=1 oflag=direct
>> if=\"/var/tmp/localvmbCDQIR/5ef881f5-c992-48d2-b969-a0b6156bdf7c\"
>> of=\"/rhev/data-center/mnt/node.local:_srv_data/81292f3f-11d
>> 3-4e38-9afa-62e133aa8017/images/c5510e77-1ee0-479c-b6cf-24c1
>> 79313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c\"",
>> "_uses_shell": false,
>> "chdir": null,
>> "creates": null,
>> "executable": null,
>> "removes": null,
>> "stdin": null,
>> "warn": true
>> }
>> },
>> "msg": "non-zero return code",
>> "rc": 1,
>> "start": "2018-04-03 15:01:55.577487",
>> "stderr": "dd: failed to open ‘/rhev/data-center/mnt/node.lo
>> cal:_srv_data/81292f3f-11d3-4e38-9afa-62e133aa8017/images/c5
>> 510e77-1ee0-479c-b6cf-24c179313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c’:
>> Permission denied",
>> "stderr_lines": [
>> "dd: failed to open ‘/rhev/data-center/mnt/node.lo
>> cal:_srv_data/81292f3f-11d3-4e38-9afa-62e133aa8017/images/c5
>> 510e77-1ee0-479c-b6cf-24c179313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c’:
>> Permission denied"
>> ],
>> "stdout": "",
>> "stdout_lines": []
>> }
>> [ ERROR ] Failed to execute stage 'Closing up': Failed executing
>> ansible-playbook
>>
>
> In the playbook we have on that task:
> become_user: vdsm
> become_method: sudo
>
> but I fear it got somehow ignored.
> I'll investigate it.
>
>
>>
>> *Output from ansible epdb tracepoint:*
>>
>> Using module file /usr/lib/python2.7/site-packag
>> es/ansible/modules/commands/command.py
>> <localhost> ESTABLISH LOCAL CONNECTION FOR USER: root
>> <localhost> EXEC /bin/sh -c 'echo ~ && sleep 0'
>> <localhost> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo
>> /root/.ansible/tmp/ansible-tmp-1522767715.36-81496549401055 `" && echo
>> ansible-tmp-1522767715.36-81496549401055="` echo
>> /root/.ansible/tmp/ansible-tmp-1522767715.36-81496549401055 `" ) &&
>> sleep 0'
>> <localhost> PUT /tmp/tmpGMGdjh TO /root/.ansible/tmp/ansible-tmp
>> -1522767715.36-81496549401055/command.py
>> <localhost> EXEC /bin/sh -c 'chmod u+x
>> /root/.ansible/tmp/ansible-tmp-1522767715.36-81496549401055/
>> /root/.ansible/tmp/ansible-tmp-1522767715.36-81496549401055/command.py
>> && sleep 0'
>> <localhost> EXEC /bin/sh -c '/usr/bin/python
>> /root/.ansible/tmp/ansible-tmp-1522767715.36-81496549401055/command.py
>> && sleep 0'
>> to retry, use: --limit @/usr/share/ovirt-hosted-engin
>> e-setup/ansible/create_target_vm.retry
>>
>> The above command.py is the on I have attached as problematic_command.py
>>
>> *Investigation After Failure:*
>> [root@node ~]# ls -al '/rhev/data-center/mnt/node.lo
>> cal:_srv_data/81292f3f-11d3-4e38-9afa-62e133aa8017/images/c5
>> 510e77-1ee0-479c-b6cf-24c179313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c'
>> -rw-rw----. 1 vdsm kvm 20480 Apr 3 15:01 /rhev/data-center/mnt/node.loc
>> al:_srv_data/81292f3f-11d3-4e38-9afa-62e133aa8017/images/c55
>> 10e77-1ee0-479c-b6cf-24c179313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c
>>
>> sudo -u vdsm dd bs=20480 count=1 oflag=direct
>> if="/var/tmp/localvmbCDQIR/5ef881f5-c992-48d2-b969-a0b6156bdf7c"
>> of="/rhev/data-center/mnt/node.local:_srv_data/81292f3f-11d3
>> -4e38-9afa-62e133aa8017/images/c5510e77-1ee0-479c-b6cf-24c17
>> 9313a45/5ef881f5-c992-48d2-b969-a0b6156bdf7c
>> 1+0 records in
>> 1+0 records out
>>
>>
>> It seems to me that somehow it is not getting the right permissions even
>> though the playbook has:
>> - name: Copy configuration archive to storage
>> command: dd bs=20480 count=1 oflag=direct if="{{ LOCAL_VM_DIR }}/{{
>> he_conf_disk_details.disk.image_id }}" of="{{ he_conf_disk_path }}"
>> become_user: vdsm
>> become_method: sudo
>> changed_when: True
>> tags: [ 'skip_ansible_lint' ]
>>
>>
>> On Tue, Apr 3, 2018 at 8:51 AM, RabidCicada <rabidcic...@gmail.com>
>> wrote:
>>
>>> I am now also running with:
>>>
>>> export ANSIBLE_VERBOSITY=5
>>>
>>> export ANSIBLE_FORKS=1
>>>
>>> export ANSIBLE_KEEP_REMOTE_FILES=1
>>>
>>>
>>> On Tue, Apr 3, 2018 at 8:49 AM, RabidCicada <rabidcic...@gmail.com>
>>> wrote:
>>>
>>>> Here's the log.
>>>>
>>>> So the command that it says it ran is:
>>>> dd bs=20480 count=1 oflag=direct if=/var/tmp/localvmHaWb6G/1cce
>>>> 8df2-1810-4063-b4e2-e19a2c5b1909 of=/rhev/data-center/mnt/node.
>>>> local:_srv_data/3c7485ea-14e3-40c1-b627-f89a819ed1d6/images/
>>>> 2c1f7c2f-b8f7-46d4-ac66-8ff1e9649e29/1cce8df2-1810-4063-b4e2
>>>> -e19a2c5b1909
>>>>
>>>> But we all know that was done with:
>>>>
>>>> - name: Copy configuration archive to storage
>>>> command: dd bs=20480 count=1 oflag=direct if="{{ LOCAL_VM_DIR }}/{{
>>>> he_conf_disk_details.disk.image_id }}" of="{{ he_conf_disk_path }}"
>>>> become_user: vdsm
>>>> become_method: sudo
>>>> changed_when: True
>>>> tags: [ 'skip_ansible_lint' ]
>>>>
>>>> So I manually replicated with `sudo vdsm dd bs=20480 count=1
>>>> if=/var/tmp/localvmHaWb6G/1cce8df2-1810-4063-b4e2-e19a2c5b1909
>>>> of=/rhev/data-center/mnt/node.local:_srv_data/3c7485ea-14e3-
>>>> 40c1-b627-f89a819ed1d6/images/2c1f7c2f-b8f7-46d4-ac66-8ff1e9
>>>> 649e29/1cce8df2-1810-4063-b4e2-e19a2c5b1909`
>>>>
>>>> And it works when I manually do it. Though I think I didn't use the
>>>> oflag=direct (Just realised this)
>>>>
>>>> I eventually put a pause task directly preceeding it with debug output
>>>> that showed the file paths. I manually ran the command and it worked.
>>>> Then let it do it....failed. I checked all the permissions e.g.
>>>> vdsm:kvm. All looks good from a filesystem point of view. I'm beginning
>>>> (naively) to suspect a race condition for the file access problem...but
>>>> have come nowhere close to solving it.
>>>>
>>>> *Can you suggest a good way to continue executing the install process
>>>> from the create_target_vm.yml playbook (with proper variables and context
>>>> from otopi etc)?* I currently have to restart the entire process over
>>>> again and wait quite a while for it to circle back around.
>>>>
>>>> I have since discovered epdb and I've set breakpoints directly in
>>>> playbook.py of ansible just to see better log output. I insert epdb.serve
>>>> and use netcat to connect since epdb on python 2.7.5 and up seems to have
>>>> problems using epdb.connect() itself.
>>>>
>>>> ~Kyle
>>>>
>>>> On Tue, Apr 3, 2018 at 4:06 AM, Simone Tiraboschi <stira...@redhat.com>
>>>> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Mon, Apr 2, 2018 at 4:52 PM, RabidCicada <rabidcic...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Heyo everyone. I'm trying to debug hosted-engine --deploy. It is
>>>>>> failing in `Copy configuration archive to storage` in
>>>>>> `create_target_vm.yml` from `hosted-engine --deploy`. My general
>>>>>> and most important query here is how to get good debug output from
>>>>>> ansible
>>>>>> through hosted-engine. I'm running hosted-engine through an ssh session.
>>>>>>
>>>>>> I can't figure out how to get good debug output from ansible within
>>>>>> that workflow. I see it's running through otopi, I tried setting
>>>>>> typical `debugger: on_failed` hooks etc and tried many incantations on
>>>>>> the
>>>>>> command line and config files to get ansible to help me out. The
>>>>>> debugger: directive and other debugger related ansible config file stuff
>>>>>> wouldn't result in any debugger popping up. I also can't seem to pass
>>>>>> normal -vvvv flags to hosted-engine either and get it to ansible.
>>>>>> Ultimately I tried to use a `pause` directive and it complained that it
>>>>>> was
>>>>>> in a non-interactive shell. I figured it might be the result of my ssh
>>>>>> session so I enabled tty allocation with -t -t. It did not resolve the
>>>>>> issue.
>>>>>>
>>>>>> I eventually wrote-my-own/stole a callback_plugin that checks an
>>>>>> environmental variable and enables `display.verbosity = int(v)` since I
>>>>>> can't seem to pass typical -vvvv stuff to ansible through `hosted-engine
>>>>>> --deploy`. It give me the best info that I have so far. But it wont
>>>>>> give
>>>>>> me enough to debug issues around Gathering Facts or what looks like a
>>>>>> sudo/permission problem in `Copy configuration archive to storage`
>>>>>> in `create_target_vm.yml`. I took and used the exact command that they
>>>>>> use
>>>>>> manually and it works when I run it manually (But I can't get debug
>>>>>> output
>>>>>> to show me the exact sudo command being executed), hence my interest in
>>>>>> passing -vvvv or equivalent to ansible through `hosted-engine`. I
>>>>>> intentionally disabled the VM_directory cleanup so that I could execute
>>>>>> the
>>>>>> same stuff.
>>>>>>
>>>>>> So....after all that...what is a good way to get deep debug info from
>>>>>> hosted-engine ansible stuff?
>>>>>>
>>>>>
>>>>> You should already find all the relevant log entries in a file
>>>>> called /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engin
>>>>> e-setup-ansible-create_target_vm-{timestamp}-{hash}.log
>>>>>
>>>>> Can you please share it?
>>>>>
>>>>>
>>>>>>
>>>>>> Or does anyone have intuition for the possible sudo problem?
>>>>>> ~Kyle
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users@ovirt.org
>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
_______________________________________________
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
