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Re: [perfsonar-user] Django error after a fresh install


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  • From: Doug Wussler <>
  • To: Andrew Lake <>, Shkelzen Rugovac <>
  • Cc: "" <>
  • Subject: Re: [perfsonar-user] Django error after a fresh install
  • Date: Thu, 14 Dec 2017 14:56:13 +0000
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Will follow your advice and wait to hear from you guys after you sort through it.  Just FYI – I have performed the full install on two distinct systems and both of them exhibited these problems.

 

You may also be interested to know of two other problems I encountered that are system dependent.  If others see these issues, here is what I did:

 

  1. rngd service fails on a system without TPM.  I was able to solve this on my system with this adjustment:

 

               cp /usr/lib/systemd/system/rngd.service /etc/systemd/system

              and then modify the ExecStart like this:

              ExecStart=/sbin/rngd -f -r /dev/urandom -o /dev/random

              Then “systemctl daemon-reload;systemctl restart rngd”

 

  1. /etc/init.d/perfsonar-configure_nic_parameters fails because my Broadcom Limited NetXtreme BCM5720 Gigabit PCIe card does not support “rx-usecs = 0”

 

Here is the diff to my edits so the script would work with my card:

52c52,56

<             IC_OFF $interface

---

>             if echo $interface | grep -q '^em[12]$'; then

>                 IC_OFF_em $interface

>             else

>                 IC_OFF $interface

>             fi

101a106,124

> ###########################################################################

> # The Broadcom Limited NetXtreme BCM5720 Gigabit Ethernet PCIe

> # card does not support a value of 0 for the rx-usecs parameter, 

> # which says to use the value of rx-frames. So we set it to 1.

> IC_OFF_em() {

> IC_RET_em=0

> for i in "$1"; do

>     if ! /usr/sbin/ethtool -c $i | grep -q '^rx-frames: 1$'; then

>          /usr/sbin/ethtool -C $i rx-frames 1 || IC_RET_em=$?

>     fi

>     if ! /usr/sbin/ethtool -c $i | grep -q '^rx-usecs: 1$'; then

>          /usr/sbin/ethtool -C $i rx-usecs 1  || IC_RET_em=$?

>     fi

> done

> return $IC_RET_em

> }

> ###########################################################################

 

Doug Wussler

Florida State University

 

 

From: Andrew Lake <>
Date: Thursday, December 14, 2017 at 9:33 AM
To: Doug Wussler <>, Shkelzen Rugovac <>
Cc: "" <>
Subject: Re: [perfsonar-user] Django error after a fresh install

 

Hi,

 

Its not a forgotten dependency, its installed as part of a python virtualenv in the esmond RPM. The esmond python/django setup has always been a little weird to get around the fact that CentOS 6 does not have python 2.7, and some of that weirdness persists in CentOS 7 even though its does have python 2.7. You are correct that you and the others having this issue all have the same problem that django for whatever reason is not setup correctly.  I’m slightly worried you may just inherit a new set of problem by installing the django RPM. I have done a bunch of FullInstalls in the last couple days trying to recreate and have not had that issue, so I suspect some type of race condition somewhere with package install order or similar. I am working on getting access to a broken node from Szymon (in another thread) to see if I can learn more about what went wrong. I do NOT advise anyone else run “yum install django” just yet if they hit a similar problem.

 

Thanks,

Andy

 

 

 

On December 13, 2017 at 6:18:53 PM, Shkelzen Rugovac () wrote:

I went a bit further I think. Looking carefully at what /usr/lib/perfsonar/scripts/system_environment/configure_esmond  is supposed to do I found out that the $KEY remains empty when running it (by adding a line "echo $KEY").

 

Running separately the command "python esmond/manage.py add_api_key_user perfsonar", I got a complain about a missing module django.core.management.

Then I installed 2 python-django rpms with "yum install django" and rebooted.

After the boot, "/usr/lib/perfsonar/scripts/system_environment/configure_esmond --force" worked and created /usr/share/pscheduler/psc-archiver-esmond.json.

 

Now, all looks fine. We can see non-empty lists in the archive page.

 

Is python-django a forgotten dependency of the perfsonar toolkit? Or part of the django that is contained in esmond is missing? eg : django.core.management?

 

Cheers,

Shkelzen

 

2017-12-13 20:19 GMT+01:00 Doug Wussler <>:

Making progress….  I also rebooted.  /var/log/messages looks clean now.  But the “pscheduler task” command still returns this error:

 

Unable to read archive file: [Errno 2] No such file or directory: '/usr/share/pscheduler/psc-archiver-esmond.json'

 

 

 

And when I log in as root I see this (which was there earlier too, this is not new):

 

ABRT has detected 1 problem(s). For more info run: abrt-cli list --since 1513186024

id dbfb005bb360b44b7061efdc82ae2c09130ba258

reason:         pidfile.py:48:__exit__:OSError: [Errno 13] Permission denied: '/var/run/pscheduler-scheduler.pid'

time:           Wed 13 Dec 2017 12:18:57 PM EST

cmdline:        /usr/bin/python /usr/libexec/pscheduler/daemons/scheduler --daemon --pid-file /var/run/pscheduler-scheduler.pid --dsn @/etc/pscheduler/database/database-dsn

package:        pscheduler-server-1.0.2-1.el7.centos

uid:            1000 (pscheduler)

count:          6

Directory:      /var/spool/abrt/Python-2017-12-13-12:18:57-1926

 

 

Doug

 

 

 

From: Andrew Lake <>
Date: Wednesday, December 13, 2017 at 1:38 PM


To: Doug Wussler <>, Shkelzen Rugovac <>
Cc: "" <>
Subject: Re: [perfsonar-user] Django error after a fresh install

 

Hi,

 

That file that’s missing is really just for convenience, but the fact that it is missing is probably an artifact of the failed setup. Try running "/usr/lib/perfsonar/scripts/system_environment/configure_esmond —force”. It should create the file. Not sure how your setup got that broken, must have had some issue getting to postgres as well at one point.

 

You can ignore those powstream errors about the diretcory missing, those are harmless. 

 

Thanks,

Andy

 

 

 

On December 13, 2017 at 1:06:22 PM, Doug Wussler () wrote:

Andy –

 

I executed the restarts but when I then executed the “pscheduler task” command I got this error:

 

Unable to read archive file: [Errno 2] No such file or directory: '/usr/share/pscheduler/psc-archiver-esmond.json'

 

Just to repeat, we are IPv4 only, we don’t use IPv6.

 

Don’t see any errors in the /var/log/Esmond logs anymore but my /var/log/messages contains this:

 

journal: tool-powstream/run ERROR    powstream exited with error, will attempt restart: Nothing on stderr, may have been killed by external command (e.g. something ran 'kill')

journal: tool-powstream/run ERROR    powstream exited with error, will attempt restart: Nothing on stderr, may have been killed by external command (e.g. something ran 'kill')

journal: tool-powstream/run ERROR    powstream failed to complete execution: <type 'exceptions.IOError'>

journal: tool-powstream/run ERROR    powstream failed to complete execution: <type 'exceptions.IOError'>

journal: safe_run/runner ERROR    Restarting: ['/usr/libexec/pscheduler/daemons/runner', '--daemon', '--pid-file', '/var/run/pscheduler-runner.pid', '--dsn', '@/etc/pscheduler/database/database-dsn']

journal: runner INFO     Started

journal: safe_run/runner ERROR    Program threw an exception after 0:00:00.521575

journal: safe_run/runner ERROR    Exception: DatabaseError: server closed the connection unexpectedly#012#011This probably means the server terminated abnormally#012#011before or while processing the request.#012#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/pscheduler/saferun.py", line 72, in safe_run#012    function()#012  File "/usr/libexec/pscheduler/daemons/runner", line 932, in <lambda>#012    pscheduler.safe_run(lambda: main_program())#012  File "/usr/libexec/pscheduler/daemons/runner", line 842, in main_program#012    """, [refresh]);#012DatabaseError: server closed the connection unexpectedly#012#011This probably means the server terminated abnormally#012#011before or while processing the request.

Dec 13 12:53:46 psonar-ca journal: safe_run/runner ERROR    Waiting 22.5 seconds before restarting

 

 

And the command “systemctl status –l pscheduler-runner” reports:

 

run[13589]: tool-powstream/run WARNING  Unable to remove powstream temporary directory /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175432202983 due to error reported by OS: 2: No such file or directory (filename: /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175432202983)

python[1924]: detected unhandled Python exception in '/usr/libexec/pscheduler/daemons/runner'

systemd[1]: pscheduler-runner.service: main process exited, code=exited, status=1/FAILURE

systemd[1]: Stopped pScheduler server - runner.

systemd[1]: Unit pscheduler-runner.service entered failed state.

systemd[1]: pscheduler-runner.service failed.

run[13762]: tool-powstream/run WARNING  Unable to remove powstream temporary directory /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175456196516 due to error reported by OS: 2: No such file or directory (filename: /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175456196516)

run[13901]: tool-powstream/run WARNING  Unable to remove powstream temporary directory /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175520196554 due to error reported by OS: 2: No such file or directory (filename: /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175520196554)

run[13762]: tool-powstream/run WARNING  Unable to remove powstream temporary directory /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175456196516 due to error reported by OS: 2: No such file or directory (filename: /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175456196516)

run[13901]: tool-powstream/run WARNING  Unable to remove powstream temporary directory /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175520196554 due to error reported by OS: 2: No such file or directory (filename: /var/lib/pscheduler/tool/powstream/e664a834-4e5c-468b-901d-f8e552502dd9-2017Dec13T175520196554)

 

 

 

Doug

 

 

From: Andrew Lake <>
Date: Tuesday, December 12, 2017 at 10:20 AM
To: Doug Wussler <>, Shkelzen Rugovac <>
Cc: "" <>
Subject: Re: [perfsonar-user] Django error after a fresh install

 

Hi,

 

Ok, I’m actually able to recreate these exact exceptions if my host boots with only an IPv6 address. Even after I assign it an IPv4 address things don’t work until I restart some of the daemons. Do your hosts have just an IPv6 address? I see the hostname Shkelzen shared is dual-stack so in theory it should have both and be fine, but maybe there is some race condition with when addresses get assigned vs when the daemons come up? Try the following if you host has an IPv4 address as well, since the commands below seemed to fix things for me after assigning an IPv4 address:

 

systemctl restart cassandra

systemctl restart httpd

systemctl restart pscheduler-scheduler

systemctl restart pscheduler-archiver

systemctl restart pscheduler-ticker

systemctl restart pscheduler-runner

 

If you want a quick command to add something to your archive run:

 

pscheduler task --archive @/usr/share/pscheduler/psc-archiver-esmond.json idle —duration PT5S

 

The second command should return a non-empty list if things are back to working.

 

If you host is indeed IPv6 only then the above is likely not enough. Cassandra not working properly on a host with IPv6 only by default is a known issue and the fix for that is documented in an FAQ: http://docs.perfsonar.net/FAQ.html#q-how-can-i-get-cassandra-to-run-on-a-host-that-only-has-an-ipv6-address. Unfortunately that one is mostly out of our control so best we can do is provide the FAQ with the fix. The Django error is new, so we can dig closer at that. 

 

Thanks,

Andy

 

 

 

 

On December 12, 2017 at 3:36:50 AM, Shkelzen Rugovac () wrote:

Hi all,

 

Indeed, after applying "yum reinstall esmond" the "internal Server Error" disappeared but not the error in the django.log. 

 

Not knowing what possible service to restart, I just rebooted the whole server and now django logs the following error:

 

2017-12-12 09:16:43,508 [ERROR] /usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/exception.py: Internal Server Error: /esmond/perfsonar/archive

Traceback (most recent call last):

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/exception.py", line 42, in inner

    response = get_response(request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/base.py", line 244, in _legacy_get_response

    response = middleware_method(request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/middleware/common.py", line 62, in process_request

    if self.should_redirect_with_slash(request):

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/middleware/common.py", line 80, in should_redirect_with_slash

    not is_valid_path(request.path_info, urlconf) and

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/urls/base.py", line 157, in is_valid_path

    resolve(path, urlconf)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/urls/base.py", line 27, in resolve

    return get_resolver(urlconf).resolve(path)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/urls/resolvers.py", line 270, in resolve

    for pattern in self.url_patterns:

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/utils/functional.py", line 35, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/urls/resolvers.py", line 313, in url_patterns

    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/utils/functional.py", line 35, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/urls/resolvers.py", line 306, in urlconf_module

    return import_module(self.urlconf_name)

  File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module

    __import__(name)

  File "/usr/lib/esmond/esmond/urls.py", line 10, in <module>

    from esmond.api.api_v2 import (

  File "/usr/lib/esmond/esmond/api/api_v2.py", line 52, in <module>

    raise ConnectionException(str(e))

ConnectionException: '"System Manager can\'t connect to Cassandra at localhost:9160 - Could not connect to localhost:9160"'

 

 

Any hint?

 

Cheers,

Shkelzen

 

2017-12-11 17:45 GMT+01:00 Doug Wussler <>:

Andrew –

 

That was me.  The “yum reinstall esmond” cleared up the “Internal Server Error” I was getting in the “Test Results” section when I visited the toolkit page.  But it did not clear up the issue Shkelzen is reporting, I have the same error even after reinstalling Esmond and rebooting.  We both did a full install of the 4.02 ISO and our /var/log/esmond/django.log is showing the same failure.  The reinstall has not fixed this problem.

 

Doug Wussler

Florida State University 

 

From: <> on behalf of Andrew Lake <>
Date: Monday, December 11, 2017 at 9:07 AM
To: "" <>, Shkelzen Rugovac <>
Subject: Re: [perfsonar-user] Django error after a fresh install

 

Hi,

 

Someone else reported a similar issue last week and they were able to correct it by doing a “yum reinstall esmond”. The dev team is investigating closer as it doesn't appear to happen in our test builds, so must be some condition or inconsistent package ordering that is triggering it.

 

Thanks,

Andy

 

 

 

 

 

On December 11, 2017 at 3:27:21 AM, Shkelzen Rugovac () wrote:

Hi,

 

After a fresh installation via the FULL 4.0.2 ISO + yum update [1],[2] and [3], I have the following error in  /var/log/esmond/django.log :

 

2017-12-11 09:18:31,761 [ERROR] /usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/exception.py: Internal Server Error: /esmond/perfsonar/archive/

Traceback (most recent call last):

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/exception.py", line 42, in inner

    response = get_response(request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response

    response = self._get_response(request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response

    response = self.process_exception_by_middleware(e, request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response

    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view

    return view_func(*args, **kwargs)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/viewsets.py", line 90, in view

    return self.dispatch(request, *args, **kwargs)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/views.py", line 489, in dispatch

    response = self.handle_exception(exc)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/views.py", line 449, in handle_exception

    self.raise_uncaught_exception(exc)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/views.py", line 486, in dispatch

    response = handler(request, *args, **kwargs)

  File "/usr/lib/esmond/esmond/api/perfsonar/api_v2.py", line 838, in list

    return super(ArchiveViewset, self).list(request)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/mixins.py", line 42, in list

    page = self.paginate_queryset(queryset)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/generics.py", line 173, in paginate_queryset

    return self.paginator.paginate_queryset(queryset, self.request, view=self)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/pagination.py", line 335, in paginate_queryset

    self.count = _get_count(queryset)

  File "/usr/lib/esmond/lib/python2.7/site-packages/rest_framework/pagination.py", line 53, in _get_count

    return queryset.count()

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/models/query.py", line 369, in count

    return self.query.get_count(using=self.db)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/models/sql/query.py", line 476, in get_count

    number = obj.get_aggregation(using, ['__count'])['__count']

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/models/sql/query.py", line 457, in get_aggregation

    result = compiler.execute_sql(SINGLE)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 835, in execute_sql

    cursor.execute(sql, params)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute

    return self.cursor.execute(sql, params)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__

    six.reraise(dj_exc_type, dj_exc_value, traceback)

  File "/usr/lib/esmond/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute

    return self.cursor.execute(sql, params)

ProgrammingError: relation "ps_metadata" does not exist

LINE 1: ...e" AS Col3, "ps_metadata"."checksum" AS Col4 FROM "ps_metada...

 

 

Why ps_metadata not (yet) present?

 

 

Cheers,

Shkelzen

 

 

--

Shkelzen RUGOVAC       

Université Libre de Bruxelles
Bd du Triomphe, CP230
1050 Bruxelles - Belgium

Office at VUB:
Building G - Level 0 - Room 147

Tel: (+32) 2 629 33 26



 

--

Shkelzen RUGOVAC       

Université Libre de Bruxelles
Bd du Triomphe, CP230
1050 Bruxelles - Belgium

Office at VUB:
Building G - Level 0 - Room 147

Tel: (+32) 2 629 33 26



 

--

Shkelzen RUGOVAC       

Université Libre de Bruxelles
Bd du Triomphe, CP230
1050 Bruxelles - Belgium

Office at VUB:
Building G - Level 0 - Room 147

Tel: (+32) 2 629 33 26




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