sentry upgrade not working

[weatherhog]

I followed the instructions at https://docs.sentry.io/server/installation/python/. Everything worked fine until the SENTRY_CONF=/etc/sentry sentry upgrade command.
This ist the Stacktrace:

(sentry) root@sentry:~# SENTRY_CONF=/etc/sentry sentry upgrade
Error in sys.excepthook:
Traceback (most recent call last):
File "/www/sentry/local/lib/python2.7/site-packages/raven/base.py", line 249, in handle_exception
self.captureException(exc_info=exc_info, level='fatal')
File "/www/sentry/local/lib/python2.7/site-packages/raven/base.py", line 781, in captureException
'raven.events.Exception', exc_info=exc_info, kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/raven.py", line 43, in capture
return super(SentryInternalClient, self).capture(args, *kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/raven/contrib/django/client.py", line 284, in capture
result = super(DjangoClient, self).capture(event_type, **kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/raven/base.py", line 610, in capture
self.send(data)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/raven.py", line 64, in send
from sentry.coreapi import ClientApiHelper
File "/www/sentry/local/lib/python2.7/site-packages/sentry/coreapi.py", line 28, in
from sentry import filters
File "/www/sentry/local/lib/python2.7/site-packages/sentry/filters/__init__.py", line 8, in
from .base import Filter # NOQA
File "/www/sentry/local/lib/python2.7/site-packages/sentry/filters/base.py", line 5, in
from sentry.models import ProjectOption
File "/www/sentry/local/lib/python2.7/site-packages/sentry/models/__init__.py", line 14, in
import_submodules(globals(), __name__, __path__)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/imports.py", line 52, in import_submodules
module = __import__(module_name, globals(), locals(), ['__name__'])
File "/www/sentry/local/lib/python2.7/site-packages/sentry/models/deploy.py", line 11, in
from sentry.app import locks
File "/www/sentry/local/lib/python2.7/site-packages/sentry/app.py", line 15, in
from sentry.utils.locking.backends.redis import RedisLockBackend
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/locking/backends/redis.py", line 10, in
delete_lock = redis.load_script('utils/locking/delete_lock.lua')
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/redis.py", line 145, in load_script
script = Script(None, resource_string('sentry', posixpath.join('scripts', path)))
File "/www/sentry/local/lib/python2.7/site-packages/redis/client.py", line 2930, in __init__
encoder = registered_client.connection_pool.get_encoder()
AttributeError: 'NoneType' object has no attribute 'connection_pool'

Original exception was:
Traceback (most recent call last):
File "/www/sentry/bin/sentry", line 11, in
sys.exit(main())
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/__init__.py", line 160, in main
cli(prog_name=get_prog(), obj={}, max_content_width=100)
File "/www/sentry/local/lib/python2.7/site-packages/click/core.py", line 722, in __call__
return self.main(args, *kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/click/core.py", line 697, in main
rv = self.invoke(ctx)
File "/www/sentry/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/www/sentry/local/lib/python2.7/site-packages/click/core.py", line 895, in invoke
return ctx.invoke(self.callback, *ctx.params)
File "/www/sentry/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
return callback(args, *kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, *kwargs)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/decorators.py", line 35, in inner
configure()
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/__init__.py", line 123, in configure
configure(ctx, py, yaml, skip_service_validation)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/settings.py", line 152, in configure
skip_service_validation=skip_service_validation
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/initializer.py", line 251, in initialize_app
apply_legacy_settings(settings)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/runner/initializer.py", line 437, in apply_legacy_settings
url_prefix = options.get('system.url-prefix', silent=True)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/options/manager.py", line 152, in get
result = self.store.get(opt, silent=silent)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/options/store.py", line 72, in get
result = self.get_store(key, silent=silent)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/options/store.py", line 164, in get_store
except self.model.DoesNotExist:
File "/www/sentry/local/lib/python2.7/site-packages/django/utils/functional.py", line 49, in __get__
res = instance.__dict__[self.func.__name__] = self.func(instance)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/options/store.py", line 58, in model
from sentry.models.option import Option
File "/www/sentry/local/lib/python2.7/site-packages/sentry/models/__init__.py", line 14, in
import_submodules(globals(), __name__, __path__)
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/imports.py", line 52, in import_submodules
module = __import__(module_name, globals(), locals(), ['__name__'])
File "/www/sentry/local/lib/python2.7/site-packages/sentry/models/deploy.py", line 11, in
from sentry.app import locks
File "/www/sentry/local/lib/python2.7/site-packages/sentry/app.py", line 15, in
from sentry.utils.locking.backends.redis import RedisLockBackend
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/locking/backends/redis.py", line 10, in
delete_lock = redis.load_script('utils/locking/delete_lock.lua')
File "/www/sentry/local/lib/python2.7/site-packages/sentry/utils/redis.py", line 145, in load_script
script = Script(None, resource_string('sentry', posixpath.join('scripts', path)))
File "/www/sentry/local/lib/python2.7/site-packages/redis/client.py", line 2930, in __init__
encoder = registered_client.connection_pool.get_encoder()
AttributeError: 'NoneType' object has no attribute 'connection_pool'

Sentry Version: 8.19.0
Postgres Version: 9.6.4
Redis Version: 2.8.17
pythom version: 2.7

Host system: Debian 8.9

Let me know if you need some more information

[tkaemming]

This was caused by an upgrade in our Redis client driver that broke the way we load Redis scripts. There will be more details soon at GH-5915 (and work to track the fix will be centralized there as well.) In the meantime you can manually install a version that works via pip to get a compatible version:

pip install redis==2.10.5

[BlackYoup]

For the record, the package seems to be redis, not redis-py: pip install redis==2.10.5

[tkaemming]

Oops, thanks for the correction — I've edited the comment above.

[damm]

Ran into this; thanks for this issue.

[vincent-dravert]

Hi guys,
I am using AWS for Redis and I am not able to select that specific version. Is there anyone assigned to fixing that issue ?
Thank you