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I've had a good read of the docs, and cannot find anywhere where the format of the session key is discussed, so I don't think there are any doc patches required. I'm at a loss for how to solve this. Folder-by-type or Folder-by-feature I have forgotten what the puzzle was Do (did) powered airplanes exist where pilots are not in a seated position? Of course memcached can be on other server. –Nikolay Fominyh Apr 14 '14 at 20:21 Thanks @Nikolay Fominyh –AmanKumar Apr 2 at 23:53 add a comment| up vote 3 Source

I'd like to tune Linux's TCP retransmit timer lower than three seconds, but it's not tunable. Especially for sessions, because Redis has disk based backup, where memcached if the service is restarted your users sessions are killed. :( –Nick Sullivan Oct 8 '12 at 5:15 add a Try refreshing the page". For more options, visit this group at http://groups.google.com/group/django-updates?hl=en.

Openstack Unable To Create A New Session Key. It Is Likely That The Cache Is Unavailable

Since upgrading to 1.4.5 (which runs multithreaded by default I believe) I haven't seen the issue. So we try for a (large) number of times # and then raise an exception. https://docs.djangoproject.com/en/dev/topics/cache/ share|improve this answer answered Jul 11 '14 at 18:11 theLeanDeveloper 301212 Afraid not.

Arrows for Matrix Row Operations Bought agency bond (FANNIE MAE 0% 04/08/2027), now what? All subsequent cache queries fail as python-memcache has marked the host dead, leading to the RuntimeError after 10,000 attempts to set a new session key. Help, my office wants infinite branch merges as policy; what other options do we have? I will try it out and hopefully you are right. –pbhowmick Jul 14 '14 at 15:55 I was having the same issue as you -- the memcache client would

In which module does authentication takes place between Keystone and Horizon ? Django Memcached Chinese English ▼ Hi there! i.e. Do progress reports/logging information belong on stderr or stdout?

May be it's your case too. Django is a registered trademark of the Django Software Foundation. In the settings file for this local, development version of Django, I simply set the following value: SESSION_ENGINE = 'django.contrib.sessions.backends.file' This is not the solution I would use in a production That's the risk you shoulder if using # cache backing.

Django Memcached

I saw this problem on memcached 1.2.2. Are the mountains surrounding Mordor natural? Openstack Unable To Create A New Session Key. It Is Likely That The Cache Is Unavailable The Anti-Santa: Dealing with the Naughty List How to block Hot Network Questions in the sidebar of Stack Exchange network? Install Memcached Ubuntu comment:20 Changed 4 years ago by Aymeric Augustin Owner: changed from stumbles to Aymeric Augustin Status: assigned → new comment:21 Changed 4 years ago by Aymeric Augustin Resolution: → fixed

Thanks stumbles for the patch. this contact form For more options, visit this group at http://groups.google.com/group/django-updates?hl=en. I've had a good read of the docs, and cannot find anywhere where the format of the session key is discussed, so I don't think there are any doc patches required. So we try for a (large) number of times # and then raise an exception.

django amazon-ec2 memcached share|improve this question asked Jul 29 '11 at 5:55 claymation 1,4121726 I have the same problem with pure Django on dev-sever. I've looked at some more tcpdump traces, and have observed this exception occurring as a result of packet loss within Amazon EC2's network. Looks like one issue is that django.contrib.sessions.backends.file only allows the following characters in cache keys: VALID_KEY_CHARS = set("abcdef0123456789"). have a peek here While using tcpdump to diagnose potential problems communicating with memcached, I observed the following flow: {{{ app server -> memcached: GET memcached -> app server: END (indicates nothing

Browse other questions tagged django amazon-ec2 memcached or ask your own question. To unsubscribe from this group, send email to [hidden email]. memcache), we don't know if # we are failing to create a new session because of a key collision or # because the cache is missing.

Overview Download Documentation News Community Code About ♥ Donate Code GitHub LoginDjangoProject LoginPreferencesAPI View TicketsReportsTimelineWikiSearch Context Navigation ← Previous TicketNext Ticket → Opened 6 years ago Closed 4 years ago #14093

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Includes verbatim copy of uuid.py from python 2.6 to fix issue that uuid is not in std libs in python 2.4 comment:6 Changed 6 years ago by tomevans223 Patch needs improvement: UPDATE: django.contrib.sessions.backends.file' writes the session files to /tmp directory so my first thought is that it it does not know the location of the session store or it cant read or Changed 4 years ago by stumbles Attachment: trac#14093-cache-session.diff​ added Extend exception to explain that cache may be unavailable. http://netfiscal.com/unable-to/django-unable-to-open-database-file.html Please sign in tags users badges help ALL UNANSWERED Ask Your Question 0 RuntimeError: Unable to create a new session key.

comment:5 Changed 6 years ago by tomevans223 Ah, I didn't run a test run, thanks for that. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I don't see a problem with extending that set to include '-', or (less preferably) we could process the generated uuid to remove the '-', but that would leave it less comment:7 Changed 6 years ago by Paul McMillan The VALID_KEY_CHARS setting was introduced to sanitize user input for security.

Django Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: [Django] #14093: Unable to create a new session key on edit flag offensive delete link more add a comment 0 answered 2016-04-07 23:19:15 -0600 IceX 1 ●1 ●1 I had the same problem.... To unsubscribe from this group, send email to [hidden email]. Django can't do much if the cache doesn't work, or if the network loses enough packets to make the cache unusable.

comment:15 Changed 5 years ago by Alan Justino da Silva Cc: Alan Justino da Silva added comment:16 Changed 5 years ago by Aymeric Augustin Easy pickings: set Summary: Unable to create comment:4 Changed 6 years ago by Tim Graham Patch needs improvement: set Tom, I applied your patch and ran the tests for a quick sanity check. We need to address that directly. Anyway... ...even if you could get this to work it's surely better to use Google's API lib and borrow from the Django Memcached implementation, especially as the Google lib has been

more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation comment:17 Changed 5 years ago by Clay McClure Cc: Clay McClure removed comment:18 Changed 4 years ago by myusuf3 @aaugustin what needs to be done here? Reload to refresh your session. To post to this group, send email to [hidden email].

Any suggestion. The post recommends not to set this is PRODUCTION environments . Snowman Bowling more hot questions question feed lang-py about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture To post to this group, send email to [hidden email].

This really isn't going to fix the problem, which is that your cache is timing out.

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