e1ff51c045
We don't want to use pickle as it can execute arbitrary code. JSON is safer. However, note that it supports serialization for only some specific subset of object types; this should be enough for what we need, though. To avoid issues on upgrades (unability to read pickled values, and cache poisoning for old servers not understanding JSON), we add a memcache_serialization_support configuration option, with the following values: 0 = older, insecure pickle serialization 1 = json serialization but pickles can still be read (still insecure) 2 = json serialization only (secure and the default) To avoid an instant full cache flush, existing installations should upgrade with 0, then set to 1 and reload, then after some time (24 hours) set to 2 and reload. Support for 0 and 1 will be removed in future versions. Part of bug 1006414. Change-Id: Id7d6d547b103b4f23ebf5be98b88f09ec6027ce4
Swift ----- A distributed object store that was originally developed as the basis for Rackspace's Cloud Files. To build documentation run `python setup.py build_sphinx`, and then browse to /doc/build/html/index.html. The best place to get started is the "SAIO - Swift All In One", which will walk you through setting up a development cluster of Swift in a VM. For more information, visit us at http://launchpad.net/swift, or come hang out on our IRC channel, #openstack on freenode. -- Swift Development Team