Update git submodules

* Update oslo.cache from branch 'master'
  - Fix memcache pool client in monkey-patched environments
    
    First off, this is an ugly hack, but we're dealing with code that
    essentially monkey-patches a monkey-patch. You reap what you sow.
    
    Per the linked bug, our connection pool client explodes on python 3
    with eventlet monkey-patching in force:
    
    TypeError: object() takes no parameters
    
    This is due to the way __new__ is overridden in the class. We need
    to strip arguments from the call before they get to object(), which
    doesn't accept args.
    
    Unfortunately, when we're _not_ monkey-patched, adding the new
    override implementation fails with:
    
    TypeError: object.__new__(_MemcacheClient) is not safe,
    use Client.__new__()
    
    As such, we need different implementations depending on whether we
    are monkey-patched or not. This change passes both with and without
    monkey-patching and adds a unit test that exposes the bug.
    
    Note that this is a temporary, backportable fix that will ultimately
    be replaced by a switch to the pymemcache library which does not
    have the threading.local problem being worked around here.
    
    Change-Id: I039dffadeebd0ff4479b9c870c257772c43aba53
    Partial-Bug: 1812935
This commit is contained in:
Ben Nemec 2019-02-26 22:12:23 +00:00 committed by Gerrit Code Review
parent 5cd44609ae
commit 3b9ba95e49
1 changed files with 1 additions and 1 deletions

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Subproject commit b1f231f642c240daa4f73effff6fc8a029d580af
Subproject commit f4a25f642991a7114b86f6eb7d0bac3d599953a6