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From Nick North <nort...@gmail.com>
Subject Re: Replicated database size
Date Tue, 22 May 2012 11:56:05 GMT
Good luck, and many thanks for looking into this. For your sake, I wish it
had been a unique quirk on my setup.

Nick

On 22 May 2012 11:26, Dave Cottlehuber <dave@muse.net.nz> wrote:

> On 17 May 2012 12:07, Nick North <north.n@gmail.com> wrote:
>
> > I'm getting this behaviour on 2008R2 and plain old 2008, and all my
> > instances are running the R15B build as a service.
> >
> > Nick
> >
> > On 17 May 2012 11:00, Dave Cottlehuber <dave@muse.net.nz> wrote:
> >
> > > Weird. What release of w2008 server is it? i'll spin one up & see if I
> > can
> > > get the same result. Is this the R15B or the R14B04 build? Presumably
> > > running as a service, right?
> > >
> > > On 17 May 2012 10:08, Nick North <north.n@gmail.com> wrote:
> > >
> > > > Looking at erl.exe with procexp shows that both Win7 and Server 2008
> > are
> > > > using 10.0.40219.325. Installing your vcredist version asked if I
> > wanted
> > > to
> > > > repair the existing installation, so I let it go ahead. Unfortunately
> > it
> > > > made no difference: after installation the version in use was still
> > > > 10.0.40219.325 and the tests failed in the same way.
> > > >
> > > > Nick
> > > >
> > > > On 16 May 2012 22:58, Dave Cottlehuber <dave@muse.net.nz> wrote:
> > > >
> > > > > On 16 May 2012 20:37, Nick North <north.n@gmail.com> wrote:
> > > > >
> > > > > > Thanks for replying - that test does show up a problem. It works
> > fine
> > > > on
> > > > > my
> > > > > > Win7 machine but, on Windows Server, says:
> > > > > >
> > > > > > Erlang R15B (erts-5.9) [source] [smp:2:2] [async-threads:0]
> > > > > >
> > > > > > Eshell V5.9  (abort with ^G)
> > > > > > 1> application:load(snappy).
> > > > > > ok
> > > > > > 2> application:start(snappy).
> > > > > > ok
> > > > > > 3> c(snappy_tests).
> > > > > > {ok,snappy_tests}
> > > > > > 4> snappy_tests:test().
> > > > > > snappy_tests: compression_test_...*failed*
> > > > > > ::snappy_nif_not_loaded
> > > > > >
> > > > > >
> > > > > > snappy_tests: decompression_test_...*failed*
> > > > > > ::snappy_nif_not_loaded
> > > > > >
> > > > > >
> > > > > > =======================================================
> > > > > >  Failed: 2.  Skipped: 0.  Passed: 0.
> > > > > > error
> > > > > >
> > > > > > Both systems have snappy_nif.dll, in the
> > > > %COUCHDB%\lib\snappy-1.0.3\priv
> > > > > > directory and they look to be the same file, at least as far
as
> can
> > > be
> > > > > > determined from Windows Explorer.
> > > > > >
> > > > > > C++ runtime versions are fairly different. The server has 2008
> x64
> > > and
> > > > > x86,
> > > > > > and 2010 x86. The Win7 machine has 2005 x64, 2008 x64 and x86,
> 2010
> > > x64
> > > > > and
> > > > > > x86 and the C++ 11 Beta x64. There are various sub-versions
of
> > each,
> > > > and
> > > > > I
> > > > > > can give more details if that is useful.
> > > > > >
> > > > > >
> > > > > I'd like to know *exactly* what the server is using for
> > > vcredist_x86.exe
> > > > > (VC10 version
> > > > > only). You can see this with sigcheck[1] if you have the original
> > > > vcredist
> > > > > to hand.
> > > > >
> > > > > When erlang/couch is running you can use listdlls[2] or procexp[3]
> to
> > > > peek
> > > > > in and
> > > > > see what runtime it has decided to use.
> > > > >
> > > > > After all that, try installing this vcredist version[4] and seeing
> if
> > > > that
> > > > > resolves things.
> > > > >
> > > > > There are numerous bugs in the dll load path stuff on windows, and
> > IIRC
> > > > > different
> > > > > manifestations of that across OS  versions. Let's hope this is not
> > the
> > > > > issue here!
> > > > >
> > > > > Finally, screw MS for releasing the same filename with 3
> consecutive
> > > VC++
> > > > > releases..
> > > > > that's plain dumb. I'll reserve my vituperation for twitter.
> > > > >
> > > > > A+
> > > > > Dave
> > > > >
> > > > > [1]: http://technet.microsoft.com/en-us/sysinternals/bb897441<
> > > > > http://technet.microsoft.com/en-us/sysinternals/bb897441.aspx>
> > > > > [2]: http://technet.microsoft.com/en-us/sysinternals/bb896656
> > > > > [3]: http://technet.microsoft.com/en-us/sysinternals/bb896653
> > > > > [4]:
> > > > >
> > > > >
> > > >
> > >
> >
> http://download.microsoft.com/download/1/6/5/165255E7-1014-4D0A-B094-B6A430A6BFFC/vcredist_x86.exe
> > > > > [5]: msdn.microsoft.com/en-us/library/windows/desktop/ms682586
> > > > >
> > > >
> > >
> >
>
> I can confirm that, snappy definitely fails on Windows 2008 R2 server. I'm
> still downloading SDKs and dependencies to see why.
>
> A+
> Dave
>

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