Re: [Moosefs-users] mmap file on moosefs error

[youngcow <you...@gm...>]

Hi
   Thanks. rpm Use BDB Library and error happened on bdb library.
Do you have any workaround for it?

> Hi
>
> We made some tests with mmap some time ago and for the moment FUSE on Linux
> doesn't support flag MAP_SHARED - it returns ENODEV error then. Only private
> mappings are supported (MAP_PRIVATE).
>
> Probably rpm or BerkeleyDB (library responsible for rpm database) tries to
> run mmap with this flag.
>
>
> Kind regards
> Michał Borychowski
> MooseFS Support Manager
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> Gemius S.A.
> ul. Wołoska 7, 02-672 Warszawa
> Budynek MARS, klatka D
> Tel.: +4822 874-41-00
> Fax : +4822 874-41-01
>
>
> -----Original Message-----
> From: youngcow [mailto:you...@gm...]
> Sent: Saturday, July 02, 2011 11:40 AM
> To: moosefs-users
> Subject: [Moosefs-users] mmap file on moosefs error
>
> Hi,
>    I found a error when I used moosefs. I used openvz(container-based
> virtualization for Linux) on RHEL 5.6 x86_64
> and put all container file into moosefs and I notice an error when I was
> running "rpm -qa " in vm:
>
> 	rpmdb: mmap: No such device
> 	error: db4 error(19) from dbenv->open: No such device
> 	error: cannot open Packages index using db3 - No such device (19)
> 	error: cannot open Packages database in /var/lib/rpm
>
> So I tested it in physical machine:
> I put the directory "/var/lib/rpm" into moosefs, link the dir to
> /var/lib and run "rpm -qa",the error message also:
> 	rpmdb: mmap: No such device
> 	error: db4 error(19) from dbenv->open: No such device
> 	error: cannot open Packages index using db3 - No such device
> 	error: cannot open Packages database in /var/lib/rpm
>
> Anyone knows the reason. Is it a bug of moosefs?
>
> Thanks.
>
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