Re: [Libguestfs] guestfs_readdir protocol limit
On Wed, Sep 06, 2017 at 03:55:05PM +0300, Maxim Kozover wrote:
Hi Richard!
Tell me, please, is there any chance you have an (unofficial) patch ready
or almost ready that removes a protocol limit from guestfs_readdir (returns
a large answer in chunks in a loop etc)?
Yes this is one of the very few remaining APIs which has a
protocol limit.
I happen to have a need to use libguestfs fuse accessing the
directory with
a million of files in it, the individual files are accessed ok, but the
directory...
This is a genuine bug. Can you file one?
If you can get away without using fuse (ie. using the API directly)
then a workaround would be to look at how our visitor code works:
https://github.com/libguestfs/libguestfs/blob/master/common/visit/visit.c...
where it only uses APIs which are unlimited, eg:
https://github.com/libguestfs/libguestfs/blob/master/lib/file.c#L507
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v