(Cc'ing autgeas-devel and netcf-devel to see if anyone else has
encountered this)
On 03/04/2011 11:06 AM, Neil Wilson wrote:
Do you know if there is a known FD leak in the 0.8.8 netcf subsystem of
libvirt on RHEL6?
I'm not aware of any. Has anyone seen leaks like this with other
multi-threaded uses of augeas?
I'm confused a bit by the version numbers here, though.
0.8.8 looks like a libvirt version number, but the official libvirt in
RHEL6.0 is 0.8.1-something, and in RHEL6.1 is 0.8.7-something.
netcf is currently at 0.1.7, but your debug info below shows that
lokkit.aug and iptables.aug are being accessed, yet that version of
netcf no longer does anything with lokkit or iptables. (or at least it
shouldn't be anyway; I was pretty sure I removed all of that).
Just so we know exactly what we're working with, can you provide the
output of:
rpm -qa augeas netcf libvirt
I've done a bit of stracing here this afternoon and occasionally two
threads end up trying to open the augeas files at the same time. When
this happens one or more of the FDs doesn't get closed. So you end up
with:
libvirtd 23103 root 22r REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 23r REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 24u REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 25r REG 8,2 170
607 /usr/share/netcf/lenses/netcf.aug
libvirtd 23103 root 26r REG 8,2 2202
589 /usr/share/augeas/lenses/dist/util.aug
libvirtd 23103 root 27r REG 8,2 809
458 /usr/share/augeas/lenses/dist/build.aug
libvirtd 23103 root 28r REG 8,2 1542
487 /usr/share/augeas/lenses/dist/modprobe.aug
libvirtd 23103 root 29r REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 30r REG 8,2 2216
486 /usr/share/augeas/lenses/dist/lokkit.aug
libvirtd 23103 root 31r REG 8,2 2202
589 /usr/share/augeas/lenses/dist/util.aug
libvirtd 23103 root 33r REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 34r REG 8,2 2339
481 /usr/share/augeas/lenses/dist/iptables.aug
libvirtd 23103 root 35r REG 8,2 3600
509 /usr/share/augeas/lenses/dist/shellvars.aug
libvirtd 23103 root 36r REG 8,2 170
607 /usr/share/netcf/lenses/netcf.aug
And so on until the process dies through lack of FDs.
I don't see this behaviour on RHEL5 where the program is built without
netcf.
I'm not actually using the interface facilities of libvirt, so I'm not
even sure what is triggering the code. Any pointers as to what to do
with this gratefully received.
Are you running virt-manager? It will query libvirt once a second for a
bunch of things, including the interface info. I wouldn't think
virt-manager itself would be doing this in multiple threads, though.
_______________________________________________
augeas-devel mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/augeas-devel
