Re: [libvirt] [PATCH 0/2] qemu: Don't log partial buffer reads from qemu monitor

On Thu, Dec 21, 2017 at 12:16:50PM +0100, Peter Krempa wrote:

I was debugging a case where 200 snapshots of a disk would result in a VERY long reconnect time after libvirtd restart when debug logging was enabled.

I've figured out that qemu responds with 9MiB of json after calling "query-named-block-nodes" and this resulted in > 26 GiB of libvirtd debug log just to process the message.

I'll report the qemu flaw separately.

Peter Krempa (2): util: probe: Add quiet versions of the "PROBE" macro qemu: monitor: Decrease logging verbosity

src/qemu/qemu_monitor.c | 4 ++-- src/qemu/qemu_monitor_json.c | 3 +++ src/util/virprobe.h | 8 ++++++++ 3 files changed, 13 insertions(+), 2 deletions(-)

ACK series with the typos fixed. Jan