[libvirt] [PATCH] Libvirt: Add missing default value for config option max_queued_clients
Michal Privoznik
mprivozn at redhat.com
Tue Mar 1 17:16:40 UTC 2016
On 29.02.2016 14:33, Jason J. Herne wrote:
> Commit 1199edb1d4e3 added config option max_queued_clients and documented the
> default value as 1000 but never actually set that value. This patch sets the
> default value.
>
> This addresses an issue whereby the following error message is reported if too
> many migrations are started simultaneously:
>
> error: End of file while reading data: Ncat: Invalid argument.: Input/output error
>
> The problem is that too many ncat processes are spawned on the destination
> system. They all attempt to connect to the libvirt socket. Because the
> destination libvirtd cannot respond to the connect requests quickly enough we
> overrun the socket's pending connections queue.
>
> Signed-off-by: Jason J. Herne <jjherne at linux.vnet.ibm.com>
> Reviewed-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
> ---
> daemon/libvirtd-config.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/daemon/libvirtd-config.c b/daemon/libvirtd-config.c
> index c31c8b2..7a448f9 100644
> --- a/daemon/libvirtd-config.c
> +++ b/daemon/libvirtd-config.c
> @@ -280,6 +280,7 @@ daemonConfigNew(bool privileged ATTRIBUTE_UNUSED)
> data->min_workers = 5;
> data->max_workers = 20;
> data->max_clients = 5000;
> + data->max_queued_clients = 1000;
> data->max_anonymous_clients = 20;
>
> data->prio_workers = 5;
>
Oops. ACKed and pushed. Thanks for noticing.
Michal
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