On Fri, Sep 8, 2017 at 6:25 PM, 严海双 <yanhaishu...@cmss.chinamobile.com> wrote: > > >> On 2017年9月9日, at 上午6:13, Cong Wang <xiyou.wangc...@gmail.com> wrote: >> >> On Wed, Sep 6, 2017 at 8:10 PM, Haishuang Yan >> <yanhaishu...@cmss.chinamobile.com> wrote: >>> Different namespace application might require different maximal number >>> of TCP sockets independently of the host. >> >> So after your patch we could have N * net->ipv4.sysctl_tcp_max_orphans >> in a whole system, right? This just makes OOM easier to trigger. >> > > From my understanding, before the patch, we had N * > net->ipv4.sysctl_tcp_max_orphans, > and after the patch, we could have ns1.sysctl_tcp_max_orphans + > ns2.sysctl_tcp_max_orphans > + ns3.sysctl_tcp_max_orphans, is that right? Thanks for your reviewing.
Nope, by N I mean the number of containers. Before your patch, the limit is global, after your patch it is per container.
