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From Todd Lipcon <t...@cloudera.com>
Subject Re: File descriptor limit for WAL
Date Fri, 24 Feb 2017 21:40:39 GMT
On Fri, Feb 24, 2017 at 12:39 PM, Adar Dembo <adar@cloudera.com> wrote:

> It's definitely safe to increase the ulimit for open files; we
> typically test with higher values (like 32K or 64K). We don't use
> select(2) directly; any fd polling in Kudu is done via libev which I
> believe uses epoll(2) under the hood. There's one other place where we
> use ppoll() (in RPC negotiation), but no select().
> A bit of historical curiosity: we actually had this bug a few years back
and fixed it, see 82cf3724077a8fb639a44dd86f04d10ecbedabf4

Todd Lipcon
Software Engineer, Cloudera

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