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From: Stephen Hemminger <stephen@networkplumber.org>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>,
	<stable@dpdk.org>, Ciara Power <ciara.power@intel.com>,
	Chengwen Feng <fengchengwen@huawei.com>,
	Shaowei Sun <1819846787@qq.com>
Subject: Re: [PATCH] telemetry: lower log level on socket error
Date: Mon, 17 Jun 2024 07:39:43 -0700	[thread overview]
Message-ID: <20240617073943.16cc7f66@hermes.local> (raw)
In-Reply-To: <ZnBIAdAunG9XP3g8@bricha3-mobl1.ger.corp.intel.com>

On Mon, 17 Jun 2024 15:28:17 +0100
Bruce Richardson <bruce.richardson@intel.com> wrote:

> On Thu, Jun 06, 2024 at 02:26:54PM +0200, David Marchand wrote:
> > When starting two DPDK programs using the same DPDK prefix (like for
> > example OVS and testpmd, both running as primary processes in
> > --in-memory mode), the first DPDK process of the two spews some error
> > log when the second starts:
> > 
> > TELEMETRY: Socket write base info to client failed
> > 
> > This is because telemetry init involves trying to connect on existing
> > sockets to check if it can take over an existing socket file.
> > 
> > On the other hand, this error log provides no helpful information.
> > Lower this log to debug level.
> > 
> > Fixes: e14bb5f10509 ("telemetry: fix connected clients count")
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: David Marchand <david.marchand@redhat.com>  
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> 
> Would it be also worthwhile having the probing process wait a small amount
> of time or check for an input string before closing the socket? That should
> avoid the error message being necessary at all for the case described.

If telemetry used abstract socket path instead this would not be a problem.
Using regular paths leads to races and problems with restart.
And all the stat and runtime check logic could go away.

  reply	other threads:[~2024-06-17 14:39 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-06 12:26 David Marchand
2024-06-06 13:26 ` Christian Ehrhardt
2024-06-19 14:37   ` Thomas Monjalon
2024-06-17 14:28 ` Bruce Richardson
2024-06-17 14:39   ` Stephen Hemminger [this message]
2024-06-17 14:52     ` Bruce Richardson
2024-06-17 15:13       ` Stephen Hemminger
2024-06-19 15:44   ` Thomas Monjalon

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