From owner-freebsd-current@FreeBSD.ORG Thu Aug 8 06:53:34 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id B63814F9 for ; Thu, 8 Aug 2013 06:53:34 +0000 (UTC) (envelope-from lars@netapp.com) Received: from mx1.netapp.com (mx1.netapp.com [216.240.18.38]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 99E2129F5 for ; Thu, 8 Aug 2013 06:53:34 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.89,837,1367996400"; d="asc'?scan'208";a="272234742" Received: from vmwexceht01-prd.hq.netapp.com ([10.106.76.239]) by mx1-out.netapp.com with ESMTP; 07 Aug 2013 23:53:33 -0700 Received: from SACEXCMBX01-PRD.hq.netapp.com ([169.254.2.240]) by vmwexceht01-prd.hq.netapp.com ([10.106.76.239]) with mapi id 14.03.0123.003; Wed, 7 Aug 2013 23:53:32 -0700 From: "Eggert, Lars" To: freebsd-current Subject: nfsd server cache flooded, try to increase nfsrc_floodlevel Thread-Topic: nfsd server cache flooded, try to increase nfsrc_floodlevel Thread-Index: AQHOlAP+ylZAPzFePkW/vcJEBx2JqQ== Date: Thu, 8 Aug 2013 06:53:31 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.106.53.51] Content-Type: multipart/signed; boundary="Apple-Mail=_DCCAA671-D7B1-479D-A9B7-A4D0585935DB"; protocol="application/pgp-signature"; micalg=pgp-sha1 MIME-Version: 1.0 Cc: Rick Macklem X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Aug 2013 06:53:34 -0000 --Apple-Mail=_DCCAA671-D7B1-479D-A9B7-A4D0585935DB Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi, every few days or so, my -STABLE NFS server (v3 and v4) gets wedged with = a ton of messages about "nfsd server cache flooded, try to increase = nfsrc_floodlevel" in the log, and nfsstat shows TCPPeak at 16385. It = requires a reboot to unwedge, restarting the server does not help. The clients are (mostly) six -CURRENT nfsv4 boxes that netboot from the = server and mount all drives from there. I googled around and saw that others have hit this issue, but I haven't = seen any resolution posted. I guess I can increase NFSRVCACHE_FLOODLEVEL = in the source, but I wonder if I wouldn't simply hit the increase value = after a little while longer... Lars --Apple-Mail=_DCCAA671-D7B1-479D-A9B7-A4D0585935DB Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="signature.asc" Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQCVAwUBUgNAbNZcnpRveo1xAQJnxAP/SjcdE0q+Bu3/0rcPVHH4Wnkm4fFgsVlh K79ESGjdx1w85fT+WwYZeEVN3ff2wh/vx5lSrSAED0cp/KtMIF2t2sD6OrX8MExv 3EOFKOy0BJ/3g1LFxjG6Cy11l7NkeE7rwsjUa5mvuVPHY7bjv3KXwVKIBY8grMIC aZevQzu2Re0= =ARd/ -----END PGP SIGNATURE----- --Apple-Mail=_DCCAA671-D7B1-479D-A9B7-A4D0585935DB--