From owner-freebsd-questions@freebsd.org Wed Apr 14 14:29:16 2021 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1EAD15DB5B2 for ; Wed, 14 Apr 2021 14:29:16 +0000 (UTC) (envelope-from chris@transientnetworks.com) Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4FL4bv3kX1z3Kn7 for ; Wed, 14 Apr 2021 14:29:15 +0000 (UTC) (envelope-from chris@transientnetworks.com) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id B75015C00E4 for ; Wed, 14 Apr 2021 10:29:12 -0400 (EDT) Received: from imap1 ([10.202.2.51]) by compute4.internal (MEProxy); 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Wed, 14 Apr 2021 10:29:12 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.5.0-alpha0-273-g8500d2492d-fm-20210323.002-g8500d249 Mime-Version: 1.0 Message-Id: Date: Wed, 14 Apr 2021 10:29:12 -0400 From: "Chris Roose" To: freebsd-questions@freebsd.org Subject: NFS issues since upgrading to 13-RELEASE Content-Type: text/plain X-Rspamd-Queue-Id: 4FL4bv3kX1z3Kn7 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=transientnetworks.com header.s=fm2 header.b=RTANuDqe; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=NWhM5nom; dmarc=pass (policy=none) header.from=transientnetworks.com; spf=pass (mx1.freebsd.org: domain of chris@transientnetworks.com designates 66.111.4.27 as permitted sender) smtp.mailfrom=chris@transientnetworks.com X-Spamd-Result: default: False [-3.09 / 15.00]; XM_UA_NO_VERSION(0.01)[]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ip4:66.111.4.27]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[transientnetworks.com:+,messagingengine.com:+]; DMARC_POLICY_ALLOW(-0.50)[transientnetworks.com,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_IN_DNSWL_LOW(-0.10)[66.111.4.27:from]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:11403, ipnet:66.111.4.0/24, country:US]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[transientnetworks.com:s=fm2,messagingengine.com:s=fm2]; FREEFALL_USER(0.00)[chris]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; RWL_MAILSPIKE_VERYGOOD(0.00)[66.111.4.27:from]; MID_RHS_WWW(0.50)[]; MAILMAN_DEST(0.00)[freebsd-questions] X-Mailman-Approved-At: Wed, 14 Apr 2021 19:02:31 +0000 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Apr 2021 14:29:16 -0000 I'm having NFS availability issues between my Proxmox client and FreeBSD server (10G link) since upgrading to 13-RELEASE. And unfortunately I upgraded my ZFS pool to v2.0.0 before I noticed the issue, so I'm kind of stuck. Periodically, the NFS server (I've tried both v3 and v4.2 clients) will go unresponsive for several minutes. I never had this problem on 12.2, and as far as I can tell it's not a disk or network I/O issue. I'll get several "nfs: server not responding, still trying" messages on the client and a few minutes later it usually recovers. It's not clear to me yet what's causing the block. Restarting nfsd on the server will resolve the issue if it doesn't clear itself. Any pointers for troubleshooting this? I've been looking through vmstat, gstat, top, etc. when the problem occurs, but I haven't been able to pinpoint the issue. -- Best, Chris