From fanf2@hermes.cam.ac.uk Wed Dec 9 11:27:44 2015 CC: "Tony Finch" MIME-Version: 1.0 X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,T_RP_MATCHES_RCVD autolearn=ham autolearn_force=no version=3.4.0 X-Cam-Antivirus: no malware found content-type: TEXT/PLAIN; charset="utf-8" Message-ID: X-X-Sender: fanf2@hermes-2.csi.cam.ac.uk Received: from mx.ams1.isc.org (mx.ams1.isc.org [IPv6:2001:500:60::65]) by bugs.isc.org (Postfix) with ESMTP id 7519771B586 for ; Wed, 9 Dec 2015 11:27:44 +0000 (UTC) Received: from ppsw-41.csi.cam.ac.uk (ppsw-41.csi.cam.ac.uk [131.111.8.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx.ams1.isc.org (Postfix) with ESMTPS id 28C8A1FCE12 for ; Wed, 9 Dec 2015 11:27:42 +0000 (UTC) Received: from hermes-2.csi.cam.ac.uk ([131.111.8.54]:35323) by ppsw-41.csi.cam.ac.uk (smtp.hermes.cam.ac.uk [131.111.8.157]:25) with esmtpa (EXTERNAL:fanf2) id 1a6cuL-0004mL-Qj (Exim 4.86_36-e07b163) (return-path ); Wed, 09 Dec 2015 11:27:41 +0000 Received: from fanf2 by hermes-2.csi.cam.ac.uk (hermes.cam.ac.uk) with local id 1a6cuL-0003yU-7t (Exim 4.72) (return-path ); Wed, 09 Dec 2015 11:27:41 +0000 Delivered-To: bind9-bugs@bugs.isc.org Subject: Over-active checkhints logging User-Agent: Alpine 2.00 (LSU 1167 2008-08-23) Return-Path: X-Original-To: bind9-bugs@bugs.isc.org Sender: "Tony Finch" Date: Wed, 9 Dec 2015 11:27:41 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mx.ams1.isc.org To: bind9-bugs@isc.org X-Cam-Scannerinfo: http://www.cam.ac.uk/cs/email/scanner/ From: "Tony Finch" X-RT-Original-Encoding: ascii X-RT-Interface: Email Content-Length: 1102 My recursive servers sometimes go mad logging checkhints complaints at a very high rate. Apart from this, they are working OK. They aren't logging like this all the time - it stops and starts. Below is the output from the following command on each server: $ sed '/checkhints/!d;s/:.*//' /home/named/log/named.log | uniq -c recdns0 2 05-Dec-2015 10 2476 05-Dec-2015 13 4098 05-Dec-2015 14 3662 05-Dec-2015 15 1798 05-Dec-2015 16 1806 05-Dec-2015 20 490 05-Dec-2015 21 4356 05-Dec-2015 23 16 07-Dec-2015 00 630 07-Dec-2015 10 2614 07-Dec-2015 11 2728 07-Dec-2015 13 40 09-Dec-2015 00 200 09-Dec-2015 01 recdns1 4501 05-Dec-2015 17 4734 05-Dec-2015 18 2472 05-Dec-2015 19 3588 05-Dec-2015 20 184 07-Dec-2015 12 2176 07-Dec-2015 13 544 07-Dec-2015 19 4540 08-Dec-2015 12 116 08-Dec-2015 13 Tony. -- f.anthony.n.finch http://dotat.at/ Thames, Dover, Wight, Portland, Plymouth: West or southwest 5 to 7, occasionally gale 8 later. Moderate or rough, occasionally very rough in Plymouth. Fair. Good.