From issues-return-92912-archive-asf-public=cust-asf.ponee.io@cloudstack.apache.org Tue Jun 26 14:57:04 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 62753180662 for ; Tue, 26 Jun 2018 14:57:04 +0200 (CEST) Received: (qmail 12544 invoked by uid 500); 26 Jun 2018 12:57:03 -0000 Mailing-List: contact issues-help@cloudstack.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cloudstack.apache.org Delivered-To: mailing list issues@cloudstack.apache.org Received: (qmail 12530 invoked by uid 500); 26 Jun 2018 12:57:03 -0000 Delivered-To: apmail-incubator-cloudstack-issues@incubator.apache.org Received: (qmail 12526 invoked by uid 99); 26 Jun 2018 12:57:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 26 Jun 2018 12:57:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id 0E9AF1A09E3 for ; Tue, 26 Jun 2018 12:57:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.5 X-Spam-Level: X-Spam-Status: No, score=-109.5 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id fwB6_va6sMfz for ; Tue, 26 Jun 2018 12:57:01 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id CA8EB5F356 for ; Tue, 26 Jun 2018 12:57:00 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 5C851E092E for ; Tue, 26 Jun 2018 12:57:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 1AA9D23F99 for ; Tue, 26 Jun 2018 12:57:00 +0000 (UTC) Date: Tue, 26 Jun 2018 12:57:00 +0000 (UTC) From: "ASF GitHub Bot (JIRA)" To: cloudstack-issues@incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CLOUDSTACK-10310) KVM hosts reboot if there is a short transient storage error MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/CLOUDSTACK-10310?page=3Dcom.atl= assian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId= =3D16523684#comment-16523684 ]=20 ASF GitHub Bot commented on CLOUDSTACK-10310: --------------------------------------------- blueorangutan commented on issue #2722: CLOUDSTACK-10310 Fix KVM reboot on = storage issue URL: https://github.com/apache/cloudstack/pull/2722#issuecomment-400297724 =20 =20 Packaging result: =E2=9C=94centos6 =E2=9C=94centos7 =E2=9C=94debian. JID= -2154 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. =20 For queries about this service, please contact Infrastructure at: users@infra.apache.org > KVM hosts reboot if there is a short transient storage error > ------------------------------------------------------------ > > Key: CLOUDSTACK-10310 > URL: https://issues.apache.org/jira/browse/CLOUDSTACK-103= 10 > Project: CloudStack > Issue Type: Improvement > Security Level: Public(Anyone can view this level - this is the defa= ult.)=20 > Components: KVM > Affects Versions: 4.9.0, 4.10.0.0 > Reporter: Sean Lair > Priority: Major > > If the KVM heartbeat file can't be written to, the host is rebooted, and = thus taking down all VMs running on it.=C2=A0 The code does try 5x times be= fore the reboot, but the there is not a delay between the retires, so they = are 5 simultaneous retries, which doesn't help.=C2=A0 Standard SAN storage = HA operations or quick network blip could cause this reboot to occur. > Some discussions on the dev mailing list revealed that some people are ju= st commenting out the reboot line in their version of the CloudStack source= . > A better option (and a new PR is being issued) would be have it sleep bet= ween tries so it isn't 5x almost simultaneous tries.=C2=A0 Plus, instead of= rebooting, the cloudstack-agent could just be stopped on the host instead.= =C2=A0 This will cause alerts to be issued and if the host is disconnected = long-enough, depending on the HA code in use, VM HA could handle the host f= ailure. > The built-in reboot of the host seemed drastic -- This message was sent by Atlassian JIRA (v7.6.3#76005)