Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 04FFE200D16 for ; Mon, 25 Sep 2017 20:05:05 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 03AFF1609B5; Mon, 25 Sep 2017 18:05:05 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 489381609BB for ; Mon, 25 Sep 2017 20:05:04 +0200 (CEST) Received: (qmail 41559 invoked by uid 500); 25 Sep 2017 18:05:03 -0000 Mailing-List: contact dev-help@phoenix.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@phoenix.apache.org Delivered-To: mailing list dev@phoenix.apache.org Received: (qmail 41522 invoked by uid 99); 25 Sep 2017 18:05:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 25 Sep 2017 18:05:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id DFCF3182C89 for ; Mon, 25 Sep 2017 18:05:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id nwUGeX9Bhfhy for ; Mon, 25 Sep 2017 18:05:02 +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 0000D5FDBC for ; Mon, 25 Sep 2017 18:05:01 +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 06A2CE0EF8 for ; Mon, 25 Sep 2017 18:05:01 +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 6536824266 for ; Mon, 25 Sep 2017 18:05:00 +0000 (UTC) Date: Mon, 25 Sep 2017 18:05:00 +0000 (UTC) From: "James Taylor (JIRA)" To: dev@phoenix.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (PHOENIX-4214) Scans which write should not block region split or close MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Mon, 25 Sep 2017 18:05:05 -0000 [ https://issues.apache.org/jira/browse/PHOENIX-4214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] James Taylor reassigned PHOENIX-4214: ------------------------------------- Assignee: Vincent Poon > Scans which write should not block region split or close > -------------------------------------------------------- > > Key: PHOENIX-4214 > URL: https://issues.apache.org/jira/browse/PHOENIX-4214 > Project: Phoenix > Issue Type: Bug > Affects Versions: 4.12.0 > Reporter: Vincent Poon > Assignee: Vincent Poon > Attachments: PHOENIX-4214.master.v1.patch, splitDuringUpsertSelect_wip.patch > > > PHOENIX-3111 introduced a scan reference counter which is checked during region preSplit and preClose. However, a steady stream of UPSERT SELECT or DELETE can keep the count above 0 indefinitely, preventing or greatly delaying a region split or close. > We should try to avoid starvation of the split / close request, and fail/reject queries where appropriate. -- This message was sent by Atlassian JIRA (v6.4.14#64029)