From issues-return-100020-archive-asf-public=cust-asf.ponee.io@ignite.apache.org Fri Oct 4 09:30:03 2019 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 [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id AAC17180651 for ; Fri, 4 Oct 2019 11:30:02 +0200 (CEST) Received: (qmail 91863 invoked by uid 500); 4 Oct 2019 09:30:02 -0000 Mailing-List: contact issues-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list issues@ignite.apache.org Received: (qmail 91849 invoked by uid 99); 4 Oct 2019 09:30:02 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 04 Oct 2019 09:30:02 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 6C8B6E2F4F for ; Fri, 4 Oct 2019 09:30:01 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 472E978077D for ; Fri, 4 Oct 2019 09:30:00 +0000 (UTC) Date: Fri, 4 Oct 2019 09:30:00 +0000 (UTC) From: "Ignite TC Bot (Jira)" To: issues@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (IGNITE-11704) Write tombstones during rebalance to get rid of deferred delete buffer MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/IGNITE-11704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16944348#comment-16944348 ] Ignite TC Bot commented on IGNITE-11704: ---------------------------------------- {panel:title=Branch: [pull/6931/head] Base: [master] : No blockers found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel} [TeamCity *--> Run :: All* Results|https://ci.ignite.apache.org/viewLog.html?buildId=4657057&buildTypeId=IgniteTests24Java8_RunAll] > Write tombstones during rebalance to get rid of deferred delete buffer > ---------------------------------------------------------------------- > > Key: IGNITE-11704 > URL: https://issues.apache.org/jira/browse/IGNITE-11704 > Project: Ignite > Issue Type: Improvement > Reporter: Alexey Goncharuk > Assignee: Pavel Kovalenko > Priority: Major > Labels: rebalance > Fix For: 2.8 > > Time Spent: 10m > Remaining Estimate: 0h > > Currently Ignite relies on deferred delete buffer in order to handle write-remove conflicts during rebalance. Given the limit size of the buffer, this approach is fundamentally flawed, especially in case when persistence is enabled. > I suggest to extend the logic of data storage to be able to store key tombstones - to keep version for deleted entries. The tombstones will be stored when rebalance is in progress and should be cleaned up when rebalance is completed. > Later this approach may be used to implement fast partition rebalance based on merkle trees (in this case, tombstones should be written on an incomplete baseline). -- This message was sent by Atlassian Jira (v8.3.4#803005)