From issues-return-75570-archive-asf-public=cust-asf.ponee.io@ignite.apache.org Fri Sep 21 15:19:05 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 922A0180671 for ; Fri, 21 Sep 2018 15:19:04 +0200 (CEST) Received: (qmail 83961 invoked by uid 500); 21 Sep 2018 13:19:03 -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 83952 invoked by uid 99); 21 Sep 2018 13:19:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 21 Sep 2018 13:19:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 66014C1B12 for ; Fri, 21 Sep 2018 13:19:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.501 X-Spam-Level: X-Spam-Status: No, score=-109.501 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, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id 4UMLZCbOd_OV for ; Fri, 21 Sep 2018 13:19:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id CBA405F535 for ; Fri, 21 Sep 2018 13:19:01 +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 EE474E262A for ; Fri, 21 Sep 2018 13:19:00 +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 6332523FA6 for ; Fri, 21 Sep 2018 13:19:00 +0000 (UTC) Date: Fri, 21 Sep 2018 13:19:00 +0000 (UTC) From: "Ivan Bessonov (JIRA)" To: issues@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (IGNITE-9599) Add ability to manage compression level for compressed WAL archives 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-9599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623610#comment-16623610 ] Ivan Bessonov commented on IGNITE-9599: --------------------------------------- [~a-polyakov] upsource review is done, it has code style notes for the most part. > Add ability to manage compression level for compressed WAL archives > ------------------------------------------------------------------- > > Key: IGNITE-9599 > URL: https://issues.apache.org/jira/browse/IGNITE-9599 > Project: Ignite > Issue Type: Improvement > Reporter: Andrey Kalinin > Assignee: Alexand Polyakov > Priority: Minor > > In some cases, WAL compression performance is not sufficient, i.e. new archives accumulate faster than old ones are compressed. > We did some tests: the file size of 1GB is compressed at the default compression level for 1 minute, the output file size is ~120MB. > After that, the compression rate was tested with compression-level=-1: 1 GB file is compressed in 13 seconds, the output file size is ~125MB. > (from the [zlib manual|https://www.zlib.net/manual.html#Basic]: > The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: 1 gives best speed, 9 gives best compression, 0 gives no compression at all (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION requests a default compromise between speed and compression (currently equivalent to level 6). > ) > So we need add an option to change the default compression level in the ignite configuration file. -- This message was sent by Atlassian JIRA (v7.6.3#76005)