Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 7CC48F753 for ; Sat, 11 May 2013 15:37:17 +0000 (UTC) Received: (qmail 16773 invoked by uid 500); 11 May 2013 15:37:17 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 16719 invoked by uid 500); 11 May 2013 15:37:17 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 16710 invoked by uid 99); 11 May 2013 15:37:17 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 11 May 2013 15:37:17 +0000 Date: Sat, 11 May 2013 15:37:17 +0000 (UTC) From: "Devaraj Das (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-5930) Limits the amount of time an edit can live in the memstore. 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/HBASE-5930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Devaraj Das updated HBASE-5930: ------------------------------- Attachment: 5930-0.94-2.txt 5930-addendum-for-disabling.trunk.txt Patch for trunk with the config for disabling this behavior. Complete patch for 0.94. > Limits the amount of time an edit can live in the memstore. > ----------------------------------------------------------- > > Key: HBASE-5930 > URL: https://issues.apache.org/jira/browse/HBASE-5930 > Project: HBase > Issue Type: Improvement > Reporter: Lars Hofhansl > Assignee: Devaraj Das > Fix For: 0.98.0, 0.94.8, 0.95.1 > > Attachments: 5930-0.94-2.txt, 5930-0.94-added-addendum.txt, 5930-0.94.txt, 5930-1.patch, 5930-2.1.patch, 5930-2.2.patch, 5930-2.3.patch, 5930-2.4.patch, 5930-addendum-for-disabling.trunk.txt, 5930-track-oldest-sample.txt, 5930-wip.patch, HBASE-5930-ADD-0.patch, hbase-5930-addendum2.patch, hbase-5930-test-execution.log > > > A colleague of mine ran into an interesting issue. > He inserted some data with the WAL disabled, which happened to fit in the aggregate Memstores memory. > Two weeks later he a had problem with the HDFS cluster, which caused the region servers to abort. He found that his data was lost. Looking at the log we found that the Memstores were not flushed at all during these two weeks. > Should we have an option to flush memstores periodically. There are obvious downsides to this, like many small storefiles, etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira