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 4F4D710515 for ; Thu, 5 Dec 2013 05:30:39 +0000 (UTC) Received: (qmail 85598 invoked by uid 500); 5 Dec 2013 05:30:39 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 85415 invoked by uid 500); 5 Dec 2013 05:30:38 -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 85386 invoked by uid 99); 5 Dec 2013 05:30:37 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 05 Dec 2013 05:30:37 +0000 Date: Thu, 5 Dec 2013 05:30:37 +0000 (UTC) From: "stack (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-10079) Increments lost after flush 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-10079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839837#comment-13839837 ] stack commented on HBASE-10079: ------------------------------- +1 Above comment on the race made for a good read. Thanks. > Increments lost after flush > ---------------------------- > > Key: HBASE-10079 > URL: https://issues.apache.org/jira/browse/HBASE-10079 > Project: HBase > Issue Type: Bug > Components: regionserver > Affects Versions: 0.96.1 > Reporter: Jonathan Hsieh > Assignee: Jonathan Hsieh > Priority: Blocker > Fix For: 0.98.0, 0.96.1, 0.99.0 > > Attachments: 10079.v1.patch, hbase-10079.v2.patch > > > Testing 0.96.1rc1. > With one process incrementing a row in a table, we increment single col. We flush or do kills/kill-9 and data is lost. flush and kill are likely the same problem (kill would flush), kill -9 may or may not have the same root cause. > 5 nodes > hadoop 2.1.0 (a pre cdh5b1 hdfs). > hbase 0.96.1 rc1 > Test: 250000 increments on a single row an single col with various number of client threads (IncrementBlaster). Verify we have a count of 250000 after the run (IncrementVerifier). > Run 1: No fault injection. 5 runs. count = 250000. on multiple runs. Correctness verified. 1638 inc/s throughput. > Run 2: flushes table with incrementing row. count = 246875 !=250000. correctness failed. 1517 inc/s throughput. > Run 3: kill of rs hosting incremented row. count = 243750 != 250000. Correctness failed. 1451 inc/s throughput. > Run 4: one kill -9 of rs hosting incremented row. 246878.!= 250000. Correctness failed. 1395 inc/s (including recovery) -- This message was sent by Atlassian JIRA (v6.1#6144)