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 549CB1844B for ; Fri, 8 May 2015 22:36:01 +0000 (UTC) Received: (qmail 36022 invoked by uid 500); 8 May 2015 22:36:00 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 35983 invoked by uid 500); 8 May 2015 22:36:00 -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 35868 invoked by uid 99); 8 May 2015 22:36:00 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 08 May 2015 22:36:00 +0000 Date: Fri, 8 May 2015 22:36:00 +0000 (UTC) From: "Matteo Bertozzi (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-13651) Handle StoreFileScanner FileNotFoundException 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-13651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Matteo Bertozzi updated HBASE-13651: ------------------------------------ Attachment: HBASE-13651-draft.patch > Handle StoreFileScanner FileNotFoundException > --------------------------------------------- > > Key: HBASE-13651 > URL: https://issues.apache.org/jira/browse/HBASE-13651 > Project: HBase > Issue Type: Bug > Affects Versions: 0.94.27, 0.98.10.1 > Reporter: Matteo Bertozzi > Assignee: Matteo Bertozzi > Priority: Minor > Attachments: HBASE-13651-draft.patch > > > Example: > * Machine-1 is serving Region-X and start compaction > * Machine-1 goes in GC pause > * Region-X gets reassigned to Machine-2 > * Machine-2 exit from the GC pause > * Machine-2 (re)moves the compacted files > * Machine-2 get the lease and shutdown > Machine-2 has now tons of FileNotFoundException on scan. If we reassign the region everything is ok, because we pickup the files compacted by Machine-1. > This problem doesn't happen in the new code 1.0+ (i think but I haven't checked, it may be 1.1) where we write on the WAL the compaction event before (re)moving the files. > A workaround is handling FileNotFoundException and refresh the store files, or shutdown the region and reassign. the first one is easy in 1.0+ the second one requires more work because at the moment we don't have the code to notify the master that the RS is closing the region, alternatively we can shutdown the entire RS (it is not a good solution but the case is rare enough) -- This message was sent by Atlassian JIRA (v6.3.4#6332)