From mapreduce-issues-return-93798-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org Fri Oct 18 09:20:12 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 C87A91804BB for ; Fri, 18 Oct 2019 11:20:11 +0200 (CEST) Received: (qmail 26906 invoked by uid 500); 18 Oct 2019 09:20:05 -0000 Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list mapreduce-issues@hadoop.apache.org Received: (qmail 26763 invoked by uid 99); 18 Oct 2019 09:20:05 -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, 18 Oct 2019 09:20:05 +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 7163BE3157 for ; Fri, 18 Oct 2019 09:20:04 +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 7F765780C0B for ; Fri, 18 Oct 2019 09:20:01 +0000 (UTC) Date: Fri, 18 Oct 2019 09:20:01 +0000 (UTC) From: "Peter Bacsko (Jira)" To: mapreduce-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (MAPREDUCE-6441) Improve temporary directory name generation in LocalDistributedCacheManager for concurrent processes 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/MAPREDUCE-6441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Peter Bacsko updated MAPREDUCE-6441: ------------------------------------ Attachment: MAPREDUCE-6441-branch-3.1.001.patch > Improve temporary directory name generation in LocalDistributedCacheManager for concurrent processes > ---------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-6441 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6441 > Project: Hadoop Map/Reduce > Issue Type: Bug > Reporter: William Watson > Assignee: Haibo Chen > Priority: Major > Fix For: 3.2.0 > > Attachments: HADOOP-10924.02.patch, HADOOP-10924.03.jobid-plus-uuid.patch, MAPREDUCE-6441-branch-3.1.001.patch, MAPREDUCE-6441.004.patch, MAPREDUCE-6441.005.patch, MAPREDUCE-6441.006.patch, MAPREDUCE-6441.008.patch, MAPREDUCE-6441.009.patch, MAPREDUCE-6441.010.patch, MAPREDUCE-6441.011.patch > > > Kicking off many sqoop processes in different threads results in: > {code} > 2014-08-01 13:47:24 -0400: INFO - 14/08/01 13:47:22 ERROR tool.ImportTool: Encountered IOException running import job: java.io.IOException: java.util.concurrent.ExecutionException: java.io.IOException: Rename cannot overwrite non empty destination directory /tmp/hadoop-hadoop/mapred/local/1406915233073 > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapred.LocalDistributedCacheManager.setup(LocalDistributedCacheManager.java:149) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapred.LocalJobRunner$Job.(LocalJobRunner.java:163) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapred.LocalJobRunner.submitJob(LocalJobRunner.java:731) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:432) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282) > 2014-08-01 13:47:24 -0400: INFO - at java.security.AccessController.doPrivileged(Native Method) > 2014-08-01 13:47:24 -0400: INFO - at javax.security.auth.Subject.doAs(Subject.java:415) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1303) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:186) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.mapreduce.ImportJobBase.runJob(ImportJobBase.java:159) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:239) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.manager.SqlManager.importQuery(SqlManager.java:645) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:415) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:502) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.Sqoop.run(Sqoop.java:145) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229) > 2014-08-01 13:47:24 -0400: INFO - at org.apache.sqoop.Sqoop.main(Sqoop.java:238) > {code} > If two are kicked off in the same second. The issue is the following lines of code in the org.apache.hadoop.mapred.LocalDistributedCacheManager class: > {code} > // Generating unique numbers for FSDownload. > AtomicLong uniqueNumberGenerator = > new AtomicLong(System.currentTimeMillis()); > {code} > and > {code} > Long.toString(uniqueNumberGenerator.incrementAndGet())), > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-help@hadoop.apache.org