Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6EB4817EA5 for ; Mon, 11 May 2015 06:18:00 +0000 (UTC) Received: (qmail 29038 invoked by uid 500); 11 May 2015 06:18:00 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 28980 invoked by uid 500); 11 May 2015 06:18:00 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 28969 invoked by uid 99); 11 May 2015 06:18:00 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 11 May 2015 06:18:00 +0000 Date: Mon, 11 May 2015 06:17:59 +0000 (UTC) From: "Walter Su (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-8365) Erasure Coding: Badly treated when short of Datanode in StripedDataStreamer 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/HDFS-8365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Walter Su updated HDFS-8365: ---------------------------- Description: Currently, each innerBlock of blockGroup should put on different node. One node can't has 2 innerBlock. If one node has 2 innerBlock, we have blockReport issue. The first reported innerBlock will be added to triplets, but the second won't. If we decide to not to support 2 innerBlock in one node. We should handle this situation, and output warning friendly. When there are only 8 DN, and ECSchema is RS-6-3 {noformat} # bin/hdfs dfs -put README.txt /ecdir 15/05/11 13:48:30 WARN hdfs.DataStreamer: DataStreamer Exception java.lang.NullPointerException at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#0: isFailed? f, null@null java.io.IOException: java.lang.NullPointerException at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.set(DataStreamer.java:183) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:571) at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) Caused by: java.lang.NullPointerException at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) ... 1 more 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#1: isFailed? f, null@null java.nio.channels.ClosedChannelException at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.throwException4Close(DataStreamer.java:208) at org.apache.hadoop.hdfs.DFSOutputStream.checkClosed(DFSOutputStream.java:146) at org.apache.hadoop.hdfs.DFSOutputStream.flushInternal(DFSOutputStream.java:713) {noformat} was: Currently, each innerBlock of blockGroup should put on different node. One node can has 2 innerBlock. If one node has 2 innerBlock, we have blockReport issue. The first reported innerBlock will be added to triplets, but the second won't. If we decide to not to support 2 innerBlock in one node. We should handle this situation, and output warning friendly. When there are only 8 DN, and ECSchema is RS-6-3 {noformat} # bin/hdfs dfs -put README.txt /ecdir 15/05/11 13:48:30 WARN hdfs.DataStreamer: DataStreamer Exception java.lang.NullPointerException at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#0: isFailed? f, null@null java.io.IOException: java.lang.NullPointerException at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.set(DataStreamer.java:183) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:571) at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) Caused by: java.lang.NullPointerException at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) ... 1 more 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#1: isFailed? f, null@null java.nio.channels.ClosedChannelException at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.throwException4Close(DataStreamer.java:208) at org.apache.hadoop.hdfs.DFSOutputStream.checkClosed(DFSOutputStream.java:146) at org.apache.hadoop.hdfs.DFSOutputStream.flushInternal(DFSOutputStream.java:713) {noformat} > Erasure Coding: Badly treated when short of Datanode in StripedDataStreamer > --------------------------------------------------------------------------- > > Key: HDFS-8365 > URL: https://issues.apache.org/jira/browse/HDFS-8365 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Walter Su > Assignee: Walter Su > > Currently, each innerBlock of blockGroup should put on different node. One node can't has 2 innerBlock. > If one node has 2 innerBlock, we have blockReport issue. The first reported innerBlock will be added to triplets, but the second won't. > If we decide to not to support 2 innerBlock in one node. We should handle this situation, and output warning friendly. > When there are only 8 DN, and ECSchema is RS-6-3 > {noformat} > # bin/hdfs dfs -put README.txt /ecdir > 15/05/11 13:48:30 WARN hdfs.DataStreamer: DataStreamer Exception > java.lang.NullPointerException > at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) > at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) > at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) > at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) > at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) > at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) > 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#0: isFailed? f, null@null > java.io.IOException: java.lang.NullPointerException > at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.set(DataStreamer.java:183) > at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:571) > at org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:48) > Caused by: java.lang.NullPointerException > at java.util.concurrent.LinkedBlockingQueue.offer(LinkedBlockingQueue.java:410) > at org.apache.hadoop.hdfs.DFSStripedOutputStream$Coordinator.putStripedBlock(DFSStripedOutputStream.java:115) > at org.apache.hadoop.hdfs.StripedDataStreamer.locateFollowingBlock(StripedDataStreamer.java:120) > at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1360) > at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:457) > ... 1 more > 15/05/11 13:48:30 WARN hdfs.DFSOutputStream: Failed: closeImpl, DFSStripedOutputStream:#1: isFailed? f, null@null > java.nio.channels.ClosedChannelException > at org.apache.hadoop.hdfs.DataStreamer$LastExceptionInStreamer.throwException4Close(DataStreamer.java:208) > at org.apache.hadoop.hdfs.DFSOutputStream.checkClosed(DFSOutputStream.java:146) > at org.apache.hadoop.hdfs.DFSOutputStream.flushInternal(DFSOutputStream.java:713) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)