Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-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 38FD819A4C for ; Fri, 1 Apr 2016 15:43:26 +0000 (UTC) Received: (qmail 11669 invoked by uid 500); 1 Apr 2016 15:43:25 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 11605 invoked by uid 500); 1 Apr 2016 15:43:25 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 11572 invoked by uid 99); 1 Apr 2016 15:43:25 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 01 Apr 2016 15:43:25 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 7659C2C14F6 for ; Fri, 1 Apr 2016 15:43:25 +0000 (UTC) Date: Fri, 1 Apr 2016 15:43:25 +0000 (UTC) From: "John Zhuge (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HADOOP-12990) lz4 incompatibility between OS and Hadoop MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 John Zhuge created HADOOP-12990: ----------------------------------- Summary: lz4 incompatibility between OS and Hadoop Key: HADOOP-12990 URL: https://issues.apache.org/jira/browse/HADOOP-12990 Project: Hadoop Common Issue Type: Bug Components: io, native Affects Versions: 2.6.0 Reporter: John Zhuge Priority: Minor {{hdfs dfs -text}} hit exception when trying to view the compression file created by Linux lz4 tool. The Hadoop version has HADOOP-11184 "update lz4 to r123", thus it is using LZ4 library in release r123. Linux lz4 version: {code} $ /tmp/lz4 -h 2>&1 | head -1 *** LZ4 Compression CLI 64-bits r123, by Yann Collet (Apr 1 2016) *** {code} Test steps: {code} $ cat 10rows.txt 001|c1|c2|c3|c4|c5|c6|c7|c8|c9 002|c1|c2|c3|c4|c5|c6|c7|c8|c9 003|c1|c2|c3|c4|c5|c6|c7|c8|c9 004|c1|c2|c3|c4|c5|c6|c7|c8|c9 005|c1|c2|c3|c4|c5|c6|c7|c8|c9 006|c1|c2|c3|c4|c5|c6|c7|c8|c9 007|c1|c2|c3|c4|c5|c6|c7|c8|c9 008|c1|c2|c3|c4|c5|c6|c7|c8|c9 009|c1|c2|c3|c4|c5|c6|c7|c8|c9 010|c1|c2|c3|c4|c5|c6|c7|c8|c9 $ /tmp/lz4 10rows.txt 10rows.txt.r123.lz4 Compressed 310 bytes into 105 bytes ==> 33.87% $ hdfs dfs -put 10rows.txt.r123.lz4 /tmp $ hdfs dfs -text /tmp/10rows.txt.r123.lz4 16/04/01 08:19:07 INFO compress.CodecPool: Got brand-new decompressor [.lz4] Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at org.apache.hadoop.io.compress.BlockDecompressorStream.getCompressedData(BlockDecompressorStream.java:123) at org.apache.hadoop.io.compress.BlockDecompressorStream.decompress(BlockDecompressorStream.java:98) at org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:85) at java.io.InputStream.read(InputStream.java:101) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:85) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:59) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:119) at org.apache.hadoop.fs.shell.Display$Cat.printToStdout(Display.java:106) at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:101) at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:317) at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:289) at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:271) at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:255) at org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:118) at org.apache.hadoop.fs.shell.Command.run(Command.java:165) at org.apache.hadoop.fs.FsShell.run(FsShell.java:315) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84) at org.apache.hadoop.fs.FsShell.main(FsShell.java:372) {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)