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From ma...@apache.org
Subject svn commit: r1393290 - in /hadoop/common/branches/branch-1.0: CHANGES.txt src/docs/releasenotes.html
Date Wed, 03 Oct 2012 04:58:34 GMT
Author: mattf
Date: Wed Oct  3 04:58:34 2012
New Revision: 1393290

URL: http://svn.apache.org/viewvc?rev=1393290&view=rev
prepare for 1.0.4 release


Modified: hadoop/common/branches/branch-1.0/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-1.0/CHANGES.txt?rev=1393290&r1=1393289&r2=1393290&view=diff
--- hadoop/common/branches/branch-1.0/CHANGES.txt (original)
+++ hadoop/common/branches/branch-1.0/CHANGES.txt Wed Oct  3 04:58:34 2012
@@ -1,6 +1,6 @@
 Hadoop Change Log
-Release 1.0.4 - Unreleased
+Release 1.0.4 - 2012.10.02

Modified: hadoop/common/branches/branch-1.0/src/docs/releasenotes.html
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-1.0/src/docs/releasenotes.html?rev=1393290&r1=1393289&r2=1393290&view=diff
--- hadoop/common/branches/branch-1.0/src/docs/releasenotes.html (original)
+++ hadoop/common/branches/branch-1.0/src/docs/releasenotes.html Wed Oct  3 04:58:34 2012
@@ -2,7 +2,7 @@
 <META http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Hadoop 1.0.3 Release Notes</title>
+<title>Hadoop 1.0.4 Release Notes</title>
 <STYLE type="text/css">
 		H1 {font-family: sans-serif}
 		H2 {font-family: sans-serif; margin-left: 7mm}
@@ -10,11 +10,41 @@
-<h1>Hadoop 1.0.3 Release Notes</h1>
+<h1>Hadoop 1.0.4 Release Notes</h1>
 		These release notes include new developer and user-facing incompatibilities, features,
and major improvements. 
 <a name="changes"/>
+<h2>Changes since Hadoop 1.0.3</h2>
+<h3>Jiras with Release Notes (describe major or incompatible changes)</h3>
+<h3>Other Jiras (describe bug fixes and minor changes)</h3>
+<li> <a href="https://issues.apache.org/jira/browse/HADOOP-7154">HADOOP-7154</a>.
+     Minor improvement reported by tlipcon and fixed by tlipcon (scripts)<br>
+     <b>Should set MALLOC_ARENA_MAX in hadoop-config.sh</b><br>
+     <blockquote>New versions of glibc present in RHEL6 include a new arena allocator
design. In several clusters we&apos;ve seen this new allocator cause huge amounts of virtual
memory to be used, since when multiple threads perform allocations, they each get their own
memory arena. On a 64-bit system, these arenas are 64M mappings, and the maximum number of
arenas is 8 times the number of cores. We&apos;ve observed a DN process using 14GB of
vmem for only 300M of resident set. This causes all kinds of nasty issues fo...</blockquote></li>
+<li> <a href="https://issues.apache.org/jira/browse/HDFS-3652">HDFS-3652</a>.
+     Blocker bug reported by tlipcon and fixed by tlipcon (name-node)<br>
+     <b>1.x: FSEditLog failure removes the wrong edit stream when storage dirs have
same name</b><br>
+     <blockquote>In {{FSEditLog.removeEditsForStorageDir}}, we iterate over the edits
streams trying to find the stream corresponding to a given dir. To check equality, we currently
use the following condition:<br>{code}<br>      File parentDir = getStorageDirForStream(idx);<br>
     if (parentDir.getName().equals(sd.getRoot().getName())) {<br>{code}<br>...
which is horribly incorrect. If two or more storage dirs happen to have the same terminal
path component (eg /data/1/nn and /data/2/nn) then it will pick the wrong strea...</blockquote></li>
+<li> <a href="https://issues.apache.org/jira/browse/MAPREDUCE-4399">MAPREDUCE-4399</a>.
+     Major bug reported by vicaya and fixed by vicaya (performance, tasktracker)<br>
+     <b>Fix performance regression in shuffle </b><br>
+     <blockquote>There is a significant (up to 3x) performance regression in shuffle
(vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.</blockquote></li>
 <h2>Changes since Hadoop 1.0.2</h2>
 <h3>Jiras with Release Notes (describe major or incompatible changes)</h3>

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