Author: bobby
Date: Fri Jun 1 18:19:02 2012
New Revision: 1345306
URL: http://svn.apache.org/viewvc?rev=1345306&view=rev
Log:
svn merge -c 1345304. FIXES: HADOOP-8460. Document proper setting of
HADOOP_PID_DIR and HADOOP_SECURE_DN_PID_DIR (bobby)
Modified:
hadoop/common/branches/branch-2/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
Modified:
hadoop/common/branches/branch-2/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm?rev=1345306&r1=1345305&r2=1345306&view=diff
==============================================================================
---
hadoop/common/branches/branch-2/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
(original)
+++
hadoop/common/branches/branch-2/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
Fri Jun 1 18:19:02 2012
@@ -85,6 +85,11 @@ Hadoop MapReduce Next Generation - Clust
At the very least you should specify the <<<JAVA_HOME>>> so that it is
correctly defined on each remote node.
+ In most cases you should also specify <<<HADOOP_PID_DIR>>> and
+ <<<HADOOP_SECURE_DN_PID_DIR>>> to point to directories that can only be
+ written to by the users that are going to run the hadoop daemons.
+ Otherwise there is the potential for a symlink attack.
+
Administrators can configure individual daemons using the configuration
options shown below in the table:
