[hadoop] branch branch-2.10 updated: HADOOP-17045. `Configuration` javadoc describes supporting environment variables, but the feature is not available.

[iw...@apache.org]

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iwasakims pushed a commit to branch branch-2.10
in repository https://gitbox.apache.org/repos/asf/hadoop.git


The following commit(s) were added to refs/heads/branch-2.10 by this push:
     new e2c7c8d  HADOOP-17045. `Configuration` javadoc describes supporting environment variables, but the feature is not available.
e2c7c8d is described below

commit e2c7c8d96f6a5e323c63c9d1b5d7a330805f717f
Author: Masatake Iwasaki <iw...@apache.org>
AuthorDate: Sun May 17 06:40:51 2020 +0900

    HADOOP-17045. `Configuration` javadoc describes supporting environment variables, but the feature is not available.
---
 .../src/main/java/org/apache/hadoop/conf/Configuration.java       | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
index de9893b..69ea280 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
@@ -173,13 +173,7 @@ import com.google.common.base.Strings;
  * will be resolved to another property in this Configuration, while
  * <tt>${<i>user.name</i>}</tt> would then ordinarily be resolved to the value
  * of the System property with that name.
- * <p>When <tt>conf.get("otherdir")</tt> is called, then <tt>${<i>env.BASE_DIR</i>}</tt>
- * will be resolved to the value of the <tt>${<i>BASE_DIR</i>}</tt> environment variable.
- * It supports <tt>${<i>env.NAME:-default</i>}</tt> and <tt>${<i>env.NAME-default</i>}</tt> notations.
- * The former is resolved to "default" if <tt>${<i>NAME</i>}</tt> environment variable is undefined
- * or its value is empty.
- * The latter behaves the same way only if <tt>${<i>NAME</i>}</tt> is undefined.
- * <p>By default, warnings will be given to any deprecated configuration 
+ * By default, warnings will be given to any deprecated configuration
  * parameters and these are suppressible by configuring
  * <tt>log4j.logger.org.apache.hadoop.conf.Configuration.deprecation</tt> in
  * log4j.properties file.


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