diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 6c7f59abde..b11d4ab8a0 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -287,6 +287,8 @@ Release 2.3.0 - UNRELEASED
IMPROVEMENTS
+ HADOOP-9241. DU refresh interval is not configurable (harsh)
+
OPTIMIZATIONS
BUG FIXES
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
index c4927e52a8..42bd92858c 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
@@ -54,6 +54,10 @@ public class CommonConfigurationKeysPublic {
public static final String FS_DF_INTERVAL_KEY = "fs.df.interval";
/** Default value for FS_DF_INTERVAL_KEY */
public static final long FS_DF_INTERVAL_DEFAULT = 60000;
+ /** See core-default.xml */
+ public static final String FS_DU_INTERVAL_KEY = "fs.du.interval";
+ /** Default value for FS_DU_INTERVAL_KEY */
+ public static final long FS_DU_INTERVAL_DEFAULT = 600000;
//Defaults are not specified for following keys
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DU.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DU.java
index db90cfa7aa..3fa5510036 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DU.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DU.java
@@ -20,6 +20,7 @@
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.util.Shell;
import java.io.BufferedReader;
@@ -64,8 +65,8 @@ public DU(File path, long interval) throws IOException {
* @throws IOException if we fail to refresh the disk usage
*/
public DU(File path, Configuration conf) throws IOException {
- this(path, 600000L);
- //10 minutes default refresh interval
+ this(path, conf.getLong(CommonConfigurationKeys.FS_DU_INTERVAL_KEY,
+ CommonConfigurationKeys.FS_DU_INTERVAL_DEFAULT));
}
/**
diff --git a/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml b/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
index c744986acd..b23503779a 100644
--- a/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
+++ b/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
@@ -464,6 +464,12 @@
Disk usage statistics refresh interval in msec.
+
+ fs.du.interval
+ 600000
+ File space usage statistics refresh interval in msec.
+
+
fs.s3.block.size
67108864
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestDU.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestDU.java
index 71024acd9e..ef59b85bd3 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestDU.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestDU.java
@@ -24,6 +24,9 @@
import java.io.RandomAccessFile;
import java.util.Random;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+
/** This test makes sure that "DU" does not get to run on each call to getUsed */
public class TestDU extends TestCase {
final static private File DU_DIR = new File(
@@ -106,7 +109,9 @@ public void testDU() throws IOException, InterruptedException {
public void testDUGetUsedWillNotReturnNegative() throws IOException {
File file = new File(DU_DIR, "data");
assertTrue(file.createNewFile());
- DU du = new DU(file, 10000);
+ Configuration conf = new Configuration();
+ conf.setLong(CommonConfigurationKeys.FS_DU_INTERVAL_KEY, 10000L);
+ DU du = new DU(file, conf);
du.decDfsUsed(Long.MAX_VALUE);
long duSize = du.getUsed();
assertTrue(String.valueOf(duSize), duSize >= 0L);