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HDFS-4830. Typo in config settings for AvailableSpaceVolumeChoosingPolicy in hdfs-default.xml. Contributed by Aaron T. Myers. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1483604 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2013-05-16 23:23:48 +00:00
parent 59a272eae6
commit 815f2d7236
4 changed files with 24 additions and 24 deletions
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8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -381,10 +381,10 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final String DFS_DATANODE_PLUGINS_KEY = "dfs.datanode.plugins";
public static final String DFS_DATANODE_FSDATASET_FACTORY_KEY = "dfs.datanode.fsdataset.factory";
public static final String DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_POLICY_KEY = "dfs.datanode.fsdataset.volume.choosing.policy";
public static final String DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY = "dfs.datanode.available-space-volume-choosing-policy.balanced-space-threshold";
public static final long DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_DEFAULT = 1024L * 1024L * 1024L * 10L; // 10 GB
public static final String DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY = "dfs.datanode.available-space-volume-choosing-policy.balanced-space-preference-percent";
public static final float DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_DEFAULT = 0.75f;
public static final String DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY = "dfs.datanode.available-space-volume-choosing-policy.balanced-space-threshold";
public static final long DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_DEFAULT = 1024L * 1024L * 1024L * 10L; // 10 GB
public static final String DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY = "dfs.datanode.available-space-volume-choosing-policy.balanced-space-preference-fraction";
public static final float DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_DEFAULT = 0.75f;
public static final String DFS_DATANODE_SOCKET_WRITE_TIMEOUT_KEY = "dfs.datanode.socket.write.timeout";
public static final String DFS_DATANODE_STARTUP_KEY = "dfs.datanode.startup";
public static final String DFS_NAMENODE_PLUGINS_KEY = "dfs.namenode.plugins";

28
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/AvailableSpaceVolumeChoosingPolicy.java
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@ -17,10 +17,10 @@
*/
package org.apache.hadoop.hdfs.server.datanode.fsdataset;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY;
import java.io.IOException;
import java.util.ArrayList;
@ -47,31 +47,31 @@ public class AvailableSpaceVolumeChoosingPolicy<V extends FsVolumeSpi>
private static final Random RAND = new Random();
private long balancedSpaceThreshold = DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_DEFAULT;
private float balancedPreferencePercent = DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_DEFAULT;
private long balancedSpaceThreshold = DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_DEFAULT;
private float balancedPreferencePercent = DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_DEFAULT;
@Override
public synchronized void setConf(Configuration conf) {
balancedSpaceThreshold = conf.getLong(
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY,
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_DEFAULT);
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY,
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_DEFAULT);
balancedPreferencePercent = conf.getFloat(
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY,
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_DEFAULT);
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY,
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_DEFAULT);
LOG.info("Available space volume choosing policy initialized: " +
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY +
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY +
" = " + balancedSpaceThreshold + ", " +
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY +
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY +
" = " + balancedPreferencePercent);
if (balancedPreferencePercent > 1.0) {
LOG.warn("The value of " + DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY +
LOG.warn("The value of " + DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY +
" is greater than 1.0 but should be in the range 0.0 - 1.0");
}
if (balancedPreferencePercent < 0.5) {
LOG.warn("The value of " + DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY +
LOG.warn("The value of " + DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY +
" is less than 0.5 so volumes with less available disk space will receive more block allocations");
}
}

4
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
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@ -1263,7 +1263,7 @@
</property>
<property>
<name>dfs.datanode.fsdataset.volume.choosing.balanced-space-threshold</name>
<name>dfs.datanode.available-space-volume-choosing-policy.balanced-space-threshold</name>
<value>10737418240</value> <!-- 10 GB -->
<description>
Only used when the dfs.datanode.fsdataset.volume.choosing.policy is set to
@ -1277,7 +1277,7 @@
</property>
<property>
<name>dfs.datanode.fsdataset.volume.choosing.balanced-space-preference-percent</name>
<name>dfs.datanode.available-space-volume-choosing-policy.balanced-space-preference-fraction</name>
<value>0.75f</value>
<description>
Only used when the dfs.datanode.fsdataset.volume.choosing.policy is set to

8
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/TestAvailableSpaceVolumeChoosingPolicy.java
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@ -17,8 +17,8 @@
*/
package org.apache.hadoop.hdfs.server.datanode.fsdataset;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY;
import java.util.ArrayList;
import java.util.List;
@ -43,10 +43,10 @@ public class TestAvailableSpaceVolumeChoosingPolicy {
Configuration conf = new Configuration();
// Set the threshold to consider volumes imbalanced to 1MB
conf.setLong(
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_THRESHOLD_KEY,
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_THRESHOLD_KEY,
1024 * 1024); // 1MB
conf.setFloat(
DFS_DATANODE_FSDATASET_VOLUME_CHOOSING_BALANCED_SPACE_PREFERENCE_PERCENT_KEY,
DFS_DATANODE_AVAILABLE_SPACE_VOLUME_CHOOSING_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY,
preferencePercent);
((Configurable) policy).setConf(conf);
}