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Merged from trunk for HDFS-3819. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1376360 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jitendra Nath Pandey 2012-08-23 04:05:12 +00:00
parent 6e831b0f5e
commit 041a1e0a52
3 changed files with 50 additions and 6 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -224,6 +224,9 @@ Release 2.0.1-alpha - UNRELEASED
HDFS-3832. Remove protocol methods related to DistributedUpgrade. (suresh) HDFS-3832. Remove protocol methods related to DistributedUpgrade. (suresh)
HDFS-3819. Should check whether invalidate work percentage default value is
not greater than 1.0f. (Jing Zhao via jitendra)
OPTIMIZATIONS OPTIMIZATIONS
HDFS-2982. Startup performance suffers when there are many edit log HDFS-2982. Startup performance suffers when there are many edit log

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
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@ -1162,11 +1162,11 @@ public class DFSUtil {
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION,
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION_DEFAULT); DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION_DEFAULT);
Preconditions.checkArgument( Preconditions.checkArgument(
(blocksInvalidateWorkPct > 0), (blocksInvalidateWorkPct > 0 && blocksInvalidateWorkPct <= 1.0f),
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION + DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION +
" = '" + blocksInvalidateWorkPct + "' is invalid. " + " = '" + blocksInvalidateWorkPct + "' is invalid. " +
"It should be a positive, non-zero float value " + "It should be a positive, non-zero float value, not greater than 1.0f, " +
"indicating a percentage."); "to indicate a percentage.");
return blocksInvalidateWorkPct; return blocksInvalidateWorkPct;
} }

45
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
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@ -598,7 +598,7 @@ public class TestReplicationPolicy {
* This testcase tests whether the default value returned by * This testcase tests whether the default value returned by
* DFSUtil.getInvalidateWorkPctPerIteration() is positive, * DFSUtil.getInvalidateWorkPctPerIteration() is positive,
* and whether an IllegalArgumentException will be thrown * and whether an IllegalArgumentException will be thrown
* when a non-positive value is retrieved * when 0.0f is retrieved
*/ */
@Test @Test
public void testGetInvalidateWorkPctPerIteration() { public void testGetInvalidateWorkPctPerIteration() {
@ -613,7 +613,48 @@ public class TestReplicationPolicy {
assertEquals(blocksInvalidateWorkPct, 0.5f, blocksInvalidateWorkPct * 1e-7); assertEquals(blocksInvalidateWorkPct, 0.5f, blocksInvalidateWorkPct * 1e-7);
conf.set(DFSConfigKeys. conf.set(DFSConfigKeys.
DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, "0.0"); DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, "1.0f");
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
assertEquals(blocksInvalidateWorkPct, 1.0f, blocksInvalidateWorkPct * 1e-7);
conf.set(DFSConfigKeys.
DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, "0.0f");
exception.expect(IllegalArgumentException.class);
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
}
/**
* This testcase tests whether an IllegalArgumentException
* will be thrown when a negative value is retrieved by
* DFSUtil#getInvalidateWorkPctPerIteration
*/
@Test
public void testGetInvalidateWorkPctPerIteration_NegativeValue() {
Configuration conf = new Configuration();
float blocksInvalidateWorkPct = DFSUtil
.getInvalidateWorkPctPerIteration(conf);
assertTrue(blocksInvalidateWorkPct > 0);
conf.set(DFSConfigKeys.
DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, "-0.5f");
exception.expect(IllegalArgumentException.class);
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
}
/**
* This testcase tests whether an IllegalArgumentException
* will be thrown when a value greater than 1 is retrieved by
* DFSUtil#getInvalidateWorkPctPerIteration
*/
@Test
public void testGetInvalidateWorkPctPerIteration_GreaterThanOne() {
Configuration conf = new Configuration();
float blocksInvalidateWorkPct = DFSUtil
.getInvalidateWorkPctPerIteration(conf);
assertTrue(blocksInvalidateWorkPct > 0);
conf.set(DFSConfigKeys.
DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION, "1.5f");
exception.expect(IllegalArgumentException.class); exception.expect(IllegalArgumentException.class);
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf); blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
} }