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HDFS-3819. Should check whether invalidate work percentage default value is not greater than 1.0f. Contributed by Jing Zhao.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1376185 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jitendra Nath Pandey 2012-08-22 18:44:44 +00:00
parent 30bd8ef9d1
commit 901b1739c6
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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@ -123,6 +123,9 @@ Trunk (unreleased changes)
HDFS-3817. Avoid printing SafeModeException stack trace.
(Brandon Li via suresh)
HDFS-3819. Should check whether invalidate work percentage default value is
not greater than 1.0f. (Jing Zhao via jitendra)
OPTIMIZATIONS
BUG FIXES

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
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@ -1156,11 +1156,11 @@ public static float getInvalidateWorkPctPerIteration(Configuration conf) {
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION,
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION_DEFAULT);
Preconditions.checkArgument(
(blocksInvalidateWorkPct > 0),
(blocksInvalidateWorkPct > 0 && blocksInvalidateWorkPct <= 1.0f),
DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION +
" = '" + blocksInvalidateWorkPct + "' is invalid. " +
"It should be a positive, non-zero float value " +
"indicating a percentage.");
"It should be a positive, non-zero float value, not greater than 1.0f, " +
"to indicate a percentage.");
return blocksInvalidateWorkPct;
}

45
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
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@ -645,7 +645,7 @@ public void testChooseReplicaToDelete() throws Exception {
* This testcase tests whether the default value returned by
* DFSUtil.getInvalidateWorkPctPerIteration() is positive,
* and whether an IllegalArgumentException will be thrown
* when a non-positive value is retrieved
* when 0.0f is retrieved
*/
@Test
public void testGetInvalidateWorkPctPerIteration() {
@ -660,7 +660,48 @@ public void testGetInvalidateWorkPctPerIteration() {
assertEquals(blocksInvalidateWorkPct, 0.5f, blocksInvalidateWorkPct * 1e-7);
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);
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
}