本文整理汇总了Java中org.apache.hadoop.hdfs.DFSUtil.getInvalidateWorkPctPerIteration方法的典型用法代码示例。如果您正苦于以下问题：Java DFSUtil.getInvalidateWorkPctPerIteration方法的具体用法？Java DFSUtil.getInvalidateWorkPctPerIteration怎么用？Java DFSUtil.getInvalidateWorkPctPerIteration使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.DFSUtil的用法示例。
在下文中一共展示了DFSUtil.getInvalidateWorkPctPerIteration方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testGetInvalidateWorkPctPerIteration
import org.apache.hadoop.hdfs.DFSUtil; //导入方法依赖的package包/类
/**
* This testcase tests whether the default value returned by
* DFSUtil.getInvalidateWorkPctPerIteration() is positive,
* and whether an IllegalArgumentException will be thrown
* when 0.0f is retrieved
*/
@Test
public void testGetInvalidateWorkPctPerIteration() {
Configuration conf = new Configuration();
float blocksInvalidateWorkPct = DFSUtil
.getInvalidateWorkPctPerIteration(conf);
assertTrue(blocksInvalidateWorkPct > 0);
conf.set(DFSConfigKeys.DFS_NAMENODE_INVALIDATE_WORK_PCT_PER_ITERATION,
"0.5f");
blocksInvalidateWorkPct = DFSUtil.getInvalidateWorkPctPerIteration(conf);
assertEquals(blocksInvalidateWorkPct, 0.5f, blocksInvalidateWorkPct * 1e-7);
conf.set(DFSConfigKeys.
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);
}
示例2: testGetInvalidateWorkPctPerIteration_NegativeValue
import org.apache.hadoop.hdfs.DFSUtil; //导入方法依赖的package包/类
/**
* 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);
}
示例3: testGetInvalidateWorkPctPerIteration_GreaterThanOne
import org.apache.hadoop.hdfs.DFSUtil; //导入方法依赖的package包/类
/**
* 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);
}