本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo类的典型用法代码示例。如果您正苦于以下问题：Java SafeModeInfo类的具体用法？Java SafeModeInfo怎么用？Java SafeModeInfo使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
SafeModeInfo类属于org.apache.hadoop.hdfs.server.namenode.FSNamesystem包，在下文中一共展示了SafeModeInfo类的5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: getSafeModeSafeBlocks
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo; //导入依赖的package包/类
/**
* @return the number of blocks marked safe by safemode, or -1
* if safemode is not running.
*/
public static int getSafeModeSafeBlocks(NameNode nn) {
SafeModeInfo smi = nn.getNamesystem().getSafeModeInfoForTests();
if (smi == null) {
return -1;
}
return smi.blockSafe;
}
示例2: safeModeInitializedReplQueues
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo; //导入依赖的package包/类
/**
* @return true if safemode is not running, or if safemode has already
* initialized the replication queues
*/
public static boolean safeModeInitializedReplQueues(NameNode nn) {
SafeModeInfo smi = nn.getNamesystem().getSafeModeInfoForTests();
if (smi == null) {
return true;
}
return smi.initializedReplQueues;
}
示例3: getSafeModeSafeBlocks
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo; //导入依赖的package包/类
/**
* @return the number of blocks marked safe by safemode, or -1
* if safemode is not running.
*/
public static int getSafeModeSafeBlocks(NameNode nn) throws IOException {
SafeModeInfo smi = nn.getNamesystem().getSafeModeInfoForTests();
if (smi == null) {
return -1;
}
return smi.blockSafe();
}
示例4: safeModeInitializedReplQueues
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo; //导入依赖的package包/类
/**
* @return true if safemode is not running, or if safemode has already
* initialized the replication queues
*/
public static boolean safeModeInitializedReplQueues(NameNode nn) {
SafeModeInfo smi = nn.getNamesystem().getSafeModeInfoForTests();
if (smi == null) {
return true;
}
return smi.initializedReplicationQueues;
}
示例5: testClientRetrySafeMode
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.SafeModeInfo; //导入依赖的package包/类
/**
* Make sure the client retries when the active NN is in safemode
*/
@Test (timeout=300000)
public void testClientRetrySafeMode() throws Exception {
final Map<Path, Boolean> results = Collections
.synchronizedMap(new HashMap<Path, Boolean>());
final Path test = new Path("/test");
// let nn0 enter safemode
NameNodeAdapter.enterSafeMode(nn0, false);
SafeModeInfo safeMode = (SafeModeInfo) Whitebox.getInternalState(
nn0.getNamesystem(), "safeMode");
Whitebox.setInternalState(safeMode, "extension", Integer.valueOf(30000));
LOG.info("enter safemode");
new Thread() {
@Override
public void run() {
try {
boolean mkdir = fs.mkdirs(test);
LOG.info("mkdir finished, result is " + mkdir);
synchronized (TestHASafeMode.this) {
results.put(test, mkdir);
TestHASafeMode.this.notifyAll();
}
} catch (Exception e) {
LOG.info("Got Exception while calling mkdir", e);
}
}
}.start();
// make sure the client's call has actually been handled by the active NN
assertFalse("The directory should not be created while NN in safemode",
fs.exists(test));
Thread.sleep(1000);
// let nn0 leave safemode
NameNodeAdapter.leaveSafeMode(nn0);
LOG.info("leave safemode");
synchronized (this) {
while (!results.containsKey(test)) {
this.wait();
}
assertTrue(results.get(test));
}
}