本文整理汇总了Java中org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo.createdRollbackImages方法的典型用法代码示例。如果您正苦于以下问题：Java RollingUpgradeInfo.createdRollbackImages方法的具体用法？Java RollingUpgradeInfo.createdRollbackImages怎么用？Java RollingUpgradeInfo.createdRollbackImages使用的例子？那么恭喜您, 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.protocol.RollingUpgradeInfo的用法示例。
在下文中一共展示了RollingUpgradeInfo.createdRollbackImages方法的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: printMessage
import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo; //导入方法依赖的package包/类
private static void printMessage(RollingUpgradeInfo info,
PrintStream out) {
if (info != null && info.isStarted()) {
if (!info.createdRollbackImages() && !info.isFinalized()) {
out.println(
"Preparing for upgrade. Data is being saved for rollback."
+ "\nRun \"dfsadmin -rollingUpgrade query\" to check the status"
+ "\nfor proceeding with rolling upgrade");
out.println(info);
} else if (!info.isFinalized()) {
out.println("Proceed with rolling upgrade:");
out.println(info);
} else {
out.println("Rolling upgrade is finalized.");
out.println(info);
}
} else {
out.println("There is no rolling upgrade in progress or rolling " +
"upgrade has already been finalized.");
}
}
示例2: queryForPreparation
import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo; //导入方法依赖的package包/类
static void queryForPreparation(DistributedFileSystem dfs) throws IOException,
InterruptedException {
RollingUpgradeInfo info;
int retries = 0;
while (++retries < 10) {
info = dfs.rollingUpgrade(RollingUpgradeAction.QUERY);
if (info.createdRollbackImages()) {
break;
}
Thread.sleep(1000);
}
if (retries >= 10) {
Assert.fail("Query return false");
}
}
示例3: printMessage
import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo; //导入方法依赖的package包/类
private static void printMessage(RollingUpgradeInfo info,
PrintStream out) {
if (info != null && info.isStarted()) {
if (!info.createdRollbackImages()) {
out.println(
"Preparing for upgrade. Data is being saved for rollback."
+ "\nRun \"dfsadmin -rollingUpgrade query\" to check the status"
+ "\nfor proceeding with rolling upgrade");
out.println(info);
} else if (!info.isFinalized()) {
out.println("Proceed with rolling upgrade:");
out.println(info);
} else {
out.println("Rolling upgrade is finalized.");
out.println(info);
}
} else {
out.println("There is no rolling upgrade in progress or rolling " +
"upgrade has already been finalized.");
}
}
示例4: printMessage
import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo; //导入方法依赖的package包/类
private static void printMessage(RollingUpgradeInfo info,
PrintStream out) {
if (info != null && info.isStarted()) {
if (!info.createdRollbackImages()) {
out.println(
"Preparing for upgrade. Data is being saved for rollback."
+ "\nRun \"dfsadmin -rollingUpgrade query\" to check the status"
+ "\nfor proceeding with rolling upgrade");
out.println(info);
} else if (!info.isFinalized()) {
out.println("Proceed with rolling upgrade:");
out.println(info);
} else {
out.println("Rolling upgrade is finalized.");
out.println(info);
}
} else {
out.println("There is no rolling upgrade in progress.");
}
}
示例5: getRollingUpgradeStatus
import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo; //导入方法依赖的package包/类
@Override // NameNodeMXBean
public RollingUpgradeInfo.Bean getRollingUpgradeStatus() {
if (!isRollingUpgrade()) {
return null;
}
RollingUpgradeInfo upgradeInfo = getRollingUpgradeInfo();
if (upgradeInfo.createdRollbackImages()) {
return new RollingUpgradeInfo.Bean(upgradeInfo);
}
readLock();
try {
// check again after acquiring the read lock.
upgradeInfo = getRollingUpgradeInfo();
if (upgradeInfo == null) {
return null;
}
if (!upgradeInfo.createdRollbackImages()) {
boolean hasRollbackImage = this.getFSImage().hasRollbackFSImage();
upgradeInfo.setCreatedRollbackImages(hasRollbackImage);
}
} catch (IOException ioe) {
LOG.warn("Encountered exception setting Rollback Image", ioe);
} finally {
readUnlock();
}
return new RollingUpgradeInfo.Bean(upgradeInfo);
}