本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.NameNode.OperationCategory.READ属性的典型用法代码示例。如果您正苦于以下问题：Java OperationCategory.READ属性的具体用法？Java OperationCategory.READ怎么用？Java OperationCategory.READ使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.hdfs.server.namenode.NameNode.OperationCategory的用法示例。
在下文中一共展示了OperationCategory.READ属性的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: checkOperation
@Override
public void checkOperation(HAContext context, OperationCategory op)
throws StandbyException {
if (op == OperationCategory.UNCHECKED ||
(op == OperationCategory.READ && context.allowStaleReads())) {
return;
}
String msg = "Operation category " + op + " is not supported in state "
+ context.getState();
throw new StandbyException(msg);
}
示例2: setSafeMode
@Override // ClientProtocol
public boolean setSafeMode(SafeModeAction action, boolean isChecked)
throws IOException {
checkNNStartup();
OperationCategory opCategory = OperationCategory.UNCHECKED;
if (isChecked) {
if (action == SafeModeAction.SAFEMODE_GET) {
opCategory = OperationCategory.READ;
} else {
opCategory = OperationCategory.WRITE;
}
}
namesystem.checkOperation(opCategory);
return namesystem.setSafeMode(action);
}
示例3: checkOperation
@Override
public void checkOperation(HAContext context, OperationCategory op)
throws StandbyException {
if (op == OperationCategory.UNCHECKED ||
(op == OperationCategory.READ && context.allowStaleReads())) {
return;
}
String faq = ". Visit https://s.apache.org/sbnn-error";
String msg = "Operation category " + op + " is not supported in state "
+ context.getState() + faq;
throw new StandbyException(msg);
}