本文整理汇总了Java中org.apache.hadoop.yarn.server.applicationhistoryservice.NullApplicationHistoryStore类的典型用法代码示例。如果您正苦于以下问题：Java NullApplicationHistoryStore类的具体用法？Java NullApplicationHistoryStore怎么用？Java NullApplicationHistoryStore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。
NullApplicationHistoryStore类属于org.apache.hadoop.yarn.server.applicationhistoryservice包，在下文中一共展示了NullApplicationHistoryStore类的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: serviceInit
import org.apache.hadoop.yarn.server.applicationhistoryservice.NullApplicationHistoryStore; //导入依赖的package包/类
@Override
protected synchronized void serviceInit(Configuration conf) throws Exception {
historyServiceEnabled =
conf.getBoolean(YarnConfiguration.APPLICATION_HISTORY_ENABLED,
YarnConfiguration.DEFAULT_APPLICATION_HISTORY_ENABLED);
if (conf.get(YarnConfiguration.APPLICATION_HISTORY_STORE) == null ||
conf.get(YarnConfiguration.APPLICATION_HISTORY_STORE).length() == 0 ||
conf.get(YarnConfiguration.APPLICATION_HISTORY_STORE).equals(
NullApplicationHistoryStore.class.getName())) {
historyServiceEnabled = false;
}
// Only create the services when the history service is enabled and not
// using the null store, preventing wasting the system resources.
if (historyServiceEnabled) {
writer = createApplicationHistoryStore(conf);
addIfService(writer);
dispatcher = createDispatcher(conf);
dispatcher.register(WritingHistoryEventType.class,
new ForwardingEventHandler());
addIfService(dispatcher);
}
super.serviceInit(conf);
}
示例2: createApplicationHistoryStore
import org.apache.hadoop.yarn.server.applicationhistoryservice.NullApplicationHistoryStore; //导入依赖的package包/类
protected ApplicationHistoryStore createApplicationHistoryStore(
Configuration conf) {
try {
Class<? extends ApplicationHistoryStore> storeClass =
conf.getClass(YarnConfiguration.APPLICATION_HISTORY_STORE,
NullApplicationHistoryStore.class,
ApplicationHistoryStore.class);
return storeClass.newInstance();
} catch (Exception e) {
String msg =
"Could not instantiate ApplicationHistoryWriter: "
+ conf.get(YarnConfiguration.APPLICATION_HISTORY_STORE,
NullApplicationHistoryStore.class.getName());
LOG.error(msg, e);
throw new YarnRuntimeException(msg, e);
}
}
示例3: createApplicationHistoryStore
import org.apache.hadoop.yarn.server.applicationhistoryservice.NullApplicationHistoryStore; //导入依赖的package包/类
protected ApplicationHistoryStore createApplicationHistoryStore(
Configuration conf) {
// If the history writer is not enabled, a dummy store will be used to
// write nothing
if (historyServiceEnabled) {
try {
Class<? extends ApplicationHistoryStore> storeClass =
conf.getClass(YarnConfiguration.APPLICATION_HISTORY_STORE,
FileSystemApplicationHistoryStore.class,
ApplicationHistoryStore.class);
return storeClass.newInstance();
} catch (Exception e) {
String msg =
"Could not instantiate ApplicationHistoryWriter: "
+ conf.get(YarnConfiguration.APPLICATION_HISTORY_STORE,
FileSystemApplicationHistoryStore.class.getName());
LOG.error(msg, e);
throw new YarnRuntimeException(msg, e);
}
} else {
return new NullApplicationHistoryStore();
}
}