本文整理汇总了Java中org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.NewEpochResponseProto.newBuilder方法的典型用法代码示例。如果您正苦于以下问题：Java NewEpochResponseProto.newBuilder方法的具体用法？Java NewEpochResponseProto.newBuilder怎么用？Java NewEpochResponseProto.newBuilder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.qjournal.protocol.QJournalProtocolProtos.NewEpochResponseProto的用法示例。
在下文中一共展示了NewEpochResponseProto.newBuilder方法的1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: newEpoch
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.NewEpochResponseProto; //导入方法依赖的package包/类
/**
* Try to create a new epoch for this journal.
* @param nsInfo the namespace, which is verified for consistency or used to
* format, if the Journal has not yet been written to.
* @param epoch the epoch to start
* @return the status information necessary to begin recovery
* @throws IOException if the node has already made a promise to another
* writer with a higher epoch number, if the namespace is inconsistent,
* or if a disk error occurs.
*/
synchronized NewEpochResponseProto newEpoch(
NamespaceInfo nsInfo, long epoch) throws IOException {
checkFormatted();
storage.checkConsistentNamespace(nsInfo);
// Check that the new epoch being proposed is in fact newer than
// any other that we've promised.
if (epoch <= getLastPromisedEpoch()) {
throw new IOException("Proposed epoch " + epoch + " <= last promise " +
getLastPromisedEpoch());
}
updateLastPromisedEpoch(epoch);
abortCurSegment();
NewEpochResponseProto.Builder builder =
NewEpochResponseProto.newBuilder();
EditLogFile latestFile = scanStorageForLatestEdits();
if (latestFile != null) {
builder.setLastSegmentTxId(latestFile.getFirstTxId());
}
return builder.build();
}