本文整理汇总了Java中org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.NewEpochResponseProto.hasLastSegmentTxId方法的典型用法代码示例。如果您正苦于以下问题:Java NewEpochResponseProto.hasLastSegmentTxId方法的具体用法?Java NewEpochResponseProto.hasLastSegmentTxId怎么用?Java NewEpochResponseProto.hasLastSegmentTxId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.hasLastSegmentTxId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: recoverUnfinalizedSegments
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.NewEpochResponseProto; //导入方法依赖的package包/类
@Override
public void recoverUnfinalizedSegments() throws IOException {
Preconditions.checkState(!isActiveWriter, "already active writer");
LOG.info("Starting recovery process for unclosed journal segments...");
Map<AsyncLogger, NewEpochResponseProto> resps = createNewUniqueEpoch();
LOG.info("Successfully started new epoch " + loggers.getEpoch());
if (LOG.isDebugEnabled()) {
LOG.debug("newEpoch(" + loggers.getEpoch() + ") responses:\n" +
QuorumCall.mapToString(resps));
}
long mostRecentSegmentTxId = Long.MIN_VALUE;
for (NewEpochResponseProto r : resps.values()) {
if (r.hasLastSegmentTxId()) {
mostRecentSegmentTxId = Math.max(mostRecentSegmentTxId,
r.getLastSegmentTxId());
}
}
// On a completely fresh system, none of the journals have any
// segments, so there's nothing to recover.
if (mostRecentSegmentTxId != Long.MIN_VALUE) {
recoverUnclosedSegment(mostRecentSegmentTxId);
}
isActiveWriter = true;
}