本文整理汇总了Java中org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.SegmentStateProto.getIsInProgress方法的典型用法代码示例。如果您正苦于以下问题:Java SegmentStateProto.getIsInProgress方法的具体用法?Java SegmentStateProto.getIsInProgress怎么用?Java SegmentStateProto.getIsInProgress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.SegmentStateProto
的用法示例。
在下文中一共展示了SegmentStateProto.getIsInProgress方法的2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: prepareRecovery
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.SegmentStateProto; //导入方法依赖的package包/类
/**
* @see QJournalProtocol#prepareRecovery(RequestInfo, long)
*/
public synchronized PrepareRecoveryResponseProto prepareRecovery(
RequestInfo reqInfo, long segmentTxId) throws IOException {
checkJournalStorageFormatted();
checkRequest(reqInfo);
abortCurSegment();
PrepareRecoveryResponseProto ret = new PrepareRecoveryResponseProto();
PersistedRecoveryPaxosData previouslyAccepted = getPersistedPaxosData(segmentTxId);
completeHalfDoneAcceptRecovery(previouslyAccepted);
SegmentStateProto segInfo = getSegmentInfo(segmentTxId);
boolean hasFinalizedSegment = segInfo != null && !segInfo.getIsInProgress();
if (previouslyAccepted != null && !hasFinalizedSegment) {
ret.setAcceptedInEpoch(previouslyAccepted.getAcceptedInEpoch());
ret.setSegmentState(previouslyAccepted.getSegmentState());
} else {
if (segInfo != null) {
ret.setSegmentState(segInfo);
}
}
ret.setLastWriterEpoch(lastWriterEpoch.get());
if (committedTxnId.get() != HdfsConstants.INVALID_TXID) {
ret.setLastCommittedTxId(committedTxnId.get());
}
LOG.info("Prepared recovery for segment " + segmentTxId + ": " + ret);
return ret;
}
示例2: compare
import org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos.SegmentStateProto; //导入方法依赖的package包/类
@Override
public int compare(
Entry<AsyncLogger, PrepareRecoveryResponseProto> a,
Entry<AsyncLogger, PrepareRecoveryResponseProto> b) {
PrepareRecoveryResponseProto r1 = a.getValue();
PrepareRecoveryResponseProto r2 = b.getValue();
// A response that has data for a segment is always better than one
// that doesn't.
if (r1.hasSegmentState() != r2.hasSegmentState()) {
return Booleans.compare(r1.hasSegmentState(), r2.hasSegmentState());
}
if (!r1.hasSegmentState()) {
// Neither has a segment, so neither can be used for recover.
// Call them equal.
return 0;
}
// They both have a segment.
SegmentStateProto r1Seg = r1.getSegmentState();
SegmentStateProto r2Seg = r2.getSegmentState();
Preconditions.checkArgument(r1Seg.getStartTxId() == r2Seg.getStartTxId(),
"Should only be called with responses for corresponding segments: " +
"%s and %s do not have the same start txid.", r1, r2);
// If one is in-progress but the other is finalized,
// the finalized one is greater.
if (r1Seg.getIsInProgress() != r2Seg.getIsInProgress()) {
return Booleans.compare(!r1Seg.getIsInProgress(), !r2Seg.getIsInProgress());
}
if (!r1Seg.getIsInProgress()) {
// If both are finalized, they should match lengths
if (r1Seg.getEndTxId() != r2Seg.getEndTxId()) {
throw new AssertionError("finalized segs with different lengths: " +
r1 + ", " + r2);
}
return 0;
}
// Both are in-progress.
long r1SeenEpoch = Math.max(r1.getAcceptedInEpoch(), r1.getLastWriterEpoch());
long r2SeenEpoch = Math.max(r2.getAcceptedInEpoch(), r2.getLastWriterEpoch());
return ComparisonChain.start()
.compare(r1SeenEpoch, r2SeenEpoch)
.compare(r1.getSegmentState().getEndTxId(), r2.getSegmentState().getEndTxId())
.result();
}