本文整理汇总了Java中org.apache.cassandra.io.sstable.SSTableReader.getDroppableTombstonesBefore方法的典型用法代码示例。如果您正苦于以下问题：Java SSTableReader.getDroppableTombstonesBefore方法的具体用法？Java SSTableReader.getDroppableTombstonesBefore怎么用？Java SSTableReader.getDroppableTombstonesBefore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.cassandra.io.sstable.SSTableReader的用法示例。
在下文中一共展示了SSTableReader.getDroppableTombstonesBefore方法的4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: getDroppableTombstoneRatio
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
public double getDroppableTombstoneRatio()
{
double allDroppable = 0;
long allColumns = 0;
int localTime = (int)(System.currentTimeMillis()/1000);
for (SSTableReader sstable : getSSTables())
{
allDroppable += sstable.getDroppableTombstonesBefore(localTime - sstable.metadata.getGcGraceSeconds());
allColumns += sstable.getEstimatedColumnCount().mean() * sstable.getEstimatedColumnCount().count();
}
if (allColumns > 0)
{
return allDroppable / allColumns;
}
return 0;
}
示例2: getSSTableMetadata
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
public List<SSTableMetadata> getSSTableMetadata(String ksName, String cfName) {
ColumnFamilyStore cfStore = getStore(ksName, cfName);
Collection<SSTableReader> tables = cfStore.getSSTables();
List<SSTableMetadata> metaData = new ArrayList<>(tables.size());
for (SSTableReader table : tables) {
SSTableMetadata tableMetadata = new SSTableMetadata();
File dataFile = new File(table.descriptor.filenameFor(Component.DATA));
tableMetadata.filename = dataFile.getName();
tableMetadata.generation = table.descriptor.generation;
try {
tableMetadata.fileTimestamp = Files.getLastModifiedTime(dataFile.toPath()).toMillis();
} catch (IOException e) {
tableMetadata.fileTimestamp = 0;
}
tableMetadata.minTimestamp = table.getMinTimestamp();
tableMetadata.maxTimestamp = table.getMaxTimestamp();
tableMetadata.diskLength = table.onDiskLength();
tableMetadata.uncompressedLength = table.uncompressedLength();
tableMetadata.keys = table.estimatedKeys();
EstimatedHistogram rowSizeHistogram = table.getEstimatedRowSize();
tableMetadata.maxRowSize = rowSizeHistogram.max();
tableMetadata.avgRowSize = rowSizeHistogram.mean();
EstimatedHistogram columnCountHistogram = table.getEstimatedColumnCount();
tableMetadata.maxColumnCount = columnCountHistogram.max();
tableMetadata.avgColumnCount = columnCountHistogram.mean();
tableMetadata.droppableTombstones = table.getDroppableTombstonesBefore(Util.NOW_SECONDS - table.metadata.getGcGraceSeconds());
tableMetadata.level = table.getSSTableLevel();
tableMetadata.isRepaired = table.isRepaired();
tableMetadata.repairedAt = table.getSSTableMetadata().repairedAt;
metaData.add(tableMetadata);
}
return metaData;
}
示例3: getSSTableMetadata
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
public List<SSTableMetadata> getSSTableMetadata(String ksName, String cfName) {
ColumnFamilyStore cfStore = getStore(ksName, cfName);
Collection<SSTableReader> tables = cfStore.getSSTables();
List<SSTableMetadata> metaData = new ArrayList<>(tables.size());
for (SSTableReader table : tables) {
SSTableMetadata tableMetadata = new SSTableMetadata();
File dataFile = new File(table.descriptor.filenameFor(Component.DATA));
tableMetadata.filename = dataFile.getName();
tableMetadata.generation = table.descriptor.generation;
try {
tableMetadata.fileTimestamp = Files.getLastModifiedTime(dataFile.toPath()).toMillis();
} catch (IOException e) {
tableMetadata.fileTimestamp = 0;
}
tableMetadata.minTimestamp = table.getMinTimestamp();
tableMetadata.maxTimestamp = table.getMaxTimestamp();
tableMetadata.diskLength = table.onDiskLength();
tableMetadata.uncompressedLength = table.uncompressedLength();
tableMetadata.keys = table.estimatedKeys();
EstimatedHistogram rowSizeHistogram = table.getEstimatedRowSize();
tableMetadata.maxRowSize = rowSizeHistogram.max();
tableMetadata.avgRowSize = rowSizeHistogram.mean();
EstimatedHistogram columnCountHistogram = table.getEstimatedColumnCount();
tableMetadata.maxColumnCount = columnCountHistogram.max();
tableMetadata.avgColumnCount = columnCountHistogram.mean();
tableMetadata.droppableTombstones = table.getDroppableTombstonesBefore(Util.NOW_SECONDS - table.metadata.getGcGraceSeconds());
tableMetadata.level = table.getSSTableLevel();
tableMetadata.isRepaired = false;
metaData.add(tableMetadata);
}
return metaData;
}
示例4: getDroppableTombstoneRatio
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
public double getDroppableTombstoneRatio()
{
double allDroppable = 0;
long allColumns = 0;
int localTime = (int)(System.currentTimeMillis()/1000);
for (SSTableReader sstable : getSSTables())
{
allDroppable += sstable.getDroppableTombstonesBefore(localTime - sstable.metadata.getGcGraceSeconds());
allColumns += sstable.getEstimatedColumnCount().mean() * sstable.getEstimatedColumnCount().count();
}
return allColumns > 0 ? allDroppable / allColumns : 0;
}