本文整理汇总了Java中org.apache.cassandra.io.sstable.SSTableReader.acquireReferences方法的典型用法代码示例。如果您正苦于以下问题：Java SSTableReader.acquireReferences方法的具体用法？Java SSTableReader.acquireReferences怎么用？Java SSTableReader.acquireReferences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.acquireReferences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: complete
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
private void complete()
{
if (!SSTableReader.acquireReferences(sstables))
throw new AssertionError("We shouldn't fail acquiring a reference on a sstable that has just been transferred");
try
{
Pair<String, String> kscf = Schema.instance.getCF(cfId);
ColumnFamilyStore cfs = Keyspace.open(kscf.left).getColumnFamilyStore(kscf.right);
// add sstables and build secondary indexes
cfs.addSSTables(sstables);
cfs.indexManager.maybeBuildSecondaryIndexes(sstables, cfs.indexManager.allIndexesNames());
}
finally
{
SSTableReader.releaseReferences(sstables);
}
session.taskCompleted(this);
}
示例2: testTransferOfMultipleColumnFamilies
import org.apache.cassandra.io.sstable.SSTableReader; //导入方法依赖的package包/类
@Test
public void testTransferOfMultipleColumnFamilies() throws Exception
{
String keyspace = "KeyCacheSpace";
IPartitioner p = StorageService.getPartitioner();
String[] columnFamilies = new String[] { "Standard1", "Standard2", "Standard3" };
List<SSTableReader> ssTableReaders = new ArrayList<>();
NavigableMap<DecoratedKey,String> keys = new TreeMap<>();
for (String cf : columnFamilies)
{
Set<String> content = new HashSet<>();
content.add("data-" + cf + "-1");
content.add("data-" + cf + "-2");
content.add("data-" + cf + "-3");
SSTableUtils.Context context = SSTableUtils.prepare().ks(keyspace).cf(cf);
ssTableReaders.add(context.write(content));
// collect dks for each string key
for (String str : content)
keys.put(Util.dk(str), cf);
}
// transfer the first and last keys
Map.Entry<DecoratedKey,String> first = keys.firstEntry();
Map.Entry<DecoratedKey,String> last = keys.lastEntry();
Map.Entry<DecoratedKey,String> secondtolast = keys.lowerEntry(last.getKey());
List<Range<Token>> ranges = new ArrayList<>();
ranges.add(new Range<>(p.getMinimumToken(), first.getKey().token));
// the left hand side of the range is exclusive, so we transfer from the second-to-last token
ranges.add(new Range<>(secondtolast.getKey().token, p.getMinimumToken()));
// Acquiring references, transferSSTables needs it
if (!SSTableReader.acquireReferences(ssTableReaders))
throw new AssertionError();
new StreamPlan("StreamingTransferTest").transferFiles(LOCAL, makeStreamingDetails(ranges, ssTableReaders)).execute().get();
// check that only two keys were transferred
for (Map.Entry<DecoratedKey,String> entry : Arrays.asList(first, last))
{
ColumnFamilyStore store = Keyspace.open(keyspace).getColumnFamilyStore(entry.getValue());
List<Row> rows = Util.getRangeSlice(store);
assertEquals(rows.toString(), 1, rows.size());
assertEquals(entry.getKey(), rows.get(0).key);
}
}