本文整理汇总了Java中org.apache.cassandra.db.Directories.DataDirectory类的典型用法代码示例。如果您正苦于以下问题：Java DataDirectory类的具体用法？Java DataDirectory怎么用？Java DataDirectory使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
DataDirectory类属于org.apache.cassandra.db.Directories包，在下文中一共展示了DataDirectory类的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: getWriteableDirectories
import org.apache.cassandra.db.Directories.DataDirectory; //导入依赖的package包/类
private List<Directories.DataDirectoryCandidate> getWriteableDirectories(DataDirectory[] dataDirectories, long writeSize)
{
// copied from Directories.getWriteableLocation(long)
List<Directories.DataDirectoryCandidate> candidates = new ArrayList<>();
long totalAvailable = 0L;
for (DataDirectory dataDir : dataDirectories)
{
Directories.DataDirectoryCandidate candidate = new Directories.DataDirectoryCandidate(dataDir);
// exclude directory if its total writeSize does not fit to data directory
if (candidate.availableSpace < writeSize)
continue;
candidates.add(candidate);
totalAvailable += candidate.availableSpace;
}
Directories.sortWriteableCandidates(candidates, totalAvailable);
return candidates;
}
示例2: markDirectoriesUnwriteable
import org.apache.cassandra.db.Directories.DataDirectory; //导入依赖的package包/类
public static Closeable markDirectoriesUnwriteable(ColumnFamilyStore cfs)
{
try
{
for ( ; ; )
{
DataDirectory dir = cfs.getDirectories().getWriteableLocation(1);
BlacklistedDirectories.maybeMarkUnwritable(cfs.getDirectories().getLocationForDisk(dir));
}
}
catch (IOError e)
{
// Expected -- marked all directories as unwritable
}
return () -> BlacklistedDirectories.clearUnwritableUnsafe();
}
示例3: testDiskFailurePolicy_best_effort
import org.apache.cassandra.db.Directories.DataDirectory; //导入依赖的package包/类
@Test
public void testDiskFailurePolicy_best_effort()
{
DiskFailurePolicy origPolicy = DatabaseDescriptor.getDiskFailurePolicy();
try
{
DatabaseDescriptor.setDiskFailurePolicy(DiskFailurePolicy.best_effort);
// Fake a Directory creation failure
if (Directories.dataDirectories.length > 0)
{
String[] path = new String[] {KS, "bad"};
File dir = new File(Directories.dataDirectories[0].location, StringUtils.join(path, File.separator));
FileUtils.handleFSError(new FSWriteError(new IOException("Unable to create directory " + dir), dir));
}
for (DataDirectory dd : Directories.dataDirectories)
{
File file = new File(dd.location, new File(KS, "bad").getPath());
assertTrue(BlacklistedDirectories.isUnwritable(file));
}
}
finally
{
DatabaseDescriptor.setDiskFailurePolicy(origPolicy);
}
}
示例4: testDiskFailurePolicy_best_effort
import org.apache.cassandra.db.Directories.DataDirectory; //导入依赖的package包/类
@Test
public void testDiskFailurePolicy_best_effort()
{
DiskFailurePolicy origPolicy = DatabaseDescriptor.getDiskFailurePolicy();
try
{
DatabaseDescriptor.setDiskFailurePolicy(DiskFailurePolicy.best_effort);
// Fake a Directory creation failure
if (Directories.dataDirectories.length > 0)
{
String[] path = new String[] {KS, "bad"};
File dir = new File(Directories.dataDirectories[0].location, StringUtils.join(path, File.separator));
FileUtils.handleFSError(new FSWriteError(new IOException("Unable to create directory " + dir), dir));
}
for (DataDirectory dd : Directories.dataDirectories)
{
File file = new File(dd.location, new File(KS, "bad").getPath());
assertTrue(BlacklistedDirectories.isUnwritable(file));
}
}
finally
{
DatabaseDescriptor.setDiskFailurePolicy(origPolicy);
}
}