本文整理汇总了Java中org.apache.cassandra.db.Keyspace.clearSnapshot方法的典型用法代码示例。如果您正苦于以下问题：Java Keyspace.clearSnapshot方法的具体用法？Java Keyspace.clearSnapshot怎么用？Java Keyspace.clearSnapshot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.db.Keyspace的用法示例。
在下文中一共展示了Keyspace.clearSnapshot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: clearSnapshot
import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
/**
* Remove the snapshot with the given name from the given keyspaces.
* If no tag is specified we will remove all snapshots.
*/
public void clearSnapshot(String tag, String... keyspaceNames) throws IOException
{
if(tag == null)
tag = "";
Set<String> keyspaces = new HashSet<>();
for (String dataDir : DatabaseDescriptor.getAllDataFileLocations())
{
for(String keyspaceDir : new File(dataDir).list())
{
// Only add a ks if it has been specified as a param, assuming params were actually provided.
if (keyspaceNames.length > 0 && !Arrays.asList(keyspaceNames).contains(keyspaceDir))
continue;
keyspaces.add(keyspaceDir);
}
}
for (String keyspace : keyspaces)
Keyspace.clearSnapshot(tag, keyspace);
if (logger.isDebugEnabled())
logger.debug("Cleared out snapshot directories");
}
示例2: doVerb
import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
public void doVerb(MessageIn<SnapshotCommand> message, int id)
{
SnapshotCommand command = message.payload;
if (command.clear_snapshot)
{
Keyspace.clearSnapshot(command.snapshot_name, command.keyspace);
}
else
Keyspace.open(command.keyspace).getColumnFamilyStore(command.column_family).snapshot(command.snapshot_name);
logger.debug("Enqueuing response to snapshot request {} to {}", command.snapshot_name, message.from);
MessagingService.instance().sendReply(new MessageOut(MessagingService.Verb.INTERNAL_RESPONSE), id, message.from);
}