Java Keyspace.getColumnFamilyStores方法代码示例

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
public long trueSnapshotsSize()
{
    long total = 0;
    for (Keyspace keyspace : Keyspace.all())
    {
        if (Keyspace.SYSTEM_KS.equals(keyspace.getName()))
            continue;

        for (ColumnFamilyStore cfStore : keyspace.getColumnFamilyStores())
        {
            total += cfStore.trueSnapshotsSize();
        }
    }

    return total;
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
/**
 * Returns a Pair of all compacting and non-compacting sstables.  Non-compacting sstables will be marked as
 * compacting.
 */
private Pair<List<SSTableReader>, Multimap<DataTracker, SSTableReader>> getCompactingAndNonCompactingSSTables()
{
    List<SSTableReader> allCompacting = new ArrayList<>();
    Multimap<DataTracker, SSTableReader> allNonCompacting = HashMultimap.create();
    for (Keyspace ks : Keyspace.all())
    {
        for (ColumnFamilyStore cfStore: ks.getColumnFamilyStores())
        {
            Set<SSTableReader> nonCompacting, allSSTables;
            do
            {
                allSSTables = cfStore.getDataTracker().getSSTables();
                nonCompacting = Sets.newHashSet(cfStore.getDataTracker().getUncompactingSSTables(allSSTables));
            }
            while (!(nonCompacting.isEmpty() || cfStore.getDataTracker().markCompacting(nonCompacting)));
            allNonCompacting.putAll(cfStore.getDataTracker(), nonCompacting);
            allCompacting.addAll(Sets.difference(allSSTables, nonCompacting));
        }
    }
    return Pair.create(allCompacting, allNonCompacting);
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
/**
 * Returns a Pair of all compacting and non-compacting sstables.  Non-compacting sstables will be marked as
 * compacting.
 */
@SuppressWarnings("resource")
private Pair<List<SSTableReader>, Map<UUID, LifecycleTransaction>> getCompactingAndNonCompactingSSTables()
{
    List<SSTableReader> allCompacting = new ArrayList<>();
    Map<UUID, LifecycleTransaction> allNonCompacting = new HashMap<>();
    for (Keyspace ks : Keyspace.all())
    {
        for (ColumnFamilyStore cfStore: ks.getColumnFamilyStores())
        {
            Set<SSTableReader> nonCompacting, allSSTables;
            LifecycleTransaction txn = null;
            do
            {
                View view = cfStore.getTracker().getView();
                allSSTables = ImmutableSet.copyOf(view.select(SSTableSet.CANONICAL));
                nonCompacting = ImmutableSet.copyOf(view.getUncompacting(allSSTables));
            }
            while (null == (txn = cfStore.getTracker().tryModify(nonCompacting, OperationType.UNKNOWN)));

            allNonCompacting.put(cfStore.metadata.cfId, txn);
            allCompacting.addAll(Sets.difference(allSSTables, nonCompacting));
        }
    }
    return Pair.create(allCompacting, allNonCompacting);
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
/** raw load value */
public double getLoad()
{
    double bytes = 0;
    for (String keyspaceName : Schema.instance.getKeyspaces())
    {
        Keyspace keyspace = Schema.instance.getKeyspaceInstance(keyspaceName);
        if (keyspace == null)
            continue;
        for (ColumnFamilyStore cfs : keyspace.getColumnFamilyStores())
            bytes += cfs.getLiveDiskSpaceUsed();
    }
    return bytes;
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
private List<SSTableReader> getAllSSTables()
{
    List<SSTableReader> result = new ArrayList<>();
    for (Keyspace ks : Keyspace.all())
    {
        for (ColumnFamilyStore cfStore: ks.getColumnFamilyStores())
            result.addAll(cfStore.getSSTables());
    }

    return result;
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
private void removeExpected(Set<Tidy> candidates)
{
    final Ref.IdentityCollection expected = new Ref.IdentityCollection(candidates);
    for (Keyspace ks : Keyspace.all())
    {
        for (ColumnFamilyStore cfs : ks.getColumnFamilyStores())
        {
            View view = cfs.getTracker().getView();
            for (SSTableReader reader : view.allKnownSSTables())
                reader.addTo(expected);
        }
    }
}
 

import org.apache.cassandra.db.Keyspace; //导入方法依赖的package包/类
private List<SSTableReader> getAllSSTables()
{
    List<SSTableReader> result = new ArrayList<>();
    for (Keyspace ks : Keyspace.all())
    {
        for (ColumnFamilyStore cfStore: ks.getColumnFamilyStores())
            result.addAll(cfStore.getLiveSSTables());
    }

    return result;
}