Пример #1
0
  @Override
  public void applyModels() throws IOException {
    KSMetaData ksm = DatabaseDescriptor.getTableDefinition(name);
    // remove the table from the static instances.
    Table table = Table.clear(ksm.name);
    if (table == null) throw new IOException("Table is not active. " + ksm.name);

    // remove all cfs from the table instance.
    for (CFMetaData cfm : ksm.cfMetaData().values()) {
      CFMetaData.purge(cfm);
      table.dropCf(cfm.cfId);
      SystemTable.markForRemoval(cfm);
    }

    // reset defs.
    DatabaseDescriptor.clearTableDefinition(ksm, newVersion);
    CommitLog.instance().forceNewSegment();
    Migration.cleanupDeadFiles(blockOnFileDeletion);

    // clear up any local hinted data for this keyspace.
    HintedHandOffManager.renameHints(name, null);
  }
Пример #2
0
  public void applyModels() throws IOException {
    ColumnFamilyStore cfs = Table.open(tableName).getColumnFamilyStore(cfName);

    // reinitialize the table.
    KSMetaData existing = DatabaseDescriptor.getTableDefinition(tableName);
    CFMetaData cfm = existing.cfMetaData().get(cfName);
    KSMetaData ksm = makeNewKeyspaceDefinition(existing);
    CFMetaData.purge(cfm);
    DatabaseDescriptor.setTableDefinition(ksm, newVersion);

    if (!clientMode) {
      cfs.snapshot(Table.getTimestampedSnapshotName(null));

      CompactionManager.instance.getCompactionLock().lock();
      cfs.flushLock.lock();
      try {
        Table.open(ksm.name).dropCf(cfm.cfId);
      } finally {
        cfs.flushLock.unlock();
        CompactionManager.instance.getCompactionLock().unlock();
      }
    }
  }