| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cassandra.db.compaction; |
| |
| import java.util.Iterator; |
| import java.util.Set; |
| import java.util.UUID; |
| |
| import com.google.common.base.Preconditions; |
| |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.db.Directories; |
| import org.apache.cassandra.db.compaction.writers.CompactionAwareWriter; |
| import org.apache.cassandra.io.FSDiskFullWriteError; |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| import org.apache.cassandra.utils.WrappedRunnable; |
| import org.apache.cassandra.db.lifecycle.LifecycleTransaction; |
| |
| public abstract class AbstractCompactionTask extends WrappedRunnable |
| { |
| protected final ColumnFamilyStore cfs; |
| protected LifecycleTransaction transaction; |
| protected boolean isUserDefined; |
| protected OperationType compactionType; |
| |
| /** |
| * @param cfs |
| * @param transaction the modifying managing the status of the sstables we're replacing |
| */ |
| public AbstractCompactionTask(ColumnFamilyStore cfs, LifecycleTransaction transaction) |
| { |
| this.cfs = cfs; |
| this.transaction = transaction; |
| this.isUserDefined = false; |
| this.compactionType = OperationType.COMPACTION; |
| // enforce contract that caller should mark sstables compacting |
| Set<SSTableReader> compacting = transaction.tracker.getCompacting(); |
| for (SSTableReader sstable : transaction.originals()) |
| assert compacting.contains(sstable) : sstable.getFilename() + " is not correctly marked compacting"; |
| |
| validateSSTables(transaction.originals()); |
| } |
| |
| /** |
| * Confirm that we're not attempting to compact repaired/unrepaired/pending repair sstables together |
| */ |
| private void validateSSTables(Set<SSTableReader> sstables) |
| { |
| // do not allow to be compacted together |
| if (!sstables.isEmpty()) |
| { |
| Iterator<SSTableReader> iter = sstables.iterator(); |
| SSTableReader first = iter.next(); |
| boolean isRepaired = first.isRepaired(); |
| UUID pendingRepair = first.getPendingRepair(); |
| while (iter.hasNext()) |
| { |
| SSTableReader next = iter.next(); |
| Preconditions.checkArgument(isRepaired == next.isRepaired(), |
| "Cannot compact repaired and unrepaired sstables"); |
| |
| if (pendingRepair == null) |
| { |
| Preconditions.checkArgument(!next.isPendingRepair(), |
| "Cannot compact pending repair and non-pending repair sstables"); |
| } |
| else |
| { |
| Preconditions.checkArgument(next.isPendingRepair(), |
| "Cannot compact pending repair and non-pending repair sstables"); |
| Preconditions.checkArgument(pendingRepair.equals(next.getPendingRepair()), |
| "Cannot compact sstables from different pending repairs"); |
| } |
| } |
| } |
| } |
| |
| /** |
| * executes the task and unmarks sstables compacting |
| */ |
| public int execute(ActiveCompactionsTracker activeCompactions) |
| { |
| try |
| { |
| return executeInternal(activeCompactions); |
| } |
| catch(FSDiskFullWriteError e) |
| { |
| RuntimeException cause = new RuntimeException("Converted from FSDiskFullWriteError: " + e.getMessage()); |
| cause.setStackTrace(e.getStackTrace()); |
| throw new RuntimeException("Throwing new Runtime to bypass exception handler when disk is full", cause); |
| } |
| finally |
| { |
| transaction.close(); |
| } |
| } |
| public abstract CompactionAwareWriter getCompactionAwareWriter(ColumnFamilyStore cfs, Directories directories, LifecycleTransaction txn, Set<SSTableReader> nonExpiredSSTables); |
| |
| protected abstract int executeInternal(ActiveCompactionsTracker activeCompactions); |
| |
| public AbstractCompactionTask setUserDefined(boolean isUserDefined) |
| { |
| this.isUserDefined = isUserDefined; |
| return this; |
| } |
| |
| public AbstractCompactionTask setCompactionType(OperationType compactionType) |
| { |
| this.compactionType = compactionType; |
| return this; |
| } |
| |
| public String toString() |
| { |
| return "CompactionTask(" + transaction + ")"; |
| } |
| } |