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Posted to commits@hbase.apache.org by an...@apache.org on 2015/05/28 10:13:46 UTC
[5/6] hbase git commit: HBASE-13763 Handle the rename,
annotation and typo stuff in MOB. (Jingcheng)
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobConstants.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobConstants.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobConstants.java
index 464a0e7..dd33cda 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobConstants.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobConstants.java
@@ -77,43 +77,43 @@ public class MobConstants {
public final static String EMPTY_STRING = "";
/**
* If the size of a mob file is less than this value, it's regarded as a small file and needs to
- * be merged in mob file compaction. The default value is 192MB.
+ * be merged in mob compaction. The default value is 192MB.
*/
- public static final String MOB_FILE_COMPACTION_MERGEABLE_THRESHOLD =
- "hbase.mob.file.compaction.mergeable.threshold";
- public static final long DEFAULT_MOB_FILE_COMPACTION_MERGEABLE_THRESHOLD = 192 * 1024 * 1024;
+ public static final String MOB_COMPACTION_MERGEABLE_THRESHOLD =
+ "hbase.mob.compaction.mergeable.threshold";
+ public static final long DEFAULT_MOB_COMPACTION_MERGEABLE_THRESHOLD = 192 * 1024 * 1024;
/**
- * The max number of del files that is allowed in the mob file compaction. In the mob file
+ * The max number of del files that is allowed in the mob file compaction. In the mob
* compaction, when the number of existing del files is larger than this value, they are merged
* until number of del files is not larger this value. The default value is 3.
*/
public static final String MOB_DELFILE_MAX_COUNT = "hbase.mob.delfile.max.count";
public static final int DEFAULT_MOB_DELFILE_MAX_COUNT = 3;
/**
- * The max number of the mob files that is allowed in a batch of the mob file compaction.
- * The mob file compaction merges the small mob files to bigger ones. If the number of the
+ * The max number of the mob files that is allowed in a batch of the mob compaction.
+ * The mob compaction merges the small mob files to bigger ones. If the number of the
* small files is very large, it could lead to a "too many opened file handlers" in the merge.
* And the merge has to be split into batches. This value limits the number of mob files
- * that are selected in a batch of the mob file compaction. The default value is 100.
+ * that are selected in a batch of the mob compaction. The default value is 100.
*/
- public static final String MOB_FILE_COMPACTION_BATCH_SIZE =
- "hbase.mob.file.compaction.batch.size";
- public static final int DEFAULT_MOB_FILE_COMPACTION_BATCH_SIZE = 100;
+ public static final String MOB_COMPACTION_BATCH_SIZE =
+ "hbase.mob.compaction.batch.size";
+ public static final int DEFAULT_MOB_COMPACTION_BATCH_SIZE = 100;
/**
- * The period that MobFileCompactionChore runs. The unit is millisecond.
+ * The period that MobCompactionChore runs. The unit is second.
* The default value is one week.
*/
- public static final String MOB_FILE_COMPACTION_CHORE_PERIOD =
- "hbase.mob.file.compaction.chore.period";
- public static final int DEFAULT_MOB_FILE_COMPACTION_CHORE_PERIOD =
+ public static final String MOB_COMPACTION_CHORE_PERIOD =
+ "hbase.mob.compaction.chore.period";
+ public static final int DEFAULT_MOB_COMPACTION_CHORE_PERIOD =
24 * 60 * 60 * 7; // a week
- public static final String MOB_FILE_COMPACTOR_CLASS_KEY = "hbase.mob.file.compactor.class";
+ public static final String MOB_COMPACTOR_CLASS_KEY = "hbase.mob.compactor.class";
/**
- * The max number of threads used in MobFileCompactor.
+ * The max number of threads used in MobCompactor.
*/
- public static final String MOB_FILE_COMPACTION_THREADS_MAX =
- "hbase.mob.file.compaction.threads.max";
- public static final int DEFAULT_MOB_FILE_COMPACTION_THREADS_MAX = 1;
+ public static final String MOB_COMPACTION_THREADS_MAX =
+ "hbase.mob.compaction.threads.max";
+ public static final int DEFAULT_MOB_COMPACTION_THREADS_MAX = 1;
private MobConstants() {
}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileCache.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileCache.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileCache.java
index 7d8c9a5..0780f87 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileCache.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileCache.java
@@ -177,7 +177,7 @@ public class MobFileCache {
evictedFileCount.incrementAndGet();
}
} catch (IOException e) {
- LOG.error("Fail to evict the file " + fileName, e);
+ LOG.error("Failed to evict the file " + fileName, e);
} finally {
if (lockEntry != null) {
keyLock.releaseLockEntry(lockEntry);
@@ -249,7 +249,7 @@ public class MobFileCache {
public void shutdown() {
this.scheduleThreadPool.shutdown();
- for (int i = 0; i < 10; i++) {
+ for (int i = 0; i < 100; i++) {
if (!this.scheduleThreadPool.isShutdown()) {
try {
Thread.sleep(10);
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
index 937e965..796fe4d 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
@@ -26,9 +26,9 @@ import org.apache.hadoop.hbase.util.MD5Hash;
* It consists of a md5 of a start key, a date and an uuid.
* It looks like md5(start) + date + uuid.
* <ol>
- * <li>0-31 characters: md5 hex string of a start key. Since the length of the start key is not
+ * <li>characters 0-31: md5 hex string of a start key. Since the length of the start key is not
* fixed, have to use the md5 instead which has a fix length.</li>
- * <li>32-39 characters: a string of a date with format yyyymmdd. The date is the latest timestamp
+ * <li>characters 32-39: a string of a date with format yyyymmdd. The date is the latest timestamp
* of cells in this file</li>
* <li>the remaining characters: the uuid.</li>
* </ol>
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobStoreEngine.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobStoreEngine.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobStoreEngine.java
index 2d5f1ad..a54660c 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobStoreEngine.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobStoreEngine.java
@@ -43,6 +43,6 @@ public class MobStoreEngine extends DefaultStoreEngine {
*/
@Override
protected void createCompactor(Configuration conf, Store store) throws IOException {
- compactor = new DefaultMobCompactor(conf, store);
+ compactor = new DefaultMobStoreCompactor(conf, store);
}
}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java
index bbdc47a..c40767c 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobUtils.java
@@ -48,6 +48,7 @@ import org.apache.hadoop.hbase.CellComparator;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.Tag;
@@ -63,8 +64,8 @@ import org.apache.hadoop.hbase.io.hfile.HFileContext;
import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
import org.apache.hadoop.hbase.master.TableLockManager;
import org.apache.hadoop.hbase.master.TableLockManager.TableLock;
-import org.apache.hadoop.hbase.mob.filecompactions.MobFileCompactor;
-import org.apache.hadoop.hbase.mob.filecompactions.PartitionedMobFileCompactor;
+import org.apache.hadoop.hbase.mob.compactions.MobCompactor;
+import org.apache.hadoop.hbase.mob.compactions.PartitionedMobCompactor;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HStore;
import org.apache.hadoop.hbase.regionserver.StoreFile;
@@ -249,7 +250,7 @@ public class MobUtils {
try {
stats = fs.listStatus(path);
} catch (FileNotFoundException e) {
- LOG.warn("Fail to find the mob file " + path, e);
+ LOG.warn("Failed to find the mob file " + path, e);
}
if (null == stats) {
// no file found
@@ -287,7 +288,7 @@ public class MobUtils {
filesToClean);
deletedFileCount = filesToClean.size();
} catch (IOException e) {
- LOG.error("Fail to delete the mob files " + filesToClean, e);
+ LOG.error("Failed to delete the mob files " + filesToClean, e);
}
}
LOG.info(deletedFileCount + " expired mob files are deleted");
@@ -555,7 +556,7 @@ public class MobUtils {
}
/**
- * Creates a writer for the del file in temp directory.
+ * Creates a writer for the mob file in temp directory.
* @param conf The current configuration.
* @param fs The current file system.
* @param family The descriptor of the current column family.
@@ -631,7 +632,7 @@ public class MobUtils {
storeFile = new StoreFile(fs, path, conf, cacheConfig, BloomType.NONE);
storeFile.createReader();
} catch (IOException e) {
- LOG.error("Fail to open mob file[" + path + "], keep it in temp directory.", e);
+ LOG.error("Failed to open mob file[" + path + "], keep it in temp directory.", e);
throw e;
} finally {
if (storeFile != null) {
@@ -692,22 +693,22 @@ public class MobUtils {
}
/**
- * Performs the mob file compaction.
+ * Performs the mob compaction.
* @param conf the Configuration
* @param fs the file system
* @param tableName the table the compact
* @param hcd the column descriptor
* @param pool the thread pool
* @param tableLockManager the tableLock manager
- * @param isForceAllFiles Whether add all mob files into the compaction.
+ * @param allFiles Whether add all mob files into the compaction.
*/
- public static void doMobFileCompaction(Configuration conf, FileSystem fs, TableName tableName,
+ public static void doMobCompaction(Configuration conf, FileSystem fs, TableName tableName,
HColumnDescriptor hcd, ExecutorService pool, TableLockManager tableLockManager,
- boolean isForceAllFiles) throws IOException {
- String className = conf.get(MobConstants.MOB_FILE_COMPACTOR_CLASS_KEY,
- PartitionedMobFileCompactor.class.getName());
- // instantiate the mob file compactor.
- MobFileCompactor compactor = null;
+ boolean allFiles) throws IOException {
+ String className = conf.get(MobConstants.MOB_COMPACTOR_CLASS_KEY,
+ PartitionedMobCompactor.class.getName());
+ // instantiate the mob compactor.
+ MobCompactor compactor = null;
try {
compactor = ReflectionUtils.instantiateWithCustomCtor(className, new Class[] {
Configuration.class, FileSystem.class, TableName.class, HColumnDescriptor.class,
@@ -724,21 +725,21 @@ public class MobUtils {
// the tableLockManager might be null in testing. In that case, it is lock-free.
if (tableLockManager != null) {
lock = tableLockManager.writeLock(MobUtils.getTableLockName(tableName),
- "Run MobFileCompaction");
+ "Run MobCompactor");
lock.acquire();
}
tableLocked = true;
- compactor.compact(isForceAllFiles);
+ compactor.compact(allFiles);
} catch (Exception e) {
- LOG.error("Fail to compact the mob files for the column " + hcd.getNameAsString()
+ LOG.error("Failed to compact the mob files for the column " + hcd.getNameAsString()
+ " in the table " + tableName.getNameAsString(), e);
} finally {
if (lock != null && tableLocked) {
try {
lock.release();
} catch (IOException e) {
- LOG.error("Fail to release the write lock for the table " + tableName.getNameAsString(),
- e);
+ LOG.error(
+ "Failed to release the write lock for the table " + tableName.getNameAsString(), e);
}
}
}
@@ -749,15 +750,15 @@ public class MobUtils {
* @param conf the Configuration
* @return A thread pool.
*/
- public static ExecutorService createMobFileCompactorThreadPool(Configuration conf) {
- int maxThreads = conf.getInt(MobConstants.MOB_FILE_COMPACTION_THREADS_MAX,
- MobConstants.DEFAULT_MOB_FILE_COMPACTION_THREADS_MAX);
+ public static ExecutorService createMobCompactorThreadPool(Configuration conf) {
+ int maxThreads = conf.getInt(MobConstants.MOB_COMPACTION_THREADS_MAX,
+ MobConstants.DEFAULT_MOB_COMPACTION_THREADS_MAX);
if (maxThreads == 0) {
maxThreads = 1;
}
final SynchronousQueue<Runnable> queue = new SynchronousQueue<Runnable>();
ThreadPoolExecutor pool = new ThreadPoolExecutor(1, maxThreads, 60, TimeUnit.SECONDS, queue,
- Threads.newDaemonThreadFactory("MobFileCompactor"), new RejectedExecutionHandler() {
+ Threads.newDaemonThreadFactory("MobCompactor"), new RejectedExecutionHandler() {
@Override
public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
try {
@@ -839,4 +840,19 @@ public class MobUtils {
}
return cryptoContext;
}
+
+ /**
+ * Checks whether this table has mob-enabled columns.
+ * @param htd The current table descriptor.
+ * @return Whether this table has mob-enabled columns.
+ */
+ public static boolean hasMobColumns(HTableDescriptor htd) {
+ HColumnDescriptor[] hcds = htd.getColumnFamilies();
+ for (HColumnDescriptor hcd : hcds) {
+ if (hcd.isMobEnabled()) {
+ return true;
+ }
+ }
+ return false;
+ }
}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactionRequest.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactionRequest.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactionRequest.java
new file mode 100644
index 0000000..5d162b4
--- /dev/null
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactionRequest.java
@@ -0,0 +1,64 @@
+/**
+ *
+ * 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.hadoop.hbase.mob.compactions;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+
+/**
+ * The compaction request for mob files.
+ */
+@InterfaceAudience.Private
+public abstract class MobCompactionRequest {
+
+ protected long selectionTime;
+ protected CompactionType type = CompactionType.PART_FILES;
+
+ public void setCompactionType(CompactionType type) {
+ this.type = type;
+ }
+
+ /**
+ * Gets the selection time.
+ * @return The selection time.
+ */
+ public long getSelectionTime() {
+ return this.selectionTime;
+ }
+
+ /**
+ * Gets the compaction type.
+ * @return The compaction type.
+ */
+ public CompactionType getCompactionType() {
+ return type;
+ }
+
+ protected enum CompactionType {
+
+ /**
+ * Part of mob files are selected.
+ */
+ PART_FILES,
+
+ /**
+ * All of mob files are selected.
+ */
+ ALL_FILES;
+ }
+}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactor.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactor.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactor.java
new file mode 100644
index 0000000..156c6f6
--- /dev/null
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/MobCompactor.java
@@ -0,0 +1,90 @@
+/**
+ *
+ * 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.hadoop.hbase.mob.compactions;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.mob.MobUtils;
+import org.apache.hadoop.hbase.util.FSUtils;
+
+/**
+ * A mob compactor to directly compact the mob files.
+ */
+@InterfaceAudience.Private
+public abstract class MobCompactor {
+
+ protected FileSystem fs;
+ protected Configuration conf;
+ protected TableName tableName;
+ protected HColumnDescriptor column;
+
+ protected Path mobTableDir;
+ protected Path mobFamilyDir;
+ protected ExecutorService pool;
+
+ public MobCompactor(Configuration conf, FileSystem fs, TableName tableName,
+ HColumnDescriptor column, ExecutorService pool) {
+ this.conf = conf;
+ this.fs = fs;
+ this.tableName = tableName;
+ this.column = column;
+ this.pool = pool;
+ mobTableDir = FSUtils.getTableDir(MobUtils.getMobHome(conf), tableName);
+ mobFamilyDir = MobUtils.getMobFamilyPath(conf, tableName, column.getNameAsString());
+ }
+
+ /**
+ * Compacts the mob files for the current column family.
+ * @return The paths of new mob files generated in the compaction.
+ * @throws IOException
+ */
+ public List<Path> compact() throws IOException {
+ return compact(false);
+ }
+
+ /**
+ * Compacts the mob files by compaction type for the current column family.
+ * @param allFiles Whether add all mob files into the compaction.
+ * @return The paths of new mob files generated in the compaction.
+ * @throws IOException
+ */
+ public List<Path> compact(boolean allFiles) throws IOException {
+ return compact(Arrays.asList(fs.listStatus(mobFamilyDir)), allFiles);
+ }
+
+ /**
+ * Compacts the candidate mob files.
+ * @param files The candidate mob files.
+ * @param allFiles Whether add all mob files into the compaction.
+ * @return The paths of new mob files generated in the compaction.
+ * @throws IOException
+ */
+ public abstract List<Path> compact(List<FileStatus> files, boolean allFiles)
+ throws IOException;
+}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactionRequest.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactionRequest.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactionRequest.java
new file mode 100644
index 0000000..af1eb4a
--- /dev/null
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactionRequest.java
@@ -0,0 +1,146 @@
+/**
+ *
+ * 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.hadoop.hbase.mob.compactions;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
+
+/**
+ * An implementation of {@link MobCompactionRequest} that is used in
+ * {@link PartitionedMobCompactor}.
+ * The mob files that have the same start key and date in their names belong to
+ * the same partition.
+ */
+@InterfaceAudience.Private
+public class PartitionedMobCompactionRequest extends MobCompactionRequest {
+
+ protected Collection<FileStatus> delFiles;
+ protected Collection<CompactionPartition> compactionPartitions;
+
+ public PartitionedMobCompactionRequest(Collection<CompactionPartition> compactionPartitions,
+ Collection<FileStatus> delFiles) {
+ this.selectionTime = EnvironmentEdgeManager.currentTime();
+ this.compactionPartitions = compactionPartitions;
+ this.delFiles = delFiles;
+ }
+
+ /**
+ * Gets the compaction partitions.
+ * @return The compaction partitions.
+ */
+ public Collection<CompactionPartition> getCompactionPartitions() {
+ return this.compactionPartitions;
+ }
+
+ /**
+ * Gets the del files.
+ * @return The del files.
+ */
+ public Collection<FileStatus> getDelFiles() {
+ return this.delFiles;
+ }
+
+ /**
+ * The partition in the mob compaction.
+ * The mob files that have the same start key and date in their names belong to
+ * the same partition.
+ */
+ protected static class CompactionPartition {
+ private List<FileStatus> files = new ArrayList<FileStatus>();
+ private CompactionPartitionId partitionId;
+
+ public CompactionPartition(CompactionPartitionId partitionId) {
+ this.partitionId = partitionId;
+ }
+
+ public CompactionPartitionId getPartitionId() {
+ return this.partitionId;
+ }
+
+ public void addFile(FileStatus file) {
+ files.add(file);
+ }
+
+ public List<FileStatus> listFiles() {
+ return Collections.unmodifiableList(files);
+ }
+ }
+
+ /**
+ * The partition id that consists of start key and date of the mob file name.
+ */
+ public static class CompactionPartitionId {
+
+ private String startKey;
+ private String date;
+
+ public CompactionPartitionId(String startKey, String date) {
+ if (startKey == null || date == null) {
+ throw new IllegalArgumentException("Neither of start key and date could be null");
+ }
+ this.startKey = startKey;
+ this.date = date;
+ }
+
+ public String getStartKey() {
+ return this.startKey;
+ }
+
+ public String getDate() {
+ return this.date;
+ }
+
+ @Override
+ public int hashCode() {
+ int result = 17;
+ result = 31 * result + startKey.hashCode();
+ result = 31 * result + date.hashCode();
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof CompactionPartitionId)) {
+ return false;
+ }
+ CompactionPartitionId another = (CompactionPartitionId) obj;
+ if (!this.startKey.equals(another.startKey)) {
+ return false;
+ }
+ if (!this.date.equals(another.date)) {
+ return false;
+ }
+ return true;
+ }
+
+ @Override
+ public String toString() {
+ return new StringBuilder(startKey).append(date).toString();
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java
new file mode 100644
index 0000000..065787e
--- /dev/null
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/compactions/PartitionedMobCompactor.java
@@ -0,0 +1,655 @@
+/**
+ *
+ * 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.hadoop.hbase.mob.compactions;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.CellComparator;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.Tag;
+import org.apache.hadoop.hbase.TagType;
+import org.apache.hadoop.hbase.client.Connection;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.Table;
+import org.apache.hadoop.hbase.io.HFileLink;
+import org.apache.hadoop.hbase.io.crypto.Encryption;
+import org.apache.hadoop.hbase.io.hfile.CacheConfig;
+import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles;
+import org.apache.hadoop.hbase.mob.MobConstants;
+import org.apache.hadoop.hbase.mob.MobFileName;
+import org.apache.hadoop.hbase.mob.MobUtils;
+import org.apache.hadoop.hbase.mob.compactions.MobCompactionRequest.CompactionType;
+import org.apache.hadoop.hbase.mob.compactions.PartitionedMobCompactionRequest.CompactionPartition;
+import org.apache.hadoop.hbase.mob.compactions.PartitionedMobCompactionRequest.CompactionPartitionId;
+import org.apache.hadoop.hbase.regionserver.BloomType;
+import org.apache.hadoop.hbase.regionserver.HStore;
+import org.apache.hadoop.hbase.regionserver.ScanInfo;
+import org.apache.hadoop.hbase.regionserver.ScanType;
+import org.apache.hadoop.hbase.regionserver.ScannerContext;
+import org.apache.hadoop.hbase.regionserver.StoreFile;
+import org.apache.hadoop.hbase.regionserver.StoreFile.Writer;
+import org.apache.hadoop.hbase.regionserver.StoreFileInfo;
+import org.apache.hadoop.hbase.regionserver.StoreFileScanner;
+import org.apache.hadoop.hbase.regionserver.StoreScanner;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.Pair;
+
+/**
+ * An implementation of {@link MobCompactor} that compacts the mob files in partitions.
+ */
+@InterfaceAudience.Private
+public class PartitionedMobCompactor extends MobCompactor {
+
+ private static final Log LOG = LogFactory.getLog(PartitionedMobCompactor.class);
+ protected long mergeableSize;
+ protected int delFileMaxCount;
+ /** The number of files compacted in a batch */
+ protected int compactionBatchSize;
+ protected int compactionKVMax;
+
+ private Path tempPath;
+ private Path bulkloadPath;
+ private CacheConfig compactionCacheConfig;
+ private Tag tableNameTag;
+ private Encryption.Context cryptoContext = Encryption.Context.NONE;
+
+ public PartitionedMobCompactor(Configuration conf, FileSystem fs, TableName tableName,
+ HColumnDescriptor column, ExecutorService pool) throws IOException {
+ super(conf, fs, tableName, column, pool);
+ mergeableSize = conf.getLong(MobConstants.MOB_COMPACTION_MERGEABLE_THRESHOLD,
+ MobConstants.DEFAULT_MOB_COMPACTION_MERGEABLE_THRESHOLD);
+ delFileMaxCount = conf.getInt(MobConstants.MOB_DELFILE_MAX_COUNT,
+ MobConstants.DEFAULT_MOB_DELFILE_MAX_COUNT);
+ // default is 100
+ compactionBatchSize = conf.getInt(MobConstants.MOB_COMPACTION_BATCH_SIZE,
+ MobConstants.DEFAULT_MOB_COMPACTION_BATCH_SIZE);
+ tempPath = new Path(MobUtils.getMobHome(conf), MobConstants.TEMP_DIR_NAME);
+ bulkloadPath = new Path(tempPath, new Path(MobConstants.BULKLOAD_DIR_NAME, new Path(
+ tableName.getNamespaceAsString(), tableName.getQualifierAsString())));
+ compactionKVMax = this.conf.getInt(HConstants.COMPACTION_KV_MAX,
+ HConstants.COMPACTION_KV_MAX_DEFAULT);
+ Configuration copyOfConf = new Configuration(conf);
+ copyOfConf.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0f);
+ compactionCacheConfig = new CacheConfig(copyOfConf);
+ tableNameTag = new Tag(TagType.MOB_TABLE_NAME_TAG_TYPE, tableName.getName());
+ cryptoContext = MobUtils.createEncryptionContext(copyOfConf, column);
+ }
+
+ @Override
+ public List<Path> compact(List<FileStatus> files, boolean allFiles) throws IOException {
+ if (files == null || files.isEmpty()) {
+ LOG.info("No candidate mob files");
+ return null;
+ }
+ LOG.info("is allFiles: " + allFiles);
+ // find the files to compact.
+ PartitionedMobCompactionRequest request = select(files, allFiles);
+ // compact the files.
+ return performCompaction(request);
+ }
+
+ /**
+ * Selects the compacted mob/del files.
+ * Iterates the candidates to find out all the del files and small mob files.
+ * @param candidates All the candidates.
+ * @param allFiles Whether add all mob files into the compaction.
+ * @return A compaction request.
+ * @throws IOException
+ */
+ protected PartitionedMobCompactionRequest select(List<FileStatus> candidates,
+ boolean allFiles) throws IOException {
+ Collection<FileStatus> allDelFiles = new ArrayList<FileStatus>();
+ Map<CompactionPartitionId, CompactionPartition> filesToCompact =
+ new HashMap<CompactionPartitionId, CompactionPartition>();
+ int selectedFileCount = 0;
+ int irrelevantFileCount = 0;
+ for (FileStatus file : candidates) {
+ if (!file.isFile()) {
+ irrelevantFileCount++;
+ continue;
+ }
+ // group the del files and small files.
+ FileStatus linkedFile = file;
+ if (HFileLink.isHFileLink(file.getPath())) {
+ HFileLink link = HFileLink.buildFromHFileLinkPattern(conf, file.getPath());
+ linkedFile = getLinkedFileStatus(link);
+ if (linkedFile == null) {
+ // If the linked file cannot be found, regard it as an irrelevantFileCount file
+ irrelevantFileCount++;
+ continue;
+ }
+ }
+ if (StoreFileInfo.isDelFile(linkedFile.getPath())) {
+ allDelFiles.add(file);
+ } else if (allFiles || linkedFile.getLen() < mergeableSize) {
+ // add all files if allFiles is true,
+ // otherwise add the small files to the merge pool
+ MobFileName fileName = MobFileName.create(linkedFile.getPath().getName());
+ CompactionPartitionId id = new CompactionPartitionId(fileName.getStartKey(),
+ fileName.getDate());
+ CompactionPartition compactionPartition = filesToCompact.get(id);
+ if (compactionPartition == null) {
+ compactionPartition = new CompactionPartition(id);
+ compactionPartition.addFile(file);
+ filesToCompact.put(id, compactionPartition);
+ } else {
+ compactionPartition.addFile(file);
+ }
+ selectedFileCount++;
+ }
+ }
+ PartitionedMobCompactionRequest request = new PartitionedMobCompactionRequest(
+ filesToCompact.values(), allDelFiles);
+ if (candidates.size() == (allDelFiles.size() + selectedFileCount + irrelevantFileCount)) {
+ // all the files are selected
+ request.setCompactionType(CompactionType.ALL_FILES);
+ }
+ LOG.info("The compaction type is " + request.getCompactionType() + ", the request has "
+ + allDelFiles.size() + " del files, " + selectedFileCount + " selected files, and "
+ + irrelevantFileCount + " irrelevant files");
+ return request;
+ }
+
+ /**
+ * Performs the compaction on the selected files.
+ * <ol>
+ * <li>Compacts the del files.</li>
+ * <li>Compacts the selected small mob files and all the del files.</li>
+ * <li>If all the candidates are selected, delete the del files.</li>
+ * </ol>
+ * @param request The compaction request.
+ * @return The paths of new mob files generated in the compaction.
+ * @throws IOException
+ */
+ protected List<Path> performCompaction(PartitionedMobCompactionRequest request)
+ throws IOException {
+ // merge the del files
+ List<Path> delFilePaths = new ArrayList<Path>();
+ for (FileStatus delFile : request.delFiles) {
+ delFilePaths.add(delFile.getPath());
+ }
+ List<Path> newDelPaths = compactDelFiles(request, delFilePaths);
+ List<StoreFile> newDelFiles = new ArrayList<StoreFile>();
+ for (Path newDelPath : newDelPaths) {
+ StoreFile sf = new StoreFile(fs, newDelPath, conf, compactionCacheConfig, BloomType.NONE);
+ newDelFiles.add(sf);
+ }
+ LOG.info("After merging, there are " + newDelFiles.size() + " del files");
+ // compact the mob files by partitions.
+ List<Path> paths = compactMobFiles(request, newDelFiles);
+ LOG.info("After compaction, there are " + paths.size() + " mob files");
+ // archive the del files if all the mob files are selected.
+ if (request.type == CompactionType.ALL_FILES && !newDelPaths.isEmpty()) {
+ LOG.info("After a mob compaction with all files selected, archiving the del files "
+ + newDelPaths);
+ try {
+ MobUtils.removeMobFiles(conf, fs, tableName, mobTableDir, column.getName(), newDelFiles);
+ } catch (IOException e) {
+ LOG.error("Failed to archive the del files " + newDelPaths, e);
+ }
+ }
+ return paths;
+ }
+
+ /**
+ * Compacts the selected small mob files and all the del files.
+ * @param request The compaction request.
+ * @param delFiles The del files.
+ * @return The paths of new mob files after compactions.
+ * @throws IOException
+ */
+ protected List<Path> compactMobFiles(final PartitionedMobCompactionRequest request,
+ final List<StoreFile> delFiles) throws IOException {
+ Collection<CompactionPartition> partitions = request.compactionPartitions;
+ if (partitions == null || partitions.isEmpty()) {
+ LOG.info("No partitions of mob files");
+ return Collections.emptyList();
+ }
+ List<Path> paths = new ArrayList<Path>();
+ Connection c = ConnectionFactory.createConnection(conf);
+ final Table table = c.getTable(tableName);
+ try {
+ Map<CompactionPartitionId, Future<List<Path>>> results =
+ new HashMap<CompactionPartitionId, Future<List<Path>>>();
+ // compact the mob files by partitions in parallel.
+ for (final CompactionPartition partition : partitions) {
+ results.put(partition.getPartitionId(), pool.submit(new Callable<List<Path>>() {
+ @Override
+ public List<Path> call() throws Exception {
+ LOG.info("Compacting mob files for partition " + partition.getPartitionId());
+ return compactMobFilePartition(request, partition, delFiles, table);
+ }
+ }));
+ }
+ // compact the partitions in parallel.
+ List<CompactionPartitionId> failedPartitions = new ArrayList<CompactionPartitionId>();
+ for (Entry<CompactionPartitionId, Future<List<Path>>> result : results.entrySet()) {
+ try {
+ paths.addAll(result.getValue().get());
+ } catch (Exception e) {
+ // just log the error
+ LOG.error("Failed to compact the partition " + result.getKey(), e);
+ failedPartitions.add(result.getKey());
+ }
+ }
+ if (!failedPartitions.isEmpty()) {
+ // if any partition fails in the compaction, directly throw an exception.
+ throw new IOException("Failed to compact the partitions " + failedPartitions);
+ }
+ } finally {
+ try {
+ table.close();
+ } catch (IOException e) {
+ LOG.error("Failed to close the HTable", e);
+ }
+ }
+ return paths;
+ }
+
+ /**
+ * Compacts a partition of selected small mob files and all the del files.
+ * @param request The compaction request.
+ * @param partition A compaction partition.
+ * @param delFiles The del files.
+ * @param table The current table.
+ * @return The paths of new mob files after compactions.
+ * @throws IOException
+ */
+ private List<Path> compactMobFilePartition(PartitionedMobCompactionRequest request,
+ CompactionPartition partition, List<StoreFile> delFiles, Table table) throws IOException {
+ List<Path> newFiles = new ArrayList<Path>();
+ List<FileStatus> files = partition.listFiles();
+ int offset = 0;
+ Path bulkloadPathOfPartition = new Path(bulkloadPath, partition.getPartitionId().toString());
+ Path bulkloadColumnPath = new Path(bulkloadPathOfPartition, column.getNameAsString());
+ while (offset < files.size()) {
+ int batch = compactionBatchSize;
+ if (files.size() - offset < compactionBatchSize) {
+ batch = files.size() - offset;
+ }
+ if (batch == 1 && delFiles.isEmpty()) {
+ // only one file left and no del files, do not compact it,
+ // and directly add it to the new files.
+ newFiles.add(files.get(offset).getPath());
+ offset++;
+ continue;
+ }
+ // clean the bulkload directory to avoid loading old files.
+ fs.delete(bulkloadPathOfPartition, true);
+ // add the selected mob files and del files into filesToCompact
+ List<StoreFile> filesToCompact = new ArrayList<StoreFile>();
+ for (int i = offset; i < batch + offset; i++) {
+ StoreFile sf = new StoreFile(fs, files.get(i).getPath(), conf, compactionCacheConfig,
+ BloomType.NONE);
+ filesToCompact.add(sf);
+ }
+ filesToCompact.addAll(delFiles);
+ // compact the mob files in a batch.
+ compactMobFilesInBatch(request, partition, table, filesToCompact, batch,
+ bulkloadPathOfPartition, bulkloadColumnPath, newFiles);
+ // move to the next batch.
+ offset += batch;
+ }
+ LOG.info("Compaction is finished. The number of mob files is changed from " + files.size()
+ + " to " + newFiles.size());
+ return newFiles;
+ }
+
+ /**
+ * Compacts a partition of selected small mob files and all the del files in a batch.
+ * @param request The compaction request.
+ * @param partition A compaction partition.
+ * @param table The current table.
+ * @param filesToCompact The files to be compacted.
+ * @param batch The number of mob files to be compacted in a batch.
+ * @param bulkloadPathOfPartition The directory where the bulkload column of the current
+ * partition is saved.
+ * @param bulkloadColumnPath The directory where the bulkload files of current partition
+ * are saved.
+ * @param newFiles The paths of new mob files after compactions.
+ * @throws IOException
+ */
+ private void compactMobFilesInBatch(PartitionedMobCompactionRequest request,
+ CompactionPartition partition, Table table, List<StoreFile> filesToCompact, int batch,
+ Path bulkloadPathOfPartition, Path bulkloadColumnPath, List<Path> newFiles)
+ throws IOException {
+ // open scanner to the selected mob files and del files.
+ StoreScanner scanner = createScanner(filesToCompact, ScanType.COMPACT_DROP_DELETES);
+ // the mob files to be compacted, not include the del files.
+ List<StoreFile> mobFilesToCompact = filesToCompact.subList(0, batch);
+ // Pair(maxSeqId, cellsCount)
+ Pair<Long, Long> fileInfo = getFileInfo(mobFilesToCompact);
+ // open writers for the mob files and new ref store files.
+ Writer writer = null;
+ Writer refFileWriter = null;
+ Path filePath = null;
+ Path refFilePath = null;
+ long mobCells = 0;
+ try {
+ writer = MobUtils.createWriter(conf, fs, column, partition.getPartitionId().getDate(),
+ tempPath, Long.MAX_VALUE, column.getCompactionCompression(), partition.getPartitionId()
+ .getStartKey(), compactionCacheConfig, cryptoContext);
+ filePath = writer.getPath();
+ byte[] fileName = Bytes.toBytes(filePath.getName());
+ // create a temp file and open a writer for it in the bulkloadPath
+ refFileWriter = MobUtils.createRefFileWriter(conf, fs, column, bulkloadColumnPath, fileInfo
+ .getSecond().longValue(), compactionCacheConfig, cryptoContext);
+ refFilePath = refFileWriter.getPath();
+ List<Cell> cells = new ArrayList<Cell>();
+ boolean hasMore = false;
+ ScannerContext scannerContext =
+ ScannerContext.newBuilder().setBatchLimit(compactionKVMax).build();
+ do {
+ hasMore = scanner.next(cells, scannerContext);
+ for (Cell cell : cells) {
+ // write the mob cell to the mob file.
+ writer.append(cell);
+ // write the new reference cell to the store file.
+ KeyValue reference = MobUtils.createMobRefKeyValue(cell, fileName, tableNameTag);
+ refFileWriter.append(reference);
+ mobCells++;
+ }
+ cells.clear();
+ } while (hasMore);
+ } finally {
+ // close the scanner.
+ scanner.close();
+ // append metadata to the mob file, and close the mob file writer.
+ closeMobFileWriter(writer, fileInfo.getFirst(), mobCells);
+ // append metadata and bulkload info to the ref mob file, and close the writer.
+ closeRefFileWriter(refFileWriter, fileInfo.getFirst(), request.selectionTime);
+ }
+ if (mobCells > 0) {
+ // commit mob file
+ MobUtils.commitFile(conf, fs, filePath, mobFamilyDir, compactionCacheConfig);
+ // bulkload the ref file
+ bulkloadRefFile(table, bulkloadPathOfPartition, filePath.getName());
+ newFiles.add(new Path(mobFamilyDir, filePath.getName()));
+ } else {
+ // remove the new files
+ // the mob file is empty, delete it instead of committing.
+ deletePath(filePath);
+ // the ref file is empty, delete it instead of committing.
+ deletePath(refFilePath);
+ }
+ // archive the old mob files, do not archive the del files.
+ try {
+ MobUtils
+ .removeMobFiles(conf, fs, tableName, mobTableDir, column.getName(), mobFilesToCompact);
+ } catch (IOException e) {
+ LOG.error("Failed to archive the files " + mobFilesToCompact, e);
+ }
+ }
+
+ /**
+ * Compacts the del files in batches which avoids opening too many files.
+ * @param request The compaction request.
+ * @param delFilePaths
+ * @return The paths of new del files after merging or the original files if no merging
+ * is necessary.
+ * @throws IOException
+ */
+ protected List<Path> compactDelFiles(PartitionedMobCompactionRequest request,
+ List<Path> delFilePaths) throws IOException {
+ if (delFilePaths.size() <= delFileMaxCount) {
+ return delFilePaths;
+ }
+ // when there are more del files than the number that is allowed, merge it firstly.
+ int offset = 0;
+ List<Path> paths = new ArrayList<Path>();
+ while (offset < delFilePaths.size()) {
+ // get the batch
+ int batch = compactionBatchSize;
+ if (delFilePaths.size() - offset < compactionBatchSize) {
+ batch = delFilePaths.size() - offset;
+ }
+ List<StoreFile> batchedDelFiles = new ArrayList<StoreFile>();
+ if (batch == 1) {
+ // only one file left, do not compact it, directly add it to the new files.
+ paths.add(delFilePaths.get(offset));
+ offset++;
+ continue;
+ }
+ for (int i = offset; i < batch + offset; i++) {
+ batchedDelFiles.add(new StoreFile(fs, delFilePaths.get(i), conf, compactionCacheConfig,
+ BloomType.NONE));
+ }
+ // compact the del files in a batch.
+ paths.add(compactDelFilesInBatch(request, batchedDelFiles));
+ // move to the next batch.
+ offset += batch;
+ }
+ return compactDelFiles(request, paths);
+ }
+
+ /**
+ * Compacts the del file in a batch.
+ * @param request The compaction request.
+ * @param delFiles The del files.
+ * @return The path of new del file after merging.
+ * @throws IOException
+ */
+ private Path compactDelFilesInBatch(PartitionedMobCompactionRequest request,
+ List<StoreFile> delFiles) throws IOException {
+ // create a scanner for the del files.
+ StoreScanner scanner = createScanner(delFiles, ScanType.COMPACT_RETAIN_DELETES);
+ Writer writer = null;
+ Path filePath = null;
+ try {
+ writer = MobUtils.createDelFileWriter(conf, fs, column,
+ MobUtils.formatDate(new Date(request.selectionTime)), tempPath, Long.MAX_VALUE,
+ column.getCompactionCompression(), HConstants.EMPTY_START_ROW, compactionCacheConfig,
+ cryptoContext);
+ filePath = writer.getPath();
+ List<Cell> cells = new ArrayList<Cell>();
+ boolean hasMore = false;
+ ScannerContext scannerContext =
+ ScannerContext.newBuilder().setBatchLimit(compactionKVMax).build();
+ do {
+ hasMore = scanner.next(cells, scannerContext);
+ for (Cell cell : cells) {
+ writer.append(cell);
+ }
+ cells.clear();
+ } while (hasMore);
+ } finally {
+ scanner.close();
+ if (writer != null) {
+ try {
+ writer.close();
+ } catch (IOException e) {
+ LOG.error("Failed to close the writer of the file " + filePath, e);
+ }
+ }
+ }
+ // commit the new del file
+ Path path = MobUtils.commitFile(conf, fs, filePath, mobFamilyDir, compactionCacheConfig);
+ // archive the old del files
+ try {
+ MobUtils.removeMobFiles(conf, fs, tableName, mobTableDir, column.getName(), delFiles);
+ } catch (IOException e) {
+ LOG.error("Failed to archive the old del files " + delFiles, e);
+ }
+ return path;
+ }
+
+ /**
+ * Creates a store scanner.
+ * @param filesToCompact The files to be compacted.
+ * @param scanType The scan type.
+ * @return The store scanner.
+ * @throws IOException
+ */
+ private StoreScanner createScanner(List<StoreFile> filesToCompact, ScanType scanType)
+ throws IOException {
+ List scanners = StoreFileScanner.getScannersForStoreFiles(filesToCompact, false, true, false,
+ null, HConstants.LATEST_TIMESTAMP);
+ Scan scan = new Scan();
+ scan.setMaxVersions(column.getMaxVersions());
+ long ttl = HStore.determineTTLFromFamily(column);
+ ScanInfo scanInfo = new ScanInfo(column, ttl, 0, CellComparator.COMPARATOR);
+ StoreScanner scanner = new StoreScanner(scan, scanInfo, scanType, null, scanners, 0L,
+ HConstants.LATEST_TIMESTAMP);
+ return scanner;
+ }
+
+ /**
+ * Bulkloads the current file.
+ * @param table The current table.
+ * @param bulkloadDirectory The path of bulkload directory.
+ * @param fileName The current file name.
+ * @throws IOException
+ */
+ private void bulkloadRefFile(Table table, Path bulkloadDirectory, String fileName)
+ throws IOException {
+ // bulkload the ref file
+ try {
+ LoadIncrementalHFiles bulkload = new LoadIncrementalHFiles(conf);
+ bulkload.doBulkLoad(bulkloadDirectory, (HTable)table);
+ } catch (Exception e) {
+ // delete the committed mob file
+ deletePath(new Path(mobFamilyDir, fileName));
+ throw new IOException(e);
+ } finally {
+ // delete the bulkload files in bulkloadPath
+ deletePath(bulkloadDirectory);
+ }
+ }
+
+ /**
+ * Closes the mob file writer.
+ * @param writer The mob file writer.
+ * @param maxSeqId Maximum sequence id.
+ * @param mobCellsCount The number of mob cells.
+ * @throws IOException
+ */
+ private void closeMobFileWriter(Writer writer, long maxSeqId, long mobCellsCount)
+ throws IOException {
+ if (writer != null) {
+ writer.appendMetadata(maxSeqId, false, mobCellsCount);
+ try {
+ writer.close();
+ } catch (IOException e) {
+ LOG.error("Failed to close the writer of the file " + writer.getPath(), e);
+ }
+ }
+ }
+
+ /**
+ * Closes the ref file writer.
+ * @param writer The ref file writer.
+ * @param maxSeqId Maximum sequence id.
+ * @param bulkloadTime The timestamp at which the bulk load file is created.
+ * @throws IOException
+ */
+ private void closeRefFileWriter(Writer writer, long maxSeqId, long bulkloadTime)
+ throws IOException {
+ if (writer != null) {
+ writer.appendMetadata(maxSeqId, false);
+ writer.appendFileInfo(StoreFile.BULKLOAD_TIME_KEY, Bytes.toBytes(bulkloadTime));
+ try {
+ writer.close();
+ } catch (IOException e) {
+ LOG.error("Failed to close the writer of the ref file " + writer.getPath(), e);
+ }
+ }
+ }
+
+ /**
+ * Gets the max seqId and number of cells of the store files.
+ * @param storeFiles The store files.
+ * @return The pair of the max seqId and number of cells of the store files.
+ * @throws IOException
+ */
+ private Pair<Long, Long> getFileInfo(List<StoreFile> storeFiles) throws IOException {
+ long maxSeqId = 0;
+ long maxKeyCount = 0;
+ for (StoreFile sf : storeFiles) {
+ // the readers will be closed later after the merge.
+ maxSeqId = Math.max(maxSeqId, sf.getMaxSequenceId());
+ byte[] count = sf.createReader().loadFileInfo().get(StoreFile.MOB_CELLS_COUNT);
+ if (count != null) {
+ maxKeyCount += Bytes.toLong(count);
+ }
+ }
+ return new Pair<Long, Long>(Long.valueOf(maxSeqId), Long.valueOf(maxKeyCount));
+ }
+
+ /**
+ * Deletes a file.
+ * @param path The path of the file to be deleted.
+ */
+ private void deletePath(Path path) {
+ try {
+ if (path != null) {
+ fs.delete(path, true);
+ }
+ } catch (IOException e) {
+ LOG.error("Failed to delete the file " + path, e);
+ }
+ }
+
+ private FileStatus getLinkedFileStatus(HFileLink link) throws IOException {
+ Path[] locations = link.getLocations();
+ for (Path location : locations) {
+ FileStatus file = getFileStatus(location);
+ if (file != null) {
+ return file;
+ }
+ }
+ return null;
+ }
+
+ private FileStatus getFileStatus(Path path) throws IOException {
+ try {
+ if (path != null) {
+ FileStatus file = fs.getFileStatus(path);
+ return file;
+ }
+ } catch (FileNotFoundException e) {
+ LOG.warn("The file " + path + " can not be found", e);
+ }
+ return null;
+ }
+}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactionRequest.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactionRequest.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactionRequest.java
deleted file mode 100644
index 375ba8c..0000000
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactionRequest.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/**
- *
- * 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.hadoop.hbase.mob.filecompactions;
-
-import org.apache.hadoop.classification.InterfaceAudience;
-
-/**
- * The compaction request for mob files.
- */
-@InterfaceAudience.Private
-public abstract class MobFileCompactionRequest {
-
- protected long selectionTime;
- protected CompactionType type = CompactionType.PART_FILES;
-
- public void setCompactionType(CompactionType type) {
- this.type = type;
- }
-
- /**
- * Gets the selection time.
- * @return The selection time.
- */
- public long getSelectionTime() {
- return this.selectionTime;
- }
-
- /**
- * Gets the compaction type.
- * @return The compaction type.
- */
- public CompactionType getCompactionType() {
- return type;
- }
-
- protected enum CompactionType {
-
- /**
- * Part of mob files are selected.
- */
- PART_FILES,
-
- /**
- * All of mob files are selected.
- */
- ALL_FILES;
- }
-}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactor.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactor.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactor.java
deleted file mode 100644
index fcb39c5..0000000
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/MobFileCompactor.java
+++ /dev/null
@@ -1,90 +0,0 @@
-/**
- *
- * 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.hadoop.hbase.mob.filecompactions;
-
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.List;
-import java.util.concurrent.ExecutorService;
-
-import org.apache.hadoop.classification.InterfaceAudience;
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FileStatus;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.HColumnDescriptor;
-import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.mob.MobUtils;
-import org.apache.hadoop.hbase.util.FSUtils;
-
-/**
- * A mob file compactor to directly compact the mob files.
- */
-@InterfaceAudience.Private
-public abstract class MobFileCompactor {
-
- protected FileSystem fs;
- protected Configuration conf;
- protected TableName tableName;
- protected HColumnDescriptor column;
-
- protected Path mobTableDir;
- protected Path mobFamilyDir;
- protected ExecutorService pool;
-
- public MobFileCompactor(Configuration conf, FileSystem fs, TableName tableName,
- HColumnDescriptor column, ExecutorService pool) {
- this.conf = conf;
- this.fs = fs;
- this.tableName = tableName;
- this.column = column;
- this.pool = pool;
- mobTableDir = FSUtils.getTableDir(MobUtils.getMobHome(conf), tableName);
- mobFamilyDir = MobUtils.getMobFamilyPath(conf, tableName, column.getNameAsString());
- }
-
- /**
- * Compacts the mob files for the current column family.
- * @return The paths of new mob files generated in the compaction.
- * @throws IOException
- */
- public List<Path> compact() throws IOException {
- return compact(false);
- }
-
- /**
- * Compacts the mob files by compaction type for the current column family.
- * @param isForceAllFiles Whether add all mob files into the compaction.
- * @return The paths of new mob files generated in the compaction.
- * @throws IOException
- */
- public List<Path> compact(boolean isForceAllFiles) throws IOException {
- return compact(Arrays.asList(fs.listStatus(mobFamilyDir)), isForceAllFiles);
- }
-
- /**
- * Compacts the candidate mob files.
- * @param files The candidate mob files.
- * @param isForceAllFiles Whether add all mob files into the compaction.
- * @return The paths of new mob files generated in the compaction.
- * @throws IOException
- */
- public abstract List<Path> compact(List<FileStatus> files, boolean isForceAllFiles)
- throws IOException;
-}
http://git-wip-us.apache.org/repos/asf/hbase/blob/b31a6acf/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/PartitionedMobFileCompactionRequest.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/PartitionedMobFileCompactionRequest.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/PartitionedMobFileCompactionRequest.java
deleted file mode 100644
index d2ac1db..0000000
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/filecompactions/PartitionedMobFileCompactionRequest.java
+++ /dev/null
@@ -1,146 +0,0 @@
-/**
- *
- * 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.hadoop.hbase.mob.filecompactions;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-
-import org.apache.hadoop.classification.InterfaceAudience;
-import org.apache.hadoop.fs.FileStatus;
-import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
-
-/**
- * An implementation of {@link MobFileCompactionRequest} that is used in
- * {@link PartitionedMobFileCompactor}.
- * The mob files that have the same start key and date in their names belong to
- * the same partition.
- */
-@InterfaceAudience.Private
-public class PartitionedMobFileCompactionRequest extends MobFileCompactionRequest {
-
- protected Collection<FileStatus> delFiles;
- protected Collection<CompactionPartition> compactionPartitions;
-
- public PartitionedMobFileCompactionRequest(Collection<CompactionPartition> compactionPartitions,
- Collection<FileStatus> delFiles) {
- this.selectionTime = EnvironmentEdgeManager.currentTime();
- this.compactionPartitions = compactionPartitions;
- this.delFiles = delFiles;
- }
-
- /**
- * Gets the compaction partitions.
- * @return The compaction partitions.
- */
- public Collection<CompactionPartition> getCompactionPartitions() {
- return this.compactionPartitions;
- }
-
- /**
- * Gets the del files.
- * @return The del files.
- */
- public Collection<FileStatus> getDelFiles() {
- return this.delFiles;
- }
-
- /**
- * The partition in the mob file compaction.
- * The mob files that have the same start key and date in their names belong to
- * the same partition.
- */
- protected static class CompactionPartition {
- private List<FileStatus> files = new ArrayList<FileStatus>();
- private CompactionPartitionId partitionId;
-
- public CompactionPartition(CompactionPartitionId partitionId) {
- this.partitionId = partitionId;
- }
-
- public CompactionPartitionId getPartitionId() {
- return this.partitionId;
- }
-
- public void addFile(FileStatus file) {
- files.add(file);
- }
-
- public List<FileStatus> listFiles() {
- return Collections.unmodifiableList(files);
- }
- }
-
- /**
- * The partition id that consists of start key and date of the mob file name.
- */
- protected static class CompactionPartitionId {
-
- private String startKey;
- private String date;
-
- public CompactionPartitionId(String startKey, String date) {
- if (startKey == null || date == null) {
- throw new IllegalArgumentException("Neither of start key and date could be null");
- }
- this.startKey = startKey;
- this.date = date;
- }
-
- public String getStartKey() {
- return this.startKey;
- }
-
- public String getDate() {
- return this.date;
- }
-
- @Override
- public int hashCode() {
- int result = 17;
- result = 31 * result + startKey.hashCode();
- result = 31 * result + date.hashCode();
- return result;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (!(obj instanceof CompactionPartitionId)) {
- return false;
- }
- CompactionPartitionId another = (CompactionPartitionId) obj;
- if (!this.startKey.equals(another.startKey)) {
- return false;
- }
- if (!this.date.equals(another.date)) {
- return false;
- }
- return true;
- }
-
- @Override
- public String toString() {
- return new StringBuilder(startKey).append(date).toString();
- }
- }
-}