HBASE-22632 SplitTableRegionProcedure and MergeTableRegionsProcedure should skip store files for unknown column families (#344)

Signed-off-by: Guanghao Zhang <zghao@apache.org>

hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.java

@@ -639,15 +639,14 @@ public class MergeTableRegionsProcedure
    * @param regionFs region file system
    * @param mergedDir the temp directory of merged region
    */
-  private void mergeStoreFiles(
+  private void mergeStoreFiles(final MasterProcedureEnv env, final HRegionFileSystem regionFs,
-      final MasterProcedureEnv env, final HRegionFileSystem regionFs, final Path mergedDir)
+      final Path mergedDir) throws IOException {
-      throws IOException {
     final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();
     final Configuration conf = env.getMasterConfiguration();
     final TableDescriptor htd = env.getMasterServices().getTableDescriptors().get(getTableName());
 
-    for (String family : regionFs.getFamilies()) {
+    for (ColumnFamilyDescriptor hcd : htd.getColumnFamilies()) {
-      final ColumnFamilyDescriptor hcd = htd.getColumnFamily(Bytes.toBytes(family));
+      String family = hcd.getNameAsString();
       final Collection<StoreFileInfo> storeFiles = regionFs.getStoreFiles(family);
 
       if (storeFiles != null && storeFiles.size() > 0) {
@@ -655,9 +654,9 @@ public class MergeTableRegionsProcedure
           // Create reference file(s) of the region in mergedDir.
           // As this procedure is running on master, use CacheConfig.DISABLED means
           // don't cache any block.
-          regionFs.mergeStoreFile(mergedRegion, family,
+          regionFs.mergeStoreFile(mergedRegion, family, new HStoreFile(mfs.getFileSystem(),
-              new HStoreFile(mfs.getFileSystem(), storeFileInfo, conf, CacheConfig.DISABLED,
+              storeFileInfo, conf, CacheConfig.DISABLED, hcd.getBloomFilterType(), true),
-                  hcd.getBloomFilterType(), true), mergedDir);
+            mergedDir);
         }
       }
     }

hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.java

@@ -626,6 +626,7 @@ public class SplitTableRegionProcedure
       final HRegionFileSystem regionFs) throws IOException {
     final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();
     final Configuration conf = env.getMasterConfiguration();
+    TableDescriptor htd = env.getMasterServices().getTableDescriptors().get(getTableName());
     // The following code sets up a thread pool executor with as many slots as
     // there's files to split. It then fires up everything, waits for
     // completion and finally checks for any exception
@@ -635,12 +636,15 @@ public class SplitTableRegionProcedure
     // clean this up.
     int nbFiles = 0;
     final Map<String, Collection<StoreFileInfo>> files =
-      new HashMap<String, Collection<StoreFileInfo>>(regionFs.getFamilies().size());
+        new HashMap<String, Collection<StoreFileInfo>>(htd.getColumnFamilyCount());
-    for (String family: regionFs.getFamilies()) {
+    for (ColumnFamilyDescriptor cfd : htd.getColumnFamilies()) {
+      String family = cfd.getNameAsString();
       Collection<StoreFileInfo> sfis = regionFs.getStoreFiles(family);
-      if (sfis == null) continue;
+      if (sfis == null) {
+        continue;
+      }
       Collection<StoreFileInfo> filteredSfis = null;
-      for (StoreFileInfo sfi: sfis) {
+      for (StoreFileInfo sfi : sfis) {
         // Filter. There is a lag cleaning up compacted reference files. They get cleared
         // after a delay in case outstanding Scanners still have references. Because of this,
         // the listing of the Store content may have straggler reference files. Skip these.
@@ -661,7 +665,7 @@ public class SplitTableRegionProcedure
     }
     if (nbFiles == 0) {
       // no file needs to be splitted.
-      return new Pair<Integer, Integer>(0,0);
+      return new Pair<Integer, Integer>(0, 0);
     }
     // Max #threads is the smaller of the number of storefiles or the default max determined above.
     int maxThreads = Math.min(
@@ -669,12 +673,11 @@ public class SplitTableRegionProcedure
         conf.getInt(HStore.BLOCKING_STOREFILES_KEY, HStore.DEFAULT_BLOCKING_STOREFILE_COUNT)),
       nbFiles);
     LOG.info("pid=" + getProcId() + " splitting " + nbFiles + " storefiles, region=" +
-      getParentRegion().getShortNameToLog() + ", threads=" + maxThreads);
+        getParentRegion().getShortNameToLog() + ", threads=" + maxThreads);
-    final ExecutorService threadPool = Executors.newFixedThreadPool(
+    final ExecutorService threadPool = Executors.newFixedThreadPool(maxThreads,
-      maxThreads, Threads.getNamedThreadFactory("StoreFileSplitter-%1$d"));
+      Threads.getNamedThreadFactory("StoreFileSplitter-%1$d"));
-    final List<Future<Pair<Path,Path>>> futures = new ArrayList<Future<Pair<Path,Path>>>(nbFiles);
+    final List<Future<Pair<Path, Path>>> futures = new ArrayList<Future<Pair<Path, Path>>>(nbFiles);
 
-    TableDescriptor htd = env.getMasterServices().getTableDescriptors().get(getTableName());
     // Split each store file.
     for (Map.Entry<String, Collection<StoreFileInfo>> e : files.entrySet()) {
       byte[] familyName = Bytes.toBytes(e.getKey());
@@ -684,9 +687,9 @@ public class SplitTableRegionProcedure
         for (StoreFileInfo storeFileInfo : storeFiles) {
           // As this procedure is running on master, use CacheConfig.DISABLED means
           // don't cache any block.
-          StoreFileSplitter sfs = new StoreFileSplitter(regionFs, familyName,
+          StoreFileSplitter sfs =
-              new HStoreFile(mfs.getFileSystem(), storeFileInfo, conf, CacheConfig.DISABLED,
+              new StoreFileSplitter(regionFs, familyName, new HStoreFile(mfs.getFileSystem(),
-                  hcd.getBloomFilterType(), true));
+                  storeFileInfo, conf, CacheConfig.DISABLED, hcd.getBloomFilterType(), true));
           futures.add(threadPool.submit(sfs));
         }
       }
@@ -698,7 +701,7 @@ public class SplitTableRegionProcedure
     // When splits ran on the RegionServer, how-long-to-wait-configuration was named
     // hbase.regionserver.fileSplitTimeout. If set, use its value.
     long fileSplitTimeout = conf.getLong("hbase.master.fileSplitTimeout",
-        conf.getLong("hbase.regionserver.fileSplitTimeout", 600000));
+      conf.getLong("hbase.regionserver.fileSplitTimeout", 600000));
     try {
       boolean stillRunning = !threadPool.awaitTermination(fileSplitTimeout, TimeUnit.MILLISECONDS);
       if (stillRunning) {
@@ -707,11 +710,11 @@ public class SplitTableRegionProcedure
         while (!threadPool.isTerminated()) {
           Thread.sleep(50);
         }
-        throw new IOException("Took too long to split the" +
+        throw new IOException(
-            " files and create the references, aborting split");
+            "Took too long to split the" + " files and create the references, aborting split");
       }
     } catch (InterruptedException e) {
-      throw (InterruptedIOException)new InterruptedIOException().initCause(e);
+      throw (InterruptedIOException) new InterruptedIOException().initCause(e);
     }
 
     int daughterA = 0;
@@ -731,9 +734,8 @@ public class SplitTableRegionProcedure
 
     if (LOG.isDebugEnabled()) {
       LOG.debug("pid=" + getProcId() + " split storefiles for region " +
-        getParentRegion().getShortNameToLog() +
+          getParentRegion().getShortNameToLog() + " Daughter A: " + daughterA +
-          " Daughter A: " + daughterA + " storefiles, Daughter B: " +
+          " storefiles, Daughter B: " + daughterB + " storefiles.");
-          daughterB + " storefiles.");
     }
     return new Pair<Integer, Integer>(daughterA, daughterB);
   }

hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestIgnoreUnknownFamily.java

@@ -0,0 +1,117 @@
+/**
+ * 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.master.procedure;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Admin;
+import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
+import org.apache.hadoop.hbase.client.RegionInfo;
+import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
+import org.apache.hadoop.hbase.io.hfile.HFileContext;
+import org.apache.hadoop.hbase.master.MasterFileSystem;
+import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.FSUtils;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.junit.rules.TestName;
+
+/**
+ * Testcase for HBASE-22632
+ */
+@Category({ MasterTests.class, MediumTests.class })
+public class TestIgnoreUnknownFamily {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestIgnoreUnknownFamily.class);
+
+  private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
+
+  private static final byte[] FAMILY = Bytes.toBytes("cf");
+
+  private static final byte[] UNKNOWN_FAMILY = Bytes.toBytes("wrong_cf");
+
+  @Rule
+  public TestName name = new TestName();
+
+  @BeforeClass
+  public static void setUp() throws Exception {
+    UTIL.startMiniCluster(1);
+  }
+
+  @AfterClass
+  public static void tearDown() throws Exception {
+    UTIL.shutdownMiniCluster();
+  }
+
+  @After
+  public void tearDownAfterTest() throws IOException {
+    Admin admin = UTIL.getAdmin();
+    for (TableName tableName : admin.listTableNames()) {
+      admin.disableTable(tableName);
+      admin.deleteTable(tableName);
+    }
+  }
+
+  private void addStoreFileToKnownFamily(RegionInfo region) throws IOException {
+    MasterFileSystem mfs = UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
+    Path regionDir =
+        FSUtils.getRegionDirFromRootDir(FSUtils.getRootDir(mfs.getConfiguration()), region);
+    Path familyDir = new Path(regionDir, Bytes.toString(UNKNOWN_FAMILY));
+    StoreFileWriter writer =
+        new StoreFileWriter.Builder(mfs.getConfiguration(), mfs.getFileSystem())
+            .withOutputDir(familyDir).withFileContext(new HFileContext()).build();
+    writer.close();
+  }
+
+  @Test
+  public void testSplit()
+      throws IOException, InterruptedException, ExecutionException, TimeoutException {
+    TableName tableName = TableName.valueOf(name.getMethodName());
+    Admin admin = UTIL.getAdmin();
+    admin.createTable(TableDescriptorBuilder.newBuilder(tableName)
+        .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)).build());
+    RegionInfo region = admin.getRegions(tableName).get(0);
+    addStoreFileToKnownFamily(region);
+    admin.splitRegionAsync(region.getRegionName(), Bytes.toBytes(0)).get(30, TimeUnit.SECONDS);
+  }
+
+  @Test
+  public void testMerge()
+      throws IOException, InterruptedException, ExecutionException, TimeoutException {
+    TableName tableName = TableName.valueOf(name.getMethodName());
+    Admin admin = UTIL.getAdmin();
+    admin.createTable(
+      TableDescriptorBuilder.newBuilder(tableName)
+          .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)).build(),
+      new byte[][] { Bytes.toBytes(0) });
+    List<RegionInfo> regions = admin.getRegions(tableName);
+    addStoreFileToKnownFamily(regions.get(0));
+    admin.mergeRegionsAsync(regions.get(0).getEncodedNameAsBytes(),
+      regions.get(1).getEncodedNameAsBytes(), false).get(30, TimeUnit.SECONDS);
+  }
+}