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Posted to commits@hbase.apache.org by bi...@apache.org on 2019/11/08 01:35:06 UTC
[hbase] branch master updated: HBASE-22480 Get block from
BlockCache once and return this block to BlockCache twice make ref count
error.
This is an automated email from the ASF dual-hosted git repository.
binlijin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/hbase.git
The following commit(s) were added to refs/heads/master by this push:
new 02f2643 HBASE-22480 Get block from BlockCache once and return this block to BlockCache twice make ref count error.
02f2643 is described below
commit 02f264321b72530b84e7d75707d3a23d502a23c3
Author: lijinbin <li...@tencent.com>
AuthorDate: Fri Nov 8 09:34:58 2019 +0800
HBASE-22480 Get block from BlockCache once and return this block to BlockCache twice make ref count error.
---
.../hadoop/hbase/io/hfile/HFileReaderImpl.java | 19 ++-
.../hadoop/hbase/io/hfile/TestHFileReaderImpl.java | 155 +++++++++++++++++++++
2 files changed, 170 insertions(+), 4 deletions(-)
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
index 9cef9c0..c0f9920 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
@@ -1308,7 +1308,12 @@ public class HFileReaderImpl implements HFile.Reader, Configurable {
compressedBlock.release();
}
}
- validateBlockType(cachedBlock, expectedBlockType);
+ try {
+ validateBlockType(cachedBlock, expectedBlockType);
+ } catch (IOException e) {
+ returnAndEvictBlock(cache, cacheKey, cachedBlock);
+ throw e;
+ }
if (expectedDataBlockEncoding == null) {
return cachedBlock;
@@ -1341,8 +1346,7 @@ public class HFileReaderImpl implements HFile.Reader, Configurable {
+ " because of a data block encoding mismatch" + "; expected: "
+ expectedDataBlockEncoding + ", actual: " + actualDataBlockEncoding + ", path=" + path);
// This is an error scenario. so here we need to release the block.
- cachedBlock.release();
- cache.evictBlock(cacheKey);
+ returnAndEvictBlock(cache, cacheKey, cachedBlock);
}
return null;
}
@@ -1352,6 +1356,11 @@ public class HFileReaderImpl implements HFile.Reader, Configurable {
return null;
}
+ private void returnAndEvictBlock(BlockCache cache, BlockCacheKey cacheKey, Cacheable block) {
+ block.release();
+ cache.evictBlock(cacheKey);
+ }
+
/**
* @param metaBlockName
* @param cacheBlock Add block to cache, if found
@@ -1481,7 +1490,9 @@ public class HFileReaderImpl implements HFile.Reader, Configurable {
// type in the cache key, and we expect it to match on a cache hit.
if (cachedBlock.getDataBlockEncoding() != dataBlockEncoder.getDataBlockEncoding()) {
// Remember to release the block when in exceptional path.
- cachedBlock.release();
+ cacheConf.getBlockCache().ifPresent(cache -> {
+ returnAndEvictBlock(cache, cacheKey, cachedBlock);
+ });
throw new IOException("Cached block under key " + cacheKey + " "
+ "has wrong encoding: " + cachedBlock.getDataBlockEncoding() + " (expected: "
+ dataBlockEncoder.getDataBlockEncoding() + "), path=" + path);
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileReaderImpl.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileReaderImpl.java
new file mode 100644
index 0000000..513122b
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileReaderImpl.java
@@ -0,0 +1,155 @@
+/**
+ * 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.io.hfile;
+
+import static org.junit.Assert.assertEquals;
+import java.io.IOException;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.CellComparatorImpl;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.io.hfile.bucket.BucketCache;
+import org.apache.hadoop.hbase.testclassification.IOTests;
+import org.apache.hadoop.hbase.testclassification.SmallTests;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
+
+/**
+ * Test
+ */
+@Category({ IOTests.class, SmallTests.class})
+public class TestHFileReaderImpl {
+
+ @ClassRule
+ public static final HBaseClassTestRule CLASS_RULE =
+ HBaseClassTestRule.forClass(TestHFileReaderImpl.class);
+
+ private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
+
+ static KeyValue toKV(String row) {
+ return new KeyValue(Bytes.toBytes(row), Bytes.toBytes("family"), Bytes.toBytes("qualifier"),
+ Bytes.toBytes("value"));
+ }
+
+ static String toRowStr(Cell c) {
+ return Bytes.toString(c.getRowArray(), c.getRowOffset(), c.getRowLength());
+ }
+
+ Path makeNewFile() throws IOException {
+ Path ncTFile = new Path(TEST_UTIL.getDataTestDir(), "basic.hfile");
+ FSDataOutputStream fout = TEST_UTIL.getTestFileSystem().create(ncTFile);
+ int blocksize = toKV("a").getLength() * 3;
+ HFileContext context =
+ new HFileContextBuilder().withBlockSize(blocksize).withIncludesTags(true).build();
+ Configuration conf = TEST_UTIL.getConfiguration();
+ HFile.Writer writer =
+ HFile.getWriterFactoryNoCache(conf).withOutputStream(fout).withFileContext(context)
+ .withComparator(CellComparatorImpl.COMPARATOR).create();
+ // 4 bytes * 3 * 2 for each key/value +
+ // 3 for keys, 15 for values = 42 (woot)
+ writer.append(toKV("c"));
+ writer.append(toKV("e"));
+ writer.append(toKV("g"));
+ // block transition
+ writer.append(toKV("i"));
+ writer.append(toKV("k"));
+ writer.close();
+ fout.close();
+ return ncTFile;
+ }
+
+ @Test
+ public void testSeekBefore() throws Exception {
+ Path p = makeNewFile();
+ FileSystem fs = TEST_UTIL.getTestFileSystem();
+ Configuration conf = TEST_UTIL.getConfiguration();
+ int[] bucketSizes = { 512, 2048, 4096, 64 * 1024, 128 * 1024 };
+ BucketCache bucketcache =
+ new BucketCache("offheap", 128 * 1024 * 1024, 64 * 1024, bucketSizes, 5, 64 * 100, null);
+
+ HFile.Reader reader = HFile.createReader(fs, p, new CacheConfig(conf, bucketcache), true, conf);
+ reader.loadFileInfo();
+
+ // warm cache
+ HFileScanner scanner = reader.getScanner(true, true);
+ scanner.seekTo(toKV("i"));
+ assertEquals("i", toRowStr(scanner.getCell()));
+ scanner.close();
+
+ while (bucketcache.getBlockCount() <= 0) {
+ Thread.sleep(10);
+ }
+
+ // reopen again.
+ scanner = reader.getScanner(true, true);
+ scanner.seekTo(toKV("i"));
+ assertEquals("i", toRowStr(scanner.getCell()));
+ scanner.seekBefore(toKV("i"));
+ assertEquals("g", toRowStr(scanner.getCell()));
+ scanner.close();
+
+ for (CachedBlock cachedBlock : Lists.newArrayList(bucketcache)) {
+ BlockCacheKey cacheKey =
+ new BlockCacheKey(cachedBlock.getFilename(), cachedBlock.getOffset());
+ int refCount = bucketcache.getRpcRefCount(cacheKey);
+ assertEquals(0, refCount);
+ }
+
+ // case 2
+ scanner = reader.getScanner(true, true);
+ scanner.seekTo(toKV("i"));
+ assertEquals("i", toRowStr(scanner.getCell()));
+ scanner.seekBefore(toKV("c"));
+ scanner.close();
+ for (CachedBlock cachedBlock : Lists.newArrayList(bucketcache)) {
+ BlockCacheKey cacheKey =
+ new BlockCacheKey(cachedBlock.getFilename(), cachedBlock.getOffset());
+ int refCount = bucketcache.getRpcRefCount(cacheKey);
+ assertEquals(0, refCount);
+ }
+
+ reader.close();
+
+ // clear bucketcache
+ for (CachedBlock cachedBlock : Lists.newArrayList(bucketcache)) {
+ BlockCacheKey cacheKey =
+ new BlockCacheKey(cachedBlock.getFilename(), cachedBlock.getOffset());
+ bucketcache.evictBlock(cacheKey);
+ }
+ bucketcache.shutdown();
+
+ deleteTestDir(fs);
+ }
+
+ protected void deleteTestDir(FileSystem fs) throws IOException {
+ Path dataTestDir = TEST_UTIL.getDataTestDir();
+ if(fs.exists(dataTestDir)) {
+ fs.delete(dataTestDir, true);
+ }
+ }
+
+}