You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by an...@apache.org on 2021/07/22 03:06:32 UTC
[hbase] branch branch-2.4 updated: HBASE-24984 WAL corruption due
to early DBBs re-use when Durability.ASYNC_WAL is used with multi operation
(#3512)
This is an automated email from the ASF dual-hosted git repository.
anoopsamjohn pushed a commit to branch branch-2.4
in repository https://gitbox.apache.org/repos/asf/hbase.git
The following commit(s) were added to refs/heads/branch-2.4 by this push:
new a72c62b HBASE-24984 WAL corruption due to early DBBs re-use when Durability.ASYNC_WAL is used with multi operation (#3512)
a72c62b is described below
commit a72c62b022535e26ed9a1578795b587a1ee0d782
Author: gkanade <ga...@gmail.com>
AuthorDate: Wed Jul 21 20:00:25 2021 -0700
HBASE-24984 WAL corruption due to early DBBs re-use when Durability.ASYNC_WAL is used with multi operation (#3512)
Signed-off-by: Anoop <an...@apache.org>
Signed-off-by: zhangduo <zh...@apache.org>
Signed-off-by: Andrew Purtell <ap...@apache.org>
Signed-off-by: Huaxiang Sun <hu...@apache.org>
---
.../org/apache/hadoop/hbase/ipc/ServerCall.java | 41 ++++---
...ruptionWithMultiPutDueToDanglingByteBuffer.java | 121 +++++++++++++++++++++
...ithMultiPutDueToDanglingByteBufferTestBase.java | 104 ++++++++++++++++++
3 files changed, 245 insertions(+), 21 deletions(-)
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/ServerCall.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/ServerCall.java
index b53c770..9a4c11a 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/ServerCall.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/ServerCall.java
@@ -93,11 +93,13 @@ public abstract class ServerCall<T extends ServerRpcConnection> implements RpcCa
private long exceptionSize = 0;
private final boolean retryImmediatelySupported;
- // This is a dirty hack to address HBASE-22539. The lowest bit is for normal rpc cleanup, and the
- // second bit is for WAL reference. We can only call release if both of them are zero. The reason
- // why we can not use a general reference counting is that, we may call cleanup multiple times in
- // the current implementation. We should fix this in the future.
- private final AtomicInteger reference = new AtomicInteger(0b01);
+ // This is a dirty hack to address HBASE-22539. The highest bit is for rpc ref and cleanup, and
+ // the rest of the bits are for WAL reference count. We can only call release if all of them are
+ // zero. The reason why we can not use a general reference counting is that, we may call cleanup
+ // multiple times in the current implementation. We should fix this in the future.
+ // The refCount here will start as 0x80000000 and increment with every WAL reference and decrement
+ // from WAL side on release
+ private final AtomicInteger reference = new AtomicInteger(0x80000000);
@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "NP_NULL_ON_SOME_PATH",
justification = "Can't figure why this complaint is happening... see below")
@@ -149,13 +151,14 @@ public abstract class ServerCall<T extends ServerRpcConnection> implements RpcCa
cleanup();
}
- private void release(int mask) {
+ @Override
+ public void cleanup() {
for (;;) {
int ref = reference.get();
- if ((ref & mask) == 0) {
+ if ((ref & 0x80000000) == 0) {
return;
}
- int nextRef = ref & (~mask);
+ int nextRef = ref & 0x7fffffff;
if (reference.compareAndSet(ref, nextRef)) {
if (nextRef == 0) {
if (this.reqCleanup != null) {
@@ -167,23 +170,19 @@ public abstract class ServerCall<T extends ServerRpcConnection> implements RpcCa
}
}
- @Override
- public void cleanup() {
- release(0b01);
- }
-
public void retainByWAL() {
- for (;;) {
- int ref = reference.get();
- int nextRef = ref | 0b10;
- if (reference.compareAndSet(ref, nextRef)) {
- return;
- }
- }
+ reference.incrementAndGet();
}
public void releaseByWAL() {
- release(0b10);
+ // Here this method of decrementAndGet for releasing WAL reference count will work in both
+ // cases - i.e. highest bit (cleanup) 1 or 0. We will be decrementing a negative or positive
+ // value respectively in these 2 cases, but the logic will work the same way
+ if (reference.decrementAndGet() == 0) {
+ if (this.reqCleanup != null) {
+ this.reqCleanup.run();
+ }
+ }
}
@Override
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestFSHLogCorruptionWithMultiPutDueToDanglingByteBuffer.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestFSHLogCorruptionWithMultiPutDueToDanglingByteBuffer.java
new file mode 100644
index 0000000..407d5a2
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestFSHLogCorruptionWithMultiPutDueToDanglingByteBuffer.java
@@ -0,0 +1,121 @@
+/**
+ * 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.wal;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.io.ByteBuffAllocator;
+import org.apache.hadoop.hbase.ipc.RpcServerFactory;
+import org.apache.hadoop.hbase.ipc.SimpleRpcServer;
+import org.apache.hadoop.hbase.regionserver.HRegion;
+import org.apache.hadoop.hbase.regionserver.wal.FSHLog;
+import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.testclassification.RegionServerTests;
+import org.apache.hadoop.hbase.util.CommonFSUtils;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.experimental.categories.Category;
+
+@Category({ RegionServerTests.class, MediumTests.class })
+public class TestFSHLogCorruptionWithMultiPutDueToDanglingByteBuffer
+ extends WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase {
+
+ @ClassRule
+ public static final HBaseClassTestRule CLASS_RULE = HBaseClassTestRule
+ .forClass(TestFSHLogCorruptionWithMultiPutDueToDanglingByteBuffer.class);
+
+ public static final class PauseWAL extends FSHLog {
+
+ private int testTableWalAppendsCount = 0;
+
+ public PauseWAL(FileSystem fs, Path rootDir, String logDir, String archiveDir,
+ Configuration conf, List<WALActionsListener> listeners, boolean failIfWALExists,
+ String prefix, String suffix) throws IOException {
+ super(fs, rootDir, logDir, archiveDir, conf, listeners, failIfWALExists, prefix, suffix);
+ }
+
+ @Override
+ protected void atHeadOfRingBufferEventHandlerAppend() {
+ // Let the 1st Append go through. The write thread will wait for this to go through before
+ // calling further put()
+ if (ARRIVE != null) { // Means appends as part of puts in testcase
+ // Sleep for a second so that RS handler thread put all the mini batch WAL appends to ring
+ // buffer.
+ if (testTableWalAppendsCount == 0) {
+ try {
+ Thread.sleep(1000);
+ } catch (InterruptedException e) {
+ }
+ }
+ // Let the first minibatch write go through. When 2nd one comes, notify the waiting test
+ // case for doing further batch puts and make this WAL append thread to pause
+ if (testTableWalAppendsCount == 1) {
+ ARRIVE.countDown();
+ try {
+ RESUME.await();
+ } catch (InterruptedException e) {
+ }
+ }
+ testTableWalAppendsCount++;
+ }
+ }
+ }
+
+ public static final class PauseWALProvider extends AbstractFSWALProvider<PauseWAL> {
+
+ @Override
+ protected PauseWAL createWAL() throws IOException {
+ return new PauseWAL(CommonFSUtils.getWALFileSystem(conf), CommonFSUtils.getWALRootDir(conf),
+ getWALDirectoryName(factory.factoryId), getWALArchiveDirectoryName(conf, factory.factoryId),
+ conf, listeners, true, logPrefix,
+ META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null);
+ }
+
+ @Override
+ protected void doInit(Configuration conf) throws IOException {
+ }
+ }
+
+ @BeforeClass
+ public static void setUp() throws Exception {
+ UTIL.getConfiguration().setClass(WALFactory.WAL_PROVIDER, PauseWALProvider.class,
+ WALProvider.class);
+ UTIL.getConfiguration().setInt(HRegion.HBASE_REGIONSERVER_MINIBATCH_SIZE, 1);
+ UTIL.getConfiguration().set(RpcServerFactory.CUSTOM_RPC_SERVER_IMPL_CONF_KEY,
+ SimpleRpcServer.class.getName());
+ UTIL.getConfiguration().setInt(ByteBuffAllocator.MAX_BUFFER_COUNT_KEY, 1);
+ UTIL.getConfiguration().setInt(ByteBuffAllocator.BUFFER_SIZE_KEY, 1024);
+ UTIL.getConfiguration().setInt(ByteBuffAllocator.MIN_ALLOCATE_SIZE_KEY, 500);
+ UTIL.startMiniCluster(1);
+ UTIL.createTable(TABLE_NAME, CF);
+ UTIL.waitTableAvailable(TABLE_NAME);
+ }
+
+ @AfterClass
+ public static void tearDown() throws Exception {
+ UTIL.shutdownMiniCluster();
+ }
+}
+
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase.java
new file mode 100644
index 0000000..50da7a5
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/wal/WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase.java
@@ -0,0 +1,104 @@
+/**
+ * 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.wal;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Durability;
+import org.apache.hadoop.hbase.client.Get;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.Table;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase {
+
+ private static final Logger LOG = LoggerFactory
+ .getLogger(WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase.class);
+
+ protected static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
+
+ protected static CountDownLatch ARRIVE;
+
+ protected static CountDownLatch RESUME;
+
+ protected static TableName TABLE_NAME = TableName
+ .valueOf("WALCorruptionWithMultiPutDueToDanglingByteBufferTestBase");
+
+ protected static byte[] CF = Bytes.toBytes("cf");
+
+ protected static byte[] CQ = Bytes.toBytes("cq");
+
+ private byte[] getBytes(String prefix, int index) {
+ return Bytes.toBytes(String.format("%s-%08d", prefix, index));
+ }
+
+ @Test
+ public void test() throws Exception {
+ LOG.info("Stop WAL appending...");
+ ARRIVE = new CountDownLatch(1);
+ RESUME = new CountDownLatch(1);
+ try (Table table = UTIL.getConnection().getTable(TABLE_NAME)) {
+ LOG.info("Put totally 100 rows in batches of 5 with " + Durability.ASYNC_WAL + "...");
+ int batchSize = 5;
+ List<Put> puts = new ArrayList<>(batchSize);
+ for (int i = 1; i <= 100; i++) {
+ Put p = new Put(getBytes("row", i)).addColumn(CF, CQ, getBytes("value", i))
+ .setDurability(Durability.ASYNC_WAL);
+ puts.add(p);
+ if (i % batchSize == 0) {
+ table.put(puts);
+ LOG.info("Wrote batch of {} rows from row {}", batchSize,
+ Bytes.toString(puts.get(0).getRow()));
+ puts.clear();
+ // Wait for few of the minibatches in 1st batch of puts to go through the WAL write.
+ // The WAL write will pause then
+ if (ARRIVE != null) {
+ ARRIVE.await();
+ ARRIVE = null;
+ }
+ }
+ }
+ LOG.info("Resume WAL appending...");
+ RESUME.countDown();
+ LOG.info("Put a single row to force a WAL sync...");
+ table.put(new Put(Bytes.toBytes("row")).addColumn(CF, CQ, Bytes.toBytes("value")));
+ LOG.info("Abort the only region server");
+ UTIL.getMiniHBaseCluster().abortRegionServer(0);
+ LOG.info("Start a new region server");
+ UTIL.getMiniHBaseCluster().startRegionServerAndWait(30000);
+ UTIL.waitTableAvailable(TABLE_NAME);
+ LOG.info("Check if all rows are still valid");
+ for (int i = 1; i <= 100; i++) {
+ Result result = table.get(new Get(getBytes("row", i)));
+ assertEquals(Bytes.toString(getBytes("value", i)), Bytes.toString(result.getValue(CF, CQ)));
+ }
+ Result result = table.get(new Get(Bytes.toBytes("row")));
+ assertEquals("value", Bytes.toString(result.getValue(CF, CQ)));
+ }
+ }
+}