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Posted to commits@hbase.apache.org by ap...@apache.org on 2019/01/22 02:46:34 UTC
[hbase] branch branch-1 updated: HBASE-21561 Backport HBASE-21413
(Empty meta log doesn't get split when restart whole cluster) to branch-1
This is an automated email from the ASF dual-hosted git repository.
apurtell pushed a commit to branch branch-1
in repository https://gitbox.apache.org/repos/asf/hbase.git
The following commit(s) were added to refs/heads/branch-1 by this push:
new acdd23e HBASE-21561 Backport HBASE-21413 (Empty meta log doesn't get split when restart whole cluster) to branch-1
acdd23e is described below
commit acdd23ec4cf1621ca3b0e8d6a59af9502acd7ace
Author: xcang <xc...@salesforce.com>
AuthorDate: Mon Jan 21 17:40:59 2019 -0800
HBASE-21561 Backport HBASE-21413 (Empty meta log doesn't get split when restart whole cluster) to branch-1
Signed-off-by: Andrew Purtell <ap...@apache.org>
---
.../hadoop/hbase/master/MasterFileSystem.java | 39 ++++++++++
.../master/procedure/ServerCrashProcedure.java | 3 +
.../hadoop/hbase/wal/DefaultWALProvider.java | 9 +++
.../hbase/regionserver/TestCleanupMetaWAL.java | 90 ++++++++++++++++++++++
4 files changed, 141 insertions(+)
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
index c1bd930..28e5801 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
@@ -652,4 +652,43 @@ public class MasterFileSystem {
public void logFileSystemState(Log log) throws IOException {
FSUtils.logFileSystemState(fs, rootdir, log);
}
+
+ /**
+ * For meta region open and closed normally on a server, it may leave some meta
+ * WAL in the server's wal dir. Since meta region is no long on this server,
+ * The SCP won't split those meta wals, just leaving them there. So deleting
+ * the wal dir will fail since the dir is not empty. Actually We can safely achive those
+ * meta log and Archiving the meta log and delete the dir.
+ * @param serverName the server to archive meta log
+ */
+ public void archiveMetaLog(final ServerName serverName) {
+ try {
+ Path logDir = new Path(this.rootdir,
+ DefaultWALProvider.getWALDirectoryName(serverName.toString()));
+ Path splitDir = logDir.suffix(DefaultWALProvider.SPLITTING_EXT);
+ if (fs.exists(splitDir)) {
+ FileStatus[] logfiles = FSUtils.listStatus(fs, splitDir, META_FILTER);
+ if (logfiles != null) {
+ for (FileStatus status : logfiles) {
+ if (!status.isDir()) {
+ Path newPath = DefaultWALProvider.getWALArchivePath(this.oldLogDir,
+ status.getPath());
+ if (!FSUtils.renameAndSetModifyTime(fs, status.getPath(), newPath)) {
+ LOG.warn("Unable to move " + status.getPath() + " to " + newPath);
+ } else {
+ LOG.debug("Archived meta log " + status.getPath() + " to " + newPath);
+ }
+ }
+ }
+ }
+ if (!fs.delete(splitDir, false)) {
+ LOG.warn("Unable to delete log dir. Ignoring. " + splitDir);
+ }
+ }
+ } catch (IOException ie) {
+ LOG.warn("Failed archiving meta log for server " + serverName, ie);
+ }
+ }
+
+
}
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ServerCrashProcedure.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ServerCrashProcedure.java
index 1fbc428..b6e7a7c 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ServerCrashProcedure.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ServerCrashProcedure.java
@@ -438,6 +438,9 @@ implements ServerProcedureInterface {
AssignmentManager am = env.getMasterServices().getAssignmentManager();
// TODO: For Matteo. Below BLOCKs!!!! Redo so can relinquish executor while it is running.
mfs.splitLog(this.serverName);
+ if (!carryingMeta) {
+ mfs.archiveMetaLog(this.serverName);
+ }
am.getRegionStates().logSplit(this.serverName);
}
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DefaultWALProvider.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DefaultWALProvider.java
index af5893d..505f8b0 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DefaultWALProvider.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DefaultWALProvider.java
@@ -407,4 +407,13 @@ public class DefaultWALProvider implements WALProvider {
return name.substring(0, endIndex);
}
+ /*
+ * only public so WALSplitter can use.
+ * @return archived location of a WAL file with the given path p
+ */
+ public static Path getWALArchivePath(Path archiveDir, Path p) {
+ return new Path(archiveDir, p.getName());
+ }
+
+
}
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCleanupMetaWAL.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCleanupMetaWAL.java
new file mode 100644
index 0000000..f3d56f5
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCleanupMetaWAL.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.regionserver;
+
+import java.util.List;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.ProcedureInfo;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.master.MasterFileSystem;
+import org.apache.hadoop.hbase.protobuf.generated.ProcedureProtos;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.FSUtils;
+import org.apache.hadoop.hbase.wal.DefaultWALProvider;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static org.junit.Assert.fail;
+
+@Category(MediumTests.class)
+public class TestCleanupMetaWAL {
+ private static final Logger LOG = LoggerFactory.getLogger(TestCleanupMetaWAL.class);
+
+ private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
+
+ @BeforeClass
+ public static void before() throws Exception {
+ TEST_UTIL.startMiniCluster(2);
+ }
+
+ @AfterClass
+ public static void after() throws Exception {
+ TEST_UTIL.shutdownMiniZKCluster();
+ }
+
+ @Test
+ public void testCleanupMetaWAL() throws Exception {
+ TEST_UTIL.createTable(TableName.valueOf("test"), "cf");
+ HRegionServer serverWithMeta = TEST_UTIL.getMiniHBaseCluster()
+ .getRegionServer(TEST_UTIL.getMiniHBaseCluster().getServerWithMeta());
+ TEST_UTIL.getHBaseAdmin()
+ .move(HRegionInfo.FIRST_META_REGIONINFO.getEncodedNameAsBytes(), null);
+ TEST_UTIL.getMiniHBaseCluster().killRegionServer(serverWithMeta.getServerName());
+ int count = 0;
+ boolean scpFinished = false;
+ while(count < 25 && !scpFinished) {
+ List<ProcedureInfo> procs = TEST_UTIL.getMiniHBaseCluster().getMaster().listProcedures();
+ for(ProcedureInfo pi : procs) {
+ if(pi.getProcName().startsWith("ServerCrashProcedure") && pi.getProcState() ==
+ ProcedureProtos.ProcedureState.FINISHED){
+ LOG.info("SCP is finished: " + pi.getProcName());
+ scpFinished = true;
+ break;
+ }
+ }
+ Thread.sleep(1000);
+ count++;
+ }
+
+ MasterFileSystem fs = TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
+ Path walPath = new Path(fs.getWALRootDir(), HConstants.HREGION_LOGDIR_NAME);
+ for (FileStatus status : FSUtils.listStatus(fs.getFileSystem(), walPath)) {
+ if (status.getPath().toString().contains(DefaultWALProvider.SPLITTING_EXT)) {
+ fail("Should not have splitting wal dir here:" + status);
+ }
+ }
+ }
+}
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