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Posted to commits@hbase.apache.org by te...@apache.org on 2013/01/14 22:43:32 UTC
svn commit: r1433152 - in /hbase/trunk/hbase-server/src:
main/java/org/apache/hadoop/hbase/master/
main/java/org/apache/hadoop/hbase/master/handler/
main/java/org/apache/hadoop/hbase/regionserver/
main/java/org/apache/hadoop/hbase/regionserver/handler/...
Author: tedyu
Date: Mon Jan 14 21:43:31 2013
New Revision: 1433152
URL: http://svn.apache.org/viewvc?rev=1433152&view=rev
Log:
HBASE-7213 Have HLog files for .META. and -ROOT- edits only (Devaraj Das)
Added:
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetaLogRoller.java
Modified:
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogFactory.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java
hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java
hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java
hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java Mon Jan 14 21:43:31 2013
@@ -960,6 +960,7 @@ Server {
return;
}
LOG.info("Forcing splitLog and expire of " + sn);
+ fileSystemManager.splitMetaLog(sn);
fileSystemManager.splitLog(sn);
serverManager.expireServer(sn);
}
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java Mon Jan 14 21:43:31 2013
@@ -32,6 +32,7 @@ import org.apache.hadoop.conf.Configurat
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.PathFilter;
import org.apache.hadoop.hbase.ClusterId;
import org.apache.hadoop.hbase.DeserializationException;
import org.apache.hadoop.hbase.HColumnDescriptor;
@@ -84,6 +85,18 @@ public class MasterFileSystem {
final SplitLogManager splitLogManager;
private final MasterServices services;
+ private final static PathFilter META_FILTER = new PathFilter() {
+ public boolean accept(Path p) {
+ return HLogUtil.isMetaFile(p);
+ }
+ };
+
+ private final static PathFilter NON_META_FILTER = new PathFilter() {
+ public boolean accept(Path p) {
+ return !HLogUtil.isMetaFile(p);
+ }
+ };
+
public MasterFileSystem(Server master, MasterServices services,
MetricsMaster metricsMaster, boolean masterRecovery)
throws IOException {
@@ -229,7 +242,8 @@ public class MasterFileSystem {
+ " belongs to an existing region server");
}
}
- splitLog(serverNames);
+ splitLog(serverNames, META_FILTER);
+ splitLog(serverNames, NON_META_FILTER);
retrySplitting = false;
} catch (IOException ioe) {
LOG.warn("Failed splitting of " + serverNames, ioe);
@@ -258,8 +272,30 @@ public class MasterFileSystem {
splitLog(serverNames);
}
- public void splitLog(final List<ServerName> serverNames) throws IOException {
+ /**
+ * Specialized method to handle the splitting for meta HLog
+ * @param serverName
+ * @throws IOException
+ */
+ public void splitMetaLog(final ServerName serverName) throws IOException {
long splitTime = 0, splitLogSize = 0;
+ List<ServerName> serverNames = new ArrayList<ServerName>();
+ serverNames.add(serverName);
+ List<Path> logDirs = getLogDirs(serverNames);
+ if (logDirs.isEmpty()) {
+ LOG.info("No meta logs to split");
+ return;
+ }
+ splitLogManager.handleDeadWorkers(serverNames);
+ splitTime = EnvironmentEdgeManager.currentTimeMillis();
+ splitLogSize = splitLogManager.splitLogDistributed(logDirs, META_FILTER);
+ splitTime = EnvironmentEdgeManager.currentTimeMillis() - splitTime;
+ if (this.metricsMaster != null) {
+ this.metricsMaster.addSplit(splitTime, splitLogSize);
+ }
+ }
+
+ private List<Path> getLogDirs(final List<ServerName> serverNames) throws IOException {
List<Path> logDirs = new ArrayList<Path>();
for (ServerName serverName: serverNames) {
Path logDir = new Path(this.rootdir, HLogUtil.getHLogDirectoryName(serverName.toString()));
@@ -277,6 +313,23 @@ public class MasterFileSystem {
}
logDirs.add(splitDir);
}
+ return logDirs;
+ }
+
+ public void splitLog(final List<ServerName> serverNames) throws IOException {
+ splitLog(serverNames, NON_META_FILTER);
+ }
+
+ /**
+ * This method is the base split method that splits HLog files matching a filter.
+ * Callers should pass the appropriate filter for meta and non-meta HLogs.
+ * @param serverNames
+ * @param filter
+ * @throws IOException
+ */
+ public void splitLog(final List<ServerName> serverNames, PathFilter filter) throws IOException {
+ long splitTime = 0, splitLogSize = 0;
+ List<Path> logDirs = getLogDirs(serverNames);
if (logDirs.isEmpty()) {
LOG.info("No logs to split");
@@ -286,7 +339,7 @@ public class MasterFileSystem {
if (distributedLogSplitting) {
splitLogManager.handleDeadWorkers(serverNames);
splitTime = EnvironmentEdgeManager.currentTimeMillis();
- splitLogSize = splitLogManager.splitLogDistributed(logDirs);
+ splitLogSize = splitLogManager.splitLogDistributed(logDirs,filter);
splitTime = EnvironmentEdgeManager.currentTimeMillis() - splitTime;
} else {
for(Path logDir: logDirs){
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java Mon Jan 14 21:43:31 2013
@@ -40,6 +40,7 @@ import org.apache.hadoop.conf.Configurat
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.PathFilter;
import org.apache.hadoop.hbase.Chore;
import org.apache.hadoop.hbase.SplitLogCounters;
import org.apache.hadoop.hbase.DeserializationException;
@@ -51,6 +52,7 @@ import org.apache.hadoop.hbase.monitorin
import org.apache.hadoop.hbase.monitoring.TaskMonitor;
import org.apache.hadoop.hbase.regionserver.SplitLogWorker;
import org.apache.hadoop.hbase.regionserver.wal.HLogSplitter;
+import org.apache.hadoop.hbase.regionserver.wal.HLogUtil;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.util.Threads;
@@ -194,7 +196,7 @@ public class SplitLogManager extends Zoo
}
}
- private FileStatus[] getFileList(List<Path> logDirs) throws IOException {
+ private FileStatus[] getFileList(List<Path> logDirs, PathFilter filter) throws IOException {
List<FileStatus> fileStatus = new ArrayList<FileStatus>();
for (Path hLogDir : logDirs) {
this.fs = hLogDir.getFileSystem(conf);
@@ -202,8 +204,7 @@ public class SplitLogManager extends Zoo
LOG.warn(hLogDir + " doesn't exist. Nothing to do!");
continue;
}
- // TODO filter filenames?
- FileStatus[] logfiles = FSUtils.listStatus(fs, hLogDir, null);
+ FileStatus[] logfiles = FSUtils.listStatus(fs, hLogDir, filter);
if (logfiles == null || logfiles.length == 0) {
LOG.info(hLogDir + " is empty dir, no logs to split");
} else {
@@ -228,6 +229,7 @@ public class SplitLogManager extends Zoo
logDirs.add(logDir);
return splitLogDistributed(logDirs);
}
+
/**
* The caller will block until all the log files of the given region server
* have been processed - successfully split or an error is encountered - by an
@@ -239,9 +241,25 @@ public class SplitLogManager extends Zoo
* @return cumulative size of the logfiles split
*/
public long splitLogDistributed(final List<Path> logDirs) throws IOException {
+ return splitLogDistributed(logDirs, null);
+ }
+
+ /**
+ * The caller will block until all the META log files of the given region server
+ * have been processed - successfully split or an error is encountered - by an
+ * available worker region server. This method must only be called after the
+ * region servers have been brought online.
+ *
+ * @param logDirs List of log dirs to split
+ * @param filter the Path filter to select specific files for considering
+ * @throws IOException If there was an error while splitting any log file
+ * @return cumulative size of the logfiles split
+ */
+ public long splitLogDistributed(final List<Path> logDirs, PathFilter filter)
+ throws IOException {
MonitoredTask status = TaskMonitor.get().createStatus(
"Doing distributed log split in " + logDirs);
- FileStatus[] logfiles = getFileList(logDirs);
+ FileStatus[] logfiles = getFileList(logDirs, filter);
status.setStatus("Checking directory contents...");
LOG.debug("Scheduling batch of logs to split");
SplitLogCounters.tot_mgr_log_split_batch_start.incrementAndGet();
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java Mon Jan 14 21:43:31 2013
@@ -18,11 +18,17 @@
*/
package org.apache.hadoop.hbase.master.handler;
+import java.io.IOException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.Server;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.master.DeadServer;
import org.apache.hadoop.hbase.master.MasterServices;
+import org.apache.zookeeper.KeeperException;
/**
* Shutdown handler for the server hosting <code>-ROOT-</code>,
@@ -32,7 +38,7 @@ import org.apache.hadoop.hbase.master.Ma
public class MetaServerShutdownHandler extends ServerShutdownHandler {
private final boolean carryingRoot;
private final boolean carryingMeta;
-
+ private static final Log LOG = LogFactory.getLog(MetaServerShutdownHandler.class);
public MetaServerShutdownHandler(final Server server,
final MasterServices services,
final DeadServer deadServers, final ServerName serverName,
@@ -44,11 +50,118 @@ public class MetaServerShutdownHandler e
}
@Override
+ public void process() throws IOException {
+ try {
+ LOG.info("Splitting META logs for " + serverName);
+ if (this.shouldSplitHlog) {
+ this.services.getMasterFileSystem().splitMetaLog(serverName);
+ }
+ } catch (IOException ioe) {
+ this.services.getExecutorService().submit(this);
+ this.deadServers.add(serverName);
+ throw new IOException("failed log splitting for " +
+ serverName + ", will retry", ioe);
+ }
+
+ // Assign root and meta if we were carrying them.
+ if (isCarryingRoot()) { // -ROOT-
+ // Check again: region may be assigned to other where because of RIT
+ // timeout
+ if (this.services.getAssignmentManager().isCarryingRoot(serverName)) {
+ LOG.info("Server " + serverName
+ + " was carrying ROOT. Trying to assign.");
+ this.services.getAssignmentManager().regionOffline(
+ HRegionInfo.ROOT_REGIONINFO);
+ verifyAndAssignRootWithRetries();
+ } else {
+ LOG.info("ROOT has been assigned to otherwhere, skip assigning.");
+ }
+ }
+
+ // Carrying meta?
+ if (isCarryingMeta()) {
+ // Check again: region may be assigned to other where because of RIT
+ // timeout
+ if (this.services.getAssignmentManager().isCarryingMeta(serverName)) {
+ LOG.info("Server " + serverName
+ + " was carrying META. Trying to assign.");
+ this.services.getAssignmentManager().regionOffline(
+ HRegionInfo.FIRST_META_REGIONINFO);
+ this.services.getAssignmentManager().assignMeta();
+ } else {
+ LOG.info("META has been assigned to otherwhere, skip assigning.");
+ }
+
+ }
+ super.process();
+ }
+ /**
+ * Before assign the ROOT region, ensure it haven't
+ * been assigned by other place
+ * <p>
+ * Under some scenarios, the ROOT region can be opened twice, so it seemed online
+ * in two regionserver at the same time.
+ * If the ROOT region has been assigned, so the operation can be canceled.
+ * @throws InterruptedException
+ * @throws IOException
+ * @throws KeeperException
+ */
+ private void verifyAndAssignRoot()
+ throws InterruptedException, IOException, KeeperException {
+ long timeout = this.server.getConfiguration().
+ getLong("hbase.catalog.verification.timeout", 1000);
+ if (!this.server.getCatalogTracker().verifyRootRegionLocation(timeout)) {
+ this.services.getAssignmentManager().assignRoot();
+ } else if (serverName.equals(server.getCatalogTracker().getRootLocation())) {
+ throw new IOException("-ROOT- is onlined on the dead server "
+ + serverName);
+ } else {
+ LOG.info("Skip assigning -ROOT-, because it is online on the "
+ + server.getCatalogTracker().getRootLocation());
+ }
+ }
+
+ /**
+ * Failed many times, shutdown processing
+ * @throws IOException
+ */
+ private void verifyAndAssignRootWithRetries() throws IOException {
+ int iTimes = this.server.getConfiguration().getInt(
+ "hbase.catalog.verification.retries", 10);
+
+ long waitTime = this.server.getConfiguration().getLong(
+ "hbase.catalog.verification.timeout", 1000);
+
+ int iFlag = 0;
+ while (true) {
+ try {
+ verifyAndAssignRoot();
+ break;
+ } catch (KeeperException e) {
+ this.server.abort("In server shutdown processing, assigning root", e);
+ throw new IOException("Aborting", e);
+ } catch (Exception e) {
+ if (iFlag >= iTimes) {
+ this.server.abort("verifyAndAssignRoot failed after" + iTimes
+ + " times retries, aborting", e);
+ throw new IOException("Aborting", e);
+ }
+ try {
+ Thread.sleep(waitTime);
+ } catch (InterruptedException e1) {
+ LOG.warn("Interrupted when is the thread sleep", e1);
+ Thread.currentThread().interrupt();
+ throw new IOException("Interrupted", e1);
+ }
+ iFlag++;
+ }
+ }
+ }
+
boolean isCarryingRoot() {
return this.carryingRoot;
}
- @Override
boolean isCarryingMeta() {
return this.carryingMeta;
}
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java Mon Jan 14 21:43:31 2013
@@ -55,10 +55,10 @@ import org.apache.zookeeper.KeeperExcept
@InterfaceAudience.Private
public class ServerShutdownHandler extends EventHandler {
private static final Log LOG = LogFactory.getLog(ServerShutdownHandler.class);
- private final ServerName serverName;
- private final MasterServices services;
- private final DeadServer deadServers;
- private final boolean shouldSplitHlog; // whether to split HLog or not
+ protected final ServerName serverName;
+ protected final MasterServices services;
+ protected final DeadServer deadServers;
+ protected final boolean shouldSplitHlog; // whether to split HLog or not
public ServerShutdownHandler(final Server server, final MasterServices services,
final DeadServer deadServers, final ServerName serverName,
@@ -91,69 +91,6 @@ public class ServerShutdownHandler exten
}
/**
- * Before assign the ROOT region, ensure it haven't
- * been assigned by other place
- * <p>
- * Under some scenarios, the ROOT region can be opened twice, so it seemed online
- * in two regionserver at the same time.
- * If the ROOT region has been assigned, so the operation can be canceled.
- * @throws InterruptedException
- * @throws IOException
- * @throws KeeperException
- */
- private void verifyAndAssignRoot()
- throws InterruptedException, IOException, KeeperException {
- long timeout = this.server.getConfiguration().
- getLong("hbase.catalog.verification.timeout", 1000);
- if (!this.server.getCatalogTracker().verifyRootRegionLocation(timeout)) {
- this.services.getAssignmentManager().assignRoot();
- } else if (serverName.equals(server.getCatalogTracker().getRootLocation())) {
- throw new IOException("-ROOT- is onlined on the dead server "
- + serverName);
- } else {
- LOG.info("Skip assigning -ROOT-, because it is online on the "
- + server.getCatalogTracker().getRootLocation());
- }
- }
-
- /**
- * Failed many times, shutdown processing
- * @throws IOException
- */
- private void verifyAndAssignRootWithRetries() throws IOException {
- int iTimes = this.server.getConfiguration().getInt(
- "hbase.catalog.verification.retries", 10);
-
- long waitTime = this.server.getConfiguration().getLong(
- "hbase.catalog.verification.timeout", 1000);
-
- int iFlag = 0;
- while (true) {
- try {
- verifyAndAssignRoot();
- break;
- } catch (KeeperException e) {
- this.server.abort("In server shutdown processing, assigning root", e);
- throw new IOException("Aborting", e);
- } catch (Exception e) {
- if (iFlag >= iTimes) {
- this.server.abort("verifyAndAssignRoot failed after" + iTimes
- + " times retries, aborting", e);
- throw new IOException("Aborting", e);
- }
- try {
- Thread.sleep(waitTime);
- } catch (InterruptedException e1) {
- LOG.warn("Interrupted when is the thread sleep", e1);
- Thread.currentThread().interrupt();
- throw new IOException("Interrupted", e1);
- }
- iFlag++;
- }
- }
- }
-
- /**
* @return True if the server we are processing was carrying <code>-ROOT-</code>
*/
boolean isCarryingRoot() {
@@ -188,43 +125,13 @@ public class ServerShutdownHandler exten
LOG.info("Skipping log splitting for " + serverName);
}
} catch (IOException ioe) {
- this.services.getExecutorService().submit(this);
+ //typecast to SSH so that we make sure that it is the SSH instance that
+ //gets submitted as opposed to MSSH or some other derived instance of SSH
+ this.services.getExecutorService().submit((ServerShutdownHandler)this);
this.deadServers.add(serverName);
throw new IOException("failed log splitting for " +
serverName + ", will retry", ioe);
}
-
- // Assign root and meta if we were carrying them.
- if (isCarryingRoot()) { // -ROOT-
- // Check again: region may be assigned to other where because of RIT
- // timeout
- if (this.services.getAssignmentManager().isCarryingRoot(serverName)) {
- LOG.info("Server " + serverName
- + " was carrying ROOT. Trying to assign.");
- this.services.getAssignmentManager().regionOffline(
- HRegionInfo.ROOT_REGIONINFO);
- verifyAndAssignRootWithRetries();
- } else {
- LOG.info("ROOT has been assigned to otherwhere, skip assigning.");
- }
- }
-
- // Carrying meta?
- if (isCarryingMeta()) {
- // Check again: region may be assigned to other where because of RIT
- // timeout
- if (this.services.getAssignmentManager().isCarryingMeta(serverName)) {
- LOG.info("Server " + serverName
- + " was carrying META. Trying to assign.");
- this.services.getAssignmentManager().regionOffline(
- HRegionInfo.FIRST_META_REGIONINFO);
- this.services.getAssignmentManager().assignMeta();
- } else {
- LOG.info("META has been assigned to otherwhere, skip assigning.");
- }
-
- }
-
// We don't want worker thread in the MetaServerShutdownHandler
// executor pool to block by waiting availability of -ROOT-
// and .META. server. Otherwise, it could run into the following issue:
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java Mon Jan 14 21:43:31 2013
@@ -29,6 +29,7 @@ import java.lang.reflect.Method;
import java.net.BindException;
import java.net.InetSocketAddress;
import java.util.ArrayList;
+import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
@@ -328,6 +329,7 @@ public class HRegionServer implements C
RpcServer rpcServer;
private final InetSocketAddress isa;
+ private UncaughtExceptionHandler uncaughtExceptionHandler;
// Info server. Default access so can be used by unit tests. REGIONSERVER
// is name of the webapp and the attribute name used stuffing this instance
@@ -357,7 +359,12 @@ public class HRegionServer implements C
// HLog and HLog roller. log is protected rather than private to avoid
// eclipse warning when accessed by inner classes
protected volatile HLog hlog;
+ // The meta updates are written to a different hlog. If this
+ // regionserver holds meta regions, then this field will be non-null.
+ protected volatile HLog hlogForMeta;
+
LogRoller hlogRoller;
+ LogRoller metaHLogRoller;
// flag set after we're done setting up server threads (used for testing)
protected volatile boolean isOnline;
@@ -518,6 +525,11 @@ public class HRegionServer implements C
"hbase.regionserver.kerberos.principal", this.isa.getHostName());
regionServerAccounting = new RegionServerAccounting();
cacheConfig = new CacheConfig(conf);
+ uncaughtExceptionHandler = new UncaughtExceptionHandler() {
+ public void uncaughtException(Thread t, Throwable e) {
+ abort("Uncaught exception in service thread " + t.getName(), e);
+ }
+ };
this.rsHost = new RegionServerCoprocessorHost(this, this.conf);
}
@@ -931,6 +943,7 @@ public class HRegionServer implements C
if (this.cacheFlusher != null) this.cacheFlusher.interruptIfNecessary();
if (this.compactSplitThread != null) this.compactSplitThread.interruptIfNecessary();
if (this.hlogRoller != null) this.hlogRoller.interruptIfNecessary();
+ if (this.metaHLogRoller != null) this.metaHLogRoller.interruptIfNecessary();
if (this.compactionChecker != null)
this.compactionChecker.interrupt();
if (this.healthCheckChore != null) {
@@ -1135,6 +1148,13 @@ public class HRegionServer implements C
private void closeWAL(final boolean delete) {
try {
+ if (this.hlogForMeta != null) {
+ //All hlogs (meta and non-meta) are in the same directory. Don't call
+ //closeAndDelete here since that would delete all hlogs not just the
+ //meta ones. We will just 'close' the hlog for meta here, and leave
+ //the directory cleanup to the follow-on closeAndDelete call.
+ this.hlogForMeta.close();
+ }
if (this.hlog != null) {
if (delete) {
hlog.closeAndDelete();
@@ -1405,6 +1425,21 @@ public class HRegionServer implements C
return instantiateHLog(rootDir, logName);
}
+ private HLog getMetaWAL() throws IOException {
+ if (this.hlogForMeta == null) {
+ final String logName
+ = HLogUtil.getHLogDirectoryName(this.serverNameFromMasterPOV.toString());
+
+ Path logdir = new Path(rootDir, logName);
+ if (LOG.isDebugEnabled()) LOG.debug("logdir=" + logdir);
+
+ this.hlogForMeta = HLogFactory.createMetaHLog(this.fs.getBackingFs(),
+ rootDir, logName, this.conf, getMetaWALActionListeners(),
+ this.serverNameFromMasterPOV.toString());
+ }
+ return this.hlogForMeta;
+ }
+
/**
* Called by {@link #setupWALAndReplication()} creating WAL instance.
* @param rootdir
@@ -1436,6 +1471,17 @@ public class HRegionServer implements C
return listeners;
}
+ protected List<WALActionsListener> getMetaWALActionListeners() {
+ List<WALActionsListener> listeners = new ArrayList<WALActionsListener>();
+ // Log roller.
+ this.metaHLogRoller = new MetaLogRoller(this, this);
+ String n = Thread.currentThread().getName();
+ Threads.setDaemonThreadRunning(this.metaHLogRoller.getThread(),
+ n + "MetaLogRoller", uncaughtExceptionHandler);
+ listeners.add(this.metaHLogRoller);
+ return listeners;
+ }
+
protected LogRoller getLogRoller() {
return hlogRoller;
}
@@ -1465,12 +1511,6 @@ public class HRegionServer implements C
*/
private void startServiceThreads() throws IOException {
String n = Thread.currentThread().getName();
- UncaughtExceptionHandler handler = new UncaughtExceptionHandler() {
- public void uncaughtException(Thread t, Throwable e) {
- abort("Uncaught exception in service thread " + t.getName(), e);
- }
- };
-
// Start executor services
this.service = new ExecutorService(getServerName().toString());
this.service.startExecutorService(ExecutorType.RS_OPEN_REGION,
@@ -1486,14 +1526,16 @@ public class HRegionServer implements C
this.service.startExecutorService(ExecutorType.RS_CLOSE_META,
conf.getInt("hbase.regionserver.executor.closemeta.threads", 1));
- Threads.setDaemonThreadRunning(this.hlogRoller.getThread(), n + ".logRoller", handler);
+ Threads.setDaemonThreadRunning(this.hlogRoller.getThread(), n + ".logRoller",
+ uncaughtExceptionHandler);
Threads.setDaemonThreadRunning(this.cacheFlusher.getThread(), n + ".cacheFlusher",
- handler);
+ uncaughtExceptionHandler);
Threads.setDaemonThreadRunning(this.compactionChecker.getThread(), n +
- ".compactionChecker", handler);
+ ".compactionChecker", uncaughtExceptionHandler);
if (this.healthCheckChore != null) {
Threads
- .setDaemonThreadRunning(this.healthCheckChore.getThread(), n + ".healthChecker", handler);
+ .setDaemonThreadRunning(this.healthCheckChore.getThread(), n + ".healthChecker",
+ uncaughtExceptionHandler);
}
// Leases is not a Thread. Internally it runs a daemon thread. If it gets
@@ -1574,11 +1616,32 @@ public class HRegionServer implements C
stop("One or more threads are no longer alive -- stop");
return false;
}
+ if (metaHLogRoller != null && !metaHLogRoller.isAlive()) {
+ stop("Meta HLog roller thread is no longer alive -- stop");
+ return false;
+ }
return true;
}
- @Override
public HLog getWAL() {
+ try {
+ return getWAL(null);
+ } catch (IOException e) {
+ LOG.warn("getWAL threw exception " + e);
+ return null;
+ }
+ }
+
+ @Override
+ public HLog getWAL(HRegionInfo regionInfo) throws IOException {
+ //TODO: at some point this should delegate to the HLogFactory
+ //currently, we don't care about the region as much as we care about the
+ //table.. (hence checking the tablename below)
+ //_ROOT_ and .META. regions have separate WAL.
+ if (regionInfo != null &&
+ regionInfo.isMetaTable()) {
+ return getMetaWAL();
+ }
return this.hlog;
}
@@ -1725,6 +1788,9 @@ public class HRegionServer implements C
if (this.hlogRoller != null) {
Threads.shutdown(this.hlogRoller.getThread());
}
+ if (this.metaHLogRoller != null) {
+ Threads.shutdown(this.metaHLogRoller.getThread());
+ }
if (this.compactSplitThread != null) {
this.compactSplitThread.join();
}
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/LogRoller.java Mon Jan 14 21:43:31 2013
@@ -24,6 +24,7 @@ import org.apache.hadoop.classification.
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.regionserver.wal.FailedLogCloseException;
+import org.apache.hadoop.hbase.regionserver.wal.HLog;
import org.apache.hadoop.hbase.regionserver.wal.HLogKey;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;
@@ -47,7 +48,7 @@ class LogRoller extends HasThread implem
private final ReentrantLock rollLock = new ReentrantLock();
private final AtomicBoolean rollLog = new AtomicBoolean(false);
private final Server server;
- private final RegionServerServices services;
+ protected final RegionServerServices services;
private volatile long lastrolltime = System.currentTimeMillis();
// Period to roll log.
private final long rollperiod;
@@ -92,7 +93,7 @@ class LogRoller extends HasThread implem
try {
this.lastrolltime = now;
// This is array of actual region names.
- byte [][] regionsToFlush = this.services.getWAL().rollWriter(rollLog.get());
+ byte [][] regionsToFlush = getWAL().rollWriter(rollLog.get());
if (regionsToFlush != null) {
for (byte [] r: regionsToFlush) scheduleFlush(r);
}
@@ -159,6 +160,10 @@ class LogRoller extends HasThread implem
}
}
+ protected HLog getWAL() throws IOException {
+ return this.services.getWAL(null);
+ }
+
@Override
public void preLogRoll(Path oldPath, Path newPath) throws IOException {
// Not interested
Added: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetaLogRoller.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetaLogRoller.java?rev=1433152&view=auto
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetaLogRoller.java (added)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetaLogRoller.java Mon Jan 14 21:43:31 2013
@@ -0,0 +1,38 @@
+/**
+ * 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.io.IOException;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.Server;
+import org.apache.hadoop.hbase.regionserver.wal.HLog;
+
+@InterfaceAudience.Private
+class MetaLogRoller extends LogRoller {
+ public MetaLogRoller(Server server, RegionServerServices services) {
+ super(server, services);
+ }
+ @Override
+ protected HLog getWAL() throws IOException {
+ //The argument to getWAL below could either be HRegionInfo.FIRST_META_REGIONINFO or
+ //HRegionInfo.ROOT_REGIONINFO. Both these share the same WAL.
+ return services.getWAL(HRegionInfo.FIRST_META_REGIONINFO);
+ }
+}
\ No newline at end of file
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerServices.java Mon Jan 14 21:43:31 2013
@@ -23,6 +23,7 @@ import java.util.concurrent.ConcurrentMa
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.catalog.CatalogTracker;
import org.apache.hadoop.hbase.ipc.RpcServer;
import org.apache.hadoop.hbase.regionserver.wal.HLog;
@@ -38,8 +39,9 @@ public interface RegionServerServices ex
*/
public boolean isStopping();
- /** @return the HLog */
- public HLog getWAL();
+ /** @return the HLog for a particular region. Pass null for getting the
+ * default (common) WAL */
+ public HLog getWAL(HRegionInfo regionInfo) throws IOException;
/**
* @return Implementation of {@link CompactionRequestor} or null.
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/OpenRegionHandler.java Mon Jan 14 21:43:31 2013
@@ -31,6 +31,7 @@ import org.apache.hadoop.hbase.executor.
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.RegionServerAccounting;
import org.apache.hadoop.hbase.regionserver.RegionServerServices;
+import org.apache.hadoop.hbase.regionserver.wal.HLog;
import org.apache.hadoop.hbase.util.CancelableProgressable;
import org.apache.hadoop.hbase.zookeeper.ZKAssign;
import org.apache.zookeeper.KeeperException;
@@ -44,7 +45,7 @@ import org.apache.zookeeper.KeeperExcept
public class OpenRegionHandler extends EventHandler {
private static final Log LOG = LogFactory.getLog(OpenRegionHandler.class);
- private final RegionServerServices rsServices;
+ protected final RegionServerServices rsServices;
private final HRegionInfo regionInfo;
private final HTableDescriptor htd;
@@ -424,7 +425,8 @@ public class OpenRegionHandler extends E
// Instantiate the region. This also periodically tickles our zk OPENING
// state so master doesn't timeout this region in transition.
region = HRegion.openHRegion(this.regionInfo, this.htd,
- this.rsServices.getWAL(), this.server.getConfiguration(),
+ this.rsServices.getWAL(this.regionInfo),
+ this.server.getConfiguration(),
this.rsServices,
new CancelableProgressable() {
public boolean progress() {
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java Mon Jan 14 21:43:31 2013
@@ -154,6 +154,8 @@ class FSHLog implements HLog, Syncable {
private final AtomicLong logSeqNum = new AtomicLong(0);
+ private boolean forMeta = false;
+
// The timestamp (in ms) when the log file was created.
private volatile long filenum = -1;
@@ -211,15 +213,15 @@ class FSHLog implements HLog, Syncable {
*
* @param fs filesystem handle
* @param root path for stored and archived hlogs
- * @param logName dir where hlogs are stored
+ * @param logDir dir where hlogs are stored
* @param conf configuration to use
* @throws IOException
*/
- public FSHLog(final FileSystem fs, final Path root, final String logName,
+ public FSHLog(final FileSystem fs, final Path root, final String logDir,
final Configuration conf)
throws IOException {
- this(fs, root, logName, HConstants.HREGION_OLDLOGDIR_NAME,
- conf, null, true, null);
+ this(fs, root, logDir, HConstants.HREGION_OLDLOGDIR_NAME,
+ conf, null, true, null, false);
}
/**
@@ -227,16 +229,16 @@ class FSHLog implements HLog, Syncable {
*
* @param fs filesystem handle
* @param root path for stored and archived hlogs
- * @param logName dir where hlogs are stored
- * @param oldLogName dir where hlogs are archived
+ * @param logDir dir where hlogs are stored
+ * @param oldLogDir dir where hlogs are archived
* @param conf configuration to use
* @throws IOException
*/
- public FSHLog(final FileSystem fs, final Path root, final String logName,
- final String oldLogName, final Configuration conf)
+ public FSHLog(final FileSystem fs, final Path root, final String logDir,
+ final String oldLogDir, final Configuration conf)
throws IOException {
- this(fs, root, logName, oldLogName,
- conf, null, true, null);
+ this(fs, root, logDir, oldLogDir,
+ conf, null, true, null, false);
}
/**
@@ -248,7 +250,7 @@ class FSHLog implements HLog, Syncable {
*
* @param fs filesystem handle
* @param root path for stored and archived hlogs
- * @param logName dir where hlogs are stored
+ * @param logDir dir where hlogs are stored
* @param conf configuration to use
* @param listeners Listeners on WAL events. Listeners passed here will
* be registered before we do anything else; e.g. the
@@ -258,11 +260,11 @@ class FSHLog implements HLog, Syncable {
* If prefix is null, "hlog" will be used
* @throws IOException
*/
- public FSHLog(final FileSystem fs, final Path root, final String logName,
+ public FSHLog(final FileSystem fs, final Path root, final String logDir,
final Configuration conf, final List<WALActionsListener> listeners,
final String prefix) throws IOException {
- this(fs, root, logName, HConstants.HREGION_OLDLOGDIR_NAME,
- conf, listeners, true, prefix);
+ this(fs, root, logDir, HConstants.HREGION_OLDLOGDIR_NAME,
+ conf, listeners, true, prefix, false);
}
/**
@@ -274,7 +276,8 @@ class FSHLog implements HLog, Syncable {
*
* @param fs filesystem handle
* @param root path to where logs and oldlogs
- * @param oldLogName path to where hlogs are archived
+ * @param logDir dir where hlogs are stored
+ * @param oldLogDir dir where hlogs are archived
* @param conf configuration to use
* @param listeners Listeners on WAL events. Listeners passed here will
* be registered before we do anything else; e.g. the
@@ -283,18 +286,20 @@ class FSHLog implements HLog, Syncable {
* @param prefix should always be hostname and port in distributed env and
* it will be URL encoded before being used.
* If prefix is null, "hlog" will be used
+ * @param forMeta if this hlog is meant for meta updates
* @throws IOException
*/
- private FSHLog(final FileSystem fs, final Path root, final String logName,
- final String oldLogName, final Configuration conf,
+ public FSHLog(final FileSystem fs, final Path root, final String logDir,
+ final String oldLogDir, final Configuration conf,
final List<WALActionsListener> listeners,
- final boolean failIfLogDirExists, final String prefix)
+ final boolean failIfLogDirExists, final String prefix, boolean forMeta)
throws IOException {
super();
this.fs = fs;
this.rootDir = root;
- this.dir = new Path(this.rootDir, logName);
- this.oldLogDir = new Path(this.rootDir, oldLogName);
+ this.dir = new Path(this.rootDir, logDir);
+ this.oldLogDir = new Path(this.rootDir, oldLogDir);
+ this.forMeta = forMeta;
this.conf = conf;
if (listeners != null) {
@@ -333,15 +338,16 @@ class FSHLog implements HLog, Syncable {
// If prefix is null||empty then just name it hlog
this.prefix = prefix == null || prefix.isEmpty() ?
"hlog" : URLEncoder.encode(prefix, "UTF8");
-
- if (failIfLogDirExists && this.fs.exists(dir)) {
+
+ boolean dirExists = false;
+ if (failIfLogDirExists && (dirExists = this.fs.exists(dir))) {
throw new IOException("Target HLog directory already exists: " + dir);
}
- if (!fs.mkdirs(dir)) {
+ if (!dirExists && !fs.mkdirs(dir)) {
throw new IOException("Unable to mkdir " + dir);
}
- if (!fs.exists(oldLogDir)) {
+ if (!fs.exists(this.oldLogDir)) {
if (!fs.mkdirs(this.oldLogDir)) {
throw new IOException("Unable to mkdir " + this.oldLogDir);
}
@@ -483,6 +489,7 @@ class FSHLog implements HLog, Syncable {
long currentFilenum = this.filenum;
Path oldPath = null;
if (currentFilenum > 0) {
+ //computeFilename will take care of meta hlog filename
oldPath = computeFilename(currentFilenum);
}
this.filenum = System.currentTimeMillis();
@@ -561,6 +568,9 @@ class FSHLog implements HLog, Syncable {
*/
protected Writer createWriterInstance(final FileSystem fs, final Path path,
final Configuration conf) throws IOException {
+ if (forMeta) {
+ //TODO: set a higher replication for the hlog files (HBASE-6773)
+ }
return HLogFactory.createWriter(fs, path, conf);
}
@@ -729,7 +739,11 @@ class FSHLog implements HLog, Syncable {
if (filenum < 0) {
throw new RuntimeException("hlog file number can't be < 0");
}
- return new Path(dir, prefix + "." + filenum);
+ String child = prefix + "." + filenum;
+ if (forMeta) {
+ child += HLog.META_HLOG_FILE_EXTN;
+ }
+ return new Path(dir, child);
}
@Override
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java Mon Jan 14 21:43:31 2013
@@ -50,6 +50,8 @@ public interface HLog {
/** File Extension used while splitting an HLog into regions (HBASE-2312) */
public static final String SPLITTING_EXT = "-splitting";
public static final boolean SPLIT_SKIP_ERRORS_DEFAULT = false;
+ /** The META region's HLog filename extension */
+ public static final String META_HLOG_FILE_EXTN = ".meta";
/*
* Name of directory that holds recovered edits written by the wal log
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogFactory.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogFactory.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogFactory.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogFactory.java Mon Jan 14 21:43:31 2013
@@ -26,9 +26,9 @@ import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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.HConstants;
import org.apache.hadoop.hbase.regionserver.wal.HLog.Reader;
import org.apache.hadoop.hbase.regionserver.wal.HLog.Writer;
@@ -50,6 +50,13 @@ public class HLogFactory {
final String prefix) throws IOException {
return new FSHLog(fs, root, logName, conf, listeners, prefix);
}
+
+ public static HLog createMetaHLog(final FileSystem fs, final Path root, final String logName,
+ final Configuration conf, final List<WALActionsListener> listeners,
+ final String prefix) throws IOException {
+ return new FSHLog(fs, root, logName, HConstants.HREGION_OLDLOGDIR_NAME,
+ conf, listeners, false, prefix, true);
+ }
/*
* WAL Reader
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogSplitter.java Mon Jan 14 21:43:31 2013
@@ -49,6 +49,7 @@ import org.apache.hadoop.conf.Configurat
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.PathFilter;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.RemoteExceptionHandler;
@@ -302,6 +303,11 @@ public class HLogSplitter {
+ ": " + logPath + ", length=" + logLength);
Reader in = null;
try {
+ //actually, for meta-only hlogs, we don't need to go thru the process
+ //of parsing and segregating by regions since all the logs are for
+ //meta only. However, there is a sequence number that can be obtained
+ //only by parsing.. so we parse for all files currently
+ //TODO: optimize this part somehow
in = getReader(fs, log, conf, skipErrors);
if (in != null) {
parseHLog(in, logPath, entryBuffers, fs, conf, skipErrors);
Modified: hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java (original)
+++ hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java Mon Jan 14 21:43:31 2013
@@ -76,7 +76,8 @@ public class HLogUtil {
/**
* Pattern used to validate a HLog file name
*/
- private static final Pattern pattern = Pattern.compile(".*\\.\\d*");
+ private static final Pattern pattern =
+ Pattern.compile(".*\\.\\d*("+HLog.META_HLOG_FILE_EXTN+")*");
/**
* @param filename
@@ -312,4 +313,11 @@ public class HLogUtil {
}
return filesSorted;
}
+
+ public static boolean isMetaFile(Path p) {
+ if (p.getName().endsWith(HLog.META_HLOG_FILE_EXTN)) {
+ return true;
+ }
+ return false;
+ }
}
Modified: hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java (original)
+++ hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/MockRegionServer.java Mon Jan 14 21:43:31 2013
@@ -274,12 +274,6 @@ class MockRegionServer implements AdminP
}
@Override
- public HLog getWAL() {
- // TODO Auto-generated method stub
- return null;
- }
-
- @Override
public CompactionRequestor getCompactionRequester() {
// TODO Auto-generated method stub
return null;
@@ -499,4 +493,10 @@ class MockRegionServer implements AdminP
// TODO Auto-generated method stub
return null;
}
+
+ @Override
+ public HLog getWAL(HRegionInfo regionInfo) throws IOException {
+ // TODO Auto-generated method stub
+ return null;
+ }
}
Modified: hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java?rev=1433152&r1=1433151&r2=1433152&view=diff
==============================================================================
--- hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java (original)
+++ hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/MockRegionServerServices.java Mon Jan 14 21:43:31 2013
@@ -25,6 +25,7 @@ import java.util.concurrent.ConcurrentSk
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.catalog.CatalogTracker;
import org.apache.hadoop.hbase.fs.HFileSystem;
@@ -89,11 +90,6 @@ public class MockRegionServerServices im
}
@Override
- public HLog getWAL() {
- return null;
- }
-
- @Override
public RpcServer getRpcServer() {
return null;
}
@@ -170,4 +166,10 @@ public class MockRegionServerServices im
public Leases getLeases() {
return null;
}
-}
\ No newline at end of file
+
+ @Override
+ public HLog getWAL(HRegionInfo regionInfo) throws IOException {
+ // TODO Auto-generated method stub
+ return null;
+ }
+}