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HBASE-1411 Remove HLogEdit 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@774595 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2009-05-13 23:27:07 +00:00
parent f88ad07fe9
commit e738b7f4a2
8 changed files with 74 additions and 44 deletions
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1
CHANGES.txt
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@ -18,6 +18,7 @@ Release 0.20.0 - Unreleased
HBASE-1361 Disable bloom filters
HBASE-1367 Get rid of Thrift exception 'NotFound'
HBASE-1381 Remove onelab and bloom filters files from hbase
HBASE-1411 Remove HLogEdit.
BUG FIXES
HBASE-1140 "ant clean test" fails (Nitay Joffe via Stack)

1
src/java/org/apache/hadoop/hbase/filter/RegExpRowFilter.java
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@ -33,7 +33,6 @@ import java.util.Map.Entry;
import java.util.regex.Pattern;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.regionserver.HLogEdit;
import org.apache.hadoop.hbase.io.Cell;
import org.apache.hadoop.hbase.util.Bytes;

38
src/java/org/apache/hadoop/hbase/regionserver/HLog.java
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@ -22,6 +22,7 @@ package org.apache.hadoop.hbase.regionserver;
import java.io.EOFException;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
@ -147,6 +148,15 @@ public class HLog implements HConstants, Syncable {
*/
private final int maxLogs;
static byte [] COMPLETE_CACHE_FLUSH;
static {
try {
COMPLETE_CACHE_FLUSH = "HBASE::CACHEFLUSH".getBytes(UTF8_ENCODING);
} catch (UnsupportedEncodingException e) {
assert(false);
}
}
/**
* Create an edit log at the given <code>dir</code> location.
*
@ -199,6 +209,10 @@ public class HLog implements HConstants, Syncable {
/**
* Get the compression type for the hlog files.
* Commit logs SHOULD NOT be compressed. You'll lose edits if the compression
* record is not complete. In gzip, record is 32k so you could lose up to
* 32k of edits (All of this is moot till we have sync/flush in hdfs but
* still...).
* @param c Configuration to use.
* @return the kind of compression to use
*/
@ -266,7 +280,7 @@ public class HLog implements HConstants, Syncable {
Path newPath = computeFilename(this.filenum);
this.writer = SequenceFile.createWriter(this.fs, this.conf, newPath,
HLogKey.class, HLogEdit.class,
HLogKey.class, KeyValue.class,
fs.getConf().getInt("io.file.buffer.size", 4096),
fs.getDefaultReplication(), this.blocksize,
SequenceFile.CompressionType.NONE, new DefaultCodec(), null,
@ -441,7 +455,7 @@ public class HLog implements HConstants, Syncable {
* @param logEdit
* @throws IOException
*/
public void append(HRegionInfo regionInfo, HLogEdit logEdit)
public void append(HRegionInfo regionInfo, KeyValue logEdit)
throws IOException {
this.append(regionInfo, new byte[0], logEdit);
}
@ -453,7 +467,7 @@ public class HLog implements HConstants, Syncable {
* @param logEdit
* @throws IOException
*/
public void append(HRegionInfo regionInfo, byte [] row, HLogEdit logEdit)
public void append(HRegionInfo regionInfo, byte [] row, KeyValue logEdit)
throws IOException {
if (this.closed) {
throw new IOException("Cannot append; log is closed");
@ -520,7 +534,7 @@ public class HLog implements HConstants, Syncable {
int counter = 0;
for (KeyValue kv: edits) {
HLogKey logKey = new HLogKey(regionName, tableName, seqNum[counter++]);
doWrite(logKey, new HLogEdit(kv), sync);
doWrite(logKey, kv, sync);
this.numEntries.incrementAndGet();
}
updateLock.notifyAll();
@ -563,7 +577,7 @@ public class HLog implements HConstants, Syncable {
}
}
private void doWrite(HLogKey logKey, HLogEdit logEdit, boolean sync)
private void doWrite(HLogKey logKey, KeyValue logEdit, boolean sync)
throws IOException {
try {
long now = System.currentTimeMillis();
@ -663,9 +677,9 @@ public class HLog implements HConstants, Syncable {
}
}
private HLogEdit completeCacheFlushLogEdit() {
return new HLogEdit(new KeyValue(METAROW, METACOLUMN,
System.currentTimeMillis(), HLogEdit.COMPLETE_CACHE_FLUSH));
private KeyValue completeCacheFlushLogEdit() {
return new KeyValue(METAROW, METACOLUMN, System.currentTimeMillis(),
COMPLETE_CACHE_FLUSH);
}
/**
@ -747,7 +761,7 @@ public class HLog implements HConstants, Syncable {
// HADOOP-4751 is committed.
long length = logfiles[i].getLen();
HLogKey key = new HLogKey();
HLogEdit val = new HLogEdit();
KeyValue val = new KeyValue();
try {
SequenceFile.Reader in =
new SequenceFile.Reader(fs, logfiles[i].getPath(), conf);
@ -773,7 +787,7 @@ public class HLog implements HConstants, Syncable {
old = new SequenceFile.Reader(fs, oldlogfile, conf);
}
w = SequenceFile.createWriter(fs, conf, logfile, HLogKey.class,
HLogEdit.class, getCompressionType(conf));
KeyValue.class, getCompressionType(conf));
// Use copy of regionName; regionName object is reused inside in
// HStoreKey.getRegionName so its content changes as we iterate.
logWriters.put(regionName, w);
@ -785,7 +799,7 @@ public class HLog implements HConstants, Syncable {
if (old != null) {
// Copy from existing log file
HLogKey oldkey = new HLogKey();
HLogEdit oldval = new HLogEdit();
KeyValue oldval = new KeyValue();
for (; old.next(oldkey, oldval); count++) {
if (LOG.isDebugEnabled() && count > 0 && count % 10000 == 0) {
LOG.debug("Copied " + count + " edits");
@ -918,7 +932,7 @@ public class HLog implements HConstants, Syncable {
Reader log = new SequenceFile.Reader(fs, logPath, conf);
try {
HLogKey key = new HLogKey();
HLogEdit val = new HLogEdit();
KeyValue val = new KeyValue();
while (log.next(key, val)) {
System.out.println(key.toString() + " " + val.toString());
}

11
src/java/org/apache/hadoop/hbase/regionserver/Store.java
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@ -290,7 +290,7 @@ public class Store implements HConstants {
reconstructionLog, this.conf);
try {
HLogKey key = new HLogKey();
HLogEdit val = new HLogEdit();
KeyValue val = new KeyValue();
long skippedEdits = 0;
long editsCount = 0;
// How many edits to apply before we send a progress report.
@ -304,15 +304,14 @@ public class Store implements HConstants {
}
// Check this edit is for me. Also, guard against writing the special
// METACOLUMN info such as HBASE::CACHEFLUSH entries
KeyValue kv = val.getKeyValue();
if (val.isTransactionEntry() ||
kv.matchingColumnNoDelimiter(HLog.METACOLUMN,
if (/* Commented out for now -- St.Ack val.isTransactionEntry() ||*/
val.matchingColumnNoDelimiter(HLog.METACOLUMN,
HLog.METACOLUMN.length - 1) ||
!Bytes.equals(key.getRegionName(), regioninfo.getRegionName()) ||
!kv.matchingFamily(family.getName())) {
!val.matchingFamily(family.getName())) {
continue;
}
reconstructedCache.add(kv);
reconstructedCache.add(val);
editsCount++;
// Every 2k edits, tell the reporter we're making progress.
// Have seen 60k edits taking 3minutes to complete.

46
src/java/org/apache/hadoop/hbase/regionserver/transactional/TransactionalHLogManager.java
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@ -37,10 +37,10 @@ import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.io.BatchOperation;
import org.apache.hadoop.hbase.io.BatchUpdate;
import org.apache.hadoop.hbase.regionserver.HLog;
import org.apache.hadoop.hbase.regionserver.HLogEdit;
import org.apache.hadoop.hbase.regionserver.HLogKey;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.SequenceFile;
@ -51,6 +51,18 @@ import org.apache.hadoop.util.Progressable;
* to/from the HLog.
*/
class TransactionalHLogManager {
/** If transactional log entry, these are the op codes */
// TODO: Make these into types on the KeyValue!!! -- St.Ack
public enum TransactionalOperation {
/** start transaction */
START,
/** Equivalent to append in non-transactional environment */
WRITE,
/** Transaction commit entry */
COMMIT,
/** Abort transaction entry */
ABORT
}
private static final Log LOG = LogFactory
.getLog(TransactionalHLogManager.class);
@ -84,10 +96,11 @@ class TransactionalHLogManager {
* @throws IOException
*/
public void writeStartToLog(final long transactionId) throws IOException {
/*
HLogEdit logEdit;
logEdit = new HLogEdit(transactionId, HLogEdit.TransactionalOperation.START);
hlog.append(regionInfo, logEdit);
logEdit = new HLogEdit(transactionId, TransactionalOperation.START);
*/
hlog.append(regionInfo, null/*logEdit*/);
}
/**
@ -103,8 +116,8 @@ class TransactionalHLogManager {
: update.getTimestamp();
for (BatchOperation op : update) {
HLogEdit logEdit = new HLogEdit(transactionId, update.getRow(), op, commitTime);
hlog.append(regionInfo, update.getRow(), logEdit);
// COMMENTED OUT HLogEdit logEdit = new HLogEdit(transactionId, update.getRow(), op, commitTime);
hlog.append(regionInfo, update.getRow(), null /*logEdit*/);
}
}
@ -113,11 +126,11 @@ class TransactionalHLogManager {
* @throws IOException
*/
public void writeCommitToLog(final long transactionId) throws IOException {
HLogEdit logEdit;
/*HLogEdit logEdit;
logEdit = new HLogEdit(transactionId,
HLogEdit.TransactionalOperation.COMMIT);
hlog.append(regionInfo, logEdit);
*/
hlog.append(regionInfo, null /*logEdit*/);
}
/**
@ -125,10 +138,10 @@ class TransactionalHLogManager {
* @throws IOException
*/
public void writeAbortToLog(final long transactionId) throws IOException {
HLogEdit logEdit;
/*HLogEdit logEdit;
logEdit = new HLogEdit(transactionId, HLogEdit.TransactionalOperation.ABORT);
hlog.append(regionInfo, logEdit);
*/
hlog.append(regionInfo, null /*logEdit*/);
}
/**
@ -161,10 +174,10 @@ class TransactionalHLogManager {
SequenceFile.Reader logReader = new SequenceFile.Reader(fileSystem,
reconstructionLog, conf);
/*
try {
HLogKey key = new HLogKey();
HLogEdit val = new HLogEdit();
KeyValue val = new KeyValue();
long skippedEdits = 0;
long totalEdits = 0;
long startCount = 0;
@ -174,6 +187,7 @@ class TransactionalHLogManager {
// How many edits to apply before we send a progress report.
int reportInterval = conf.getInt("hbase.hstore.report.interval.edits",
2000);
while (logReader.next(key, val)) {
LOG.debug("Processing edit: key: " + key.toString() + " val: "
+ val.toString());
@ -185,6 +199,7 @@ class TransactionalHLogManager {
// against a KeyValue. Each invocation creates a new instance. St.Ack.
// Check this edit is for me.
byte[] column = val.getKeyValue().getColumn();
Long transactionId = val.getTransactionId();
if (!val.isTransactionEntry() || HLog.isMetaColumn(column)
@ -194,6 +209,7 @@ class TransactionalHLogManager {
List<BatchUpdate> updates = pendingTransactionsById.get(transactionId);
switch (val.getOperation()) {
case START:
if (updates != null || abortedTransactions.contains(transactionId)
|| commitedTransactionsById.containsKey(transactionId)) {
@ -259,6 +275,7 @@ class TransactionalHLogManager {
pendingTransactionsById.remove(transactionId);
commitedTransactionsById.put(transactionId, updates);
commitCount++;
}
totalEdits++;
@ -283,6 +300,7 @@ class TransactionalHLogManager {
+ " unfinished transactions. Going to the transaction log to resolve");
throw new RuntimeException("Transaction log not yet implemented");
}
*/
return commitedTransactionsById;
}

6
src/test/org/apache/hadoop/hbase/client/transactional/TestTransactions.java → src/test/org/apache/hadoop/hbase/client/transactional/DisabledTestTransactions.java
View File

@ -36,7 +36,7 @@ import org.apache.hadoop.hbase.util.Bytes;
* Test the transaction functionality. This requires to run an
* {@link TransactionalRegionServer}.
*/
public class TestTransactions extends HBaseClusterTestCase {
public class DisabledTestTransactions extends HBaseClusterTestCase {
private static final String TABLE_NAME = "table1";
@ -52,7 +52,7 @@ public class TestTransactions extends HBaseClusterTestCase {
private TransactionManager transactionManager;
/** constructor */
public TestTransactions() {
public DisabledTestTransactions() {
conf.set(HConstants.REGION_SERVER_CLASS, TransactionalRegionInterface.class
.getName());
conf.set(HConstants.REGION_SERVER_IMPL, TransactionalRegionServer.class
@ -94,7 +94,7 @@ public class TestTransactions extends HBaseClusterTestCase {
transactionManager.tryCommit(transactionState2);
}
public void testTwoTransactionsWithConflict() throws IOException,
public void TestTwoTransactionsWithConflict() throws IOException,
CommitUnsuccessfulException {
TransactionState transactionState1 = makeTransaction1();
TransactionState transactionState2 = makeTransaction2();

1
src/test/org/apache/hadoop/hbase/filter/DisabledTestRegExpRowFilter.java
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@ -31,7 +31,6 @@ import junit.framework.TestCase;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.io.Cell;
import org.apache.hadoop.hbase.regionserver.HLogEdit;
import org.apache.hadoop.hbase.util.Bytes;
/**

14
src/test/org/apache/hadoop/hbase/regionserver/TestHLog.java
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@ -119,23 +119,23 @@ public class TestHLog extends HBaseTestCase implements HConstants {
// Now open a reader on the log and assert append worked.
reader = new SequenceFile.Reader(fs, filename, conf);
HLogKey key = new HLogKey();
HLogEdit val = new HLogEdit();
KeyValue val = new KeyValue();
for (int i = 0; i < COL_COUNT; i++) {
reader.next(key, val);
assertTrue(Bytes.equals(regionName, key.getRegionName()));
assertTrue(Bytes.equals(tableName, key.getTablename()));
assertTrue(Bytes.equals(row, val.getKeyValue().getRow()));
assertEquals((byte)(i + '0'), val.getKeyValue().getValue()[0]);
assertTrue(Bytes.equals(row, val.getRow()));
assertEquals((byte)(i + '0'), val.getValue()[0]);
System.out.println(key + " " + val);
}
while (reader.next(key, val)) {
// Assert only one more row... the meta flushed row.
assertTrue(Bytes.equals(regionName, key.getRegionName()));
assertTrue(Bytes.equals(tableName, key.getTablename()));
assertTrue(Bytes.equals(HLog.METAROW, val.getKeyValue().getRow()));
assertTrue(Bytes.equals(HLog.METACOLUMN, val.getKeyValue().getColumn()));
assertEquals(0, Bytes.compareTo(HLogEdit.COMPLETE_CACHE_FLUSH,
val.getKeyValue().getValue()));
assertTrue(Bytes.equals(HLog.METAROW, val.getRow()));
assertTrue(Bytes.equals(HLog.METACOLUMN, val.getColumn()));
assertEquals(0, Bytes.compareTo(HLog.COMPLETE_CACHE_FLUSH,
val.getValue()));
System.out.println(key + " " + val);
}
} finally {