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Original file line number Diff line number Diff line change
Expand Up @@ -502,14 +502,18 @@ private void restoreRegion(final RegionInfo regionInfo,
for (Path familyDir : FSUtils.getFamilyDirs(fs, regionDir)) {
byte[] family = Bytes.toBytes(familyDir.getName());

StoreFileTracker tracker = StoreFileTrackerFactory.create(conf, true,
StoreContext.getBuilder().withColumnFamilyDescriptor(tableDesc.getColumnFamily(family))
.withFamilyStoreDirectoryPath(familyDir).withRegionFileSystem(regionFS).build());
Set<String> familyFiles = getTableRegionFamilyFiles(familyDir);
List<SnapshotRegionManifest.StoreFile> snapshotFamilyFiles =
snapshotFiles.remove(familyDir.getName());
List<StoreFileInfo> filesToTrack = new ArrayList<>();
if (snapshotFamilyFiles != null) {
// Family exists in the snapshot, create tracker with merged table descriptor config
// so that table-level settings are picked up.
Configuration sftConf = StoreUtils.createStoreConfiguration(conf, tableDesc,
tableDesc.getColumnFamily(family));
StoreFileTracker tracker = StoreFileTrackerFactory.create(sftConf, true,
StoreContext.getBuilder().withColumnFamilyDescriptor(tableDesc.getColumnFamily(family))
.withFamilyStoreDirectoryPath(familyDir).withRegionFileSystem(regionFS).build());
List<StoreFileInfo> filesToTrack = new ArrayList<>();
List<SnapshotRegionManifest.StoreFile> hfilesToAdd = new ArrayList<>();
for (SnapshotRegionManifest.StoreFile storeFile : snapshotFamilyFiles) {
if (familyFiles.contains(storeFile.getName())) {
Expand Down Expand Up @@ -543,25 +547,29 @@ private void restoreRegion(final RegionInfo regionInfo,
// mark the reference file to be added to tracker
filesToTrack.add(tracker.getStoreFileInfo(new Path(familyDir, fileName), true));
}

// simply reset list of tracked files with the matching files
// and the extra one present in the snapshot
tracker.set(filesToTrack);
} else {
// Family doesn't exists in the snapshot
LOG.trace("Removing family=" + Bytes.toString(family) + " in snapshot=" + snapshotName
+ " from region=" + regionInfo.getEncodedName() + " table=" + tableName);
HFileArchiver.archiveFamilyByFamilyDir(fs, conf, regionInfo, familyDir, family);
fs.delete(familyDir, true);
}

// simply reset list of tracked files with the matching files
// and the extra one present in the snapshot
tracker.set(filesToTrack);
}

// Add families not present in the table
for (Map.Entry<String, List<SnapshotRegionManifest.StoreFile>> familyEntry : snapshotFiles
.entrySet()) {
Path familyDir = new Path(regionDir, familyEntry.getKey());
Configuration sftConf = StoreUtils.createStoreConfiguration(conf, tableDesc,
tableDesc.getColumnFamily(Bytes.toBytes(familyEntry.getKey())));
StoreFileTracker tracker =
StoreFileTrackerFactory.create(conf, true, StoreContext.getBuilder()
StoreFileTrackerFactory.create(sftConf, true, StoreContext.getBuilder()
.withColumnFamilyDescriptor(
tableDesc.getColumnFamily(Bytes.toBytes(familyEntry.getKey())))
.withFamilyStoreDirectoryPath(familyDir).withRegionFileSystem(regionFS).build());
List<StoreFileInfo> files = new ArrayList<>();
if (!fs.mkdirs(familyDir)) {
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,281 @@
/*
* 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.master.procedure;

import static org.apache.hadoop.hbase.regionserver.storefiletracker.StoreFileTrackerFactory.TRACKER_IMPL;
import static org.apache.hadoop.hbase.regionserver.storefiletracker.StoreFileTrackerFactory.Trackers.FILE;
import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.util.List;
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.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtil;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.CommonFSUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
* Integration test for RestoreSnapshotProcedure with FileBasedStoreFileTracker.
* Verifies the end-to-end restore snapshot flow works correctly when the FILE-based
* StoreFileTracker is in use. Uses HBaseTestingUtil to start an in-process mini
* HBase cluster to exercise the restoreRegion() code path in RestoreSnapshotHelper.
*/
@Category({ MasterTests.class, LargeTests.class })
public class TestRestoreSnapshotProcedureFileBasedSFT {

@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestRestoreSnapshotProcedureFileBasedSFT.class);

private static final Logger LOG =
LoggerFactory.getLogger(TestRestoreSnapshotProcedureFileBasedSFT.class);

private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
private static final byte[] CF = Bytes.toBytes("cf");

/** The .filelist directory name used by FileBasedStoreFileTracker. */
private static final String FILELIST_DIR = ".filelist";

@BeforeClass
public static void setupCluster() throws Exception {
Configuration conf = UTIL.getConfiguration();
// Do NOT set FILE tracker globally — the bug only manifests when
// global is Default and table-level config is FILE.
conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);
UTIL.startMiniCluster(3);
}

@AfterClass
public static void tearDownCluster() throws Exception {
UTIL.shutdownMiniCluster();
}

/**
* Test that reproduces the scenario where restore fails with FileNotFoundException:
* 1. Create table with FILE tracker, load data, snapshot
* 2. Load more data + flush (creates new HFiles not in snapshot)
* 3. Restore from snapshot
* 4. Verify all regions open and data matches the snapshot
*
* Before the fix, step 4 would fail with FileNotFoundException because
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this test testRestoreSnapshotWithFileTrackerAfterDataChange is still working without the fix as global SFT config itself is FILE, but this issue happens when global is Default and Table config is FILE like here - https://github.com/apache/hbase/pull/8013/changes#diff-35d1d555129ce54d8d45094be2f76300b7cd9d29c9a109ff95d81c626b428939R77

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thanks for pointing this out. removed the global TRACKER_IMPL=FILE setting from setupCluster() and now setting it at the table descriptor level only.

* the .filelist still referenced the post-snapshot HFiles that were
* archived during restore.
*/
@Test
public void testRestoreSnapshotWithFileTrackerAfterDataChange() throws Exception {
Admin admin = UTIL.getAdmin();
TableName tableName = TableName.valueOf("testRestoreWithFileTracker");
String snapshotName = "snapshot-before-change";

try {
// Step 1: Create table, load initial data, take snapshot
TableDescriptor htd = TableDescriptorBuilder.newBuilder(tableName)
.setColumnFamily(ColumnFamilyDescriptorBuilder.of(CF))
.setValue(TRACKER_IMPL, FILE.name())
.build();
UTIL.getAdmin().createTable(htd);
SnapshotTestingUtils.loadData(UTIL, tableName, 500, CF);

int snapshotRowCount;
try (Table table = UTIL.getConnection().getTable(tableName)) {
snapshotRowCount = UTIL.countRows(table);
}
LOG.info("Snapshot row count: {}", snapshotRowCount);
assertTrue("Should have loaded data", snapshotRowCount > 0);

admin.disableTable(tableName);
admin.snapshot(snapshotName, tableName);
admin.enableTable(tableName);

// Step 2: Load more data and flush to create new HFiles.
// These new HFiles will NOT be in the snapshot.
SnapshotTestingUtils.loadData(UTIL, tableName, 500, CF);
admin.flush(tableName);

int postFlushRowCount;
try (Table table = UTIL.getConnection().getTable(tableName)) {
postFlushRowCount = UTIL.countRows(table);
}
LOG.info("Post-flush row count: {} (snapshot had {})", postFlushRowCount,
snapshotRowCount);
assertTrue("Should have more rows after loading more data",
postFlushRowCount > snapshotRowCount);

// Step 3: Disable and restore from the earlier snapshot.
// restoreRegion() must update .filelist to point to the snapshot's HFiles.
admin.disableTable(tableName);
admin.restoreSnapshot(snapshotName);

// Step 4: Enable table, triggers region opens.
admin.enableTable(tableName);

// Verify all regions are online
List<RegionInfo> regions = admin.getRegions(tableName);
LOG.info("Number of regions after restore: {}", regions.size());
assertTrue("Table should have at least one region", regions.size() > 0);

// Verify data matches the snapshot (not the post-flush state)
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshotRowCount);
LOG.info("Data verification passed: row count matches snapshot ({})",
snapshotRowCount);

// Verify .filelist files exist on disk for each region
verifyFileListExists(tableName);

} finally {
if (admin.tableExists(tableName)) {
if (!admin.isTableDisabled(tableName)) {
admin.disableTable(tableName);
}
admin.deleteTable(tableName);
}
SnapshotTestingUtils.deleteAllSnapshots(admin);
SnapshotTestingUtils.deleteArchiveDirectory(UTIL);
}
}

/**
* Test restore after compaction, compaction creates new HFiles that replace
* the originals. After restore, the .filelist must point to the snapshot's
* HFiles, not the compaction output.
*/
@Test
public void testRestoreSnapshotAfterCompaction() throws Exception {
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this as well, since the global SFT config itself is FILE, this should work, but looks like an issue with the test, it fails at this assert https://github.com/apache/hbase/pull/8013/changes#diff-66c1760bfcfc64f561b37dd18df6a41595e93d1c516a326de27ad6e9c631ebb2R266
it should be failing here instead?

Admin admin = UTIL.getAdmin();
TableName tableName = TableName.valueOf("testRestoreAfterCompaction");
String snapshotName = "snapshot-before-compaction";

try {
// Create table with multiple regions
TableDescriptor htd = TableDescriptorBuilder.newBuilder(tableName)
.setColumnFamily(ColumnFamilyDescriptorBuilder.of(CF))
.setValue(TRACKER_IMPL, FILE.name())
.build();
UTIL.getAdmin().createTable(htd, Bytes.toBytes("row00000"),
Bytes.toBytes("row99999"), 4);

// Load data across regions
try (Table table = UTIL.getConnection().getTable(tableName)) {
for (int i = 0; i < 200; i++) {
Put put = new Put(Bytes.toBytes(String.format("row%05d", i)));
put.addColumn(CF, Bytes.toBytes("q"), Bytes.toBytes("val" + i));
table.put(put);
}
}
admin.flush(tableName);

int snapshotRowCount;
try (Table table = UTIL.getConnection().getTable(tableName)) {
snapshotRowCount = UTIL.countRows(table);
}

// Take snapshot
admin.disableTable(tableName);
admin.snapshot(snapshotName, tableName);
admin.enableTable(tableName);

// Load more data and trigger compaction, creates new HFiles
SnapshotTestingUtils.loadData(UTIL, tableName, 200, CF);
admin.flush(tableName);
admin.majorCompact(tableName);
// Wait for compaction to complete
Thread.sleep(5000);

// Restore from pre-compaction snapshot
admin.disableTable(tableName);
admin.restoreSnapshot(snapshotName);
admin.enableTable(tableName);

// Verify regions open and data is correct
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshotRowCount);
verifyFileListExists(tableName);
LOG.info("Restore after compaction verified successfully");

} finally {
if (admin.tableExists(tableName)) {
if (!admin.isTableDisabled(tableName)) {
admin.disableTable(tableName);
}
admin.deleteTable(tableName);
}
SnapshotTestingUtils.deleteAllSnapshots(admin);
SnapshotTestingUtils.deleteArchiveDirectory(UTIL);
}
}

/**
* Verify that .filelist files exist for each region/family of the table.
* This confirms that FileBasedStoreFileTracker.doSetStoreFiles() was called
* (not the no-op DefaultStoreFileTracker.doSetStoreFiles()).
*/
private void verifyFileListExists(TableName tableName) throws IOException {
Configuration conf = UTIL.getConfiguration();
FileSystem fs = FileSystem.get(conf);
Path rootDir = CommonFSUtils.getRootDir(conf);
Path tableDir = CommonFSUtils.getTableDir(rootDir, tableName);

int regionsWithFilelist = 0;
List<RegionInfo> regions = UTIL.getAdmin().getRegions(tableName);
for (RegionInfo ri : regions) {
Path regionDir = new Path(tableDir, ri.getEncodedName());
Path familyDir = new Path(regionDir, Bytes.toString(CF));
Path fileListDir = new Path(familyDir, FILELIST_DIR);

if (fs.exists(familyDir)) {
// Only check .filelist if the family directory has store files (non-directory entries
// excluding .filelist itself). Empty regions may not have .filelist written.
FileStatus[] storeFiles = fs.listStatus(familyDir,
path -> !path.getName().equals(FILELIST_DIR));
if (storeFiles != null && storeFiles.length > 0) {
assertTrue("Expected .filelist directory for region " + ri.getEncodedName(),
fs.exists(fileListDir));
FileStatus[] files = fs.listStatus(fileListDir);
assertTrue("Expected .filelist files for region " + ri.getEncodedName(),
files != null && files.length > 0);
regionsWithFilelist++;
LOG.info("Region {} has {} .filelist files", ri.getEncodedName(), files.length);
} else {
LOG.info("Region {} has no store files in family dir, skipping .filelist check",
ri.getEncodedName());
}
}
}
assertTrue("Expected at least one region with .filelist", regionsWithFilelist > 0);
}
}
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