Examples with SnapshotDiffReport org.apache.hadoop.hdfs.protocol.SnapshotDiffReport used on opensource projects

Example 1 with SnapshotDiffReport

use of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport in project hadoop by apache.

the class TestDistCpSync method testSync4.

/**
   * Test a case where multiple level dirs are renamed.
   */
@Test
public void testSync4() throws Exception {
    initData4(source);
    initData4(target);
    enableAndCreateFirstSnapshot();
    // make changes under source
    changeData4(source);
    dfs.createSnapshot(source, "s2");
    SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
    System.out.println(report);
    syncAndVerify();
}

Example 2 with SnapshotDiffReport

use of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport in project hadoop by apache.

the class TestDistCpSyncReverseBase method testSync3.

/**
   * Test a case where there are multiple source files with the same name.
   */
@Test
public void testSync3() throws Exception {
    if (isSrcNotSameAsTgt) {
        initData3(source);
    }
    initData3(target);
    enableAndCreateFirstSnapshot();
    // make changes under target
    changeData3(target);
    createSecondSnapshotAtTarget();
    SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
    System.out.println(report);
    syncAndVerify();
}

Example 3 with SnapshotDiffReport

use of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport in project hadoop by apache.

the class TestDistCpSyncReverseBase method testSync.

/**
   * Test the basic functionality.
   */
@Test
public void testSync() throws Exception {
    if (isSrcNotSameAsTgt) {
        initData(source);
    }
    initData(target);
    enableAndCreateFirstSnapshot();
    final FsShell shell = new FsShell(conf);
    lsrSource("Before source: ", shell, source);
    lsr("Before target: ", shell, target);
    // make changes under target
    int numDeletedModified = changeData(target);
    createSecondSnapshotAtTarget();
    SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
    System.out.println(report);
    DistCpSync distCpSync = new DistCpSync(options, conf);
    lsr("Before sync target: ", shell, target);
    // do the sync
    Assert.assertTrue(distCpSync.sync());
    lsr("After sync target: ", shell, target);
    // make sure the source path has been updated to the snapshot path
    final Path spath = new Path(source, HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s1");
    Assert.assertEquals(spath, options.getSourcePaths().get(0));
    // build copy listing
    final Path listingPath = new Path("/tmp/META/fileList.seq");
    CopyListing listing = new SimpleCopyListing(conf, new Credentials(), distCpSync);
    listing.buildListing(listingPath, options);
    Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
    CopyMapper copyMapper = new CopyMapper();
    StubContext stubContext = new StubContext(conf, null, 0);
    Mapper<Text, CopyListingFileStatus, Text, Text>.Context<Text, CopyListingFileStatus, Text, Text> context = stubContext.getContext();
    // Enable append
    context.getConfiguration().setBoolean(DistCpOptionSwitch.APPEND.getConfigLabel(), true);
    copyMapper.setup(context);
    for (Map.Entry<Text, CopyListingFileStatus> entry : copyListing.entrySet()) {
        copyMapper.map(entry.getKey(), entry.getValue(), context);
    }
    lsrSource("After mapper source: ", shell, source);
    lsr("After mapper target: ", shell, target);
    // verify that we only list modified and created files/directories
    Assert.assertEquals(numDeletedModified, copyListing.size());
    // verify that we only copied new appended data of f2 and the new file f1
    Assert.assertEquals(blockSize * 3, stubContext.getReporter().getCounter(CopyMapper.Counter.BYTESCOPIED).getValue());
    // verify the source and target now has the same structure
    verifyCopy(dfs.getFileStatus(spath), dfs.getFileStatus(target), false);
}

Example 4 with SnapshotDiffReport

use of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport in project hadoop by apache.

the class TestDistCpSyncReverseBase method testSync2.

@Test
public void testSync2() throws Exception {
    if (isSrcNotSameAsTgt) {
        initData2(source);
    }
    initData2(target);
    enableAndCreateFirstSnapshot();
    // make changes under target
    changeData2(target);
    createSecondSnapshotAtTarget();
    SnapshotDiffReport report = dfs.getSnapshotDiffReport(target, "s2", "s1");
    System.out.println(report);
    syncAndVerify();
}

Example 5 with SnapshotDiffReport

use of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport in project hadoop by apache.

the class TestDistCpSync method testSync3.

/**
   * Test a case where there are multiple source files with the same name.
   */
@Test
public void testSync3() throws Exception {
    initData3(source);
    initData3(target);
    enableAndCreateFirstSnapshot();
    // make changes under source
    changeData3(source);
    dfs.createSnapshot(source, "s2");
    SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
    System.out.println(report);
    syncAndVerify();
}