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

Example 6 with CacheDirectiveEntry

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

the class PBHelperClient method convert.

public static CacheDirectiveEntry convert(CacheDirectiveEntryProto proto) {
    CacheDirectiveInfo info = convert(proto.getInfo());
    CacheDirectiveStats stats = convert(proto.getStats());
    return new CacheDirectiveEntry(info, stats);
}

Example 7 with CacheDirectiveEntry

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

the class TestCacheDirectives method testMaxRelativeExpiry.

@Test(timeout = 30000)
public void testMaxRelativeExpiry() throws Exception {
    // Test that negative and really big max expirations can't be set during add
    try {
        dfs.addCachePool(new CachePoolInfo("failpool").setMaxRelativeExpiryMs(-1l));
        fail("Added a pool with a negative max expiry.");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("negative", e);
    }
    try {
        dfs.addCachePool(new CachePoolInfo("failpool").setMaxRelativeExpiryMs(Long.MAX_VALUE - 1));
        fail("Added a pool with too big of a max expiry.");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("too big", e);
    }
    // Test that setting a max relative expiry on a pool works
    CachePoolInfo coolPool = new CachePoolInfo("coolPool");
    final long poolExpiration = 1000 * 60 * 10l;
    dfs.addCachePool(coolPool.setMaxRelativeExpiryMs(poolExpiration));
    RemoteIterator<CachePoolEntry> poolIt = dfs.listCachePools();
    CachePoolInfo listPool = poolIt.next().getInfo();
    assertFalse("Should only be one pool", poolIt.hasNext());
    assertEquals("Expected max relative expiry to match set value", poolExpiration, listPool.getMaxRelativeExpiryMs().longValue());
    // Test that negative and really big max expirations can't be modified
    try {
        dfs.addCachePool(coolPool.setMaxRelativeExpiryMs(-1l));
        fail("Added a pool with a negative max expiry.");
    } catch (InvalidRequestException e) {
        assertExceptionContains("negative", e);
    }
    try {
        dfs.modifyCachePool(coolPool.setMaxRelativeExpiryMs(CachePoolInfo.RELATIVE_EXPIRY_NEVER + 1));
        fail("Added a pool with too big of a max expiry.");
    } catch (InvalidRequestException e) {
        assertExceptionContains("too big", e);
    }
    // Test that adding a directives without an expiration uses the pool's max
    CacheDirectiveInfo defaultExpiry = new CacheDirectiveInfo.Builder().setPath(new Path("/blah")).setPool(coolPool.getPoolName()).build();
    dfs.addCacheDirective(defaultExpiry);
    RemoteIterator<CacheDirectiveEntry> dirIt = dfs.listCacheDirectives(defaultExpiry);
    CacheDirectiveInfo listInfo = dirIt.next().getInfo();
    assertFalse("Should only have one entry in listing", dirIt.hasNext());
    long listExpiration = listInfo.getExpiration().getAbsoluteMillis() - new Date().getTime();
    assertTrue("Directive expiry should be approximately the pool's max expiry", Math.abs(listExpiration - poolExpiration) < 10 * 1000);
    // Test that the max is enforced on add for relative and absolute
    CacheDirectiveInfo.Builder builder = new CacheDirectiveInfo.Builder().setPath(new Path("/lolcat")).setPool(coolPool.getPoolName());
    try {
        dfs.addCacheDirective(builder.setExpiration(Expiration.newRelative(poolExpiration + 1)).build());
        fail("Added a directive that exceeds pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    try {
        dfs.addCacheDirective(builder.setExpiration(Expiration.newAbsolute(new Date().getTime() + poolExpiration + (10 * 1000))).build());
        fail("Added a directive that exceeds pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    // Test that max is enforced on modify for relative and absolute Expirations
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setExpiration(Expiration.newRelative(poolExpiration + 1)).build());
        fail("Modified a directive to exceed pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setExpiration(Expiration.newAbsolute(new Date().getTime() + poolExpiration + (10 * 1000))).build());
        fail("Modified a directive to exceed pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    // Test some giant limit values with add
    try {
        dfs.addCacheDirective(builder.setExpiration(Expiration.newRelative(Long.MAX_VALUE)).build());
        fail("Added a directive with a gigantic max value");
    } catch (IllegalArgumentException e) {
        assertExceptionContains("is too far in the future", e);
    }
    try {
        dfs.addCacheDirective(builder.setExpiration(Expiration.newAbsolute(Long.MAX_VALUE)).build());
        fail("Added a directive with a gigantic max value");
    } catch (InvalidRequestException e) {
        assertExceptionContains("is too far in the future", e);
    }
    // Test some giant limit values with modify
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setExpiration(Expiration.NEVER).build());
        fail("Modified a directive to exceed pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setExpiration(Expiration.newAbsolute(Long.MAX_VALUE)).build());
        fail("Modified a directive to exceed pool's max relative expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("is too far in the future", e);
    }
    // Test that the max is enforced on modify correctly when changing pools
    CachePoolInfo destPool = new CachePoolInfo("destPool");
    dfs.addCachePool(destPool.setMaxRelativeExpiryMs(poolExpiration / 2));
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setPool(destPool.getPoolName()).build());
        fail("Modified a directive to a pool with a lower max expiration");
    } catch (InvalidRequestException e) {
        assertExceptionContains("exceeds the max relative expiration", e);
    }
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(defaultExpiry).setId(listInfo.getId()).setPool(destPool.getPoolName()).setExpiration(Expiration.newRelative(poolExpiration / 2)).build());
    dirIt = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setPool(destPool.getPoolName()).build());
    listInfo = dirIt.next().getInfo();
    listExpiration = listInfo.getExpiration().getAbsoluteMillis() - new Date().getTime();
    assertTrue("Unexpected relative expiry " + listExpiration + " expected approximately " + poolExpiration / 2, Math.abs(poolExpiration / 2 - listExpiration) < 10 * 1000);
    // Test that cache pool and directive expiry can be modified back to never
    dfs.modifyCachePool(destPool.setMaxRelativeExpiryMs(CachePoolInfo.RELATIVE_EXPIRY_NEVER));
    poolIt = dfs.listCachePools();
    listPool = poolIt.next().getInfo();
    while (!listPool.getPoolName().equals(destPool.getPoolName())) {
        listPool = poolIt.next().getInfo();
    }
    assertEquals("Expected max relative expiry to match set value", CachePoolInfo.RELATIVE_EXPIRY_NEVER, listPool.getMaxRelativeExpiryMs().longValue());
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(listInfo.getId()).setExpiration(Expiration.newRelative(RELATIVE_EXPIRY_NEVER)).build());
    // Test modifying close to the limit
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(listInfo.getId()).setExpiration(Expiration.newRelative(RELATIVE_EXPIRY_NEVER - 1)).build());
}

Example 8 with CacheDirectiveEntry

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

the class TestCacheDirectives method testWaitForCachedReplicas.

@Test(timeout = 120000)
public void testWaitForCachedReplicas() throws Exception {
    FileSystemTestHelper helper = new FileSystemTestHelper();
    GenericTestUtils.waitFor(new Supplier<Boolean>() {

        @Override
        public Boolean get() {
            return ((namenode.getNamesystem().getCacheCapacity() == (NUM_DATANODES * CACHE_CAPACITY)) && (namenode.getNamesystem().getCacheUsed() == 0));
        }
    }, 500, 60000);
    // Send a cache report referring to a bogus block.  It is important that
    // the NameNode be robust against this.
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    DataNode dn0 = cluster.getDataNodes().get(0);
    String bpid = cluster.getNamesystem().getBlockPoolId();
    LinkedList<Long> bogusBlockIds = new LinkedList<Long>();
    bogusBlockIds.add(999999L);
    nnRpc.cacheReport(dn0.getDNRegistrationForBP(bpid), bpid, bogusBlockIds);
    Path rootDir = helper.getDefaultWorkingDirectory(dfs);
    // Create the pool
    final String pool = "friendlyPool";
    nnRpc.addCachePool(new CachePoolInfo("friendlyPool"));
    // Create some test files
    final int numFiles = 2;
    final int numBlocksPerFile = 2;
    final List<String> paths = new ArrayList<String>(numFiles);
    for (int i = 0; i < numFiles; i++) {
        Path p = new Path(rootDir, "testCachePaths-" + i);
        FileSystemTestHelper.createFile(dfs, p, numBlocksPerFile, (int) BLOCK_SIZE);
        paths.add(p.toUri().getPath());
    }
    // Check the initial statistics at the namenode
    waitForCachedBlocks(namenode, 0, 0, "testWaitForCachedReplicas:0");
    // Cache and check each path in sequence
    int expected = 0;
    for (int i = 0; i < numFiles; i++) {
        CacheDirectiveInfo directive = new CacheDirectiveInfo.Builder().setPath(new Path(paths.get(i))).setPool(pool).build();
        nnRpc.addCacheDirective(directive, EnumSet.noneOf(CacheFlag.class));
        expected += numBlocksPerFile;
        waitForCachedBlocks(namenode, expected, expected, "testWaitForCachedReplicas:1");
    }
    // Check that the datanodes have the right cache values
    DatanodeInfo[] live = dfs.getDataNodeStats(DatanodeReportType.LIVE);
    assertEquals("Unexpected number of live nodes", NUM_DATANODES, live.length);
    long totalUsed = 0;
    for (DatanodeInfo dn : live) {
        final long cacheCapacity = dn.getCacheCapacity();
        final long cacheUsed = dn.getCacheUsed();
        final long cacheRemaining = dn.getCacheRemaining();
        assertEquals("Unexpected cache capacity", CACHE_CAPACITY, cacheCapacity);
        assertEquals("Capacity not equal to used + remaining", cacheCapacity, cacheUsed + cacheRemaining);
        assertEquals("Remaining not equal to capacity - used", cacheCapacity - cacheUsed, cacheRemaining);
        totalUsed += cacheUsed;
    }
    assertEquals(expected * BLOCK_SIZE, totalUsed);
    // Uncache and check each path in sequence
    RemoteIterator<CacheDirectiveEntry> entries = new CacheDirectiveIterator(nnRpc, null, FsTracer.get(conf));
    for (int i = 0; i < numFiles; i++) {
        CacheDirectiveEntry entry = entries.next();
        nnRpc.removeCacheDirective(entry.getInfo().getId());
        expected -= numBlocksPerFile;
        waitForCachedBlocks(namenode, expected, expected, "testWaitForCachedReplicas:2");
    }
}

Example 9 with CacheDirectiveEntry

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

the class TestCacheDirectives method testAddRemoveDirectives.

@Test(timeout = 60000)
public void testAddRemoveDirectives() throws Exception {
    proto.addCachePool(new CachePoolInfo("pool1").setMode(new FsPermission((short) 0777)));
    proto.addCachePool(new CachePoolInfo("pool2").setMode(new FsPermission((short) 0777)));
    proto.addCachePool(new CachePoolInfo("pool3").setMode(new FsPermission((short) 0777)));
    proto.addCachePool(new CachePoolInfo("pool4").setMode(new FsPermission((short) 0)));
    CacheDirectiveInfo alpha = new CacheDirectiveInfo.Builder().setPath(new Path("/alpha")).setPool("pool1").build();
    CacheDirectiveInfo beta = new CacheDirectiveInfo.Builder().setPath(new Path("/beta")).setPool("pool2").build();
    CacheDirectiveInfo delta = new CacheDirectiveInfo.Builder().setPath(new Path("/delta")).setPool("pool1").build();
    long alphaId = addAsUnprivileged(alpha);
    long alphaId2 = addAsUnprivileged(alpha);
    assertFalse("Expected to get unique directives when re-adding an " + "existing CacheDirectiveInfo", alphaId == alphaId2);
    long betaId = addAsUnprivileged(beta);
    try {
        addAsUnprivileged(new CacheDirectiveInfo.Builder().setPath(new Path("/unicorn")).setPool("no_such_pool").build());
        fail("expected an error when adding to a non-existent pool.");
    } catch (InvalidRequestException ioe) {
        GenericTestUtils.assertExceptionContains("Unknown pool", ioe);
    }
    try {
        addAsUnprivileged(new CacheDirectiveInfo.Builder().setPath(new Path("/blackhole")).setPool("pool4").build());
        fail("expected an error when adding to a pool with " + "mode 0 (no permissions for anyone).");
    } catch (AccessControlException e) {
        GenericTestUtils.assertExceptionContains("Permission denied while accessing pool", e);
    }
    try {
        addAsUnprivileged(new CacheDirectiveInfo.Builder().setPath(new Path("/illegal:path/")).setPool("pool1").build());
        fail("expected an error when adding a malformed path " + "to the cache directives.");
    } catch (IllegalArgumentException e) {
        GenericTestUtils.assertExceptionContains("is not a valid DFS filename", e);
    }
    try {
        addAsUnprivileged(new CacheDirectiveInfo.Builder().setPath(new Path("/emptypoolname")).setReplication((short) 1).setPool("").build());
        fail("expected an error when adding a cache " + "directive with an empty pool name.");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("Invalid empty pool name", e);
    }
    long deltaId = addAsUnprivileged(delta);
    // We expect the following to succeed, because DistributedFileSystem
    // qualifies the path.
    long relativeId = addAsUnprivileged(new CacheDirectiveInfo.Builder().setPath(new Path("relative")).setPool("pool1").build());
    RemoteIterator<CacheDirectiveEntry> iter;
    iter = dfs.listCacheDirectives(null);
    validateListAll(iter, alphaId, alphaId2, betaId, deltaId, relativeId);
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setPool("pool3").build());
    assertFalse(iter.hasNext());
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setPool("pool1").build());
    validateListAll(iter, alphaId, alphaId2, deltaId, relativeId);
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setPool("pool2").build());
    validateListAll(iter, betaId);
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setId(alphaId2).build());
    validateListAll(iter, alphaId2);
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setId(relativeId).build());
    validateListAll(iter, relativeId);
    dfs.removeCacheDirective(betaId);
    iter = dfs.listCacheDirectives(new CacheDirectiveInfo.Builder().setPool("pool2").build());
    assertFalse(iter.hasNext());
    try {
        dfs.removeCacheDirective(betaId);
        fail("expected an error when removing a non-existent ID");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("No directive with ID", e);
    }
    try {
        proto.removeCacheDirective(-42l);
        fail("expected an error when removing a negative ID");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("Invalid negative ID", e);
    }
    try {
        proto.removeCacheDirective(43l);
        fail("expected an error when removing a non-existent ID");
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("No directive with ID", e);
    }
    dfs.removeCacheDirective(alphaId);
    dfs.removeCacheDirective(alphaId2);
    dfs.removeCacheDirective(deltaId);
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(relativeId).setReplication((short) 555).build());
    iter = dfs.listCacheDirectives(null);
    assertTrue(iter.hasNext());
    CacheDirectiveInfo modified = iter.next().getInfo();
    assertEquals(relativeId, modified.getId().longValue());
    assertEquals((short) 555, modified.getReplication().shortValue());
    dfs.removeCacheDirective(relativeId);
    iter = dfs.listCacheDirectives(null);
    assertFalse(iter.hasNext());
    // Verify that PBCDs with path "." work correctly
    CacheDirectiveInfo directive = new CacheDirectiveInfo.Builder().setPath(new Path(".")).setPool("pool1").build();
    long id = dfs.addCacheDirective(directive);
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder(directive).setId(id).setReplication((short) 2).build());
    dfs.removeCacheDirective(id);
    // Perform cache directive operations using a closed file system.
    DistributedFileSystem dfs1 = (DistributedFileSystem) cluster.getNewFileSystemInstance(0);
    dfs1.close();
    try {
        dfs1.listCacheDirectives(null);
        fail("listCacheDirectives using a closed filesystem!");
    } catch (IOException ioe) {
        GenericTestUtils.assertExceptionContains("Filesystem closed", ioe);
    }
    try {
        dfs1.addCacheDirective(alpha);
        fail("addCacheDirective using a closed filesystem!");
    } catch (IOException ioe) {
        GenericTestUtils.assertExceptionContains("Filesystem closed", ioe);
    }
    try {
        dfs1.modifyCacheDirective(alpha);
        fail("modifyCacheDirective using a closed filesystem!");
    } catch (IOException ioe) {
        GenericTestUtils.assertExceptionContains("Filesystem closed", ioe);
    }
    try {
        dfs1.removeCacheDirective(alphaId);
        fail("removeCacheDirective using a closed filesystem!");
    } catch (IOException ioe) {
        GenericTestUtils.assertExceptionContains("Filesystem closed", ioe);
    }
}

Example 10 with CacheDirectiveEntry

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

the class TestCacheDirectives method testExpiry.

@Test(timeout = 120000)
public void testExpiry() throws Exception {
    String pool = "pool1";
    dfs.addCachePool(new CachePoolInfo(pool));
    Path p = new Path("/mypath");
    DFSTestUtil.createFile(dfs, p, BLOCK_SIZE * 2, (short) 2, 0x999);
    // Expire after test timeout
    Date start = new Date();
    Date expiry = DateUtils.addSeconds(start, 120);
    final long id = dfs.addCacheDirective(new CacheDirectiveInfo.Builder().setPath(p).setPool(pool).setExpiration(CacheDirectiveInfo.Expiration.newAbsolute(expiry)).setReplication((short) 2).build());
    waitForCachedBlocks(cluster.getNameNode(), 2, 4, "testExpiry:1");
    // Change it to expire sooner
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(id).setExpiration(Expiration.newRelative(0)).build());
    waitForCachedBlocks(cluster.getNameNode(), 0, 0, "testExpiry:2");
    RemoteIterator<CacheDirectiveEntry> it = dfs.listCacheDirectives(null);
    CacheDirectiveEntry ent = it.next();
    assertFalse(it.hasNext());
    Date entryExpiry = new Date(ent.getInfo().getExpiration().getMillis());
    assertTrue("Directive should have expired", entryExpiry.before(new Date()));
    // Change it back to expire later
    dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(id).setExpiration(Expiration.newRelative(120000)).build());
    waitForCachedBlocks(cluster.getNameNode(), 2, 4, "testExpiry:3");
    it = dfs.listCacheDirectives(null);
    ent = it.next();
    assertFalse(it.hasNext());
    entryExpiry = new Date(ent.getInfo().getExpiration().getMillis());
    assertTrue("Directive should not have expired", entryExpiry.after(new Date()));
    // Verify that setting a negative TTL throws an error
    try {
        dfs.modifyCacheDirective(new CacheDirectiveInfo.Builder().setId(id).setExpiration(Expiration.newRelative(-1)).build());
    } catch (InvalidRequestException e) {
        GenericTestUtils.assertExceptionContains("Cannot set a negative expiration", e);
    }
}