/*
* This test attempts to upgrade the datanode from federation
* version -35 to upper version
* This test is for non-federation cluster with single namenode
*/
public void testNonFederationClusterUpgradeAfterFederationVersion() throws Exception {
File[] baseDirs;
UpgradeUtilities.initialize();
for (int numDirs = 1; numDirs <= 2; numDirs++) {
conf = new Configuration();
conf.setInt("dfs.datanode.scan.period.hours", -1);
conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
String[] nameNodeDirs = conf.getStrings("dfs.name.dir");
String[] dataNodeDirs = conf.getStrings("dfs.data.dir");
log("DataNode upgrade with federation layout version in current", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
try {
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
baseDirs = UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
UpgradeUtilities.createVersionFile(
DATA_NODE,
baseDirs,
new StorageInfo(
FSConstants.FEDERATION_VERSION,
UpgradeUtilities.getCurrentNamespaceID(cluster),
UpgradeUtilities.getCurrentFsscTime(cluster)),
cluster.getNameNode().getNamespaceID());
cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
checkResult(DATA_NODE, dataNodeDirs, 0, false);
} finally {
if (cluster != null) cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
}
}
}
/**
* Verify that the current directory exists and that the previous directory does not exist. Verify
* that current hasn't been modified by comparing the checksum of all it's containing files with
* their original checksum. Note that we do not check that previous is removed on the DataNode
* because its removal is asynchronous therefore we have no reliable way to know when it will
* happen.
*/
void checkResult(String[] nameNodeDirs, String[] dataNodeDirs) throws IOException {
for (int i = 0; i < nameNodeDirs.length; i++) {
assertTrue(new File(nameNodeDirs[i], "current").isDirectory());
assertTrue(new File(nameNodeDirs[i], "current/VERSION").isFile());
assertTrue(new File(nameNodeDirs[i], "current/edits").isFile());
assertTrue(new File(nameNodeDirs[i], "current/fsimage").isFile());
assertTrue(new File(nameNodeDirs[i], "current/fstime").isFile());
}
for (int i = 0; i < dataNodeDirs.length; i++) {
assertEquals(
UpgradeUtilities.checksumContents(DATA_NODE, new File(dataNodeDirs[i], "current")),
UpgradeUtilities.checksumMasterContents(DATA_NODE));
}
for (int i = 0; i < nameNodeDirs.length; i++) {
assertFalse(new File(nameNodeDirs[i], "previous").isDirectory());
}
}
/**
* Verify that the current and previous directories exist. Verify that previous hasn't been
* modified by comparing the checksum of all it's containing files with their original checksum.
* It is assumed that the server has recovered and upgraded. nsLevelUpgrade specify if the upgrade
* is at top level or ns level nsLevelUpgrade=true, we search basedir/current/NS-id/previous
* =false, we search basedir/previous
*/
void checkResult(NodeType nodeType, String[] baseDirs, int nnIndex, boolean simulatedPrevious)
throws IOException {
switch (nodeType) {
case NAME_NODE:
for (int i = 0; i < baseDirs.length; i++) {
assertTrue(new File(baseDirs[i], "current").isDirectory());
assertTrue(new File(baseDirs[i], "current/VERSION").isFile());
assertTrue(new File(baseDirs[i], "current/edits").isFile());
assertTrue(new File(baseDirs[i], "current/fsimage").isFile());
assertTrue(new File(baseDirs[i], "current/fstime").isFile());
}
break;
case DATA_NODE:
for (int i = 0; i < baseDirs.length; i++) {
assertEquals(
UpgradeUtilities.checksumContents(nodeType, new File(baseDirs[i], "current")),
UpgradeUtilities.checksumMasterContents(nodeType));
File nsBaseDir =
NameSpaceSliceStorage.getNsRoot(
cluster.getNameNode(nnIndex).getNamespaceID(), new File(baseDirs[i], "current"));
assertEquals(
UpgradeUtilities.checksumContents(
nodeType, new File(nsBaseDir, MiniDFSCluster.FINALIZED_DIR_NAME)),
UpgradeUtilities.checksumDatanodeNSStorageContents(nnIndex));
}
break;
}
for (int i = 0; i < baseDirs.length; i++) {
switch (nodeType) {
case NAME_NODE:
assertTrue(new File(baseDirs[i], "previous").isDirectory());
assertEquals(
UpgradeUtilities.checksumContents(nodeType, new File(baseDirs[i], "previous")),
UpgradeUtilities.checksumMasterContents(nodeType));
break;
case DATA_NODE:
File nsBaseDir = null;
nsBaseDir =
NameSpaceSliceStorage.getNsRoot(
cluster.getNameNode(nnIndex).getNamespaceID(), new File(baseDirs[i], "current"));
// Top level upgrade should not exist.
assertFalse(new File(baseDirs[i], "previous").isDirectory() && !simulatedPrevious);
assertTrue(new File(nsBaseDir, "previous").isDirectory());
assertEquals(
UpgradeUtilities.checksumContents(
nodeType, new File(nsBaseDir, "previous/finalized")),
UpgradeUtilities.checksumDatanodeNSStorageContents(nnIndex));
}
}
}
/** This test attempts to finalize the NameNode and DataNode. */
public void testFinalize() throws Exception {
UpgradeUtilities.initialize();
for (int numDirs = 1; numDirs <= 2; numDirs++) {
/* This test requires that "current" directory not change after
* the upgrade. Actually it is ok for those contents to change.
* For now disabling block verification so that the contents are
* not changed.
*/
conf = new HdfsConfiguration();
conf.setInt("dfs.datanode.scan.period.hours", -1);
conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
String[] nameNodeDirs = conf.getStrings(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY);
String[] dataNodeDirs = conf.getStrings(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY);
log("Finalize with existing previous dir", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "previous");
UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "previous");
cluster =
new MiniDFSCluster.Builder(conf)
.format(false)
.manageDataDfsDirs(false)
.manageNameDfsDirs(false)
.startupOption(StartupOption.REGULAR)
.build();
cluster.finalizeCluster(conf);
checkResult(nameNodeDirs, dataNodeDirs);
log("Finalize without existing previous dir", numDirs);
cluster.finalizeCluster(conf);
checkResult(nameNodeDirs, dataNodeDirs);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
} // end numDir loop
}
/*
* This test attempts to upgrade the datanode from federation version -35 to
* upper version This test is for federation cluster with 2 namenodes. It
* changes the layout version and ctime.
*/
public void testFederationClusterUpgradeAfterFederationVersionWithCTimeChange() throws Exception {
File[] baseDirs;
Configuration baseConf = new Configuration();
UpgradeUtilities.initialize(2, baseConf, true);
for (int numDirs = 1; numDirs <= 2; numDirs++) {
conf = new Configuration();
conf.setInt("dfs.datanode.scan.period.hours", -1);
conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
String[] nameNodeDirs = conf.getStrings("dfs.name.dir");
String[] dataNodeDirs = conf.getStrings("dfs.data.dir");
log("DataNode upgrade with federation layout version in current and ctime change", numDirs);
UpgradeUtilities.createFederatedNameNodeStorageDirs(nameNodeDirs);
conf.set(
FSConstants.DFS_FEDERATION_NAMESERVICES,
baseConf.get(FSConstants.DFS_FEDERATION_NAMESERVICES));
try {
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE, false, 2);
baseDirs = UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
for (int i = 0; i < 2; i++) {
UpgradeUtilities.createVersionFile(
DATA_NODE,
baseDirs,
new StorageInfo(
FSConstants.FEDERATION_VERSION,
cluster.getNameNode(i).getNamespaceID(),
cluster.getNameNode(i).versionRequest().getCTime() - 1),
cluster.getNameNode(i).getNamespaceID());
}
cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
for (int i = 0; i < 2; i++) {
checkResult(DATA_NODE, dataNodeDirs, i, false);
}
} finally {
if (cluster != null) cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
}
}
}
/**
* This test attempts to upgrade the NameNode and DataNode under a number of valid and invalid
* conditions.
*/
public void testUpgrade() throws Exception {
File[] baseDirs;
UpgradeUtilities.initialize();
for (int numDirs = 1; numDirs <= 2; numDirs++) {
conf = new Configuration();
conf.setInt("dfs.datanode.scan.period.hours", -1);
conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
String[] nameNodeDirs = conf.getStrings("dfs.name.dir");
String[] dataNodeDirs = conf.getStrings("dfs.data.dir");
log("Normal NameNode upgrade", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
checkResult(NAME_NODE, nameNodeDirs);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("Normal DataNode upgrade", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
checkResult(DATA_NODE, dataNodeDirs);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
log("NameNode upgrade with existing previous dir", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "previous");
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("DataNode upgrade with existing previous dir", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "previous");
startDataNodeShouldFail(StartupOption.REGULAR);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
log("DataNode upgrade with future stored layout version in current", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
baseDirs = UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
UpgradeUtilities.createVersionFile(
DATA_NODE,
baseDirs,
new StorageInfo(
Integer.MIN_VALUE,
UpgradeUtilities.getCurrentNamespaceID(cluster),
UpgradeUtilities.getCurrentFsscTime(cluster)),
cluster.getNameNode().getNamespaceID());
startDataNodeShouldFail(StartupOption.REGULAR);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
log("DataNode upgrade with newer fsscTime in current", numDirs);
UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE);
baseDirs = UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
UpgradeUtilities.createVersionFile(
DATA_NODE,
baseDirs,
new StorageInfo(
UpgradeUtilities.getCurrentLayoutVersion(),
UpgradeUtilities.getCurrentNamespaceID(cluster),
Long.MAX_VALUE),
cluster.getNameNode().getNamespaceID());
startDataNodeShouldFail(StartupOption.REGULAR);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
log("NameNode upgrade with no edits file", numDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
for (File f : baseDirs) {
FileUtil.fullyDelete(new File(f, "edits"));
}
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("NameNode upgrade with no image file", numDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
for (File f : baseDirs) {
FileUtil.fullyDelete(new File(f, "fsimage"));
}
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("NameNode upgrade with corrupt version file", numDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
for (File f : baseDirs) {
UpgradeUtilities.corruptFile(new File(f, "VERSION"));
}
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("NameNode upgrade with old layout version in current", numDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
UpgradeUtilities.createVersionFile(
NAME_NODE,
baseDirs,
new StorageInfo(
Storage.LAST_UPGRADABLE_LAYOUT_VERSION + 1,
UpgradeUtilities.getCurrentNamespaceID(null),
UpgradeUtilities.getCurrentFsscTime(null)),
0);
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("NameNode upgrade with future layout version in current", numDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
UpgradeUtilities.createVersionFile(
NAME_NODE,
baseDirs,
new StorageInfo(
Integer.MIN_VALUE,
UpgradeUtilities.getCurrentNamespaceID(null),
UpgradeUtilities.getCurrentFsscTime(null)),
0);
startNameNodeShouldFail(StartupOption.UPGRADE);
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
log("Normal Datanode upgrade after datanode format", numDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
baseDirs = UpgradeUtilities.createStorageDirs(NAME_NODE, nameNodeDirs, "current");
UpgradeUtilities.createVersionFile(
NAME_NODE,
baseDirs,
new StorageInfo(
FSConstants.LAYOUT_VERSION, UpgradeUtilities.getCurrentNamespaceID(null), 0),
0);
cluster =
new MiniDFSCluster(
0,
conf,
1,
false,
false,
false,
StartupOption.UPGRADE,
null,
null,
null,
false,
false,
1,
false);
cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
} // end numDir loop
}
public void testFederationClusterUpgradeAfterFederationVersionWithTopLevelLayout()
throws Exception {
File[] baseDirs;
Configuration baseConf = new Configuration();
UpgradeUtilities.initialize(2, baseConf, true);
for (int numDirs = 1; numDirs <= 2; numDirs++) {
conf = new Configuration();
conf.setInt("dfs.datanode.scan.period.hours", -1);
conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
String[] nameNodeDirs = conf.getStrings("dfs.name.dir");
String[] dataNodeDirs = conf.getStrings("dfs.data.dir");
log(
"DataNode upgrade with federation layout version in current and no ns level layout version",
numDirs);
UpgradeUtilities.createFederatedNameNodeStorageDirs(nameNodeDirs);
conf.set(
FSConstants.DFS_FEDERATION_NAMESERVICES,
baseConf.get(FSConstants.DFS_FEDERATION_NAMESERVICES));
try {
cluster = new MiniDFSCluster(conf, 0, StartupOption.UPGRADE, false, 2);
baseDirs = UpgradeUtilities.createStorageDirs(DATA_NODE, dataNodeDirs, "current");
for (int i = 0; i < 2; i++) {
UpgradeUtilities.createVersionFile(
DATA_NODE,
baseDirs,
new StorageInfo(
FSConstants.FEDERATION_VERSION,
cluster.getNameNode(i).getNamespaceID(),
cluster.getNameNode(i).versionRequest().getCTime()),
cluster.getNameNode(i).getNamespaceID(),
false);
}
cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
for (int i = 0; i < 2; i++) {
checkResult(DATA_NODE, dataNodeDirs, i, false);
}
// Finalize upgrade.
for (int i = 0; i < 2; i++) {
cluster.getNameNode(i).finalizeUpgrade();
}
cluster.restartDataNodes();
// Wait for datanodes to finalize.
Thread.sleep(10000);
for (int nnIndex = 0; nnIndex < 2; nnIndex++) {
for (int i = 0; i < dataNodeDirs.length; i++) {
File nsBaseDir =
NameSpaceSliceStorage.getNsRoot(
cluster.getNameNode(nnIndex).getNamespaceID(),
new File(dataNodeDirs[i], "current"));
assertFalse(new File(nsBaseDir, "previous").exists());
}
}
} finally {
if (cluster != null) cluster.shutdown();
UpgradeUtilities.createEmptyDirs(nameNodeDirs);
UpgradeUtilities.createEmptyDirs(dataNodeDirs);
}
}
}