/**
* 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));
}
}
}
/**
* 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());
}
}