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HBASE-13985 Add configuration to skip validating HFile format when bulk loading (Victor Xu)

This commit is contained in:
Andrew Purtell 2015-08-12 18:36:23 -07:00
parent e8b5e922cb
commit ca19f961a2
1 changed files with 36 additions and 12 deletions
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48
hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
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@ -174,6 +174,17 @@ public class LoadIncrementalHFiles extends Configured implements Tool {
*/
private static <TFamily> void visitBulkHFiles(final FileSystem fs, final Path bulkDir,
final BulkHFileVisitor<TFamily> visitor) throws IOException {
visitBulkHFiles(fs, bulkDir, visitor, true);
}
/**
* Iterate over the bulkDir hfiles.
* Skip reference, HFileLink, files starting with "_".
* Check and skip non-valid hfiles by default, or skip this validation by setting
* 'hbase.loadincremental.validate.hfile' to false.
*/
private static <TFamily> void visitBulkHFiles(final FileSystem fs, final Path bulkDir,
final BulkHFileVisitor<TFamily> visitor, final boolean validateHFile) throws IOException {
if (!fs.exists(bulkDir)) {
throw new FileNotFoundException("Bulkload dir " + bulkDir + " not found");
}
@ -214,16 +225,18 @@ public class LoadIncrementalHFiles extends Configured implements Tool {
continue;
}
// Validate HFile Format
try {
if (!HFile.isHFileFormat(fs, hfile)) {
LOG.warn("the file " + hfile + " doesn't seems to be an hfile. skipping");
// Validate HFile Format if needed
if (validateHFile) {
try {
if (!HFile.isHFileFormat(fs, hfile)) {
LOG.warn("the file " + hfile + " doesn't seems to be an hfile. skipping");
continue;
}
} catch (FileNotFoundException e) {
LOG.warn("the file " + hfile + " was removed");
continue;
}
} catch (FileNotFoundException e) {
LOG.warn("the file " + hfile + " was removed");
continue;
}
}
visitor.bulkHFile(family, hfileStatus);
}
@ -257,8 +270,8 @@ public class LoadIncrementalHFiles extends Configured implements Tool {
* Walk the given directory for all HFiles, and return a Queue
* containing all such files.
*/
private void discoverLoadQueue(final Deque<LoadQueueItem> ret, final Path hfofDir)
throws IOException {
private void discoverLoadQueue(final Deque<LoadQueueItem> ret, final Path hfofDir,
final boolean validateHFile) throws IOException {
fs = hfofDir.getFileSystem(getConf());
visitBulkHFiles(fs, hfofDir, new BulkHFileVisitor<byte[]>() {
@Override
@ -275,7 +288,7 @@ public class LoadIncrementalHFiles extends Configured implements Tool {
}
ret.add(new LoadQueueItem(family, hfile.getPath()));
}
});
}, validateHFile);
}
/**
@ -353,7 +366,18 @@ public class LoadIncrementalHFiles extends Configured implements Tool {
// happen in this thread
Deque<LoadQueueItem> queue = new LinkedList<LoadQueueItem>();
try {
discoverLoadQueue(queue, hfofDir);
/*
* Checking hfile format is a time-consuming operation, we should have an option to skip
* this step when bulkloading millions of HFiles. See HBASE-13985.
*/
boolean validateHFile = getConf().getBoolean("hbase.loadincremental.validate.hfile", true);
if(!validateHFile) {
LOG.warn("You are skipping HFiles validation, it might cause some data loss if files " +
"are not correct. If you fail to read data from your table after using this " +
"option, consider removing the files and bulkload again without this option. " +
"See HBASE-13985");
}
discoverLoadQueue(queue, hfofDir, validateHFile);
// check whether there is invalid family name in HFiles to be bulkloaded
Collection<HColumnDescriptor> families = table.getTableDescriptor().getFamilies();
ArrayList<String> familyNames = new ArrayList<String>(families.size());