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HADOOP-15850. CopyCommitter#concatFileChunks should check that the blocks per chunk is not 0. Contributed by Ted Yu. 

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>
(cherry picked from commit e2cecb681e)
This commit is contained in:
Ted Yu 2018-10-19 13:19:10 -07:00 committed by Wei-Chiu Chuang
parent 04600cf5da
commit a7dd244a49
2 changed files with 7 additions and 5 deletions
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6
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyCommitter.java
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@ -73,6 +73,7 @@ public class CopyCommitter extends FileOutputCommitter {
private boolean overwrite = false;
private boolean targetPathExists = true;
private boolean ignoreFailures = false;
private int blocksPerChunk = 0;
/**
* Create a output committer
@ -83,6 +84,9 @@ public class CopyCommitter extends FileOutputCommitter {
*/
public CopyCommitter(Path outputPath, TaskAttemptContext context) throws IOException {
super(outputPath, context);
blocksPerChunk = context.getConfiguration().getInt(
DistCpOptionSwitch.BLOCKS_PER_CHUNK.getConfigLabel(), 0);
LOG.debug("blocks per chunk {}", blocksPerChunk);
this.taskAttemptContext = context;
}
@ -97,7 +101,9 @@ public class CopyCommitter extends FileOutputCommitter {
ignoreFailures = conf.getBoolean(
DistCpOptionSwitch.IGNORE_FAILURES.getConfigLabel(), false);
if (blocksPerChunk > 0) {
concatFileChunks(conf);
}
super.commitJob(jobContext);

4
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/mapred/TestCopyCommitter.java
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@ -85,10 +85,6 @@ public class TestCopyCommitter {
@Before
public void createMetaFolder() throws IOException {
config.set(DistCpConstants.CONF_LABEL_META_FOLDER, "/meta");
// Unset listing file path since the config is shared by
// multiple tests, and some test doesn't set it, such as
// testNoCommitAction, but the distcp code will check it.
config.set(DistCpConstants.CONF_LABEL_LISTING_FILE_PATH, "");
Path meta = new Path("/meta");
cluster.getFileSystem().mkdirs(meta);
}