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HADOOP-12831. LocalFS/FSOutputSummer NPEs in constructor if bytes per checksum set to 0 (Mingliang Liu via gtcarrera9) 

(cherry-picked from commit 7545ce6636)
This commit is contained in:
Li Lu 2016-02-27 21:59:03 -08:00
parent 4d870b1faa
commit 090f74c741
3 changed files with 30 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -127,6 +127,9 @@ Release 2.8.0 - UNRELEASED
IMPROVEMENTS
HADOOP-12831. LocalFS/FSOutputSummer NPEs in constructor if bytes per checksum
set to 0 (Mingliang Liu via gtcarrera9)
HADOOP-12458. Retries is typoed to spell Retires in parts of
hadoop-yarn and hadoop-common
(Neelesh Srinivas Salian via harsh)

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/ChecksumFileSystem.java
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@ -25,6 +25,7 @@ import java.io.InputStream;
import java.nio.channels.ClosedChannelException;
import java.util.Arrays;
import com.google.common.base.Preconditions;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
@ -61,6 +62,9 @@ public abstract class ChecksumFileSystem extends FilterFileSystem {
if (conf != null) {
bytesPerChecksum = conf.getInt(LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_KEY,
LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_DEFAULT);
Preconditions.checkState(bytesPerChecksum > 0,
"bytes per checksum should be positive but was %s",
bytesPerChecksum);
}
}

23
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestChecksumFileSystem.java
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@ -228,6 +228,29 @@ public class TestChecksumFileSystem {
}
@Test
public void testSetConf() {
Configuration conf = new Configuration();
conf.setInt(LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_KEY, 0);
try {
localFs.setConf(conf);
fail("Should have failed because zero bytes per checksum is invalid");
} catch (IllegalStateException ignored) {
}
conf.setInt(LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_KEY, -1);
try {
localFs.setConf(conf);
fail("Should have failed because negative bytes per checksum is invalid");
} catch (IllegalStateException ignored) {
}
conf.setInt(LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_KEY, 512);
localFs.setConf(conf);
}
void verifyRename(Path srcPath, Path dstPath, boolean dstIsDir)
throws Exception {
localFs.delete(srcPath,true);