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YARN-9837. Fixed reading YARN Service JSON spec file larger than 128k. 

Contributed by Tarun Parimi
This commit is contained in:
Eric Yang 2019-09-17 13:13:35 -04:00
parent cab81f7f5f
commit dae22c962d
1 changed files with 2 additions and 12 deletions
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14
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/utils/JsonSerDeser.java
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@ -20,7 +20,6 @@ package org.apache.hadoop.yarn.service.utils;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
@ -34,7 +33,6 @@ import org.codehaus.jackson.map.SerializationConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.EOFException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
@ -177,17 +175,9 @@ public class JsonSerDeser<T> {
* @throws JsonParseException parse problems
* @throws JsonMappingException O/J mapping problems
*/
public T load(FileSystem fs, Path path)
throws IOException, JsonParseException, JsonMappingException {
FileStatus status = fs.getFileStatus(path);
long len = status.getLen();
byte[] b = new byte[(int) len];
public T load(FileSystem fs, Path path) throws IOException {
FSDataInputStream dataInputStream = fs.open(path);
int count = dataInputStream.read(b);
if (count != len) {
throw new EOFException("Read of " + path +" finished prematurely");
}
return fromBytes(b);
return fromStream(dataInputStream);
}