John Doe created HADOOP-15417:
---------------------------------
Summary: retrieveBlock hangs when the configuration file is
corrupted
Key: HADOOP-15417
URL: https://issues.apache.org/jira/browse/HADOOP-15417
Project: Hadoop Common
Issue Type: Bug
Components: common
Affects Versions: 0.23.0
Reporter: John Doe
The bufferSize is read from the configuration files.
When the configuration file is corrupted, i.e.,bufferSize=0, the numRead will
always be 0, making the while loop's condition always true, hanging
Jets3tFileSystemStore.retrieveBlock() endlessly.
Here is the snippet of the code.
{code:java}
private int bufferSize;
this.bufferSize = conf.getInt(
S3FileSystemConfigKeys.S3_STREAM_BUFFER_SIZE_KEY,
S3FileSystemConfigKeys.S3_STREAM_BUFFER_SIZE_DEFAULT);
public File retrieveBlock(Block block, long byteRangeStart)
throws IOException {
File fileBlock = null;
InputStream in = null;
OutputStream out = null;
try {
fileBlock = newBackupFile();
in = get(blockToKey(block), byteRangeStart);
out = new BufferedOutputStream(new FileOutputStream(fileBlock));
byte[] buf = new byte[bufferSize];
int numRead;
while ((numRead = in.read(buf)) >= 0) {
out.write(buf, 0, numRead);
}
return fileBlock;
} catch (IOException e) {
...
} finally {
...
}
}
{code}
Similar case: [Hadoop-15415|https://issues.apache.org/jira/browse/HADOOP-15415].
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