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HDFS-8368. Erasure Coding: DFS opening a non-existent file need to be handled properly. Contributed by Rakesh R.

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Zhe Zhang 2015-05-12 14:31:28 -07:00 committed by Zhe Zhang
parent 97a2396af6
commit 54d2827522
2 changed files with 10 additions and 5 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-EC-7285.txt
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@ -201,3 +201,6 @@
HDFS-8372. Erasure coding: compute storage type quotas for striped files,
to be consistent with HDFS-8327. (Zhe Zhang via jing9)
HDFS-8368. Erasure Coding: DFS opening a non-existent file need to be
handled properly (Rakesh R via zhz)

12
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
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@ -1193,12 +1193,14 @@ public DFSInputStream open(String src, int buffersize, boolean verifyChecksum)
// Get block info from namenode
TraceScope scope = getPathTraceScope("newDFSInputStream", src);
try {
ECSchema schema = getFileInfo(src).getECSchema();
if (schema != null) {
return new DFSStripedInputStream(this, src, verifyChecksum, schema);
} else {
return new DFSInputStream(this, src, verifyChecksum);
HdfsFileStatus fileInfo = getFileInfo(src);
if (fileInfo != null) {
ECSchema schema = fileInfo.getECSchema();
if (schema != null) {
return new DFSStripedInputStream(this, src, verifyChecksum, schema);
}
}
return new DFSInputStream(this, src, verifyChecksum);
} finally {
scope.close();
}