Nargeshdb commented on a change in pull request #3027:
URL: https://github.com/apache/hadoop/pull/3027#discussion_r638098989
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/aliasmap/InMemoryAliasMap.java
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@@ -320,21 +320,18 @@ static File createSnapshot(InMemoryAliasMap aliasMap)
throws IOException {
private static File getCompressedAliasMap(File aliasMapDir)
throws IOException {
File outCompressedFile = new File(aliasMapDir.getParent(), TAR_NAME);
- BufferedOutputStream bOut = null;
- GzipCompressorOutputStream gzOut = null;
- TarArchiveOutputStream tOut = null;
- try {
- bOut = new BufferedOutputStream(
- Files.newOutputStream(outCompressedFile.toPath()));
- gzOut = new GzipCompressorOutputStream(bOut);
- tOut = new TarArchiveOutputStream(gzOut);
+
+ try (BufferedOutputStream bOut = new BufferedOutputStream(
+ Files.newOutputStream(outCompressedFile.toPath()));
+ GzipCompressorOutputStream gzOut = new
GzipCompressorOutputStream(bOut);
+ TarArchiveOutputStream tOut = new TarArchiveOutputStream(gzOut)){
+
addFileToTarGzRecursively(tOut, aliasMapDir, "", new Configuration());
- } finally {
if (tOut != null) {
tOut.finish();
}
Review comment:
If we define `tOut` in try-with-resources block, then we don't have
access to `tOut` in finally block. I checked `close()` method in
`TarArchiveOutputStream` and `finish()` is called there so I think we don't
need to call `finish` on `tOut`.
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