haohao0103 commented on code in PR #5064:
URL: https://github.com/apache/hbase/pull/5064#discussion_r1125421633
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hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSUtils.java:
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@@ -198,27 +197,20 @@ public static FSDataOutputStream create(Configuration
conf, FileSystem fs, Path
if (fs instanceof HFileSystem) {
FileSystem backingFs = ((HFileSystem) fs).getBackingFs();
if (backingFs instanceof DistributedFileSystem) {
- // Try to use the favoredNodes version via reflection to allow
backwards-
- // compatibility.
short replication =
Short.parseShort(conf.get(ColumnFamilyDescriptorBuilder.DFS_REPLICATION,
String.valueOf(ColumnFamilyDescriptorBuilder.DEFAULT_DFS_REPLICATION)));
- try {
- return (FSDataOutputStream) (DistributedFileSystem.class
- .getDeclaredMethod("create", Path.class, FsPermission.class,
boolean.class, int.class,
- short.class, long.class, Progressable.class,
InetSocketAddress[].class)
- .invoke(backingFs, path, perm, true,
CommonFSUtils.getDefaultBufferSize(backingFs),
- replication > 0 ? replication :
CommonFSUtils.getDefaultReplication(backingFs, path),
- CommonFSUtils.getDefaultBlockSize(backingFs, path), null,
favoredNodes));
- } catch (InvocationTargetException ite) {
- // Function was properly called, but threw it's own exception.
- throw new IOException(ite.getCause());
- } catch (NoSuchMethodException e) {
- LOG.debug("DFS Client does not support most favored nodes create;
using default create");
- LOG.trace("Ignoring; use default create", e);
- } catch (IllegalArgumentException | SecurityException |
IllegalAccessException e) {
- LOG.debug("Ignoring (most likely Reflection related exception) " +
e);
+ DistributedFileSystem.HdfsDataOutputStreamBuilder builder =
+ ((DistributedFileSystem)
backingFs).createFile(path).recursive().permission(perm).create()
+
.overwrite(true).bufferSize(CommonFSUtils.getDefaultBufferSize(backingFs))
Review Comment:
yes, for some properties that use default values we do not need to call
methods .
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