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From weic...@apache.org
Subject hadoop git commit: HADOOP-14557. Document HADOOP-8143 (Change distcp to have -pb on by default). Contributed by Bharat Viswanadham.
Date Fri, 21 Jul 2017 01:23:53 GMT
Repository: hadoop
Updated Branches:
  refs/heads/trunk 8c2c81283 -> 44350fdf4


HADOOP-14557. Document HADOOP-8143 (Change distcp to have -pb on by default). Contributed
by Bharat Viswanadham.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/44350fdf
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/44350fdf
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/44350fdf

Branch: refs/heads/trunk
Commit: 44350fdf495f5cf1bb15b1fe6f6e9587d3de0a59
Parents: 8c2c812
Author: Wei-Chiu Chuang <weichiu@apache.org>
Authored: Thu Jul 20 18:23:13 2017 -0700
Committer: Wei-Chiu Chuang <weichiu@apache.org>
Committed: Thu Jul 20 18:23:13 2017 -0700

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 hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/44350fdf/hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm
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diff --git a/hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm b/hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm
index ee0a93e..925b24e 100644
--- a/hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm
+++ b/hadoop-tools/hadoop-distcp/src/site/markdown/DistCp.md.vm
@@ -217,7 +217,7 @@ Command Line Options
 
 Flag              | Description                          | Notes
 ----------------- | ------------------------------------ | --------
-`-p[rbugpcaxt]` | Preserve r: replication number b: block size u: user g: group p: permission
c: checksum-type a: ACL x: XAttr t: timestamp | When `-update` is specified, status updates
will **not** be synchronized unless the file sizes also differ (i.e. unless the file is re-created).
If -pa is specified, DistCp preserves the permissions also because ACLs are a super-set of
permissions. The option -pr is only valid if both source and target directory are not erasure
coded.
+`-p[rbugpcaxt]` | Preserve r: replication number b: block size u: user g: group p: permission
c: checksum-type a: ACL x: XAttr t: timestamp | When `-update` is specified, status updates
will **not** be synchronized unless the file sizes also differ (i.e. unless the file is re-created).
If -pa is specified, DistCp preserves the permissions also because ACLs are a super-set of
permissions. The option -pr is only valid if both source and target directory are not erasure
coded. **Note:** If -p option's are not specified, then by default block size is preserved.
 `-i` | Ignore failures | As explained in the Appendix, this option will keep more accurate
statistics about the copy than the default case. It also preserves logs from failed copies,
which can be valuable for debugging. Finally, a failing map will not cause the job to fail
before all splits are attempted.
 `-log <logdir>` | Write logs to \<logdir\> | DistCp keeps logs of each file it
attempts to copy as map output. If a map fails, the log output will not be retained if it
is re-executed.
 `-m <num_maps>` | Maximum number of simultaneous copies | Specify the number of maps
to copy data. Note that more maps may not necessarily improve throughput.


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