[
https://issues.apache.org/jira/browse/HDFS-14423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16905815#comment-16905815
]
Masatake Iwasaki commented on HDFS-14423:
-----------------------------------------
The result of manual testing:
{noformat}
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -touchz
'webhdfs://localhost/%'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -touchz
'webhdfs://localhost/a+b'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -touchz
'webhdfs://localhost/a%b'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -touchz
'webhdfs://localhost/a;b'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -mkdir
'webhdfs://localhost/c+d'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -mkdir
'webhdfs://localhost/c%d'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -mkdir
'webhdfs://localhost/c;d'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hdfs dfs -ls /
Found 7 items
-rw-r--r-- 1 centos supergroup 0 2019-08-13 13:44 /%
-rw-r--r-- 1 centos supergroup 0 2019-08-13 13:44 /a%b
-rw-r--r-- 1 centos supergroup 0 2019-08-13 13:44 /a+b
-rw-r--r-- 1 centos supergroup 0 2019-08-13 13:44 /a;b
drwxr-xr-x - centos supergroup 0 2019-08-13 13:44 /c%d
drwxr-xr-x - centos supergroup 0 2019-08-13 13:44 /c+d
drwxr-xr-x - centos supergroup 0 2019-08-13 13:44 /c;d
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ echo foobar > foobar.txt
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -rm
'webhdfs://localhost/%'
Deleted webhdfs://localhost/%
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -put
foobar.txt 'webhdfs://localhost/%'
[centos@centos7 hadoop-3.3.0-SNAPSHOT-HDFS-14423]$ bin/hadoop fs -cat
'webhdfs://localhost/%'
foobar
{noformat}
> Percent (%) and plus (+) characters no longer work in WebHDFS
> -------------------------------------------------------------
>
> Key: HDFS-14423
> URL: https://issues.apache.org/jira/browse/HDFS-14423
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 3.2.0, 3.1.2
> Environment: Ubuntu 16.04, but I believe this is irrelevant.
> Reporter: Jing Wang
> Assignee: Masatake Iwasaki
> Priority: Major
> Attachments: HDFS-14423.001.patch, HDFS-14423.002.patch,
> HDFS-14423.003.patch
>
>
> The following commands with percent (%) no longer work starting with version
> 3.1:
> {code:java}
> $ hadoop/bin/hdfs dfs -touchz webhdfs://localhost/%
> $ hadoop/bin/hdfs dfs -cat webhdfs://localhost/%
> cat: URLDecoder: Incomplete trailing escape (%) pattern
> {code}
> Also, plus (+ ) characters get turned into spaces when doing DN operations:
> {code:java}
> $ hadoop/bin/hdfs dfs -touchz webhdfs://localhost/a+b
> $ hadoop/bin/hdfs dfs -mkdir webhdfs://localhost/c+d
> $ hadoop/bin/hdfs dfs -ls /
> Found 4 items
> -rw-r--r-- 1 jing supergroup 0 2019-04-12 11:20 /a b
> drwxr-xr-x - jing supergroup 0 2019-04-12 11:21 /c+d
> {code}
> I can confirm that these commands work correctly on 2.9 and 3.0. Also, the
> usual hdfs:// client works as expected.
> I suspect a relation with HDFS-13176 or HDFS-13582, but I'm not sure what the
> right fix is. Note that Hive uses % to escape special characters in partition
> values, so banning % might not be a good option. For example, Hive will
> create a paths like {{table_name/partition_key=%2F}} when
> {{partition_key='/'}}.
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
