Jing Wang created HDFS-14423:
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Summary: Percent (%) 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: 3.1.2, 3.2.0
Environment: Ubuntu 16.04, but I believe this is irrelevant.
Reporter: Jing Wang
The following commands no longer work starting with version 3.1:
{code}
$ hadoop/bin/hdfs dfs -touchz webhdfs://localhost/%
$ hadoop/bin/hdfs dfs -cat webhdfs://localhost/%
cat: URLDecoder: Incomplete trailing escape (%) pattern
{code}
I can confirm that they 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='/'}}.
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