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https://issues.apache.org/jira/browse/HDFS-16977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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WangYuanben updated HDFS-16977:
-------------------------------
Description:
Some pathnames which contains special character(s) may lead to unexpected
results. For example, there is a file named "/foo/file*" in my cluster, created
by "DistributedFileSystem.create(new Path("/foo/file*"))". When I want to
remove it, I type in "hadoop fs -rm /foo/file*" in shell. However, I remove all
the files with the prefix of "/foo/file*" unexpectedly. There are also some
other characters just like '*', such as ' ', '|', '&', etc.
Therefore, it's necessary to restrict the occurrence of these characters in
pathname. A simple but effective way is to forbid assigned characters in
pathname when new file or directory is created.
It is also important to add the same function on the Router model and WebHdfs
model. I will add them as two subtasks later.
was:
Some pathnames which contains special character(s) may lead to unexpected
results. For example, there is a file named "/foo/file*" in my cluster, created
by "DistributedFileSystem.create(new Path("/foo/file*"))". When I want to
remove it, I type in "hadoop fs -rm /foo/file*" in shell. However, I remove all
the files with the prefix of "/foo/file*" unexpectedly. There are also some
other characters just like '*', such as ' ', '|', '&', etc.
Therefore, it's necessary to restrict the occurrence of these characters in
pathname. A simple but effective way is to forbid assigned characters in
pathname when new file or directory is created.
It is also important to add the same function on the Router model and WebHdfs
model. I will add them as two subtasks later.
> Forbid assigned characters in pathname when new file or directory is created.
> -----------------------------------------------------------------------------
>
> Key: HDFS-16977
> URL: https://issues.apache.org/jira/browse/HDFS-16977
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: dfsclient, namenode
> Affects Versions: 3.3.4
> Reporter: WangYuanben
> Priority: Minor
> Labels: pull-request-available
>
> Some pathnames which contains special character(s) may lead to unexpected
> results. For example, there is a file named "/foo/file*" in my cluster,
> created by "DistributedFileSystem.create(new Path("/foo/file*"))". When I
> want to remove it, I type in "hadoop fs -rm /foo/file*" in shell. However, I
> remove all the files with the prefix of "/foo/file*" unexpectedly. There are
> also some other characters just like '*', such as ' ', '|', '&', etc.
>
> Therefore, it's necessary to restrict the occurrence of these characters in
> pathname. A simple but effective way is to forbid assigned characters in
> pathname when new file or directory is created.
>
> It is also important to add the same function on the Router model and WebHdfs
> model. I will add them as two subtasks later.
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