[ https://issues.apache.org/jira/browse/ARROW-13141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alessandro Molina updated ARROW-13141: -------------------------------------- Fix Version/s: (was: 5.0.0) 6.0.0 > [C++][Python] HadoopFileSystem: automatically set CLASSPATH based on > HADOOP_HOME env variable? > ---------------------------------------------------------------------------------------------- > > Key: ARROW-13141 > URL: https://issues.apache.org/jira/browse/ARROW-13141 > Project: Apache Arrow > Issue Type: Improvement > Components: C++, Python > Reporter: Joris Van den Bossche > Assignee: Joris Van den Bossche > Priority: Major > Labels: filesystem, hdfs, pull-request-available > Fix For: 6.0.0 > > Time Spent: 0.5h > Remaining Estimate: 0h > > In the "legacy" python-specific HadoopFileSystem implementation, we have a > {{_maybe_set_hadoop_classpath}} function which has some logic to set the > {{CLASSPATH}} environment variable based on {{HADOOP_HOME}} or the hadoop > executable: > https://github.com/apache/arrow/blob/c43fab3d621bedef15470a1be43570be2026af20/python/pyarrow/hdfs.py#L134-L149 > This is also mentioned in the documentation of the new HadoopFileSystem > (https://arrow.apache.org/docs/python/filesystems.html#hadoop-file-system-hdfs > ): > > If CLASSPATH is not set, then it will be set automatically if the hadoop > > executable is in your system path, or if HADOOP_HOME is set. > However, this sentence was probably simply copied over from the docs about > the legacy filesystem. And for the new HadoopFileSystem implementation, we > don't have this logic to automatically set up {{CLASSPATH}}. > Do we want to add this logic to the new implementation as well? (in cython, > or actually in C++?) Or if not, we should update the docs to clarify that > {{CLASSPATH}} is actually required. > cc [~apitrou] -- This message was sent by Atlassian Jira (v8.3.4#803005)