Eric Lin created IMPALA-8557:
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Summary: Impala on ABFS failed with error
"IllegalArgumentException: ABFS does not allow files or directories to end with
a dot."
Key: IMPALA-8557
URL: https://issues.apache.org/jira/browse/IMPALA-8557
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 3.2.0
Reporter: Eric Lin
HDFS introduced below feature to stop users from creating a file that ends with
"." on ABFS:
https://issues.apache.org/jira/browse/HADOOP-15860
As a result of this change, Impala now writes to ABFS fails with such error.
I can see that it generates temp file using this format "$0.$1.$2":
https://github.com/cloudera/Impala/blob/cdh6.2.0/be/src/exec/hdfs-table-sink.cc#L329
$2 is the file extension and will be empty if it is TEXT file format:
https://github.com/cloudera/Impala/blob/cdh6.2.0/be/src/exec/hdfs-text-table-writer.cc#L65
Since HADOOP-15860 was backported into CDH6.2, it is currently only affecting
6.2 and works in older versions.
There is no way to override this empty file extension so no workaround is
possible, unless user choose another file format.
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