Steve Loughran created HADOOP-16468:
---------------------------------------
Summary: S3AFileSystem.getContentSummary() to use
listFiles(recursive)
Key: HADOOP-16468
URL: https://issues.apache.org/jira/browse/HADOOP-16468
Project: Hadoop Common
Issue Type: Sub-task
Components: fs, fs/s3
Affects Versions: 3.2.0
Reporter: Steve Loughran
HIVE-22054 discusses how they use getContentSummary to see if a directory is
empty.
This is implemented in FileSystem as a recursive treewalk, with all the costs
there.
Hive is moving off it; once that is in it won't be so much of an issue. But if
we wanted to speed up older versions of Hive, we could move the operation to
using a flat list
That would give us the file size rapidly; the directory count would have to be
worked out by tracking parent dirs of all paths (and all entries ending with
/), and adding them up
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
