Github user HeartSaVioR commented on a diff in the pull request:
https://github.com/apache/storm/pull/1778#discussion_r90187413
--- Diff: docs/storm-sql-reference.md ---
@@ -1312,4 +1313,23 @@ You can use below as working reference for
`--artifacts` option, and change depe
`org.apache.storm:storm-sql-mongodb:2.0.0-SNAPSHOT,org.apache.storm:storm-mongodb:2.0.0-SNAPSHOT`
-Storing record with preserving fields are not supported for now.
\ No newline at end of file
+Storing record with preserving fields are not supported for now.
+
+#### HDFS
+
+HDFS data source requires below properties to be set:
+
+* `hdfs.file.path`: HDFS file path
+* `hdfs.file.name`: HDFS file name - please refer to
[SimpleFileNameFormat]({{page.git-blob-base}}/external/storm-hdfs/src/main/java/org/apache/storm/hdfs/trident/format/SimpleFileNameFormat.java)
+* `hdfs.rotation.size.kb`: HDFS FileSizeRotationPolicy in KB
+* `hdfs.rotation.time.seconds`: HDFS TimedRotationPolicy in seconds
+
+Please note that `hdfs.rotation.size.kb` and `hdfs.rotation.time.seconds`
only one can be used for hdfs rotation.
+
+And note that `storm-sql-hdfs` requires users to provide `storm-hdfs`.
+You can use below as working reference for `--artifacts` option, and
change dependencies version if really needed:
+
+`org.apache.storm:storm-sql-hdfs:2.0.0-SNAPSHOT,org.apache.storm:storm-hdfs:2.0.0-SNAPSHOT`
+
+Also, hdfs configuration files should be provided.
+You can put the `core-site.xml` and `hdfs-site.xm` into the `conf`
directory.
--- End diff --
typo: `hdfs-site.xm` -> `hdfs-site.xml`.
and do you mean putting files to `conf` dir in Storm installation
directory? Could you explain how they can be referred from workers?
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