suneet-s commented on a change in pull request #9171: Doc update for the new
input source and the new input format
URL: https://github.com/apache/druid/pull/9171#discussion_r367137986
##########
File path: docs/development/extensions-core/hdfs.md
##########
@@ -36,49 +36,105 @@ To use this Apache Druid extension, make sure to
[include](../../development/ext
|`druid.hadoop.security.kerberos.principal`|`dr...@example.com`| Principal
user name |empty|
|`druid.hadoop.security.kerberos.keytab`|`/etc/security/keytabs/druid.headlessUser.keytab`|Path
to keytab file|empty|
-If you are using the Hadoop indexer, set your output directory to be a
location on Hadoop and it will work.
+Besides the above settings, you also need to include all Hadoop configuration
files (such as `core-site.xml`, `hdfs-site.xml`)
+in the Druid classpath. One way to do this is copying all those files under
`${DRUID_HOME}/conf/_common`.
+
+If you are using the Hadoop ingestion, set your output directory to be a
location on Hadoop and it will work.
If you want to eagerly authenticate against a secured hadoop/hdfs cluster you
must set `druid.hadoop.security.kerberos.principal` and
`druid.hadoop.security.kerberos.keytab`, this is an alternative to the cron job
method that runs `kinit` command periodically.
-### Configuration for Google Cloud Storage
+### Configuration for Cloud Storage
+
+You can also use the AWS S3 or the Google Cloud Storage as the deep storage
via HDFS.
+
+#### Configuration for AWS S3
Review comment:
Do I need to add the s3 extension for this support or is it bundled with the
hdfs extension somehow?
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