https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333270#M231398 <P>Thank you very much for your answer, but another question is that I need <STRONG>a clear evidence</STRONG> <STRONG>to convince customers</STRONG> that HDFS is necessary when adding Apache sentry service. Can you help find the relevant documents here?</P><P>Sorry for the inconvenience.</P> Thu, 06 Jan 2022 01:57:23 GMT wenzf 2022-01-06T01:57:23Z https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333199#M231378 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Sentry.png" style="width: 999px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/33099iE20C9D51D666F6DD/image-size/large?v=v2&amp;px=999" role="button" title="Sentry.png" alt="Sentry.png" /></span></P><P>When CDH cluster adds sentry service, an error appears in the above picture, indicating that HDFS or core configuration is required (but this service also needs to be configured with core.defaultFs). I want to know whether HDFS is generally necessary for sentry service, but I don't see relevant &nbsp;instructions (Prerequisites) on the official website (<A href="https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/sg_sentry_before_you_install.html" target="_blank">Before You Install Sentry | 6.3.x | Cloudera Documentation</A>). Can anyone help provide relevant documents?&nbsp; because I need to convince customers that HDFS is necessary.&nbsp; Thankssss!!!</P> Wed, 05 Jan 2022 03:26:10 GMT https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333199#M231378 wenzf 2022-01-05T03:26:10Z https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333236#M231389 <P><a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/94679">@wenzf</a>&nbsp;Yes, Sentry Stores some info in HDFS I believe. Take a look of below doc which talks about architecture.&nbsp;</P><P><A href="https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/sg_sentry_overview.html#sentry_overview" target="_blank">https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/sg_sentry_overview.html#sentry_overview</A></P><P><A href="https://cwiki.apache.org/confluence/display/SENTRY/Sentry+Tutorial" target="_blank">https://cwiki.apache.org/confluence/display/SENTRY/Sentry+Tutorial</A></P> Wed, 05 Jan 2022 15:01:10 GMT https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333236#M231389 GangWar 2022-01-05T15:01:10Z https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333270#M231398 <P>Thank you very much for your answer, but another question is that I need <STRONG>a clear evidence</STRONG> <STRONG>to convince customers</STRONG> that HDFS is necessary when adding Apache sentry service. Can you help find the relevant documents here?</P><P>Sorry for the inconvenience.</P> Thu, 06 Jan 2022 01:57:23 GMT https://community.cloudera.com/t5/Support-Questions/Is-it-necessary-to-install-HDFS-cluster-in-advance-to-add/m-p/333270#M231398 wenzf 2022-01-06T01:57:23Z