Hadoop Cloudera RCP encryption

[oskrandres]

Hi SAS Community,

We are using CDH 5.8 and SAS GRID (Miner, OA, ETS, OR and SAS Studio), GRID is in SAS 9.4_M3 with Access to Impala, when the team enable RPC encryption in Cloudera SAS is unable to read or write in Hadoop. We want to know if SAS 9.4_M5 supports RPC encryption or the problem is Access to Impala and its necessary change/add Access to Hadoop

Thanks in advance

[JBailey]

Hi @oskrandres 

Hopefully, you have found a solution to this issue. SAS began support for Sentry (which I think is what you are referencing here) at SAS 9.4M5. You may need to upgrade your SAS environment to get this to work.

The following information will help others, and perhaps you.

SAS' bulk load functionality may be causing issues with write/read. Impala bulk load uses the same techniques as SAS/ACCESS Interface to Hadoop; direct writes to HDFS. Reading can also use direct HDFS access. To make use of these features, HDFS port(s) (8020?) must be open, and users must have read and write permissions to /tmp (HDFS file system). See the HDFS_TEMPDIR= option in the SAS/ACCESS Interface to Impala doc.

Take a look at the doc. It may help shine some light on this:

https://go.documentation.sas.com/?docsetId=acreldb&docsetTarget=p0qwbige1lq1p0n17mifkd4na4pl.htm&doc...

Also, ensure that your SAS administrator has applied all available SAS Hot Fixes. Once again, support for this began at SAS 9.4M5.

Hope this helps,
Jeff