[IMPALA-12291] - impala checks hdfs ranger policy

[HalimKim]

Related Issue

• https://issues.apache.org/jira/projects/IMPALA/issues/IMPALA-12291

Description

• When HDFS is ranger enabled, current impala fe doesn't check ranger policy but hadoop inode permission
• New feature adds getAvailableAccessLevel() method ranger check code using Hadoop API
• Add one more catch in getTExecRequest() method to check AnalysisException

Test

• Manual Test done
  • Distribute impala fe jar for impalad and catalogd
  • Enable HDFS Ranger Plugin.
  • Give impala Allow condition for ranger hdfs policy and check insert query - Insert Success
  • Give impala Deny condition for ranger hdfs policy and check insert query - Insert Fail

[MikaelSmith]

Hi @HalimKim, thanks for your contribution! We don't use pull requests in Apache Impala, we use Gerrit instead: https://gerrit.cloudera.org/. https://cwiki.apache.org/confluence/display/IMPALA/Using+Gerrit+to+submit+and+review+patches has a walkthrough for uploading patches for review.

Thanks, Michael.

[HalimKim]

@MikaelSmith
Thanks, I just have uploaded the patch on gerrit.
Walkthrough was really helpful.