Uploaded image for project: 'Sentry'
  1. Sentry
  2. SENTRY-1270

Improve error handling - Database with malformed URI causes NPE in HMS plugin during DDL

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.7.0
    • Fix Version/s: 1.8.0, 2.0.0
    • Component/s: None
    • Labels:
      None

      Description

      Exception:

      Caused by: java.lang.NullPointerException
              at org.apache.sentry.hdfs.MetastorePlugin.applyLocal(MetastorePlugin.java:336)
              at org.apache.sentry.hdfs.MetastorePlugin.processUpdate(MetastorePlugin.java:364)
              at org.apache.sentry.hdfs.MetastorePlugin.notifySentryAndApplyLocal(MetastorePlugin.java:341)
              at org.apache.sentry.hdfs.MetastorePlugin.renameAuthzObject(MetastorePlugin.java:292)
              at org.apache.sentry.binding.metastore.SentryMetastorePostEventListener.renameSentryTablePrivilege(SentryMetastorePostEventListener.java:336)
              at org.apache.sentry.binding.metastore.SentryMetastorePostEventListener.onAlterTable(SentryMetastorePostEventListener.java:194)
              at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.alter_table_core(HiveMetaStore.java:3439)
              ... 21 more
      

      When looking in the HMS database we found:

      SELECT "NAME", "DB_LOCATION_URI" FROM "DBS" WHERE NOT "DB_LOCATION_URI" LIKE 'hdfs://%/%';
      NAME | DB_LOCATION_URI 
      -----------+--------------------
      db_name | hdfs://nameservice1
      (1 row)
      

      Fixed by manually updating the HMS DB:

      UPDATE DBS
      SET DB_LOCATION_URI='hdfs://nameservice1/user/hive/warehouse/db_name.db'
      WHERE DB_ID=12345;
      

      We should handle this more gracefully in Sentry.

        Attachments

        1. SENTRY-1270.1.patch
          2 kB
          Sravya Tirukkovalur
        2. SENTRY-1270.0.patch
          2 kB
          Sravya Tirukkovalur

          Issue Links

            Activity

              People

              • Assignee:
                sravya Sravya Tirukkovalur
                Reporter:
                lskuff Lenni Kuff
              • Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: