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Helen Holzbaur

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  • Replace Expired System Token

      Problem System token has expired so Okera cluster is not functioning Answer Replace the expired system token as follows: $ cd <PATH TO okctl UTILITY>$ ./okctl tokens create okera_system_user admi...

  • Error: "Task's HMAC doesn't match the one used to encrypt it."

      Problem Jobs are failing with the error "Task's HMAC doesn't match the one used to encrypt it."  This is across multiple clients and tables. Solution The planner and worker applications are depen...

  • DDL fails: Failed to load metadata for table

      Problem DDL fails to load metadata. Planner log shows an error similar to AnalysisException: Failed to load metadata for table: DB.TB\nCAUSED BY: TableLoadingException: Failed to load metadata fo...

  • Okera Response to CVE-2021-44228

    Updates Mon Dec 20 19:36 EST 2021 Final update: We have now released version 2.8.2 in addition to versions 2.3.10, 2.5.9, 2.6.7, and 2.7.7.  These releases upgrade log4j to version 2.16. We recomme...

  • Show Full Spark Query in Okera Audit Logs

      Problem When running a query in Databricks, the full Spark query does not appear in the Okera audit logs. Answer There are two configuration parameters that are required. Server: audit_requ...

  • Presto Client and JDK 11 with Okera Presto Endpoint

      Problem Presto client performance has degraded after upgrade. Answer Third party BI tools often bundle the JDK with their product. If the upgraded client now includes JDK 11.0 or higher, the HTTP...

  • Processing Audit Logs

      Problem We would like to identify the usage pattern for the Okera objects like databases, tables, and views for given period of time and export them in csv format. Answer The Okera docs (https://...

  • Could not execute ddl...because its length is longer than the max supported length (64)

      Problem DDL operations on table generate an error message. code=INVALID_REQUEST msg=Could not execute ddl. detail=AnalysisException: Cannot grant to table '<DB>.<TB>  because its length is longer...

  • Binary Data Types stored as String

      Problem User creates a table with a column defines as type BINARY data type, but describe formatted displays the column as type STRING Answer BINARY and STRING are aliases so they are stored the ...

  • pyOkera returns 0 rows

      Problem We are using cerebro tables to perform analysis on our data lake. I am using python to access the data; however, my python script returns no data. I successfully generate the token and lo...