Oozie Hive2 Action Failed with Error: “HiveSQLException: Failed to execute session hooks”

If you have an Oozie Hive2 job that fails with below error message randomly, which can be found in Oozie’s server log, located by default under /var/log/oozie: 2018-06-02 09:00:01,103 WARN org.apache.oozie.action.hadoop.Hive2Credentials: SERVER[hlp3058p.oocl.com] USER[dmsa_appln] GROUP[-] TOKEN[] APP[DMSA_CMTX_PCON_ETL_ONLY] JOB[0010548-180302135253124-oozie-oozi-W] ACTION[0010548-180302135253124-oozie-oozi-W@spark-6799] Exception in addtoJobConf org.apache.hive.service.cli.HiveSQLException: Failed to execute session hooks at org.apache.hive.jdbc.Utils.verifySuccess(Utils.java:241) at …

Impala Query Failed with ERROR “AnalysisException: ORDER BY expression not produced by aggregation output”

Recently, I discovered a bug in Impala that when you are using Expression in the ORDER BY clause, the query will fail with below error message: ERROR: AnalysisException: ORDER BY expression not produced by aggregation output (missing from GROUP BY clause?): (CASE WHEN TRUE THEN 1 ELSE a END) Customer …

Oozie Spark Actions Fail with Error “Spark config without ‘=’: –conf”

Currently Oozie provides easy interface for Spark1 jobs via Spark1 action, so that user does not have to embed spark-submit into shell action. However, recently I have discovered an issue in Oozie that it has a bug to parse Spark configurations and incorrectly generated a spark-submit command to submit Spark …

Impala query failed with error “Specified block size is less than configured minimum value”

Currently Impala supports Parquet file format pretty well. For those of you not familiar with Parquet, Parquet is a free and open-source column-oriented data store of the Apache Hadoop ecosystem, and it provides easy and quick access to data with large amount of columns. For more details, you can refer …