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Can I Use Impala To Query Data Already Loaded Into Hive And Hbase? |
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Answer» There are no additional steps to allow Impala to query tables managed by Hive, whether they are stored in HDFS or HBASE. Make sure that Impala is configured to access the Hive metastore correctly and you should be READY to go. Keep in mind that impalad, by default, RUNS as the impala user, so you might NEED to adjust some file permissions DEPENDING on how strict your permissions are currently. There are no additional steps to allow Impala to query tables managed by Hive, whether they are stored in HDFS or HBase. Make sure that Impala is configured to access the Hive metastore correctly and you should be ready to go. Keep in mind that impalad, by default, runs as the impala user, so you might need to adjust some file permissions depending on how strict your permissions are currently. |
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