I'm trying to run simple AWS Data Pipeline for my POC. The case that I have is following: get data from CSV stored on S3, perform simple hive query on them and put results back to S3. I've created...

I've been running some hive scripts on an aws emr 4.8 cluster with hive 1.0 and tez 0.8. My configurations look like this: SET hive.exec.compress.output=true; SET mapred.output.compression.type=...

What is the difference between Tez engine and Map Reduce engine in Hive and in which process which engine is better to use (for eg:joins, aggregation?)

I can run hive on Tez,But can not see any job in tez ui. And it will drive me Crazy! and the user and name are null in timelineserver the config is blow: tez-site.xml <property> <n...

I want to automate my hive ETL workflow in such a way that I need to execute hive jobs on the basis of execution engine (Tez or MR) because of memory constraints. Would you please help, as I ...

In the Tez paper from Saha et al., the following modular architecture of Hadoop 2 with Tez is shown: Why would someone run Spark/Flink on Tez? What are the advantages? Better utilization of YAR...

I've execute a "group by" query in Hive txt table select day,count(*) from mts_order where source="MTS_REG_ORDER" group by day; but it shows: Error: Error while processing statement: FAILED: E...