Why for metastore RDBMS is used?

0 votes

Hi,

I am learning hive and got a query that a RDBMS is used as a metastore in the hive, where hive is not an RDBMS. Then why for metadata RDBMS is used? Can anyone explain this?

May 10 in Big Data Hadoop by sunny
30 views

1 answer to this question.

0 votes

Hey,

Yes, it is correct that Hive is not an RDBMS, but because the response from the RDBMS is much less that is latency is much less compared to Hadoop HDFS. For syntax and semantic analysis or validation for your query, even in the execution engine, it contains the metastore before executing your queries, so all these responses to speed up the processing between these components an RDBMS is used as a metastore here in Hive.

answered May 10 by Gitika
• 25,340 points

Related Questions In Big Data Hadoop

0 votes
1 answer
0 votes
1 answer

What Distributed Cache is actually used for in Hadoop?

Basically distributed cache allows you to cache ...READ MORE

answered Apr 2, 2018 in Big Data Hadoop by Ashish
• 2,630 points
155 views
0 votes
1 answer

Why Apache Pig is used instead of Hadoop?

As you know writing mapreduce programs in ...READ MORE

answered May 7, 2018 in Big Data Hadoop by Ashish
• 2,630 points
220 views
0 votes
2 answers

How does Hadoop/Spark is used for building large analytics report?

The best possible framework for this task ...READ MORE

answered Aug 7, 2018 in Big Data Hadoop by kurt_cobain
• 9,240 points
152 views
0 votes
1 answer

What is Metastore in Hive?

It stores metadata for Hive tables (like their schema ...READ MORE

answered Dec 20, 2018 in Big Data Hadoop by Frankie
• 9,810 points
102 views
0 votes
1 answer

What is metastore in Hive architecture?

Hey, Hive chooses respective database servers to store ...READ MORE

answered May 10 in Big Data Hadoop by Gitika
• 25,340 points
40 views
0 votes
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 10,670 points
2,766 views
0 votes
10 answers

hadoop fs -put command?

put syntax: put <localSrc> <dest> copy syntax: copyFr ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Aditya
13,691 views
0 votes
1 answer

Why CLI is used in Scoop?

CLI is Command Line Client which is ...READ MORE

answered Apr 11 in Big Data Hadoop by Gitika
• 25,340 points
27 views
0 votes
1 answer

Why tuple keywords is used in pig?

Hey, A tuple is a set of field, ...READ MORE

answered May 6 in Big Data Hadoop by Gitika
• 25,340 points
28 views