Prashant,
> I am new to Hive, I am reading the doc which is available on Apache site > and try to create a correlation between hadoop and Hive. so please help me > to understand this: > > As per my understanding, all the files where unstructured data are stored > in HDFS system across the hadoop cluster. Now when we have to analyze those > data we use Hive. > > Now I have some question which I am not able to get : > > > > 1.When engineer/buisnessuser want to analyze the data, which is available > on any of the file on HDFS cluster, so what is the steps to get the desired > file and analyze the file using hive. > You need to map it with hdfs. With the help of map-reduce, initially you need to create some meta data in h catalog. May be it will help you.. http://hortonworks.com/use-cases/sentiment-analysis-hadoop-example/ 2.Is Hive stores all the data in their tables after the analysis > permanently? > Hive never store any data. > 3.Is Hive itself a database? > It is just a data-access framework. > > > Thanks > > Prashant > > > > ::DISCLAIMER:: > > ---------------------------------------------------------------------------------------------------------------------------------------------------- > > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. > E-mail transmission is not guaranteed to be secure or error-free as > information could be intercepted, corrupted, > lost, destroyed, arrive late or incomplete, or may contain viruses in > transmission. The e mail and its contents > (with or without referred errors) shall therefore not attach any liability > on the originator or HCL or its affiliates. > Views or opinions, if any, presented in this email are solely those of the > author and may not necessarily reflect the > views or opinions of HCL or its affiliates. Any form of reproduction, > dissemination, copying, disclosure, modification, > distribution and / or publication of this message without the prior > written consent of authorized representative of > HCL is strictly prohibited. If you have received this email in error > please delete it and notify the sender immediately. > Before opening any email and/or attachments, please check them for viruses > and other defects. > > > ---------------------------------------------------------------------------------------------------------------------------------------------------- >
