How to dump an HBase table?
Let’s learn how to dump an HBase table. The most accurate or helpful solution is served by Stack Overflow.
There are ten answers to this question.
Best solution
i need to take a dump of one table in HBase and need it in a text file/csv format? I looked for scan , export and get commands in HBase shell , but it doesnt work . Need help!
Answer:
There are a lot of ways to get data out of an HBase table like running the export map/reduce job. You...
visit.paridhi at Stack Overflow Mark as irrelevant Undo
Other solutions
Jahangir Mohammed at Quora Mark as irrelevant Undo
I want to save entries either in a set of tables or none of any. Database provides transaction for that. Is there anything available for HBase also? Has anyone tried to implement that open source or by changing into HBase code?
Answer:
Check our opensourced transaction libarary: "haeinsa" It is multi-row, multi-table transaction...
James Lee at Quora Mark as irrelevant Undo
I have an external table in Hive with 3 years of data. Hive works really well for me in cases of aggregation and all but in a lot of cases I need to search for some specific rows in the data and hive is very slow in that case if I don't specify any partition...
Afroz Mohammad at Quora Mark as irrelevant Undo
is there any way to do it from hbase shell ?
Answer:
Your term "last transaction" is actually vague. In a technical sense, there is no relation...
Nicolas Spiegelberg at Quora Mark as irrelevant Undo
What are some good practices to get the same benefits from a EAV relational database (ease of computing things) with scalable features of Hbase? Map-Reduce is one, but what else can do it faster?
Answer:
EAV is not a great model for a relational or pseudo-relational database. The implementation of EAV on...
Jeff Nemecek at Quora Mark as irrelevant Undo
I am doing some research into system structures of operating systems and would like to dump the contents of the Windows XP boot sector and master file table to a file where I can look ...show more
Answer:
Take a look at this web page. They have a list of files where the boot code is backed up in the Windows...
J57AZ5B5VOWEKFNZ55I7PMZ22U at Yahoo! Answers Mark as irrelevant Undo
The speakers from Facebook and StumbleUpon at Hadoop World 2011 all recommended limiting a table's number of regions to a manageable number (~20). However I can't find any mention to such a configuration on the docs. I only found this open JIRA - https...
Answer:
There is no way to set a fixed number of regions. But you can control the number of regions by changing...
Erik-Jan van Baaren at Quora Mark as irrelevant Undo
Hi, We have the following use case: · Store telecom CDR data on a per subscriber basis · data is time series based and every record is per-subscriber based · comes in round the clock · the expected volume of data would...
Answer:
Think below two tips should help: 1. Prefix subscriber id with salt. 2. Pre-splitting.(Disable automatic...
Jahangir Mohammed at Quora Mark as irrelevant Undo
I am currently working on a system where we need to store millions of events on millions of users. Right now we are using HBase, but storing all of our data using JSON. The row and column keys are all randomly generated UUIDs, so there is no way to...
Answer:
Optimizing the schema your using is highly dependent on the use case for the application. Are you pulling...
Alexander Daw at Quora Mark as irrelevant Undo
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