This is solved. Used Writable instead of LongWritable or NullWritable in
Mapper input key type.
Thanks
Suraj Nayak
On 19-Mar-2015 9:48 PM, Suraj Nayak snay...@gmail.com wrote:
Is this related to https://issues.apache.org/jira/browse/HIVE-4329 ? Is
there a workaround?
On Thu, Mar 19, 2015 at
Your quotation marks around the location string seem to be wrong
Daniel
On 26 במרץ 2015, at 22:10, bitsofinfo bitsofinf...@gmail.com wrote:
Hi,
What is wrong with this query? I am reading the docs and it appears that
this should work no?
INSERT OVERWRITE DIRECTORY
Sure Daniel. Apologies.
Mich Talebzadeh
http://talebzadehmich.wordpress.com
Publications due shortly:
Creating in-memory Data Grid for Trading Systems with Oracle TimesTen and
Coherence Cache
NOTE: The information in this email is proprietary and confidential. This
message is
Hi,
I am very new to hive optimiser
Here I have a table with 4 million rows imported from Oracle via sqoop/hive. In
this table object_id column is unique. Oracle table has primary key constraint
on object_id column which is basically a unique B-tree index.
I do a very simple query to
Hi,
I was trying to create External table in hive.
I used create external table ext_2 (id string,name string) row format
delimited fields terminated by ',' stored as textfile command.
This command created a table with external property as I checked by using
describe formatted ext_1 command.
I have some problems when I insert data with order by .
The data is non-uniform ， I changed the configuration below
1. set hive.optimize.sampling.orderby=true;
2. set hive.optimize.sampling.orderby.number=10;
3.set mapred.reduce.tasks=100;
but when the sampling had done ,
Hive does not manipulate data by its own, if your processing logic needs
the trimming of spaces then you can provide that in query.
On Fri, Mar 27, 2015 at 1:17 PM, @Sanjiv Singh sanjiv.is...@gmail.com
wrote:
Hi All,
I am getting into Hive and learning hive. I have customer table in
Dear All,
I install hadoop 2.6, hbase 1.0 and hive 1.1 in ubuntu and they are running
normally. But, I integrate hive with hbase and execute the script below,
hive CREATE TABLE hbase_table_1(key int, value string) STORED BY
'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH
Hi Mich,
For the future, please refrain from hijacking threads and ask your questions in
a separate one.
Thanks,
Daniel
On 27 במרץ 2015, at 00:44, Mich Talebzadeh m...@peridale.co.uk wrote:
I am very new to hive optimiser
Here I have a table with 4 million rows imported from Oracle via
Here you are trying to compare two strings ' BUILDING ' (this value has
extra white spaces) and 'BUILDING'. These strings are not same since one
has bunch of extra white-spaces and other doesn't. Moreover, length of both
strings is not same.
This would return 1: select if('ABC' == rtrim('ABC
Hive is only PRO SQL compliance,
In hive the string comparisons work just like they would work in java
so in hive
BUILDING = BUILDING
BUILDING != BUILDING (extra space added)
On Fri, Mar 27, 2015 at 2:11 PM, @Sanjiv Singh sanjiv.is...@gmail.com
wrote:
Hi,
I can use rtrim function, i.e:
Hi All,
I am getting into Hive and learning hive. I have customer table in teradata
, used sqoop to extract complete table in hive which worked fine.
See below customer table both in Teradata and HIVE.
*In Teradata :*
select TOP 4 id,name,''||status||'' from customer;
3172460
Hi,
I can use rtrim function, i.e:
select id,name,CONCAT ('' , status , '') from customer WHERE
rtrim(status) = 'BUILDING' LIMIT 2;
But question raised what standard in string comparison Hive uses? According
to ANSI/ISO SQL-92 'BUILDING' == 'BUILDING ', Here is a link
Hi experts
When I am viewing the Hive plans, I notice that in Reduce Output Operators,
there is a property named sort order and it's value is +++ - may I know
what's the meaning of the three plus signs? Sometime I also see one plus sign...
Is there any document talking about this? Or where
Thats just an artifact of the email formatting, all the quoting is legit
INSERT OVERWRITE DIRECTORY /user/admin/mydirectory
ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'
select * from my_table_that_exists;
*Error occurred executing hive query: Error while compiling statement:
FAILED:
Yes... If you do not explicitly specify location for a table, it will use
the default database.
*What is the use of EXTERNAL table , why do you have two table flavours :*
Hive tables can be created as EXTERNAL or INTERNAL. This is a choice that
affects how data is loaded, controlled, and
This is not a bug. If you do not explicitly specify location for a table,
it will use the default database.
--
Thanks,
Raunak Jhawar
m: 09820890034
On Fri, Mar 27, 2015 at 5:04 PM, Parth Anand parth.an...@pb.com wrote:
Hi,
I was trying to create External table in hive.
I used
Can I know why do you want to do so?
Currently There is no command or direct way to do that..then I can suggest
workaround for this.
Thanks,
Sanjiv Singh
Regards
Sanjiv Singh
Mob : +091 9990-447-339
On Wed, Mar 25, 2015 at 10:01 AM, Shushant Arora shushantaror...@gmail.com
wrote:
Hi
Is
Maybe they just typed time_shit instead of time_shift and found it out
after 3 hours of tables compression... I don't think it's too important,
but which is the workaround? I'm also interested in this.
Maybe it's just a matter of metastore and one could try to explore the
metastore db to change
Hi,
I have an scenario where new line character exists in data. Because of new line
character, number of records in Target is more than in source. Every record
that has new line character in the data is broken and it appears as 2 records
in hive. When I use cat and pipe it to wc -l, I am
Hive's optimizer never uses the indexes. Indexes aren't fully
implemented in Hive.
Alan.
Mich Talebzadeh mailto:m...@peridale.co.uk
March 27, 2015 at 1:33
There is already JIRA raised for this functionality and patch available
with ticket.
Patch moves the database directory on HDFS and changes its related metadata
entities.
Unit tests are also included.
https://issues.apache.org/jira/browse/HIVE-4847
I have not tried it yet.
Regards,
Sanjiv
Hi
In the image that you had posted. There are 4 plus signs which means sorting
happens on all four columns in key expression. Number of plus signs indicate
the number of columns in key expressions that are used for sorting. Also minus
sign indicate that sorting happens in descending order.
yep it can can happen in any server hosting a database or schema.
I believe you will need to rename the database directory underr hive
warehouse ditectory DBNAME.db.
Then you can hack Hive metasttore database. Mine is on SAP ASE. Certain
tables like DBS etc in metastoreDB need to be changed.
Just to note the current patch for HIVE-4847
https://issues.apache.org/jira/browse/HIVE-4847 doesn't handle errors
really well and you can potentially get in an inconsistent state if there
is a failure along the way. Also, iirc external tables aren't handled
properly either.
-Slava
On Fri, Mar
Hello Hive masters,
I am new to Hive and wondering if any good samples to refer to of using
JDBC to connect and query Hive? Thanks.
regards,
Lin
Hi Lin,
Checkout
https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Clients#HiveServer2Clients-JDBCClientSampleCode
thanks
Prasad
On Fri, Mar 27, 2015 at 2:31 PM, Lin Ma lin...@gmail.com wrote:
Hello Hive masters,
I am new to Hive and wondering if any good samples to refer to
Hi gurus,
STDDEV function can be used for both aggregates and analytics. Fortunately
in Hive it has been implemented which is great. I have a simple question on
this if I may
I would expect the in-built function STDDEV to run pretty efficiently in
most databases as they are system defined
Thanks Prasad!
Have a good weekend.
regards,
Lin
On Fri, Mar 27, 2015 at 2:37 PM, Prasad Mujumdar pras...@cloudera.com
wrote:
Hi Lin,
Checkout
https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Clients#HiveServer2Clients-JDBCClientSampleCode
thanks
Prasad
On Fri, Mar 27,
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