Hello,
We are working on some new cassandra requirements and I wanted to get your
recommendations on how to go ahead and put schema in place in terms of how
many CF one should have for below scenario:
1- There are 10 applications. Out of which 1 or 2 applications are very
active giving 90%+
Hello,
Wondering how would one add Composite Keys rows using CLI. Supposing we
have CF defined below:
create column family ListTransactions
with comparator =
'CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.IntegerType)'
and keys_cached=1
and
I am trying to store Counters CF from cassandra to Hive. Below is the
CREATE TABLE syntax in Hive:
DROP TABLE IF EXISTS Counters;
create external table Counters(row_key string, column_name string, value
string)
STORED BY 'org.apache.hadoop.hive.cassandra.CassandraStorageHandler'
WITH
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 20/03/2012, at 1:09 PM, Sunit Randhawa wrote:
I am trying to store Counters CF from cassandra to Hive. Below is the
CREATE TABLE syntax in Hive:
DROP TABLE IF EXISTS Counters;
create external
Hello,
Code snippet below is printing out column names and values:
MultigetSliceQueryString, String, String multigetSliceQuery =
HFactory.createMultigetSliceQuery(keyspace,
stringSerializer, stringSerializer, stringSerializer);
for (HColumnString, String column : c){
Hello,
I have 2 Columns for a 'RowKey' as below:
#1 : set CF['RowKey']['1000']='A=1,B=2';
#2: set CF['RowKey']['1000:C1']='A=2,B=3'';
#2 has the Composite Column and #1 does not.
Now when I execute the Composite Slice query by 1000 and C1, I do get
both the columns above.
I am hoping get #2
?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 6/07/2012, at 7:26 AM, Sunit Randhawa wrote:
Hello,
I have 2 Columns for a 'RowKey' as below:
#1 : set CF['RowKey']['1000']='A=1,B=2';
#2: set CF['RowKey']['1000:C1']='A=2,B=3
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 6/07/2012, at 11:30 AM, Sunit Randhawa wrote:
HI Aaron,
It is
create column family CF
with comparator =
'CompositeType(org.apache.cassandra.db.marshal.Int32Type
, at 1:28 PM, Sunit Randhawa wrote:
Aaron,
For writing, i am using cli.
Below is the piece of code that is reading column names of different types.
Composite start = new Composite();
start.addComponent(0, beginTime,
Composite.ComponentEquality.EQUAL);
if (columns != null){
int colCount =1
I have tested this extensively and EOC has huge issue in terms of
usability of CompositeTypes in Cassandra.
As an example: If you have 2 Composite Columns such as A:B:C and A:D:C.
And if you do search on A:B as start and end Composite Components, it
will return D as well. Because it returns all
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