Hi all,
I'm using twitter/cassandra ruby client, trying to pool a connection in a
static variable.
@@client = Cassandra.new(keyspace, host, :retries = retries,
:connect_timeout = connect_timeout, :timeout = timeout,
:exception_classes = [])
but the connection returns stream closed error
/browse/CASSANDRA
?
You could try cqlsh http://www.datastax.com/docs/1.1/dml/using_cql
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 12/09/2012, at 11:29 AM, Yuhan Zhang yzh...@onescreen.com wrote:
Hi all,
I'm trying to manually
Hi all,
I'm trying to manually adding some double values into a column family. From
the Hector client, there's a DoubleSerializer.
but looks like the cli tool is not providing a way to enter floating point
values. here's the message I got:
[default@video] set cateogry['1']['sport'] =
Hi all,
I'm playing with cassandra's ruby client written by twitter, trying to
perform a simple get.
but looks like it assumed the value types to be uft8 string. however, my
values are in double (keyed and column names are utf8types).
The values that I got are like:
, Yuhan Zhang yzh...@onescreen.com wrote:
Hi all,
I'm playing with cassandra's ruby client written by twitter, trying to
perform a simple get.
but looks like it assumed the value types to be uft8 string. however, my
values are in double (keyed and column names are utf8types
!
QueryResultOrderedRowsString, String, Double result =
indexedSlicesQuery.execute();
return result;
}
Is there any column_meta setting that is required in order to make GTE
comparison works on secondary index?
Thank you.
Yuhan Zhang
PM, Yuhan Zhang yzh...@onescreen.com wrote:
Hi all,
I'm trying to search by the secondary index of cassandra with greater
than or equal. but reached an exception stating:
me.prettyprint.hector.api.exceptions.HInvalidRequestException:
InvalidRequestException(why:No indexed columns present
-examples
This can perhaps help...
Regards,
--
Jérémy
--
Yuhan Zhang
Application Developer
OneScreen Inc.
yzh...@onescreen.com eho...@onescreen.com
www.onescreen.com
The information contained in this e-mail is for the exclusive use of the
intended recipient(s) and may be confidential
Hi Jonathan, thanks for the reference. will read up on it.
Yuhan
Hi all,
Is there a way to remove default_validation_class after assigned it to a
column family?
I'd like to have a column family storing both string and long. looks like
it throws error at
me for String didn't validate.
Thank you.
Yuhan
to answer my own question: set default_validation_class = BytesType;
On Tue, May 15, 2012 at 7:09 PM, Yuhan Zhang yzh...@onescreen.com wrote:
Hi all,
Is there a way to remove default_validation_class after assigned it to a
column family?
I'd like to have a column family storing both string
Hi all,
I'm using the Hector client 0.8, trying to retrieve a list of IDs from a
gaint row. each ID is a columnName in the row
It works ok when there's not many IDs, but SliceQuery starts to time-out
after the row becomes big.
Is this approach the correct way to store a list of IDs? are there
this:
Query you CF with a range.setStart(lastColName) and
range.setFinish(StringUtils.byte() where the lastColName is the name
of the column from the previous read.
You can continue this until you run out of results.
2012/2/14 Yuhan Zhang yzh...@onescreen.com
Hi all,
I'm using
Hi all,
I have been experiencing the unavailableException and TimedOutException on a
3-node cassandra cluster
during a multiGetSliceQuery with 1000 columns. Since there are many keys
involved in the query, I divided
them into groups of 5000 rows and process each group individually in a for
loop.
, at 9:14 AM, Yuhan Zhang wrote:
Hi all,
I have been experiencing the unavailableException and TimedOutException on
a 3-node cassandra cluster
during a multiGetSliceQuery with 1000 columns. Since there are many keys
involved in the query, I divided
them into groups of 5000 rows and process
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