ANDRA-1956
>
> On Fri, Feb 11, 2011 at 6:00 PM, buddhasystem wrote:
>>
>> Does it also mean that the whole row will be deserialized when a query
>> comes
>> just for one column?
>>
>> --
>> View this message in context:
>> http://cassandra-user-incubator
the whole row will be deserialized when a query
> comes
> just for one column?
>
> --
> View this message in context:
> http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Calculating-the-size-of-rows-in-KBs-tp6011243p6017870.html
> Sent from the cassandra-u...@i
Does it also mean that the whole row will be deserialized when a query comes
just for one column?
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Calculating-the-size-of-rows-in-KBs-tp6011243p6017870.html
Sent from the cassandra-u
On Thu, Feb 10, 2011 at 12:24 PM, Aaron Morton wrote:
> In general the entire row only exists in memory when it is contained in the
> first Memtable it's written to.
Or, somewhat importantly considering the serialization penalty paid to
load it there, when it is in the Row Cache.
As a simple ex
If you are thinking about column_index_size_in_kb in Cassandra.yaml then yes.
Aaron
On 11/02/2011, at 9:39 AM, Aditya Narayan wrote:
> Thank you Aaron!!
>
> But, If you are reading partial rows(that otherwise contain several
> thousands of **valueless** columns) then do the column indexes hel
Thank you Aaron!!
But, If you are reading partial rows(that otherwise contain several
thousands of **valueless** columns) then do the column indexes help in
making the reads faster & more efficient than if they were not
valueless?
Perhaps, because they would only need to look up whether the asked
If you want to get the byte size of a particular row you will need to read it
all back.
If you connect with JConsole at look at you column families, there are
attributes for the max, min and mean row sizes.
In general the entire row only exists in memory when it is contained in the
first Memta
How can I get or calculate the size of rows/ columns ? what are the
any overheads on memory for each column/row ?
