Dne 18.10.2012 20:06, Bryan Talbot napsal(a):
In a 4 node cluster running Cassandra 1.1.5 with sun jvm 1.6.0_29-b11
(64-bit), the nodes are often getting stuck in state where CMS
collections of the old space are constantly running.
you need more java heap memory
There are two processes in cassandra that trigger Read Repair like behaviour.
During a DigestMismatchException is raised if the responses from the replicas
do not match. In this case another read is run that involves reading all the
data. This is the CL level agreement kicking in.
The other
I *think* this may be ghost rows which have not being compacted.
How many SSTables are on disk for the HintedHandoff CF ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 19/10/2012, at 7:16 AM, David Daeschler david.daesch...@gmail.com
Yes AFAIK.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 20/10/2012, at 12:15 AM, Vivek Mishra mishra.v...@gmail.com wrote:
Hi,
Is it possible to reuse same compound primary key after delete? I guess it
works fine for non composite
Can you paste the table definition ?
Thanks
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 20/10/2012, at 5:53 AM, Ryabin, Thomas thomas.rya...@mckesson.com wrote:
I have a column family called “books”, and am trying to delete all rows where
I have a set of categories. In these categories I want to add groups of
users. If a user does not specify the group they want to join in a
category, I want to add them to the least subscribed group.
So the groups are a super column with CategoryId as key, GroupId as
superColumnName and then
It is better to provide table definition. I guess the reason is below
statement.
a table must define at least one column that is not part of the PRIMARY
KEY as a row exists in Cassandra only if it contains at least one value for
one such column
Please check this document
