Apparently the MemTable..writeSortedContents has the same problem: I can
see how it iterates over the stored keys in byte order, so my classes have
something wrong. For the curious, these are my classes until now:
https://gist.github.com/anonymous/5261611
Carlos Pérez Miguel
2013/3/28 aaron m
> That is the order I would expect to find if I read the CF, but if I do, I
> obtain (with any client or library I've tried):
>
What happens if you export sstables with sstable2json ?
Put some logging in Memtable.FlushRunnable.writeSortedContents to see the order
the rows are written
Cheers
Thanks, Lanny. That is what I am doing.
Actually I'm having another problem. My UUIDOrderedPartitioner doesn't
order by time. Instead, it orders by byte order and I cannot find why.
Which are the functions that control ordering between tokens? I have
implemented time ordering in the "compareTo" fu
Ah. TimeUUID. Not as useful for you then but still something for the toolbox.
On Mar 27, 2013, at 8:42 AM, Lanny Ripple wrote:
> A type 4 UUID can be created from two Longs. You could MD5 your strings
> giving you 128 hashed bits and then make UUIDs out of that. Using Scala:
>
> import ja
A type 4 UUID can be created from two Longs. You could MD5 your strings giving
you 128 hashed bits and then make UUIDs out of that. Using Scala:
import java.nio.ByteBuffer
import java.security.MessageDigest
import java.util.UUID
val key = "Hello, World!"
val md = MessageDigest
> Any idea?
Not off the top of my head.
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 26/03/2013, at 2:13 AM, Carlos Pérez Miguel wrote:
> Yes it does. Thank you Aaron.
>
> Now I realized that the system keyspace
Yes it does. Thank you Aaron.
Now I realized that the system keyspace uses string as keys, like "Ring" or
"ClusterName", and I don't know how to convert these type of keys into
UUID. Any idea?
Carlos Pérez Miguel
2013/3/25 aaron morton
> The best thing to do is start with a look at ByteOrder
The best thing to do is start with a look at ByteOrderedPartitoner and
AbstractByteOrderedPartitioner.
You'll want to create a new TimeUUIDToken extends Token and a new
UUIDPartitioner that extends AbstractPartitioner<>
Usual disclaimer that ordered partitioners cause problems with load balanc
Hi,
I store in my system rows where the key is a UUID version1, TimeUUID. I
would like to maintain rows ordered by time. I know that in this case, it
is recomended to use an external CF where column names are UUID ordered by
time. But in my use case this is not possible, so I would like to use a
c
