How does range scan work in Cassandra? Does the read of a key perform the
read across all the SSTables that contain the key and return the row or are
SSTables processed sequentially? If I have a key k and its columns are
spread across N SSTables then does the read of key k return the row with all
t
Update:
I scaled my cluster down from 7 nodes to 3 nodes, and kept RF=3. I did
a complete cluster rebuild, so everything was fresh. Kept my reads and
writes at CL.ALL. For a while there it seemed like I had succeeded in
eliminating the problem. Unfortunately about an hour ago a duplicate
came thro
Sure I can fill in the ticket. Here is what I have noticed so far, the count
of HH is not going up, which is good. I think what must have happened is
that after I restarted the cluster, no new hints were added just the old
one's are still around and not cleaned up, is that possible? Cannot say for
On Fri, Aug 26, 2011 at 12:18 AM, Eric Evans wrote:
> On Thu, Aug 25, 2011 at 6:31 AM, Ruby Stevenson wrote:
> > - Although Cassandra (and other decentralized NoSQL data store) has
> > been reported to handle very large data in total, my preliminary
> > understanding is the individual "column va
On Thu, Aug 25, 2011 at 11:42 PM, King JKing wrote:
> Dear Jonathan,
> Cassandra process has 63.5 GBÂ virtual size.
> I mention about RES column in top. RES is 8.3G. Very large than 2.5G Used
> Memory Used show in JConsole.
https://issues.apache.org/jira/browse/CASSANDRA-2868
-Brandon
>
> Sort of. There's some fine print, such as the 50% number is only if
> you're manually forcing major compactions, which is not recommended,
> but a bigger thing to know is that 1.0 will introduce "leveled
> compaction" [1] inspired by leveldb. The free space requirement will
> then be a small
Hi,
we have 4 node Cassandra (version 0.8.1) cluster. 2 CF inside. While first
CF is working properly (read/store), get_range_slices query on second CF
return NPE error.
Any idea why it happen? Maybe some known bug and fixed in 0.8.3 ?
ERROR [pool-2-thread-51] 2011-08-25 15:02:04,360 Cassandra.
