Hi,
I have a small 2 node cassandra cluster that seems to be constrained by
read throughput. There are about 100 writes/s and 60 reads/s mostly against
a skinny column family. Here's the cfstats for that family:
SSTable count: 13
Space used (live): 231920026568
Space used (total): 231920026
in cassandra-cli, i did something like:
update column family xyz with
compaction_strategy='LeveledCompactionStrategy'
On Thu, Aug 30, 2012 at 5:20 AM, Jean-Armel Luce wrote:
>
> Hello,
>
> I am using Cassandra 1.1.1 and CQL3.
> I have a cluster with 1 node (test environment)
> Could you tell ho
I have a column family that I am using for consistency purposes. Basically
a marker column is written to a row in this family before some actions take
place and is deleted only after all the actions complete. The idea is that
if something goes horribly wrong this table can be read to see what needs
I am having an issue where one node of a 2 node cluster seems to be using
much more I/O than the other node. the cassandra read/write requests seem
to be balanced, but iostat shows the data disk to be maxed at 100%
utilization for one machine and <50% for the other. r/s to be about 3x
greater on th
times a day. we are just starting to use cassandra
so i am more worried about when more critical web traffic hits.
>
> Cheers
>
> -----
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 7/07/2012, at 4:33 AM, feedl
ole to the JVM you may get a better view of the heap usage.
>
> Hope that helps.
>
> -
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 3/07/2012, at 3:41 PM, feedly team wrote:
>
> Couple more details. I conf
ind of
off-heap memory?
I'm a little puzzled as to why I would get such long pauses without
swapping. I uncommented all the gc logging options in cassandra-env.sh to
try to see what is going on when the node freezes.
Thanks
Kireet
On Mon, Jul 2, 2012 at 9:51 PM, feedly team wrote:
> Yeah
hnica.com/business/2012/07/one-day-later-the-leap-second-v-the-internet-scorecard/
> I had the same problem. The solution was rebooting.
>
> On Mon, 2 Jul 2012 11:08:57 -0400
> feedly team wrote:
>
> > Hello,
> >I recently set up a 2 node cassandra cluster on dedicated hardw
Hello,
I recently set up a 2 node cassandra cluster on dedicated hardware. In
the logs there have been a lot of "InetAddress xxx is now dead' or UP
messages. Comparing the log messages between the 2 nodes, they seem to
coincide with extremely long ParNew collections. I have seem some of up to
50
