After some time. I believe this is correct. The "load" seems to be
correlated to compactions/number of files for keyspace/IO etc.
Thanks all!
Regards,
On Thu, Oct 18, 2012 at 9:35 PM, aaron morton wrote:
> At times of high load check the CPU % for the java service running C* to
> confirm C* is
At times of high load check the CPU % for the java service running C* to
confirm C* is the source of load.
If the load is generated from C* check the logs (or use OpsCentre / other
monitoring) to see if it correlated to compaction, or Garbage Collection or
repair or high throughput.
Cheers
Some of your column families are not fully compacted. But it is pretty
normal, I would not worry about it. Eventually it should happen.
On Wed, Oct 17, 2012 at 1:46 AM, Alain RODRIGUEZ wrote:
> I've got the same problem, and other people in the mailing list are
> reporting the same issue.
>
> I d
I've got the same problem, and other people in the mailing list are
reporting the same issue.
I don't know what is happening here.
RF 2, 2 nodes :
10.59.21.241eu-west 1b Up Normal 137.53 GB
50.00% 0
10.58.83.109eu-west 1b Up Normal 102.46
Nothing unusual.
All servers are exactly the same. Nothing unusual in the log files. Is
there any level of logging that I should be turning on?
Regards,
On Wed, Oct 17, 2012 at 9:51 AM, Andrey Ilinykh wrote:
> With your environment (3 nodes, RF=3) it is very difficult to get
> uneven load. Eac
With your environment (3 nodes, RF=3) it is very difficult to get
uneven load. Each node receives the same number of read/write
requests. Probably something is wrong on low level, OS or VM. Do you
see anything unusual in log files?
Andrey
On Tue, Oct 16, 2012 at 3:40 PM, Ben Kaehne wrote:
> Not
Not connecting to the same node every time. Using Hector to ensure an even
distribution of connections accross the cluster.
Regards,
On Sat, Oct 13, 2012 at 4:15 AM, B. Todd Burruss wrote:
> are you connecting to the same node every time? if so, spread out
> your connections across the ring
>
I checked this and all the numbers seemed to be about the same. Although
the files would compact from time to time. There was nothing to suggest why
1 node, ongoingly had less load then the others.
Regards,
On Fri, Oct 12, 2012 at 7:22 PM, Alexey Zotov wrote:
> Hi Ben,
>
> I suggest you to compa
are you connecting to the same node every time? if so, spread out
your connections across the ring
On Fri, Oct 12, 2012 at 1:22 AM, Alexey Zotov wrote:
> Hi Ben,
>
> I suggest you to compare amount of queries for each node. May be the problem
> is on the client side.
> Yoy can do that using JMX:
Hi Ben,
I suggest you to compare amount of queries for each node. May be the
problem is on the client side.
Yoy can do that using JMX:
"org.apache.cassandra.db:type=ColumnFamilies,keyspace=,columnfamily=","ReadCount"
"org.apache.cassandra.db:type=ColumnFamilies,keyspace=,columnfamily=","WriteCount
Good morning,
I am running a simple 3 node cluster.
Each node is relatively powerful. (16 core, lots of ram, good disk etc).
All machines are identical.
Token ranges are all equal (generated with the python script on datastax
website)
Although under heavy load I can see the "unix load" be rather
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