> Replication is configured as DC1:2,DC2:2 (i.e. every node holds the entire
> data).
I really recommend using RF 3.
The error is the coordinator node protecting it's self.
Basically it cannot handle the volume of local writes + the writes for HH. The
number of in flight hints is greater than…
private static volatile int maxHintsInProgress = 1024 *
Runtime.getRuntime().availableProcessors();
You may be able to work around this by reducing the max_hint_window_in_ms in
the yaml file so that hints are recorded if say the node has been down for more
than 1 minute.
Anyways I would say your test showed that the current cluster does not have
sufficient capacity to handle the write load with one node down and HH enabled
at the current level. You can either add more nodes, use nodes with more cores,
adjust the HH settings, or reduce the throughput.
>> On the subject of bug report -- I probably will -- but I'll wait a bit for
perhaps the excessive logging could be handled better, please add a ticket when
you have time.
Cheers
-----------------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 23/01/2013, at 2:12 PM, Rob Coli <rc...@palominodb.com> wrote:
> On Tue, Jan 22, 2013 at 2:57 PM, Sergey Olefir <solf.li...@gmail.com> wrote:
>> Do you have a suggestion as to what could be a better fit for counters?
>> Something that can also replicate across DCs and survive link breakdown
>> between nodes (across DCs)? (and no, I don't need 100.00% precision
>> (although it would be nice obviously), I just need to be "pretty close" for
>> the values of "pretty")
>
> In that case, Cassandra counters are probably fine.
>
>> On the subject of bug report -- I probably will -- but I'll wait a bit for
>> more info here, perhaps there's some configuration or something that I just
>> don't know about.
>
> Excepting on replicateOnWrite stage seems pretty unambiguous to me,
> and unexpected. YMMV?
>
> =Rob
>
> --
> =Robert Coli
> AIM>ALK - rc...@palominodb.com
> YAHOO - rcoli.palominob
> SKYPE - rcoli_palominodb
