Yes, seeing latency improvement after backporting 9472 to 3.0.13. We are
measuring p99 latency, thus moving objects off heap improved gc stalls,
which directly affects our read/write p99 latency.
On Thu, Jul 27, 2017 at 10:54 PM, Jeff Jirsa wrote:
> This is after you backported 9472 to 3.0?
>
>
This is after you backported 9472 to 3.0?
--
Jeff Jirsa
> On Jul 27, 2017, at 10:33 PM, Andrew Whang wrote:
>
> Jay,
>
> We see ~20% write latency improvement on 3.0.13 in a write-heavy workload,
> using offheap_objects. offheap_buffers only offered minimal improvement.
>
> On Thu, Jul 27,
Jay,
We see ~20% write latency improvement on 3.0.13 in a write-heavy workload,
using offheap_objects. offheap_buffers only offered minimal improvement.
On Thu, Jul 27, 2017 at 10:06 PM, Jay Zhuang
wrote:
> Hi Andrew,
>
> Do you see performance gain from reintroducing off-heap memtables for
> 3
Hi Andrew,
Do you see performance gain from reintroducing off-heap memtables for
3.0.x? When we were on 2.2.x we saw big improvements from enabling
off-heap memtables.
Thanks,
Jay
On 7/27/17 9:37 PM, Andrew Whang wrote:
> I'm wondering if anyone has been able to patch CASSANDRA-9472 to 3.0,
> wi
I'm wondering if anyone has been able to patch CASSANDRA-9472 to 3.0,
without breaking unit tests. The patch was introduced in 3.4, but 3.0.x
contains unit tests and code from later 3.x releases, which makes debugging
unit test failures difficult - i.e. SSTableCorruptionDetectionTest, which
was int
+1
2017-07-27 9:26 GMT+02:00 Marco Massenzio :
> Why not simply have a microservice that does this for you?
>
> It may expose an API that allows to either store queries and/or conditions
> that trigger the queries (maybe time elapsed, an alert generated,
> whatever...) and it would then connect t
Why not simply have a microservice that does this for you?
It may expose an API that allows to either store queries and/or conditions
that trigger the queries (maybe time elapsed, an alert generated,
whatever...) and it would then connect to Cassandra and execute the stored
query(ies).
Given that
