Oh, excellent. Ok, my code does some retrying (including some sleep then
retry logic) when I get a TimedOut, so I think I'm actually just fine.
Whew. :) I had just noticed the dropped message in Cassandra's log today
but had seen the time outs in my log while it was running. I just didn't
conne
On Fri, Aug 20, 2010 at 5:02 PM, Ronald Park
wrote:
> Well this is bad news... Why is this logged only as a WARN? Seems quite
> SEVERE to me.
That's as high as log4j goes, without going all the way to ERROR which
we reserve for bugs. (High load is not a bug.)
> Fortunately for my app, I can go
Well this is bad news... Why is this logged only as a WARN? Seems quite
SEVERE to me.
Fortunately for my app, I can go back to my source, recreate the data and
reload it at a slower rate (and cross my fingers that this rate is 'slow
enough')... unfortunately, it took me 20 hours to load the data
updates being dropped on the floor is exactly what that message means
(the batch_mutate you send are decomposed under the hood to individual
rows for replication, which is why the number is greater than your
3000)
On Fri, Aug 20, 2010 at 3:50 PM, Ronald Park
wrote:
> How about this message:
>
>
How about this message:
WARN [DroppedMessagesLogger] 2010-08-20 08:02:27,668 MessagingService.java
(lin
e 512) Dropped 46469 messages in the last 1000ms
For this application, I also have a 3-node cluster but I'm running a version
of Cassandra built off the trunk (we wanted the 'time to live' fea
This is Cassandra trying to protect itself from the load spike. You
probably need to balance your nodes, tune for performance, add
capacity, or some combination.
On Wed, Aug 18, 2010 at 6:16 AM, Jianing Hu wrote:
> We have a 3-node cluster of Cassandra 0.6.4, on one of them there's a
> ton of er
We have a 3-node cluster of Cassandra 0.6.4, on one of them there's a
ton of error message like the following one:
WARN [MESSAGE-DESERIALIZER-POOL:1] 2010-08-18 04:10:57,767
MessageDeserializationTask.java (line 47) dropping message (1ms past
timeout)
The nod's load spikes and is super slow to rea
