Hi Jonathan -
Would you recommend to disable system swap as a rule? I'm running on Debian
64bit and am seeing light swapping:
total used free shared buffers cached
Mem: 8003 7969 33 0 0 4254
-/+ buffers/cache: 3714 4288
Swap: 513 15 498
On Apr 5, 2011, at 8:35 PM, Jonathan Ellis wrote:
> Step 1: disable swap.
>
> 2011/4/5 Héctor Izquierdo Seliva <[email protected]>:
>> Update with more info:
>>
>> I'm still running into problems. Now I don't write more than 100 columns
>> at a time, and I'm having lots of Stop-the-world gc pauses.
>>
>> I'm writing into three column families, with memtable_operations = 0.3
>> and memtable_throughput = 64. There is now swapping, and full GCs are taking
>> around 5 seconds. I'm running cassandra with a heap of 8 GB. Should I tune
>> this somehow?
>>
>> Is any of this wrong?
>>>
>>>>> -----Original Message-----
>>>>> From: Héctor Izquierdo Seliva [mailto:[email protected]]
>>>>> Sent: April-05-11 8:30
>>>>> To: [email protected]
>>>>> Subject: batch_mutate failed: out of sequence response
>>>>>
>>>>> Hi everyone. I'm having trouble while inserting big amounts of data into
>>>>> cassandra. I'm getting this exception:
>>>>>
>>>>> batch_mutate failed: out of sequence response
>>>>>
>>>>> I'm gessing is due to very big mutates. I have made the batch mutates
>>>>> smaller and it seems to be behaving. Can somebody shed some light?
>>>>>
>>>>> Thanks!
>>>>>
>>>>> No virus found in this incoming message.
>>>>> Checked by AVG - www.avg.com
>>>>> Version: 9.0.894 / Virus Database: 271.1.1/3551 - Release Date: 04/05/11
>>>>> 02:34:00
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
