Just a small update here
currently running on one node with 7 GB heap and no JNA
all defaults except the heap, and everything looks OK.
On Sun, Apr 14, 2013 at 9:10 PM, aaron morton wrote:
> Hmmm, what is the recommendation for a 10G network if 1G was 300G to
> 500GŠI am guessing I can't do 10 ti
> Hmmm, what is the recommendation for a 10G network if 1G was 300G to
> 500GŠI am guessing I can't do 10 times that, correct? But maybe I could
> squeak out 600G to 1T?
Best thing to do would be run a test on how long it takes to repair or
bootstrap a node. The 300GB to 500Gb was just a guidelin
> ERROR [Thrift:641] 2013-04-11 11:25:19,563 CassandraDaemon.java (line 164)
> Exception in thread Thread[Thrift:641,5,main]
> java.lang.OutOfMemoryError: Java heap space
It's easier for people to help if you provide the error stack. Does this happen
at startup or after it has been running for a
Hmmm, what is the recommendation for a 10G network if 1G was 300G to
500GŠI am guessing I can't do 10 times that, correct? But maybe I could
squeak out 600G to 1T?
Thanks,
Dean
On 4/11/13 2:26 PM, "aaron morton" wrote:
>> The data will be huge, I am estimating 4-6 TB per server. I know this
>>
I am using 1.2.3, used default heap - 2 GB without JNA installed,
then modified heap to 4 GB / 400 MB young generation. + JNA installed.
bloom filter on the CF's is lowered (more false positives, less disk space).
WARN [ScheduledTasks:1] 2013-04-11 11:09:41,899 GCInspector.java (line
142) Heap is
With that much data per node you have to raise the IndexInterval and adjust
the bloom filter settings. Although the bloom filters are off heap now
having that much data can but a strain on physical memory.
On Thu, Apr 11, 2013 at 4:26 PM, aaron morton wrote:
> > The data will be huge, I am estim
> The data will be huge, I am estimating 4-6 TB per server. I know this is
> best, but those are my resources.
You will have a very unhappy time.
The general rule of thumb / guideline for a HDD based system with 1G networking
is 300GB to 500Gb per node. See previous discussions on this topic fo
For one project I will need to run cassandra on following dedicated servers:
Single CPU XEON 4 cores no hyper-threading, 8 GB RAM, 12 TB locally
attached HDD's in some kind of RAID, visible as single HDD.
I can do cluster of 20-30 such servers, may be even more.
The data will be huge, I am estim
