I highly recommend DataStax support, although we have not done Windows. They
are in a growth phase, so I expect there will be growing pains with support.
However, they have some top notch folks in place.
Sean Durity – Lead Cassandra Admin
From: Troy Collinsworth [mailto:troycollinswo...@gmail.co
On Thu, Oct 22, 2015 at 12:57 PM, Nate McCall
wrote:
[..]
>
> There is a good comment at the top of StorageService#joinTokenRing which
> explains the process at a high level:
>
> https://github.com/apache/cassandra/blob/cassandra-2.2/src/java/org/apache/cassandra/service/StorageService.java#L791-L
I would start with DataStax. In this year's summit keynote Jonathan Ellis
said C* would start receiving production level support on Windows.
On Tue, Oct 27, 2015 at 9:58 AM, Troy Collinsworth <
troycollinswo...@gmail.com> wrote:
> Searching for a well established company that can provide consulti
Jonathan Ellis slide showing windows support was at 1:02:18 minutes into
the Cassandra Summit Keynote. At 1:07:30 Jonathan specifically said, *“Windows
support…in 2.2 it is production ready first class citizen, we expect it to
be on a level playing field with our linux support”*.
I sent DataStax a
Just to clarify, support for Windows on Cassandra is there in 2.2, and that
is what Jonathan was referring to in his keynote. Support for an OS and
having a Support Team are two different things (DataStax's support team
supports DataStax Enterprise licensed customers).
Also, Cassandra Summit was a
I was in discussions with Datastax to license DSE/support, however I was
told Windows won't be production supported by Datastax by Jan-Mar. If no
company supports Cassandra on Windows in production, especially Datastax,
then it's hard to rationalize that it's ready or can/should be relied on in
pro
On Tue, Oct 27, 2015 at 8:47 PM, Alaa Zubaidi (PDF)
wrote:
> We have Cassandra 2.2.1 on Windows 2008R2-64-bit.
>
> We are noticing that during compaction Cassandra consumes all the
> available memory for the VM and bring the VM to a crawl. compaction
> settings are default, and we are using sized
>
>
> Considering that this concerns mostly auto-bootstrap and seed nodes by
> default do not do that,
> would it be correct to assume that they could be started in parallel and
> then the non-seed should be
> added with the interval apart.
>
> As in seeds-start -> wait -> add non-seed -> wait -> a
> do you mean that this property is ignored at memtable flush time, and so
> memtables are already allowed to be much larger than sstable_size_in_mb?
>
Yes, 'sstable_size_in_mb' plays no part in the flush process. Flushing is
based on solely on runtime activity and the file size is determined by
It’s worth mentioning that initial flushed file size is typically determined by
memtable_cleanup_threshold and the memtable space options
(memtable_heap_space_in_mb, memtable_offheap_space_in_mb, depending on
memtable_allocation_type)
From: Nate McCall
Reply-To: "user@cassandra.apache.org"
On Wed, Oct 28, 2015 at 10:51 AM, Troy Collinsworth <
troycollinswo...@gmail.com> wrote:
> I was in discussions with Datastax to license DSE/support, however I was
> told Windows won't be production supported by Datastax by Jan-Mar. If no
> company supports Cassandra on Windows in production, espe
Thanks Rob,
We are using 7GB JVM on a 32GB RAM VM
Alaa
On Wed, Oct 28, 2015 at 11:18 AM, Robert Coli wrote:
> On Tue, Oct 27, 2015 at 8:47 PM, Alaa Zubaidi (PDF)
> wrote:
>
>> We have Cassandra 2.2.1 on Windows 2008R2-64-bit.
>>
>> We are noticing that during compaction Cassandra consumes all t
Thanks for clarifying this Rob.
-However no step other than 2) provides a *guarantee* of consistency. And
it only provides that guarantee for data that exists when the repair starts.
I read the above as "consistency is a strong term..." :) But that's
understandable.
Thanks again for your help.
Hi Guys,
I am some problems of Connection Timeout in a random mode, that is, the
application in python that I am using sometimes it does work very well
sometimes not, I am getting this error:
015-10-28 19:49:05,286 [WARNING] cassandra.cluster: [control connection] Error
connecting to 10.20.25
Are you running heavy load?
I have seen these kinds error application team reporting to us in case when
they have too many connection already setup and they are trying to connect
more applications.
Try to disconnect the applications which are not required and try again ..
Hope this helps...
On 28
Hi Gupta,
I am running a simple python application that isn’t heavy from point of view of
access to cassandra. The application create a new keyspace, tables and do the
load of data.
The application is an example in python-driver folder.
> On 29 Oct 2015, at 00:33, Surbhi Gupta wrote:
>
> Are
Hi Eduardo,
Is the cluster up and running?
As your message says "Control connection failed to connect, shutting down
Cluster"
May be you can get some more info from the system.log.
Thanks
Surbhi
On 28 October 2015 at 16:46, Eduardo Alfaia
wrote:
> Hi Gupta,
>
> I am running a simple python ap
I am using cassandra standalone, the machine is up, I was monitoring the cassandra seeing the system.log but I didn’t see anything wrong.I’ve captured the flow of packets using wireshark and I’ve seen that the cassandra server is reset the connection with the client. I am sending the python app whi
The cassandra system.log would be more useful
When Cassandra starts rejecting or dropping tcp connections, try to connect
using cqlsh, and check the logs for indication that it’s failing.
From: Eduardo Alfaia
Reply-To: "user@cassandra.apache.org"
Date: Wednesday, October 28, 2015 at 5:09 PM
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