>
> In other words, if I am running Cassandra 1.2.x and upgrading to 2.0.x,
> 2.0.x will continue to read all the old Cassandra 1.2.x table. However, if
> I then want to upgrade to Cassandra 2.1.x, I’d better make sure all tables
> have been upgraded to 2.0.x before making the next upgrade.
Corre
Hi ,
In my environment, we are coming up with 3 to 4 new projects , hence new
keyspaces will be coming into picture.
Do we have any limitations or performance issues when we hit to a number of
keyspaces or number of nodes vs keyspaces?
Also connections limitations if any?
I know as data grows we
Distributed Data Day is shaping up to look like a Cassandra related summit.
See http://distributeddatasummit.com/2018-sf/speakers
You'll most likely see all the same familiar faces and familiar vendors :)
However note it is not the official Apache Cassandra Summit and it is being
run by a for pro
A related question:
Is nodetool upgradesstables only necessary before you’re going to move major
versions? I was under the impression that Cassandra N+1 could read the table
format of Cassandra N.
In other words, if I am running Cassandra 1.2.x and upgrading to 2.0.x, 2.0.x
will continue to r
Hello,
Are there any updates on this event?
Regards,
Horia
On tis, 2018-02-27 at 11:42 +, Carlos Rolo wrote:
Hello all,
I'm interested planning/organizing a small kinda of NGCC in Lisbon, Portugal in
late May early June. Just waiting for the venue to confirm possible dates.
Would be a 1da
Thanks very much,Hannu,I got your point.
Best Regards,
倪项菲/ David Ni
中移德电网络科技有限公司
Virtue Intelligent Network Ltd, co.
Add: 2003,20F No.35 Luojia creative city,Luoyu Road,Wuhan,HuBei
Mob: +86 13797007811|Tel: + 86 27 5024 2516
发件人: Hannu Kröger
发送时间: 2018年5月3日 15:16
收件人: user@cassandra.apache.or
Hi,
It depends on your replication factor and consistency levels used.
If you are not using consistency level of ALL in your applications and your
replication factor is 3, then you usually don’t need to stop your frontend
applications for the upgrade.
If replication factor = 2 then you need to
Thanks Hannu,
Another question is that,do I need to stop the frontend application during the
upgrade?
I have 3 nodes cluster,let’s say:
Cassandra01
Cassandra02
Cassandra03
First I upgrade the cassandra01 node,
1,nodetool drain
2,backup data
3,install new binary
4,configure the configuration file
Hello,
it never hurts to run “nodetool upgradesstables" after the upgrade. It’s a
no-op if there is nothing to upgrade.
Hannu
> On 3 May 2018, at 09:57, Xiangfei Ni wrote:
>
> Hi Community
> I have a question regarding upgrading Cassandra from 3.9 to 3.11.2,
> Do I need to run nodetool up
