A couple additional things:
- Make sure that you ran repair on the system_auth keyspace on all
nodes after changing the RF
- If you are not often changing roles/permissions, you might look to
increase permissions_validity_in_ms and roles_validity_in_ms so they are not
being
Dear community,
I want to tell you about my paper published in a conference in March. The
title is " NoSQL Database Performance Tuning for IoT Data - Cassandra Case
Study" and it is available (not for free) in
http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0006782702770284
.
TWC
Hi Lucas,
I am not able to download. can you share as attachment in email?
Regards,
Nitan K.
Cassandra and Oracle Architect/SME
Datastax Certified Cassandra expert
Oracle 10g Certified
On Mon, May 14, 2018 at 9:12 AM, Lucas Benevides <
lu...@maurobenevides.com.br> wrote:
> Dear community,
>
>
Hello,
Thank you Lucas for sharing. I am still a beginner in Cassandra NoSQL world.
Are there any other good books related to Performance tuning and Architecture
overview?
Thank you.
On Monday, 14 May 2018, 07:57:38 GMT-7, Nitan Kainth
wrote:
Hi Lucas,
I am not able to download. can
Interesting!
I suspect I know what the increased disk usage in TWCS, and it's a solvable
problem, the problem is roughly something like this:
- Window 1 has sstables 1, 2, 3, 4, 5, 6
- We start compacting 1, 2, 3, 4 (using STCS-in-TWCS first window)
- The TWCS window rolls over
- We flush (sstable
We are using datstax java driver 1.5.0
Thank you.
On Saturday, 12 May 2018, 10:37:04 GMT-7, Jeff Jirsa
wrote:
I haven't seen this before, but I have a guess.
What client/driver are you using?
Are you using a prepared statement that has every column listed for the update,
and leaving
Thank you Jeff Jirsa by your comments,
How can we do this: "fix this by not scheduling the major compaction until
we know all of the sstables in the window are available to be compacted"?
About the column-family schema, I had to customize the cassandra-stress
tool so that it could create a reaso
Hello kooljava2,
There aren't many books about Cassandra, but one of the most famous is the
"Cassandra: The definitive guide: Distributed Data at Web Scale", by Hewitt
The problem is that as Cassandra evolves very fast, these books get out of
date quickly.
To understand some concepts that exist in
