Hi,
You can run "nodetool compactionstats" to view statistics on compactions.
Setting cold_reads_to_omit to 0.0 can help to reduce the number of
SSTables when you use Size-Tiered compaction.
You can also create a cron job to increase the value of
setcompactionthroughput during the night or when yo
One think I do not understand. In my case compaction is running
permanently. Is there a way to check which compaction is pending? The only
information is about total count.
On Monday, February 16, 2015, Ja Sam wrote:
> Of couse I made a mistake. I am using 2.1.2. Anyway night build is
> availabl
Of couse I made a mistake. I am using 2.1.2. Anyway night build is
available from
http://cassci.datastax.com/job/cassandra-2.1/
I read about cold_reads_to_omit It looks promising. Should I set also
compaction throughput?
p.s. I am really sad that I didn't read this before:
https://engineering.eve
Hi 100% in agreement with Roland,
2.1.x series is a pain! I would never recommend the current 2.1.x series
for production.
Clocks is a pain, and check your connectivity! Also check tpstats to see if
your threadpools are being overrun.
Regards,
Carlos Juzarte Rolo
Cassandra Consultant
Pythian -
Hi,
1) Actual Cassandra 2.1.3, it was upgraded from 2.1.0 (suggested by Al
Tobey from DataStax)
7) minimal reads (usually none, sometimes few)
those two points keep me repeating an anwser I got. First where did you
get 2.1.3 from? Maybe I missed it, I will have a look. But if it is
2.1.2 whi
> Could you please share how much data you store on the cluster and what
> is HW configuration of the nodes?
These nodes are dedicated HW, 24 cpu and 50Gb ram.
Each node has a few TBs of data (you don't want to go over this) in
raid50 (we're migrating over to JBOD).
Each c* node is running 2.0.
*Environment*
1) Actual Cassandra 2.1.3, it was upgraded from 2.1.0 (suggested by Al
Tobey from DataStax)
2) not using vnodes
3)Two data centres: 5 nodes in one DC (DC_A), 4 nodes in second DC (DC_B)
4) each node is set up on a physical box with two 16-Core HT Xeon
processors (E5-2660), 64GB RAM an
On 2015-02-05 12:39, Carlos Rolo wrote:
> Hello Erik,
>
> It seems possible, refer to the following documentation to see if it
> fits your needs:
> http://www.datastax.com/documentation/cassandra/2.0/cassandra/security/secureInternalAuthenticationTOC.html
> http://www.datastax.com/documentation/ca
Hi,
thanks for the reference, I really appreciate that you shared your
experience.
Could you please share how much data you store on the cluster and what
is HW configuration of the nodes? I am really impressed that you are
able to read 100M records in ~4minutes on 4 nodes. It makes something
like
