Hello Community,
Is there a maximum SSTable Size?
If there is not, does it go up to the maximum Operational System values?
Thanks in advance,
Lucas Benevides
t; 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,
>
> I want to tell you about my paper published in a conference in March. The
&g
y important in
> terms of making sure TWCS data expires quickly and avoiding having to read
> from more than one TWCS window at a time.
>
>
> - Jeff
>
>
>
> On Mon, May 14, 2018 at 7:12 AM, Lucas Benevides <
> lu...@maurobenevides.com.br> wrote:
>
>> Dea
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
Yes, but remind that there is Write Consistency and Read Consistency.
To prevent the reads from reaching the other DC, you should set the Read
Consistency LOCAL_ONE.
As Hannu Kroger said, the LOCAL_ONE may be enough to you but maybe not if
you want to be sure that your data was written also in anot
and a prometheus client).
When I run netstat -na it does not show port 7199 open.
Tried to look at the logs but didn't see anything.
Can you figure out why it happened and point any possible solution? Config
files enable JMX with authtenticaion=false, but it doesn't work.
Thanks in
properties also apply to TWCS, although it is not in the
documentation.
Thanks in advance,
Lucas Benevides Dias
I don't know if it you help you, but when the debug log is turned on, it
displays the slow queries.
To consider slow, the parameter read_request_timeout_in_ms is considered.
Maybe if you decrease it, you can monitor your queries, with $tail -F
debug.log
Just an idea, I've never made it. Surely it
threads.
Lucas Benevides
Ipea
2018-02-18 8:29 GMT-03:00 onmstester onmstester :
> I've configured a simple cluster using two PC with identical spec:
>
> cpu core i5
>RAM: 8GB ddr3
>Disk: 1TB 5400rpm
>Network: 1 G (I've test it with iperf, it really is!)
database that aggregate value
collected, or it works as a regular persistent database?
Thanks a lot.
Lucas Benevides
2018-01-10 13:06 GMT-02:00 Romain Gerard :
> Hello C*,
>
> A little mail to announce that we released today our internal tool at
> Criteo to monitor Cassandra nodes with
e sets new values to memTable Cleanup
Threshold and Key cache size.
Although it is not proven that the same results will persist in different
environments, it is a good starting point.
Lucas Benevides
2018-01-30 6:12 GMT-02:00 Julien Moumne :
> Hello, I am looking for best practices for the follo
Hello Ahmed,
I have questioned about the compaction metrics in 27/10/2017.
You may see the conversation here
<https://mail-archives.apache.org/mod_mbox/cassandra-user/201710.mbox/%3CCAOsmgAyr89MBk%2BRpbbmG6EkZN4r0fRmXEa9vdS2RxXmBLye%2B7A%40mail.gmail.com%3E>
:
Lucas Benevides
2018-01-05
Good answer Oleksandr,
But I think the data is inserted in the Memtable already in the right
order. At least the datastax academy videos say so.
But it shouldn't make any difference anyhow.
Kind regards,
Lucas Benevides
2017-12-08 5:41 GMT-02:00 Oleksandr Shulgin :
> On Fri, Dec 8, 2
: https://issues.apache.
org/jira/browse/CASSANDRA-11138 that may be causing the problem. I will
apply this patch, test it and report it later.
Thank you
Lucas Benevides
2017-11-01 14:59 GMT-02:00 Varun Barala :
> https://www.instaclustr.com/deep-diving-cassandra-stress-
> part-3-using-yaml-pr
operation2
device 2
ts1: 02/01/1971 #Different values here.
ts2: 05/01/1982
ts3: 08/01/1993
Thanks in advance,
Lucas Benevides
compaction.log data (in
Json format).
These info you gave will be very useful to me. Hope it can get into the
documentation.
Lucas Benevides
2017-10-31 14:56 GMT-02:00 Chris Lohfink :
> CompactionMetrics is a combination of the compaction executor (sstable
> compactions, secondary index build
ally don't know what it is but surely is not the amount of
Compaction Completed Tasks.
Thank you
Lucas Benevides
-
2017-10-30 8:05 GMT-02:00 kurt greaves :
> I believe (may be wrong) that CompletedTasks counts Validation compactions
> while TotalCompactionsCompleted does not.
in TotalCompactionsCompleted.
Thanks in Advance,
Lucas Benevides
advance,
Lucas Benevides
2017-10-10 18:14 GMT-03:00 Michael Shuler :
> The Cassandra team is pleased to announce the release of Apache
> Cassandra version 3.11.1.
>
> Apache Cassandra is a fully distributed database. It is the right choice
> when you need scalability and high avail
etool describecluster"?
Best regards,
Lucas Benevides
2017-08-28 19:45 GMT-03:00 Amir Shahinpour :
> Hi,
>
> I am getting an error connecting to cqlsh. I am getting the following
> error.
>
> Connection error: ('Unable to connect to any servers', {'12
.
Does TWCS uses only these two parameters of STCS (min and max threshold) or
uses all the STSC parameters?
Lucas Benevides
Brasilia, Brazil.
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