Re: Anomaly detection

Cassandra or Casandra metrics? > > -- > Rahul Singh > rahul.si...@anant.us > > Anant Corporation > > On Mar 12, 2018, 12:44 PM -0400, D. Salvatore <dd.salvat...@gmail.com>, > wrote: > > Hello everyone, > Do you know if exist a Cassandra tool that performs anomaly detection? > > Thank you in advance > Salvatore > >

Anomaly detection

Hello everyone, Do you know if exist a Cassandra tool that performs anomaly detection? Thank you in advance Salvatore

Re: Read latency

experiment time (results provided by the end of YCSB execution). In the results I got, the YCSB is more than 4 times higher than the one gathered from each node. Thanks Salvatore 2018-03-05 14:59 GMT+00:00 Jeff Jirsa <jji...@gmail.com>: > > > > On Mar 5, 2018, at 6:52 AM, D. Sa

Read latency

Hello everyone, I am benchmarking a Cassandra installation on Azure composed of 4 nodes (Standard_D2S_V3 - 2vCPU and 8GB ram) with a replication factor of 2. To benchmark this testbed, I am using a single YCSB instance with the workload C (100% read request), a Consistency level ONE and only 10

Re: Current active queries and status/type

ith JMX (this is available using TRACING per > request) > > > On 1 March 2018 at 15:50, D. Salvatore <dd.salvat...@gmail.com> wrote: > >> Hello! >> There is any way to know how many queries a node is currently serving >> through JMX(or other tools)? And the

Current active queries and status/type

Hello! There is any way to know how many queries a node is currently serving through JMX(or other tools)? And the state of the request so, for example, if the request is waiting for data from another node? Thanks Salvatore

real workload traces

Hi everyone, I am looking, but I couldn't find on the web, some real workload Cassandra traces. Do you know where I can find these and how I can replay them? Thanks

Most used token or partitions

Hi, I am looking for a way to retrieve some statistic about the usage of the data on my Cassandra cluster. Ideally I would like to retrieve a list of the most used token ranges or partitions over the time through JMX or other similar ways. I found that nodetool as the option "toppartition" to

autoscaling

Hi, I am using Cassandra 3 with a single DC. I would like to know if there is any tool available for scaling up and down Cassandra automatically. Thanks

Queries execution time

Hi, Does anyone know if there is a way to record in a log file the queries total or partial execution time? I am interested in something similar to the tracing option but on file. Thanks Best Regards Salvatore

Cassandra CPU perfomance

Hi, I deployed a Cassandra 2.2 ring composed by 4 nodes in the cloud with 8 vCPU and 8GB of ram. I am running some tests now with cassandra-stress and YCSB tools to test its performance. I am mainly interested in read requests with a small amount of write requests (95%/5%). Running the