Percona Community

JUNE 24, 2020

This talk was a good overview and meant for anyone who had heard of the Apache Cassandra distributed database but wasn’t sure whether it would be suitable for their project or not.

Database 52

Database 52

Dynatrace

JULY 1, 2022

To take advantage of performance improvements, the latest security-vulnerability enhancements, and bug fixes, we’ve upgraded JRE for the following cluster node components: Cassandra and Elasticsearch will now use JRE 8u332. Storage service upgrade to Cassandra 3.11.13. Other components will now use JRE 11.0.15.

Operating System 205

Operating System Storage Metrics Systems 205

n0derunner

JULY 21, 2021

If you clone a Cassandra VM with the goal of creating a cassandra cluster – you may find that every Cassandra node has the same hostID. appeared first on n0derunner. appeared first on n0derunner.

Systems 40

Systems Database 40

n0derunner

JULY 21, 2021

If you clone a Cassandra VM with the goal of creating a cassandra cluster – you may find that every Cassandra node has the same hostID. appeared first on n0derunner. appeared first on n0derunner.

Systems 40

Systems Database 40

n0derunner

JULY 21, 2021

If you clone a Cassandra VM with the goal of creating a cassandra cluster – you may find that every Cassandra node has the same hostID. appeared first on n0derunner. appeared first on n0derunner.

Systems 40

Systems Database 40

High Scalability

JANUARY 11, 2022

Additionally, we can use columnar databases like Cassandra to store information like user feeds, activities, and counters. We will use columnar data storage such as Cassandra to store data entities like user feed and activities. Component Design. Posting on Instagram. Each row will contain feed/activity information of the user.

Design 334

Design Media Storage Logistics 334

The Netflix TechBlog

OCTOBER 19, 2020

We use Mantis for processing the stream of collected traces, and we use Cassandra for storing traces. We solved this by migrating to Cassandra as our data store for handling high data ingestion rates. Using simple lookup indices in Cassandra gives us the ability to maintain acceptable read latencies while doing heavy writes.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Scalegrid

NOVEMBER 25, 2019

ScyllaDB is an open-source distributed NoSQL data store, reimplemented from the popular Apache Cassandra database. In this post, we break down ScyllaDB cloud vs. on-premise deployments, most popular cloud providers, SQL and NoSQL databases used with ScyllaDB, most time-consuming management tasks, and why you should use ScyllaDB vs. Cassandra.

Big Data 187

Big Data Database Open Source Azure 187

Percona Community

MAY 6, 2020

(Wed) Level: Intermediate Abstract At Yelp, Cassandra, our NoSQL database of choice, has been deployed on AWS compute (EC2) and AutoScaling Groups (ASG), backed by Block Storage (EBS). This deployment model has been quite robust over the years while presenting its own set of challenges.

AWS 40

AWS Storage Infrastructure Database 40

Dynatrace

JUNE 15, 2021

Rack-aware Cassandra deployments. As for Cassandra, a 3-node Dynatrace SaaS deployment, we deploy 9 Cassandra nodes with a rack-aware deployment. In case one zone goes down, the traffic gets redirected to the remaining Cassandra nodes. This deployment is also super resilient to full data center (e.g.,

AWS 192

AWS Traffic Architecture Azure 192

Dynatrace

FEBRUARY 8, 2022

To take advantage of performance improvements, the latest security-vulnerability enhancements, and bug fixes, we’ve upgraded JRE for the following cluster node components: Cassandra and Elasticsearch will now use JRE 8u312. Other components will now use JRE 11.0.13. OpenID Connect (SSO).

Monitoring 215

Monitoring Performance 215

Percona Community

OCTOBER 22, 2018

My talk is titled Need for speed: Boosting Apache Cassandra’s performance using Netty. So, naturally when I first started contributing to Apache Cassandra, I started looking opportunities to improve its performance. Over the years that I have worked in the software industry, making code run fast has fascinated me.

Speed 40

Speed Performance Code Software 40

Dynatrace

OCTOBER 30, 2020

Once you select Start analysis , Dynatrace: collects diagnostic data for the last 24 hours of the affected host or process, stores the collected diagnostic data in your Cassandra database. When the Store locally option is selected, the collected diagnostic data is stored in your local Cassandra database, but no further analysis is applied.

Monitoring 230

Monitoring AWS Database Processing 230

Dynatrace

JUNE 29, 2021

To take advantage of performance improvements, the latest security-vulnerability enhancements, and bug fixes, we’ve upgraded the following cluster node components: Cassandra and Elasticsearch will now use JRE 8u292. Elasticsearch engine is now based on version 7.10. Other components will now use JRE 11.0.11.

Engineering 205

Engineering Systems Performance 205

The Netflix TechBlog

JANUARY 25, 2023

Given the requirements and the expertise in our team we decided to choose Cassandra as the source of truth for storing annotations. Cassandra and Elasticsearch backend databases support horizontal scaling of the service with growing data size and queries. For supporting different search requirements we chose ElasticSearch.

Scalability 283

Scalability Latency Media Architecture 283

Dynatrace

OCTOBER 22, 2021

Metric and configuration storage database was updated to Cassandra 3.11.11 To improve web application monitoring, you can now configure “Angular package name” for Angular 12 applications. OpenSSL library, used by Nginx service, was updated to version 1.1.1l for increased resilience and security. for improved resilience.

Metrics 216

Metrics Monitoring Storage Database 216

Dynatrace

MAY 4, 2020

Added support for Cassandra (CQL3) – cassandra-driver-core 4.0.0-4.5.0. Dynatrace news. Added support for Akka Remoting 2.3, Operating systems. Added support for CentOS 7.x, x (AArch64). Added support for SUSE Enterprise Linux 15.x x (AArch64). Added support for Ubuntu 20.04 LTS (AArch64, PPCLE, s390x, x86). LTS (AArch64).

Java 104

Java Operating System Systems 104

Dynatrace

JUNE 8, 2020

CPU usage and suspension rates for cluster node processes (namely Server, Cassandra, (embedded) ActiveGate, and Elasticsearch) are also visualized. In addition to the cluster overview dashboard, we also provide a separate dashboard for more detailed server process metrics and another dashboard for Cassandra metrics. Enroll now.

Software 165

Software Software Programming Metrics 165

Dynatrace

APRIL 8, 2021

For optimized performance and resilience, configuration and metric storage service was upgraded to Cassandra 3.11.10. To improve DNS load-balancing performance, Web UI traffic is by default disabled when installing 13th and following node (or 7th and following in a datacenter for Premium HA ). Cluster REST API.

Traffic 141

Traffic Storage Internet Internet 141

The Netflix TechBlog

JULY 30, 2019

Cassandra persistence module is a partial implementation. Cassandra Persistence Layer To enable horizontal scaling of the datastore for large volume of concurrent workflow executions (millions of workflows/day), Cassandra was chosen to provide elastic scaling and meet throughput demands.

Lambda 189

Lambda Media Open Source Metrics 189

Scalegrid

MARCH 4, 2019

SQL has had a large lead over the non-relational alternatives for decades, but NoSQL is quickly closing the gap with popular databases such as MongoDB, Redis, and Cassandra. use, followed by MongoDB at 24.6%, PostgreSQL at 17.4%, Redis at 8.4%, and Cassandra at 3.0%. Guess again. MySQL dominated this report with 38.9%

Database 255

Database Metrics Systems Strategy 255

Dynatrace

FEBRUARY 10, 2021

Metric and configuration storage database was updated to Cassandra 3.0.23 When providing a cluster support archive, you can now click Analyze support archive with Dynatrace button to automatically upload it to Mission Control instead of downloading it manually and uploading it to the Support JIRA service. Sign-in page customization.

Storage 116

Storage Database Metrics 116

Percona

JULY 17, 2023

Apache Cassandra Apache Cassandra, with users across industries, ranks as the 12th most popular database management system ( DB-Engines, July 2023 ). Fault tolerance and linear scalability make Cassandra popular for handling mission-critical data. It manages unstructured data with thousands of writes every second.

Open Source 80

Open Source Database Scalability Software 80

Dynatrace

SEPTEMBER 21, 2020

Cassandra and Elasticsearch will now use JRE 8u265. The JRE was updated to take advantage of performance improvements , the latest security-vulnerability enhancements and bug fixes. All services will be automatically restarted during the upgrade. Other components will now use JRE 11.0.8.

Monitoring 105

Monitoring Performance 105

Dynatrace

OCTOBER 22, 2019

Now, let’s look at a Cassandra process group and see if we can find any CPU-hungry threads and thread groups. At the bottom of the page, you see all the thread groups that Dynatrace has identified in the Cassandra process group. This time, we look at a single Cassandra thread group CompactionExecutor in the method hotspot view.

Java 103

Java Scalability Hardware Architecture 103

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. It seemed that the extra CPU time really was in Cassandra, but how? ## 2.

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

AUGUST 27, 2020

Amazon Managed Apache Cassandra Service (Keyspaces). Amazon Quantum Ledger Database (QLDB). AWS IoT Analytics. AWS IoT Things Graph. Amazon Lex. Amazon Rekognition. AWS RoboMaker. Amazon Machine Learning. Amazon Managed Streaming for Apache Kafka. Amazon SageMaker. AWS Step Functions. AWS OpsWorks. ACM Private CA. AWS Storage Gateway.

AWS 271

AWS Cloud IoT Database 271

Dynatrace

AUGUST 26, 2020

Fix for Cassandra tables size calculation. Resolved issue with connecting to Dynatrace Mission Control via network proxy. APM-250541). Installer and Upgrade. Fixed problem with setting HTTPS proxy in prompted mode. APM-248411). The space calculator will be aware of newly excluded tables. APM-251619). Fixed Cloudflare property pack issues.

Azure 244

Azure Metrics Monitoring Cloud 244

Dynatrace

JULY 30, 2020

Cassandra, Elasticsearch, ActiveGate, Server, and NodeKeeper get their own dedicated JRE. Cluster Management Console. Multi-environment ActiveGates are now displayed in a dedicated tile on the CMC Home page and are available on the Deployment status page. Installation and upgrade. Requirements on binary data are now increased by 1GB.

Hardware 105

Hardware Java Innovation Metrics 105

Dynatrace

MAY 7, 2020

Metric and configuration storage database was updated to Cassandra 3.0.20 Easily configure user action names with enhanced user action naming rules. Dynatrace ServiceNow integration certified for the Orlando release. Other changes. for optimized data replication and resilience.

Storage 104

Storage Analytics Metrics Mobile 104

Dynatrace

AUGUST 16, 2022

They also cover most common technologies, like NGINX, HAProxy, Elasticsearch, and Cassandra. These built-in rules enrich your logs with distributed traces and links to Real User Monitoring insights. Logs from these technologies are parsed out of the box for straightforward analysis. Get started now.

Processing 190

Processing Metrics Monitoring Java 190

Dynatrace

JANUARY 21, 2020

Previously, to check if the operation was finished, a cluster administrator could use a nodetool script to observe data synchronization in Cassandra databases. In large deployments, this operation is time consuming and can take up to a couple of days. See the Cluster Management REST API specification for details on path and payload.

Database 104

Database Code Availability Processing 104

Brendan Gregg

APRIL 14, 2022

The Netflix stack is more diverse than I was expecting, and is explained in detail in the [Netflix tech blog]: The production cloud is AWS EC2, Ubuntu Linux, Intel x86, mostly Java with some Node.js (and other languages), microservices, Cassandra (storage), EVCache (caching), Spinnaker (deployment), Titus (containers), Apache Spark (analytics), Atlas (..)

Java 145

Java Cloud Cache AWS 145

Percona

MARCH 30, 2023

Non-relational databases — which include MongoDB , Apache Cassandra, and others — are favored for storing and processing unstructured data. MongoDB vs. Apache Cassandra MongoDB is a non-relational (NoSQL) open source database program that stores data in JSON-like documents with optional schemas.

Open Source 79

Open Source Database Storage Scalability 79

Dynatrace

SEPTEMBER 13, 2023

Success Rate – Availability Validation with Synthetic Monitoring fetch logs | filter log.source == "logs/requests" | parse content,"JSON:request" | fieldsAdd httpRequest = request[httpRequest] | fieldsAdd httpStatus = httpRequest[status] | fieldsAdd success = toLong(httpStatus < 400) | summarize successRate = sum(success)/count() * (..)

AWS 249

AWS Efficiency Azure Cloud 249

Scalegrid

APRIL 2, 2019

Cassandra, Cockroach, Cosmos DB, Elasticsearch, Teradata and TimescaleDB tied at eighth with 1.28% use each. of databases used with PostgreSQL include Cassandra, Cockroach, Cosmos DB, Elasticsearch, and Teradata. PostgreSQL of course came in first with 85.9% are using Oracle in addition to PostgreSQL, followed by 20.9% using MySQL, 10.0%

Database 185

Database Cloud Open Source Azure 185

Particular Software

JUNE 28, 2021

Google built BigTable, Amazon built Dynamo, Facebook built Cassandra, LinkedIn came up with Voldemort. Next came the dawn of the NoSQL movement, driven at least partially by large companies with no incentive to interoperate. None of these things can talk to each other. Then came REST, or in other words, “something I invented myself over HTTP.”

Network 98

Network Java Google Design 98