Upcoming Joint Webinar Tuesday October 24, 2017: How to automate and manage MongoDB & Percona Server for MongoDB

Automate and Manage MongoDB

Automate and Manage MongoDBJoin me on October 24th as the Percona teams join forces with Severalnines for a different perspective on how to automate and manage your MongoDB or Percona Server for MongoDB databases. Severalnine’s Ruairí Newman will join me as we present How to automate and manage MongoDB & Percona Server for MongoDB on Tuesday, October 24, 2017, at 12:00 pm ET and 4:00 pm ET.

During this webinar, we’ll walk you through the key features of Percona Server for MongoDB as compared to MongoDB itself as well as how to manage both “flavors” of MongoDB. This joint webinar by Severalnines and Percona provides attendees with a clear understanding of the differences between the MongoDB Ops Manager and ClusterControl, and how they help automate and manage MongoDB operations. It also provides an introduction to Percona Server for MongoDB and some of its key functionalities as compared to MongoDB itself.

There are many generic tools available, both commercial and open source, to aid with the automation of operational tasks. Some of these tools are even deployed in the database world.

However, there are a small number of specialist domain-specific automation tools available, and we are going to compare the MongoDB-relevant functionality of two of these products: MongoDB’s Ops Manager, and ClusterControl from Severalnines. Attendees should take away a clear understanding of the differences between these tools, and how they help automate and manage MongoDB operations.


  • Introduction to Percona Server for MongoDB
  • How to automate and manage MongoDB
    • Installation and maintenance
    • Complexity of architecture
    • Options for redundancy
    • Comparative functionality
    • Monitoring, dashboard, alerting
    • Backing up your deployments
    • Automated deployment of advanced configurations
    • Upgrading existing deployments

Automate and Manage MongoDBTyler Duzan
Product Manager, Services at Percona
Before joining Percona as a Product Manager, Tyler spent almost 13 years as an operations and security engineer in a variety of different industries. Deciding to take his analytical mindset and strategic focus into new territory, Tyler is applying his knowledge to solving business problems for Percona customers with inventive solutions combining technology and services.


Automate and Manage MongoDBRuairí Newman
Senior Support Engineer at Severalnines
Ruairí Newman is passionate about all things cloud and automation and has worked for MongoDB, VMware and Amazon Web Services among others. He has a background in Operational Support Systems and Professional Services. Before joining Severalnines, Ruairí worked for Huawei Ireland as Senior Cloud Solutions Architect on their Web Services project, where he advised on commodity cloud architecture and Monitoring technologies, and deployed and administered a Research & Development OpenStack lab.


Monitoring Databases: A Product Comparison

Monitoring Databases PMM small

In this blog post, I will discuss the solutions for monitoring databases (which includes alerting) I have worked with and recommended in the past to my clients. This survey will mostly focus on MySQL solutions. 

One of the most common issues I come across when working with clients is monitoring and alerting. Many times, companies will fall into one of these categories:

  • No monitoring or alerting. This means they have no idea what’s going on in their environment whatsoever.
  • Inadequate monitoring. Maybe people in this camp are using a platform that just tells them the database is up or connections are happening, but there is no insight into what the database is doing.
  • Too much monitoring and alerting. Companies in this camp have tons of dashboards filled with graphs, and their inbox is full of alerts that get promptly ignored. This type of monitoring is just as useful as the first option. Alert fatigue is a real thing!

With my clients, I like to talk about what monitoring they need and what will work for them.

Before we get started, I do want to point out that I have borrowed some text and/or graphics from the websites and promotional material of some of the products I’m discussing.

Simple Alerting

Percona provides a Nagios plugin for database alerts: https://www.percona.com/downloads/percona-monitoring-plugins/.

I also like to point out to clients what metrics are important to monitor long term to make sure there are no performance issues. I prefer the following approach:

  • On the hardware level:
    • Monitor CPU, IO, network usage and how it trends monthly. If some resource consumption comes to a critical level, this might be a signal that you need more capacity.
  • On the MySQL server level:
    • Monitor connections, active threads, table locks, row locks, InnoDB IO and buffer pool usage
    • For replication, monitor seconds behind master (SBM), binlog size and replication errors. In Percona XtraDB Cluster, you might want to watch wsrep_local_recv_queue.
  • On the query level:
    • Regularly check query execution and response time, and make sure it stays within acceptable levels. When execution time approaches or exceeds established levels, evaluate ways to optimize your queries.
  • On the application side:
    • Monitor that response time is within established SLAs.

High-Level Monitoring Solution Comparison

PMM MonYOG Severalnines VividCortex SelectStar
Databases Supported MySQL, MongoDB and others with custom addons MySQL MySQL, MongoDB, PostgreSQL MySQL, MongoDB, PostgreSQL, Redis MySQL, MongoDB, PostgreSQL, Hadoop, Cassandra, Amazon Dynamo, IBM DB2, SQL Server, Oracle
Open Source x
Cost Free Subscription per node Subscription per node and free Community Edition Subscription per instance Subscription per instance
Cloud or
On Premises
On premises On premises On premises Cloud with on premises collector Cloud with on premises collector
Has Agents x x
Monitoring x x x x x
Alerting Yes, but requires custom setup x x x x
Replication Topology Management x x
Query Analytics x x x x
Configuration Management x x
Backup Management x
OS Metrics x x  x x x
Configuration Advisors x  x x
Failover Management x x
ProxySQL and
HA Proxy Support
Monitors ProxySQL x






Percona Monitoring and Management (PMM) is a fully open source solution for managing MySQL platform performance and tuning query performance. It allows DBAs and application developers to optimize the performance of the database layer. PMM is an on-premises solution that keeps all of your performance and query data inside the confines of your environment, with no requirement for data to cross the Internet.

Assembled from a supported package of “best-of-breed” open source tools such as Prometheus, Grafana and Percona’s Query Analytics, PMM delivers results right out of the box.

With PMM, anyone with database maintenance responsibilities can get more visibility for actionable enhancements, realize faster issue resolution times, increase performance through focused optimization and better manage resources. More information allows you to concentrate efforts on the areas that yield the highest value, rather than hunting and pecking for speed.

PMM monitors and provides performance data for Oracle’s MySQL Community and Enterprise Servers, as well as Percona Server for MySQL and MariaDB.


In the current version of PMM, custom alerting can be set up. Percona has a guide here: https://www.percona.com/blog/2017/01/23/mysql-and-mongodb-alerting-with-pmm-and-grafana/.


The PMM platform is based on a simple client-server model that enables efficient scalability. It includes the following modules:

  • PMM Client is installed on every MySQL host that you want to monitor. It collects MySQL server metrics, general system metrics, and query analytics data for a complete performance overview. Collected data is sent to the PMM Server.
  • PMM Server aggregates collected data and presents it in the form of tables, dashboards and graphs in a web interface.

Monitoring Databases

MySQL Configuration

Percona recommends certain settings to get the most out of PMM. You can get more information and a guide here: https://www.percona.com/doc/percona-monitoring-and-management/conf-mysql.html.


  • Fast setup
  • Fully supported and backed by Percona
  • Impressive roadmap ahead
  • Monitors your database in depth
  • Query analytics
  • Quick setup docker container
  • Free and open source


  • New, could still have some growing pains
  • Requires agents on database machines



Severalnines ClusterControl provides access to 100+ key database and host metrics that matter to your operational performance. You can visualize historical performance in custom dashboards to establish operational baselines and capacity planning. It lets you proactively monitor and receive advice to address immediate and potential database and server issues, and ships with over 100 built-in advisors or easily-writeable custom advisors for your specific needs. It is very scriptable and customizable with some effort.

Severalnines has a free community version as well as a commercial offering. The free version includes deployment, monitoring and advisors with a Developer Studio (with which users can create their own advisors).

Severalnines is definitely more sysadmin focused. The best part about it is its ability to deploy and manage deployments of your database with almost no command line work.

The community edition of ClusterControl is “free forever”.


ClusterControl is an agentless management and automation software for database clusters. It helps deploy, monitor, manage and scale your database server/cluster directly from ClusterControl user interface.

ClusterControl consists of four components:

Component Package Naming Role
ClusterControl controller (cmon) clustercontrol- controller The brain of ClusterControl. A backend service performing automation, management, monitoring and scheduling tasks. All the collected data will be stored directly inside CMON database
ClusterControl REST API clustercontrol-cmonapi Interprets request and response data between ClusterControl UI and CMON database
ClusterControl UI clustercontrol A modern web user interface to visualize and manage the cluster. It interacts with CMON controller via remote procedure call (RPC) or REST API interface
ClusterControl NodeJS clustercontrol-nodejs This optional package is introduced in ClusterControl version 1.2.12 to provide an interface for notification services and integration with 3rd party tools



  • Agentless
  • Monitors, deploys and manages:
    • Database
    • Configuration
    • Backups
    • Users
  • Simple web GUI to manage your databases, alerts, users, settings
  • Can create custom monitors or jobs
  • Can off-load and compress backups
  • Great support team
  • Rich feature set and multiple databases supported


  • Cost per node
  • UI can occasionally be clunky
  • Query tools lack as compared to other solutions here
  • Metrics and Advisors may not be as powerful or easy to use as other products



MONyog MySQL Monitor and Advisor is a “MySQL DBA in a box” that helps MySQL DBAs manage more MySQL servers, tune their current MySQL servers and find and fix problems with their MySQL database applications before they can become serious problems or costly outages.

MONyog proactively monitors enterprise database environments and provides expert advice on how even those new to MySQL can tighten security, optimize performance and reduce downtime of their MySQL powered systems.

MONyog is more DBA focused and focuses on the MySQL configuration and queries.


MONyog web server runs on Linux, monitoring MySQL on all platforms and also monitoring OS-data on Linux servers. To retrieve OS metrics, MONyog uses SSH. However, with this scenario (MONyog installed on a Linux machine) MONyog web-server/agent cannot collect Windows OS metrics.

Of course, the client where the MONyog output is viewed can be any browser supporting AJAX on any platform. MONyog can be installed on a remote PC as well as the server. It does not require processing, and with agentless monitoring it can collect and retrieve data from the server.


  • Setup and startup within two minutes
  • Agentless
  • Good query tools
  • Manages configuration
  • Great advisors for database tuning built-in
  • Most comprehensive and detailed alerting


  • Cost per node
  • Only supports MySQL


VividCortex is a good cloud-based tool to see what your production databases are doing. It is a modern SaaS database performance monitoring platform that significantly eases the pain of database performance at scale, on distributed and polyglot systems, for the entire engineering team. It’s hosted for you with industry-leading security, and is continuously improved and maintained. VividCortex measures and analyzes the system’s work and resource consumption. The result is an immediate insight into query performance, better performance and quality, faster time-to-market and reduced cost and effort.


VividCortex is the combination of agent programs, APIs and a web application. You install the agents on your servers, they send data to their APIs, and you access the results through the web application at https://app.vividcortex.com. VividCortex has a diagram on their site showing how it works:

Monitoring Databases VividCortex

The agents are self-supervising, managed by an agent called vc-agent-007. You can read more about the agents in the agent-specific documentation. They send primarily time-series metrics to the APIs, at one-second granularity. It sometimes sends additional metadata as well. For example, query digests are required to show what query is responsible for specific query-related metrics.
On the backend, a distributed, fully multi-tenant service stores your data separately from all other customers. VividCortex servers are currently hosted in the Amazon AWS public cloud.


  • Great visibility into query-level performance to pinpoint optimization efforts
  • Granularity, with the ability to identify performance fluctuations down to a one-second resolution
  • Smart anomaly detection using advanced statistics and machine learning to reduce false-positives and make alerts meaningful and actionable
  • Unique collaboration tools, enabling developers to answer many of their own questions and freeing DBAs to be more responsive and proactive.


  • Cloud-based tools may not be desirable in a secure environment
  • Cost
  • Not useful if you lose outside network access during an incident
  • Dependent on AWS availability



SelectStar monitors key metrics for many different database types, and has a comprehensive alerts and recommendations system. SelectStar supports monitoring and alerts on:

  • MySQL, Percona Server for MySQL, MariaDB
  • PostgreSQL
  • Oracle
  • MongoDB
  • Microsoft SQL
  • DB2
  • Amazon RDS and Aurora
  • Hadoop
  • Cassandra

The alerts and recommendations are designed to ensure you have an immediate understanding of key issues — and where they are coming from. You can pinpoint the exact database instance that may be causing the issue, or go further up the chain and see if it’s an issue impacting several database instances at the host level.

Recommendations are often tied to alerts — if you have a red alert, there’s going to be a recommendation tied to it on how you can improve. However, the recommendations pop up even if your database is completely healthy — ensuring that you have visibility into how you can improve your configuration before you actually have an issue impacting performance.


Using agentless collectors, SelectStar gathers data from both your on-premises and AWS platforms so that you can have insight into all of your database instances.

Monitoring Databases SelectStar

The collector is an independent machine within your infrastructure that pulls data from your database. It is low impact in order to not impact performance. This is a different approach from all of the other monitoring tools I have looked at.


  • Multiple database technologies (the most out of the tools presented here)
  • Great visibility into query-level performance to pinpoint optimization efforts
  • Agentless
  • Good query tools
  • Great advisors for database tuning built in
  • Good alerting
  • Fast setup
  • Monitors your database in depth
  • Query analytics


  • Cloud-based tools may not be desirable in a secure environment
  • Cost
  • New, could still have some growing pains
  • Still requires an on-premises collector

So What Do I Recommend?

It depends.” – Peter Z., CEO Percona

As always, I recommend whatever works best for your workload, in your environment, and within the standards of your company’s practices!


Percona Live 2015 Lightning Talks, BoF submission deadline Feb. 13! And introducing “MySQL 101? program

It’s hard to believe that the Percona Live MySQL Conference and Expo is just over two months away (April 13-16 in Santa Clara, California). So if you’ve been thinking about submitting a proposal for the popular “Lightning Talks” and/or “Birds of a Feather” sessions, it’s time to get moving because the deadline to do so if February 13.

Lightning Talks provide an opportunity for attendees to propose, explain, exhort, or rant on any MySQL-related topic for five minutes. Topics might include a new idea, successful project, cautionary story, quick tip, or demonstration. All submissions will be reviewed, and the top 10 will be selected to present during the one-hour Lightning Talks session on Wednesday (April 15) during the Community Networking Reception. Lighthearted, fun or otherwise entertaining submissions are highly welcome. Submit your proposal here.

"MySQL 101" is coming to Percona Live 2015

“MySQL 101″ is coming to Percona Live 2015.

Birds of a Feather (BoF) sessions enable attendees with interests in the same project or topic to enjoy some quality face time. BoFs can be organized for individual projects or broader topics (e.g., best practices, open data, standards). Any attendee or conference speaker can propose and moderate an engaging BoF. Percona will post the selected topics and moderators online and provide a meeting space and time. The BoF sessions will be held Tuesday night, (April 14) from 6- 7 p.m. Submit your BoF proposal here.

This year we’re also adding a new program for MySQL “newbies.” It’s called “MySQL 101,” and the motto of this special two-day program is: “You send us developers and admins, and we will send you back MySQL DBAs.” The two days of practical training will include everything they need to know to handle day-to-day MySQL DBA tasks.

“MySQL 101,” which is not included in regular Percona Live registration, will cost $400. However, the first 101 tickets are just $101 if you use the promo code “101” during checkout.

New: 25-Minute Sessions
On the first day of the conference, Percona is now offering 25-minute talks that pack tons of great information into a shorter format to allow for a wider range of topics. The 25-minute sessions include:

Percona Live 2015 25-Minute Sessions

I also wanted to give another shout-out to Percona Live 2015’s awesome sponsor, which include: VMware, Yahoo, Deep Information Sciences, Pythian, Codership, Machine Zone, Box, Yelp, MariaDB, SpringbokSQL, Tesora, BlackMesh, SolidFire, Severalnines, Tokutek, VividCortex, FoundationDB, ScaleArc, Walmart eCommerce and more.(Sponsorship opportunities are still available.)

The great thing about Percona Live conferences is that there is something for everyone within the MySQL ecosystem – veterans and newcomers alike. And for the first time this year, that community expands to encompass OpenStack. Percona Live attendees can also attend OpenStack Live events. Those events run April 13-14, also at the Hyatt Regency Santa Clara and Santa Clara Convention Center.

OpenStack Live 2015’s awesome sponsors include: PMC Sierra and Nimble Storage!

With so much to offer this year, this is why there are several more options in terms of tickets. Click the image below for a detailed view of what access each ticket type provides.

Percona Live and OpenStack Live 2015 ticket access grid

Register here for the Percona Live MySQL Conference and Expo.

Register here for the OpenStack Live Conference and Expo.

For full conference schedule details please visit the Percona Live MySQL Conference and Expo website and the OpenStack Live Conference Website!

I hope to see you in Santa Clara in a couple months!


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Percona Live 2015 conference sessions announced!

Today we announced the full conference sessions schedule for April’s Percona Live MySQL Conference & Expo 2015 and this year’s event, once again at the Hyatt Regency Santa Clara and Santa Clara Convention Center, looks to be the biggest yet with networking and learning opportunities for MySQL professionals and enthusiasts at all levels.

Conference sessions will run April 14-16 following each morning’s keynote addresses (the keynotes have yet to be announced). The 2015 conference features a variety of formal tracks and sessions related to high availability, DevOps, programming, performance optimization, replication and backup. They’ll also cover MySQL in the cloud, MySQL and NoSQL, MySQL case studies, security (a very hot topic), and “what’s new” in MySQL.

The sessions will be delivered by top MySQL practitioners at some of the world’s leading MySQL vendors and users, including Oracle, Facebook, Google, LinkedIn, Twitter, Yelp, Percona and MariaDB.

Percona Live 2014 conference attendees Sessions will include:

  • “Better DevOps with MySQL and Docker,” Sunny Gleason, Founder, SunnyCloud
  • “Big Transactions on Galera Cluster,” Seppo Jaakola, CEO, Codership
  • “Database Defense in Depth,” Geoffrey Anderson, Database Operations Engineer, Box, Inc.
  • “The Database is Down, Now What?” Jeremy Tinley, Senior MySQL Operations Engineer, Etsy.com
  • “Encrypting MySQL data at Google,” Jeremy Cole, Sr. Systems Engineer, and Jonas Oreland, Software Developer, Google
  • “High-Availability using MySQL Fabric,” Mats Kindahl, Senior Principal Software Developer, MySQL Group, Oracle
  • “High Performance MySQL choices in Amazon Web Services: Beyond RDS,” Andrew Shieh, Director of Operations, SmugMug
  • “How to Analyze and Tune MySQL Queries for Better Performance,” Øystein Grøvlen, Senior Principal Software Engineer, Oracle
  • “InnoDB: A journey to the core III,” Davi Arnaut, Sr. Software Engineer, LinkedIn, and Jeremy Cole, Sr. Systems Engineer, Google, Inc.
  • “Meet MariaDB 10.1,” Sergei Golubchik, Chief Architect, MariaDB
  • “MySQL 5.7 Performance: Scalability & Benchmarks,” Dimitri Kravtchuk, MySQL Performance Architect, Oracle
  • “MySQL at Twitter – 2015,” Calvin Sun, Sr. Engineering Manager, and Inaam Rana, Staff Software Engineer, Twitter
  • “MySQL Automation at Facebook Scale,” Shlomo Priymak, MySQL Database Engineer, Facebook
  • “MySQL Cluster Performance Tuning – The 7.4.x Talk,” Johan Andersson CTO and Alex Yu, Vice President of Products, Severalnines AB
  • “MySQL for Facebook Messenger,” Domas Mituzas, Database Engineer, Facebook
  • “MySQL Indexing, How Does It Really Work?” Tim Callaghan, Vice President of Engineering, Tokutek
  • “MySQL in the Hosted Cloud,” Colin Charles, Chief Evangelist, MariaDB
  • “MySQL Security Essentials,” Ronald Bradford, Founder & CEO, EffectiveMySQL
  • “Scaling MySQL in Amazon Web Services,” Mark Filipi, MySQL Team Lead, Pythian
  • “Online schema changes for maximizing uptime,” David Turner, DBA, Dropbox, and Ben Black, DBA, Tango
  • “Upgrading to MySQL 5.6 @ scale,” Tom Krouper, Staff Database Administrator , Twitter

Of course Percona Live 2015 will also include several hours of hands-on, intensive tutorials – led by some of the top minds in MySQL. We had a post talking about the tutorials in more detail last month. Since then we added two more: “MySQL devops: initiation on how to automate MySQL deployment” and “Deploying MySQL HA with Ansible and Vagrant.” And of course Dimitri Vanoverbeke, Liz van Dijk and Kenny Gryp will once again this year host the ever-popular “Operational DBA in a Nutshell! Hands On Tutorial!

Yahoo, VMWare, Box and Yelp are among the industry leaders sponsoring the event, and additional sponsorship opportunities are still available.

Percona Live 2014 world mapWorldwide interest in Percona Live continues to soar, and this year, for the first time, the conference will run in parallel with OpenStack Live 2015, a new Percona conference scheduled for April 13 and 14. That event will be a unique opportunity for OpenStack users and enthusiasts to learn from leading OpenStack experts in the field about top cloud strategies, improving overall cloud performance, and operational best practices for managing and optimizing OpenStack and its MySQL database core.

Best of all, your full Percona Live ticket gives you access to the OpenStack Live conference! So why not save some $$? Early Bird registration discounts are available through Feb. 1, 2015 at 11:30 p.m. PST.

I hope to see you in April!

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Sneak peek at the Percona Live MySQL Conference & Expo 2015

Sneak peek at the Percona Live MySQL Conference & Expo 2015You know you’ll be there so why not save some $$ by registering now for the Percona Live MySQL Conference & Expo 2015 (April 13-16 in Santa Clara, Calif.). Super Saver registration discounts are available through Dec. 14 at 11:30 p.m. PST. (That’s just 10 days away!)

What to expect this year? The Percona Live 2015 conference committee is putting together another fantastic event for the global MySQL community’s next meeting in April. The full conference agenda will be announced in January, but the initial roster includes:

  • Sunny Bains, Senior Engineering Manager at Oracle; “InnoDB 5.7- What’s New”
  • Yoshinori Matsunobu, Database Engineer at Facebook; “Fast Master Failover Without Data Loss”
  • Jeremy Cole, Senior Systems Engineer at Google, Inc.; “Exploring Your Data With InnoDB Explorer”
  • Tom Krouper, Staff Database Administrator at Twitter; “Upgrading to MySQL 5.6 @ Scale”
  • Jenni Snyder, Database Administrator at Yelp; “Schema changes multiple times a day? OK!”
  • Ike Walker, Database Architect at Flite; “Assembling the Perfect MySQL Toolbox”
  • Jean-François Gagné, Senior System Engineer/Architect at Booking.com; “Binlog Servers at Booking.com”
  • Jeremy Glick, Lead DBA at MyDBAteam, and Andrew Moore, MySQL DBA at Percona; “Using MySQL Audit Plugins and Elasticsearch ELK”
  • Tomáš Komenda, Team Lead and Database Specialist, and Lukáš Putna, Senior Developer and Database Specialist at Seznam.cz; “MySQL and HBase Ecosystem for Real-time Big Data Overviews”
  • Alexander Rubin, Principal Consultant at Percona; “Advanced MySQL Query Tuning”

And while the call for papers deadline has expired, there are still sponsorship opportunities available for the world’s largest annual MySQL event. Sponsors become a part of a dynamic and growing ecosystem and interact with more than 1,000 DBAs, sysadmins, developers, CTOs, CEOs, business managers, technology evangelists, solutions vendors, and entrepreneurs who attend the event.

Current sponsors include:

  • Diamond Plus: VMware
  • Gold: Codership, Pythian
  • Silver: Box, SpringbokSQL, Yelp
  • Exhibit Only: FoundationDB, Severalnines, Tokutek, VividCortex
  • Other Sponsors: MailChimp
  • Media Sponsor: Database Trends & Applications , Datanami, InfoQ , Linux Journal, O’Reilly Media

Sneak peek at the Percona Live MySQL Conference & Expo 2015Percona Live 2015 will feature a variety of formal tracks and sessions related to High Availability, DevOps, Programming, Performance Optimization, Replication and Backup, MySQL in the Cloud, MySQL and NoSQL, MySQL Case Studies, Security, and What’s New in MySQL.

As usual the conference will be held in the heart of Silicon Valley at the Hyatt Regency Santa Clara and Santa Clara Convention Center. But this year Percona has also unveiled OpenStack Live 2015, a new conference that will run in parallel with Percona Live MySQL Conference & Expo 2015 on April 13 and 14.

And don’t forget, Super Saver registration discounts are available through Dec. 14 at 11:30 p.m. PST. I hope to see you in Santa Clara!

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