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Showing entries 1 to 10 of 261 10 Older Entries

Displaying posts with tag: mongodb (reset)

Utilizing OpenStack Trove DBaaS for deployment management
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Trove is used for self service provisioning and lifecycle management for relational and non-relational databases in an OpenStack cloud. Trove provides a RESTful API interface that is same regardless of the type of database. CLI tools and a web UI via Horizon are also provided wrapping Trove API requests.

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MongoDB Administration Checklist for MySQL DBAs
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In this blog, I discuss a MongoDB administration checklist designed to help MySQL DBAs.

If you are MySQL DBA, starting MongoDB administration is not always an easy transition. Although most of the concepts and even implementation are similar, the commands are different. The following table outlines the typical MySQL concepts and DBA tasks (on the left) to corresponding MongoDB ones (on the right). If you happen to be a MongoDB DBA and want to learn MySQL administration, you can use the same table looking from right to left.

I’ve also created a webinar, …

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Webinar Thursday May 19, 2016: MongoDB administration for MySQL DBA
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Please join Alexander Rubin, Percona Principal Consultant, for his webinar MongoDB administration for MySQL DBA on Thursday, May 19 at 10 am PDT (UTC-7).

If you are a MySQL DBA and want to learn MongoDB quickly – this webinar is for you. MySQL and MongoDB share similar concepts so it will not be hard to get up to speed with MongoDB.

In this talk I will explain the following …

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smartctl and Samsung 850 EVO
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I have 3 small servers at home for performance testing. Each is an Intel NUC with 8G of RAM and a core i3 via 5i3RYH.  These work quietly under my desk. I have been collecting results for MongoDB and MySQL to understand storage engine performance and efficiency. I use them for single-threaded workloads to learn when storage engines sacrifice too much performance at low concurrency to make things better at high concurrency.

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TRIM, iostat and Linux
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I use iostat and vmstat to measure how much CPU and storage is used during my performance tests. Many of the database engines have their own counters to report disk IO but it is good to use the same measurement across engines. I use the "-k" option with iostat so it reports KB written per second per device.

The rate of writes to storage can be overstated by a factor of two in one case and I don't think this is widely known. When TRIM is done for an SSD then the Linux kernels that I use report that as bytes written. If I create an 8G file then I will see at least 8G of writes …

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Creating Geo-Enabled applications with MongoDB, GeoJSON and MySQL
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This blog post will discuss creating geo-enabled applications with MongoDB, GeoJSON and MySQL.

Introduction

Recently I published a blog post about the new GIS features in MySQL 5.7. Today I’ve looked into how to use MongoDB (I’ve tested with 3.0 and 3.2, with 3.2 being much faster) for the same purpose. I will also talk …

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Percona Server for MongoDB 3.0.9-1.4 is now available
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Percona is pleased to announce the release of Percona Server for MongoDB 3.0.9-1.4 on March 11, 2016. Download the latest version from the Percona web site or from the Percona Software Repositories.

Percona Server for MongoDB is an enhanced, open source, fully compatible, highly scalable, …

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Use VividCortex to View WiredTiger Metrics and Charts for MongoDB
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VividCortex is designed to offer its users as much access and visibility into their database systems as possible. With that in mind, we're excited to let all of our MongoDB users know that VividCortex is capable of capturing, displaying, and navigating metrics and charts produced in MongoDB's powerful WiredTiger storage engine. 

Beginning with MongoDB version 3.0, users will have the option of selecting one of two storage engines: the default MMAPv1 engine, as used in prior MongoDB releases; or the new WiredTiger engine. As …

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Sometimes a Variety of Databases is THE Database You Need
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We were just leafing through the 2015 edition of The DZone Guide to Database and Persistence Management, and we noticed some interesting stats in the guide's included survey, about which we'd like to share some observations. The survey is one of the ebook's central features, and it includes feedback from over 800 IT Professionals, with 63% of those respondents coming from companies with over 100 employees and 69% with over 10 years of experience -- they represent a significant and important cross-section of our industry.

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RocksDB vs the world for loading Linkbench tables
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I like RocksDB, MyRocks and MongoRocks because they are IO efficient thanks to excellent compression and low write-amplification. It is a bonus when I get better throughput with the RocksDB family. Here I show that RocksDB has excellent load performance and to avoid benchmarketing the context is loading Linkbench tables when all …

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Showing entries 1 to 10 of 261 10 Older Entries

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