MongoDB Installation on Microsoft Azure Cloud Virtual Machine
MongoDB Installation on Microsoft Azure Cloud Virtual Machine [root@DBVersity ~]# sudo rpm –import https://packages.microsoft.com/keys/microsoft.asc [root@DBVersity ~]# [root@DBVersity ~]# sudo sh -c ‘echo -e “[azure-cli]\nname=Azure CLI\nbaseurl=https://packages.microsoft.com/yumrepos/azure-cli\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc” > /etc/yum.repos.d/azure-cli.repo’ [root@DBVersity ~]# [root@DBVersity ~]# cat /etc/yum.repos.d/azure-cli.repo [azure-cli] name=Azure CLI baseurl=https://packages.microsoft.com/yumrepos/azure-cli enabled=1 gpgcheck=1 gpgkey=https://packages.microsoft.com/keys/microsoft.asc [root@DBVersity ~]# [root@DBVersity ~]# sudo yum install azure-cli Loaded plugins: langpacks, product-id, search-disabled-repos azure-cli | 2.9 kB 00:00:00 azure-cli/primary_db | …
MongoDB Transactions
http://dbversity.com/wp-content/uploads/2019/05/MongoDB_Transactions_certification.docx
MongoDB Developer Certification – Practice tests
1. A collection in MongoDB is a group of: Related documents Databases Schema Rows Explanation: Answer: (a) Explanation: A collection in MongoDB is a group of related documents. 2. Select the correct query to find all the users whose age…
Understanding MongoDB Journal, Index Data and Diagnostics Files …
There is no available tool to read/view the index files or journal files for a mongod instance. You can inspect the diagnostic.data/metrics.* files using the bsondump utility. The contents are outputs of the db.serverStatus() command saved in a binary format. The index files and journal files should not…
YCSB Automated for MongoDB Benchmarkds
http://dbversity.com/wp-content/uploads/2019/02/YCSB_MongoDB_Benchmarks_indexes_on_different_datastores.docx
Mongo Compass Vs Studio 3T – Comparision
http://dbversity.com/wp-content/uploads/2019/02/Studio3Tvs.MongoDBCompass-featurecomparison.pdf
Numberly Moves from MongoDB to Scylla to Simplify Operations and Reduce Costs
Numberly is a leading programmatic advertising firm that helps brands collect and activate consumer data across digital channels. The company’s multi-platform, multi-device, multi-format solutions include real-time bidding, targeted display advertising, CRM program and an advanced data management platform. A big…
Building a MongoDB 4.0.2 Sharded Cluster
http://dbversity.com/wp-content/uploads/2019/01/Building-a-Sharded-Cluster.docx
Depth of nested fields in MongoDB
var spaceChar = ‘ ‘; function getParentNames(jsstr, n, pos) { if (n <= 1) { return “”; } else { var spacesBeforeParent = jsstr.substr(pos, n) + ‘”‘; var indexParent = jsstr.lastIndexOf(spacesBeforeParent, pos); if (indexParent > 0) { var posParent =…
How to Rock with MyRocks !!
Please join Percona’s Chief Technology Officer, Vadim Tkachenko as he presents “How to Rock with MyRocks” on, Thursday, January 17th at 10:00 AM PST (UTC-8) / 1:00 PM EST (UTC-4). MyRocks is a new storage engine from Facebook and is…