Author - Vinodh Krishnaswamy

What’s Running in My DB? A Journey with currentOp() in MongoDB

currentOp() in MongoDB

I have been working a while with customers, supporting both MongoDB and MySQL technologies. Most of the time when an issue arises, the customers working with MySQL collect most of the information happening in the DB server, including all the queries running that particular time, using “show full processlist;” This information would help us […]

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MongoDB Sharding & Replication 101 – The Community’s Questions Answered!

MongoDB 101 Sharding and Replication

A few weeks ago I sat down and talked about tuning MongoDB memory settings with Mike Grayson, one of our MongoDB Database Engineers here at Percona. If you have not seen the video I would recommend it.  Since then I have heard from people in the community about other topics they would like to […]

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Permissions Issue When Upgrading MongoDB with Custom dbPath or logPath

mongodb permissions issue

In Linux distributions, installing MongoDB for the first time using rpm/dpkg will create a conf file, dbPath, logPath and the init scripts on default paths. This includes the creation of a mongod user/group and provides mongod permissions to both the default dbPath (/var/lib/mongo) and logPath (/var/log/mongodb/mongod.log). Then you edit the settings in the config file […]

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Introduction to Docker and Using Percona Server for MongoDB

mongodb in docker containers

In this blog post, I’ll walk through using Docker containers and discuss the advantages of using them to run multiple versions of Percona Server for MongoDB (PSMDB) instances in the same server. This is particularly useful for local testing. Lots of companies have started to use containers for their applications, due to the advantages […]

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Watch Webinar: Config Database (Shardings) Deep Dive

Deep Dive In the Config Database (Shardings)

Please join Percona’s Senior Support Engineer Vinodh Krishnaswamy as he presents Deep Dive In the Config Database (Shardings).
Watch the Recorded Webinar
In MongoDB, we know the Sharded Cluster can migrate chunks across the Shards and also route a query. But where is this information stored, and how is it used by MongoDB to maintain consistency […]

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