About ChistaDATA Inc.
We are an full-stack ClickHouse infrastructure operations Consulting, Support and Managed Services provider with core expertise in performance, scalability and data SRE. Based out of California, Our consulting and support engineering team operates out of San Francisco, Vancouver, London, Germany, Russia, Ukraine, Australia, Singapore and India to deliver 24*7 enterprise-class consultative support and managed services. We operate very closely with some of the largest and planet-scale internet properties like PayPal, Garmin, Honda cars IoT project, Viacom, National Geographic, Nike, Morgan Stanley, American Express Travel, VISA, Netflix, PRADA, Blue Dart, Carlsberg, Sony, Unilever etc

How to configure ClickHouse Keeper?

Configuring ClickHouse Keeper? ClickHouse Keeper is a built-in solution with ClickHouse Server for implementing ClickHouse Replication solutions for horizontal scalability across nodes and clusters. So you don’t have to worry about ZooKeeper installation and configuration […]

ClickHouse Installation

ClickHouse Installation on Linux, FreeBSD and macOS  Ubuntu or Debian sudo apt-get install apt-transport-https ca-certificates dirmngr sudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv 8919F6BD2B48D754 echo “deb https://packages.clickhouse.com/deb stable main” | sudo tee \ /etc/apt/sources.list.d/clickhouse.list sudo apt-get […]

Not able to connect with my ClickHouse Server

Why I am not connected to my ClickHouse server?  There are several reasons for unsuccessful connection incidents to ClickHouse Server. The most common among those is “Connection reset by peer while reading from Socket” so […]

Why ClickHouse works better than MapReduce?

Why we used ClickHouse for Real-Time Analytics and not something like MapReduce  Systems like MapReduce is  distributed computing ecosystem built to reduce Data Infrastructure Operations based on Distributed Sorting. Distributed Sorting is definitely not an […]

Troubleshooting ZooKeeper

Troubleshooting ZooKeeper Operating Environment Monitoring It is important to monitor the ZK environment (hardware, network, processes, etc…) in order to more easily troubleshoot problems. Otherwise, you miss out on important information for determining the cause […]

Swiss PGDay 2022

The Swiss conference on PostgreSQL Swiss PGDay 2022 Friday, July 1, 2022 OST Eastern Switzerland University of Applied Sciences, Campus Rapperswil (Switzerland) Covid-19: No pandemic-related restrictions are expected on the Rapperswil campus. Nevertheless, we appeal […]

ClickHouse Memory Configuration

ClickHouse Memory Configuration Settings max_server_memory_usage​ Limits total RAM usage by the ClickHouse server. Possible values: Positive integer. 0 — Auto. Default value: 0. Additional Info The default max_server_memory_usage value is calculated as memory_amount * max_server_memory_usage_to_ram_ratio. […]

Configuring ClickHouse for Logging

How to Configure ClickHouse for Logging? <?xml version=”1.0″?> <!– NOTE: User and query level settings are set up in “users.xml” file. If you have accidentally specified user-level settings here, server won’t start. You can either […]

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