Enterprise-class 24*7 Consultative Support for ClickHouse  

ChistaDATA Enterprise-class 24*7 Consultative Support for ClickHouse creates unbiased guidance for installation, configuration, capacity planning/sizing, performance optimization, scalability and Data SRE. Our team of globally distributed ClickHouse Support Engineers are available 24*7 assisting you in troubleshooting ClickHouse infrastructure operations more intuitively.  We strongly believe in delivering highly professional and elite-class ClickHouse Consultative Support with guaranteed responsiveness for delivering optimal, scalable, reliable, fault-tolerant and secured Database Infrastructure Operations for web-scale Data Analytics. ChistaDATA Support connect with customers via online ticketing systems, Slack channel, Phone, Zoom-based bridge calls and Email. ChistaDATA full-stack optimization team regularly schedule for performance audit to identify configuration issues, Schema engineering issues, expensive SQLs and security issues to troubleshoot ClickHouse more proactively. Please download ChistaDATA 24*7 Consultative Support and Managed Services flyer from here to understand more in detail about our offerings.

☛ Why we recommend ClickHouse over many other columnar database systems ?

• Compact data storage – Ten billions UInt8-type values should exactly consume 10GB uncompressed to efficiently use available CPU . Optimal storage even when uncompressed benefit performance and resource management . ClickHouse is built is store data efficiently without any garbage .
• CPU efficient – Whenever possible, ClickHouse operations are dispatched on arrays, rather than on individual values. This is called “vectorized query execution,” and it helps lower the cost of actual data processing.
• Data compression – ClickHouse supports two kinds of compression LZ4 and ZSTD . LZ4 is faster than ZSTD but compression ratio is smaller .ZSTD is faster and compress better  than traditional Zlib but slower than LZ4 .  We recommend customers LZ4 , when I/O is fast enough so decompression speed will become a bottleneck . When using super ultra fast disk subsystems you have an option to specify “none” compression . ZSTD is recommended when I/O is the bottleneck in queries with large range scans .
• Can store data in disk – The columnar database systems like SAP HANA and Google PowerDrill can only work in the RAM .
• Massively Parallel Processing – ClickHouse is capable of Massively Parallel Processing very large / complex SQL(s) optimally and cost efficiently
• Built for web-scale data analytics – ClickHouse support sharding and distributed processing, This makes ClickHouse most preferred columnar database system for web-scale . Each shard in ClickHouse can be a group of replicas addressing maximum reliability and fault tolerance .
• ClickHouse support Primary Key – ClickHouse permits real-time data updates with primary key (there will be no locking when adding data) . Data is sorted incrementally using the merge tree to perform queries on the range of primary key values.
• Built for statistical analysis and support partial aggregation – ClickHouse is statistical query analysis ready columnar database store supporting aggregate functions for approximated calculation of the number of various values, medians, and quantiles. ClickHouse support aggregation for a limited number of random keys, instead for all the keys . You can query on a part (sample) of data and generate approximate result reducing disk I/O operations considerably .
• Supports SQL – ClickHouse supports SQL, Subqueries are supported in FROM, IN, and JOIN clauses, as well as scalar subqueries. Dependent subqueries are not supported.
• Supports data replication – ClickHouse supports asynchronous multi-master and master-slave replication .

☛ ClickHouse Enterprise Support (24*7)

You get access to our seasoned ClickHouse support team 24*7 for an fraction of cost to hiring a full-time Sr. level ClickHouse consultant . We will help you in building an planet-scale data analytics platform using ClickHouse which is optimal, scalable and highly available.

• Enterprise-Class ClickHouse Support
  • Technical Account Manager to clearly understand your business goals and orchestrate our support operations.
  • 30 Minute Response Time on Severity 1 (Urgent) Issues.
  • 10 Named Customer Contacts.
  • Support channels – Phone, Email, Slack, Skype, Google Hangouts and Phone.
  • Technical support — 30 minute response time (S1)
    • Support -levels – We have very well defined support infrastructure operations function:
      • Severity 1– Immediate attention needed, The customer’s business is severely impacted and database infrastructure is unavailable.
        • Response time (SLA) – 30 minutes.
      • Severity 2– Customer database infrastructure is available (up and running) but performance / scalability issues are directly impacting business.
        • Response time (SLA) – 12 hours. 
      • Severity 3– Low impact situation, Customer business and production infrastructure is functioning normally, but the problem is impacting the development ecosystems, also causing delay in production deployment.
        • Response time (SLA) – 24 hours.
      • Severity 4– Low to no impact situation, It is more about knowing the features and capability of components before considering the adoption.
        • Response time (SLA) – 48 hours. 

• ClickHouse DBA Consultative Support
  • Recommendations for database architecture and design.
  • Recommendations for optimal SQL engineering.
  • Recommendations for ClickHouse Performance optimization and tuning.
  • Recommendation for index design, optimization and usage.
  • Recommendations for ClickHouse backup and disaster recovery.
  • Recommendations for ClickHouse high availability and auto failover.
  • Recommendations for ClickHouse data archiving and partitioning.
  • Recommendations for ClickHouse maintenance operations.

Further Reading

• Understanding ClickHouse® Database: A Guide to Real-Time Analytics
• Data Fabric Solutions on Cloud Native Infrastructure with ClickHouse
• How ChistaDATA Partners with CTOs to Build Next-Generation Data Infrastructure
• Unlock Real-Time Insights: ChistaDATA’s Data Analytics Services
• ChistaDATA Gen AI Support with ClickHouse
• Transforming Database Infrastructure Engineering and Operations for Performance, Scalability, and High Availability

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In the spirit of freedom, independence and innovation. ChistaDATA Corporation is not affiliated with ClickHouse Corporation