Metrics and logs

Monitoring Azure SQL Managed Instance with CNL Logs and Metrics

When you have critical applications and business processes that rely on Azure resources, it’s critical to keep an eye on their availability, performance, and operation. This article describes how to evaluate and alert on monitoring data generated by Azure SQL Managed Instance using the CNIL Metrics and Logs., and with the release of Metrics and …

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Monitoring Azure Virtual Machines with CNL Metrics and Logs

It’s crucial to monitor Azure resources for availability, performance, and operation when you have key applications and business processes that rely on them. This article outlines the monitoring data created by Azure virtual machines (VMs), as well as how to analyze and alert on this data using the features of CNIL Metrics and Logs. We …

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How to Detect and Optimize NUMA in VMware Infrastructure?

NUMA (non-uniform memory access) is a memory architecture that supports multiprocessing where the memory access time is dependent on the memory location relative to the processor, and a CPU may access its own local memory quicker than non-local memory under NUMA. NUMA’s advantages are confined to specific workloads, particularly on servers where data is frequently …

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VMware vSphere ESXi Memory Issues Can Slow Down the Virtual Infrastructure Performance

ESXi is the bare-metal hypervisor and the main component of VMware vSphere that is responsible to run Virtual Machines (VMs) on top of it. ESXi abstracts the underlying hardware resources from the physical server and allocates them to VMs to run workloads and applications. In ESXi hosts, everything is managed by VMKernel who decouples the underlying resources …

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VMware vSphere VM Disk Issues Can Hit Your VM Performance In this modern era, workloads and applications are mainly running on a VMware-based virtualization environment, and VMware administrators are often asked about slow Virtual Machine(VM) performance. To optimize and speed up VM performance, it’s quite challenging for VMware admins due to the involvement of several …

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VMware vSphere VM CPU Issues Can Hit Your VMware Performance VMware vSphere is one of the world’s most known virtualization platforms that allows users to virtualize their servers to provision and manage multiple Virtual Machines (VMs) on a single physical server instead of using a single machine for each application that runs on it. VMware vSphere offers …

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Use Case - Tamper-resistant Clinical Trials


Blockchain PoCs were unsuccessful due to complexity and lack of developers.

Still the goal of data immutability as well as client verification is a crucial. Furthermore, the system needs to be easy to use and operate (allowing backup, maintenance windows aso.).


immudb is running in different datacenters across the globe. All clinical trial information is stored in immudb either as transactions or the pdf documents as a whole.

Having that single source of truth with versioned, timestamped, and cryptographically verifiable records, enables a whole new way of transparency and trust.

Use Case - Finance


Store the source data, the decision and the rule base for financial support from governments timestamped, verifiable.

A very important functionality is the ability to compare the historic decision (based on the past rulebase) with the rulebase at a different date. Fully cryptographic verifiable Time Travel queries are required to be able to achieve that comparison.


While the source data, rulebase and the documented decision are stored in verifiable Blobs in immudb, the transaction is stored using the relational layer of immudb.

That allows the use of immudb’s time travel capabilities to retrieve verified historic data and recalculate with the most recent rulebase.

Use Case - eCommerce and NFT marketplace


No matter if it’s an eCommerce platform or NFT marketplace, the goals are similar:

  • High amount of transactions (potentially millions a second)
  • Ability to read and write multiple records within one transaction
  • prevent overwrite or updates on transactions
  • comply with regulations (PCI, GDPR, …)


immudb is typically scaled out using Hyperscaler (i. e. AWS, Google Cloud, Microsoft Azure) distributed across the Globe. Auditors are also distributed to track the verification proof over time. Additionally, the shop or marketplace applications store immudb cryptographic state information. That high level of integrity and tamper-evidence while maintaining a very high transaction speed is key for companies to chose immudb.

Use Case - IoT Sensor Data


IoT sensor data received by devices collecting environment data needs to be stored locally in a cryptographically verifiable manner until the data is transferred to a central datacenter. The data integrity needs to be verifiable at any given point in time and while in transit.


immudb runs embedded on the IoT device itself and is consistently audited by external probes. The data transfer to audit is minimal and works even with minimum bandwidth and unreliable connections.

Whenever the IoT devices are connected to a high bandwidth, the data transfer happens to a data center (large immudb deployment) and the source and destination date integrity is fully verified.

Use Case - DevOps Evidence


CI/CD and application build logs need to be stored auditable and tamper-evident.
A very high Performance is required as the system should not slow down any build process.
Scalability is key as billions of artifacts are expected within the next years.
Next to a possibility of integrity validation, data needs to be retrievable by pipeline job id or digital asset checksum.


As part of the CI/CD audit functionality, data is stored within immudb using the Key/Value functionality. Key is either the CI/CD job id (i. e. Jenkins or GitLab) or the checksum of the resulting build or container image.

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