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What is Symas LMDB?

Symas LMDB stands out as a remarkably fast and memory-efficient database created specifically for the OpenLDAP Project. By employing memory-mapped files, it combines the rapid read capabilities typical of purely in-memory databases with the durability characteristic of traditional disk-based systems. Notably, despite its small footprint of just 32KB of object code, LMDB delivers exceptional performance; it truly exemplifies the ideal 32KB solution. The efficiency and compact design of LMDB are crucial to its outstanding functionality. For developers looking to implement LMDB in their projects, Symas offers fixed-price commercial support that enhances the integration process. Ongoing development is actively pursued in the mdb.master branch of the OpenLDAP Project’s git repository, ensuring that it remains current and effective. Furthermore, LMDB has gained recognition in a variety of notable products and scholarly articles, underscoring its adaptability and efficacy in different applications. This widespread acclaim reinforces LMDB’s reputation as an essential asset for developers in the tech community. Additionally, its unique features continue to attract interest from developers seeking robust database solutions.

What is HotKV?

HotKV is a commercial, Redis-compatible in-memory data storage solution designed specifically for application developers and infrastructure teams. It utilizes a C++20 server that effectively processes commands across multiple CPU cores and supports both RESP2 and RESP3 clients, while also providing features like persistence, Lua scripting, clustering, key-value operations, and vector similarity searching. Furthermore, it offers additional modules for prompt and semantic caching, retrieval-augmented generation (RAG), as well as monitoring the usage and budgets associated with large language models (LLMs) and memory for AI agents; these AI functionalities are available through HotKV Cloud's Performance and Scale plans or via a licensing option for on-premises deployments. HotKV Cloud functions as a managed service with dedicated instances, while the On-Premise option is compatible with x86_64 or ARM64 Linux systems, which allows it to integrate seamlessly into a customer's existing infrastructure. Since the compatibility of Redis commands and behaviors can vary, it is essential for teams to verify that all required commands and features are supported prior to migration, ensuring a seamless transition that maximizes application performance. Moreover, the comprehensive features offered by HotKV empower teams to effectively handle workloads and significantly improve their applications' overall capabilities, facilitating enhanced productivity and innovation.

Media

Media

No images available

Integrations Supported

LDAP

Integrations Supported

Claude
Cursor
LangChain
LangGraph
LiteLLM
LlamaIndex
Model Context Protocol (MCP)
OpenAI
Vercel AI SDK

API Availability

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

$0.03/hour
HotKV Cloud Starter starts at $0.03/hour and is billed monthly or yearly in advance. Starter instances have 2 vCores, 2–8 GB RAM, and 10–40 GB disk; prices vary by region and instance size. On-premise licensing is separate.

Supported Platforms

SaaS
Windows
Linux

Supported Platforms

SaaS
On-Prem
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Symas Corporation

Date Founded

1999

Company Location

United States

Company Website

symas.com/lmdb/

Company Facts

Organization Name

HotKV Ltd

Date Founded

2026

Company Location

United Kingdom

Company Website

hotkv.com

Categories and Features

Categories and Features

In-Memory Databases

Not specified

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