Extremely fast, centralised, Java logger that doesn't slow down your system

Chronicle Logger is able to aggregate all your logs to a central store; it has built-in resilience, so you will never lose messages.

What is Chronicle Logger?

Chronicle Logger supports most of the standard logging APIs including slf4j, sun logging, common logging, log4j.

Most programs require the logging of large amounts of data; this is especially true in trading systems where it is a regulatory requirement. Loggers can affect your system performance, therefore logging is sometimes kept to a minimum, With Chronicle Logger we aim to eliminate this added overhead, freeing your system to focus on the business logic.

More information

Maven: Download

Maven: Log4J 1 Download 

Maven: Log4J 2 Download

Maven: SLF4J Download

Maven: Logback Download

GitHub: Source Code

Source Code Documentation: JavaDoc

StackOverflow: Questions

Chronicle Logger Features

Log messages faster, without changing your logging API

Log without losing any data, even in the event of a system failure

Aggregate logs across libraries, processes or machines

Supports over one million messages per-second per-node

Multiple aggregating nodes to process your logs

Supports querying of messages and real-time event-driven processing of messages

How does it work?

Chronicle uses a memory mapped file to continuously journal messages, chronicles file-based storage will slowly grow in size as more data is written to the queue, the size of the queue can exceed your available memory, you are only constrained by the amount of disk space you have on your server. Chronicle writes data directly into off-heap memory which is shared between java processes on the same server.

Chronicle is very fast, it is able to write and read a message in just two microseconds with no garbage. Typically at the end of each day, you archive the queue and start the next day with a fresh empty queue.

Our partners

We partner with some of the industry's most trusted brands

Partner Logo - MTree
Partner Logo - Lenovo
Partner Logo - Speedment Logo
Partner Logo - Red Hat
Partner Logo - Reactive Markets
Partner Logo - Nvidia
Mellanox Partner Logo
SiegeFX Logo

Want to learn more? See the benefits of Chronicle's products in action

At Chronicle, we believe less is more. Learn more about why and how Chronicle can support your business and how it can increase efficiency and streamline your systems and workflows by speaking with one of our experts.

We can also offer you our release notes.

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