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coralblocks
CoralRing
Java2024–2024
coralblocks / CoralRing

CoralRing

CoralRing is an ultra-low-latency, lock-free, garbage-free, batching and concurrent circular queue (ring) in off-heap shared memory for inter-process communication (IPC) in Java across different JVMs using memory-mapped files.

Systems & Infrastructure
Explore on GitHubRead Hacker News discussions
3Distinct people
3Mentions
0Explicit recommenders
222GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

CoralRing is an ultra-low-latency, lock-free, garbage-free, batching and concurrent circular queue (ring) in off-heap shared memory for inter-process communication (IPC) in Java across different JVMs using memory-mapped files.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by 6-hour interval3 dated mentions

Observed mentions: 2024-11-22 13:54:48 UTC to 2024-11-28 11:42:21 UTC.

012024-11-22 12:00:00 UTC to 2024-11-22 18:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsNov 22, 12:002024-11-22 18:00:00 UTC to 2024-11-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-23 00:00:00 UTC to 2024-11-23 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-23 06:00:00 UTC to 2024-11-23 12:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-23 12:00:00 UTC to 2024-11-23 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-23 18:00:00 UTC to 2024-11-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-24 00:00:00 UTC to 2024-11-24 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-24 06:00:00 UTC to 2024-11-24 12:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-24 12:00:00 UTC to 2024-11-24 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-24 18:00:00 UTC to 2024-11-25 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-25 00:00:00 UTC to 2024-11-25 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-25 06:00:00 UTC to 2024-11-25 12:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsNov 25, 06:002024-11-25 12:00:00 UTC to 2024-11-25 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-25 18:00:00 UTC to 2024-11-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-26 00:00:00 UTC to 2024-11-26 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-26 06:00:00 UTC to 2024-11-26 12:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-26 12:00:00 UTC to 2024-11-26 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-26 18:00:00 UTC to 2024-11-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-27 00:00:00 UTC to 2024-11-27 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-27 06:00:00 UTC to 2024-11-27 12:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-27 12:00:00 UTC to 2024-11-27 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-27 18:00:00 UTC to 2024-11-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-28 00:00:00 UTC to 2024-11-28 06:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2024-11-28 06:00:00 UTC to 2024-11-28 12:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsNov 28, 06:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Nov 22, 12:002024-11-22 12:00:00 UTC2024-11-22 18:00:00 UTC110
Nov 22, 18:002024-11-22 18:00:00 UTC2024-11-23 00:00:00 UTC000
Nov 23, 00:002024-11-23 00:00:00 UTC2024-11-23 06:00:00 UTC000
Nov 23, 06:002024-11-23 06:00:00 UTC2024-11-23 12:00:00 UTC000
Nov 23, 12:002024-11-23 12:00:00 UTC2024-11-23 18:00:00 UTC000
Nov 23, 18:002024-11-23 18:00:00 UTC2024-11-24 00:00:00 UTC000
Nov 24, 00:002024-11-24 00:00:00 UTC2024-11-24 06:00:00 UTC000
Nov 24, 06:002024-11-24 06:00:00 UTC2024-11-24 12:00:00 UTC000
Nov 24, 12:002024-11-24 12:00:00 UTC2024-11-24 18:00:00 UTC000
Nov 24, 18:002024-11-24 18:00:00 UTC2024-11-25 00:00:00 UTC000
Nov 25, 00:002024-11-25 00:00:00 UTC2024-11-25 06:00:00 UTC000
Nov 25, 06:002024-11-25 06:00:00 UTC2024-11-25 12:00:00 UTC000
Nov 25, 12:002024-11-25 12:00:00 UTC2024-11-25 18:00:00 UTC000
Nov 25, 18:002024-11-25 18:00:00 UTC2024-11-26 00:00:00 UTC000
Nov 26, 00:002024-11-26 00:00:00 UTC2024-11-26 06:00:00 UTC000
Nov 26, 06:002024-11-26 06:00:00 UTC2024-11-26 12:00:00 UTC000
Nov 26, 12:002024-11-26 12:00:00 UTC2024-11-26 18:00:00 UTC000
Nov 26, 18:002024-11-26 18:00:00 UTC2024-11-27 00:00:00 UTC000
Nov 27, 00:002024-11-27 00:00:00 UTC2024-11-27 06:00:00 UTC000
Nov 27, 06:002024-11-27 06:00:00 UTC2024-11-27 12:00:00 UTC000
Nov 27, 12:002024-11-27 12:00:00 UTC2024-11-27 18:00:00 UTC000
Nov 27, 18:002024-11-27 18:00:00 UTC2024-11-28 00:00:00 UTC000
Nov 28, 00:002024-11-28 00:00:00 UTC2024-11-28 06:00:00 UTC101
Nov 28, 06:002024-11-28 06:00:00 UTC2024-11-28 12:00:00 UTC101

What Hacker News says

3 sources
joas_coder·Nov 28, 2024
> Given the documentation says that this is supposedly to be between JVMs, how do they handle the serialize/deserialize? Your transfer object needs to implement MemorySerializable. Below two examples from CoralRing's GitHub: https://github.com/coralblocks/CoralRing/blob/main/src/main/... https://github.com/coralblocks/CoralRing/blob/main/src/main/... The second one effectively allows you to send anything you want (as bytes) through the ring, making CoralRing message agnostic.
In Ultra-low-latency, batching and concurrent queue for IPC in Java
kllrnohj·Nov 28, 2024
https://github.com/coralblocks/CoralRing/blob/1168b047e0183c... Am I missing something here or does the BlockingRingConsumer not actually block? And worse doesn't it just return garbage if poll is called without first checking availableToPoll? The example sure looks like it... https://github.com/coralblocks/CoralRing/blob/main/src/main/... Which if so isn't this like 1/4th a library for doing IPC? It doesn't seem to do much itself
In Ultra-low-latency, batching and concurrent queue for IPC in Java

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