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nats

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Welcome to natsio, a general discussion list for the NATS Cloud Native Messaging System.

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Madhusudan Samantray

Jan 7

nats-c library usage with libuv

Hello I have already a libuv event loop driving a nodejs libuv client(say client A) via named pipe .

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nats-c library usage with libuv

Hello I have already a libuv event loop driving a nodejs libuv client(say client A) via named pipe .

Jan 7

Jan 7

Key is getting deleted automatically from the bucket

Here is the bucket information nats kv info NATS_SITE_IS_ACTIVE_KV_STORE --user=*** --password=***

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Key is getting deleted automatically from the bucket

Here is the bucket information nats kv info NATS_SITE_IS_ACTIVE_KV_STORE --user=*** --password=***

Jan 7

Maksim Dmitrichenko, Alex Bozhenko5

11/26/25

NATS dissector for Wireshark

> I am not familiar with Wireshark Dissectors. Do you have an example how to use it? You have to

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NATS dissector for Wireshark

> I am not familiar with Wireshark Dissectors. Do you have an example how to use it? You have to

11/26/25

Johan Johansson2

10/22/25

nats-server killed by antivirus after 4-5 minutes

so, a little update. After updating to 2.11.10 the issue doesn't happen anymore. Webroot refuses

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nats-server killed by antivirus after 4-5 minutes

so, a little update. After updating to 2.11.10 the issue doesn't happen anymore. Webroot refuses

10/22/25

Joseph “Jody” Winston, Jean-Noël Moyne3

10/21/25

hub/spoke example

Thanks. On Oct 21, 2025, at 8:17 AM, Jean-Noël Moyne <j...@synadia.com> wrote: Short version of

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hub/spoke example

Thanks. On Oct 21, 2025, at 8:17 AM, Jean-Noël Moyne <j...@synadia.com> wrote: Short version of

10/21/25

Maksim Dmitrichenko, Scott Fauerbach3

10/21/25

SO_RCVBUF/SO_SNDBUF support

Hi Scott! As to my understanding the SO_RCVBUF/SO_SNDBUF options correspond to the net.core.rmem_max/

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SO_RCVBUF/SO_SNDBUF support

Hi Scott! As to my understanding the SO_RCVBUF/SO_SNDBUF options correspond to the net.core.rmem_max/

10/21/25

8/25/25

JWT tool for Python

Hey, I'm trying to set up NATS auth callout in Python (basically writing an auth service). For

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JWT tool for Python

Hey, I'm trying to set up NATS auth callout in Python (basically writing an auth service). For

8/25/25

Brent Kimberley, … Phil Pennock3

6/23/25

Does NATS support RFC 9266?

On 2025-06-22 at 12:00 -0700, Brent Kimberley wrote: > Heading says it all: Does NATS support RFC

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Does NATS support RFC 9266?

On 2025-06-22 at 12:00 -0700, Brent Kimberley wrote: > Heading says it all: Does NATS support RFC

6/23/25

Mike Cardwell, Alberto Ricart2

6/17/25

Point of the .jwt and .nk files generated by nsc?

The creds files are an artifact with secrets, the others are the actual config, and the state of the

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Point of the .jwt and .nk files generated by nsc?

The creds files are an artifact with secrets, the others are the actual config, and the state of the

6/17/25

6/10/25

Hi all, I'm trying to use the per-key TTL (Time To Live) feature in NATS JetStream's Key-

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Hi all, I'm trying to use the per-key TTL (Time To Live) feature in NATS JetStream's Key-

6/10/25

5/29/25

Examples of how to use the new per message TTL with a KV

In case this helps others. I did find an example here: https://github.com/nats-io/nats-server/issues/

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Examples of how to use the new per message TTL with a KV

In case this helps others. I did find an example here: https://github.com/nats-io/nats-server/issues/

5/29/25

Maksim Dmitrichenko

4/8/25

NATS KV locking behavior

Hi! I don't quite understand how KV create/update feature interacts with revisions. I need to

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NATS KV locking behavior

Hi! I don't quite understand how KV create/update feature interacts with revisions. I need to

4/8/25

4/3/25

Import doesn't work from within specific stream

I have two accounts on the same server. Account-A and Account-B. I've used nsc for creating

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Import doesn't work from within specific stream

I have two accounts on the same server. Account-A and Account-B. I've used nsc for creating

4/3/25

3/4/25

Looking for 300K TPS support

Hi, I am looking for 400K TPS support in NATS with active-active on prem solutions. I am interested

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Looking for 300K TPS support

Hi, I am looking for 400K TPS support in NATS with active-active on prem solutions. I am interested

3/4/25

2/21/25

Can't get messages from server A in server B using LeafNodes

Hi there, I need some help with NATS leaf nodes and JetStream. Here's my setup: Local Setup (

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Can't get messages from server A in server B using LeafNodes

Hi there, I need some help with NATS leaf nodes and JetStream. Here's my setup: Local Setup (

2/21/25

Mohamed Shahir, Alex Bozhenko3

2/20/25

Production Issue with NATs on AKS 1.30.x – Intermittent NoStreamResponseError

Thank you, Alex, for your suggestion. We have completed the upgrade and are currently testing to

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Production Issue with NATs on AKS 1.30.x – Intermittent NoStreamResponseError

Thank you, Alex, for your suggestion. We have completed the upgrade and are currently testing to

2/20/25

Rois Thomas, Alex Bozhenko3

1/30/25

Doubt regarding applying retention policy for jetstream

Hey, let me be more specific. I deployed NATS to my cluster through HELM values. Then I got a docker

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Doubt regarding applying retention policy for jetstream

Hey, let me be more specific. I deployed NATS to my cluster through HELM values. Then I got a docker

1/30/25

musa burak erdihan

1/29/25

Synchronizing Events Between Two NATS Clusters with JetStream

I am using a microservices architecture with event sourcing and leveraging NATS as the communication

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Synchronizing Events Between Two NATS Clusters with JetStream

I am using a microservices architecture with event sourcing and leveraging NATS as the communication

1/29/25

Iyyasamy Murugesan

12/16/24

Redis alternative for storing JWT Tokens

Hi, I am developing an Accounting and Inventory Cloud application with Golang as the backend.

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Redis alternative for storing JWT Tokens

Hi, I am developing an Accounting and Inventory Cloud application with Golang as the backend.

12/16/24

12/10/24

The problem of high bandwidth usage of nats service

My nats is in cluster mode. I tried to traverse the for loop multiple times and start multiple

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The problem of high bandwidth usage of nats service

My nats is in cluster mode. I tried to traverse the for loop multiple times and start multiple

12/10/24

Aashish, Lev Brouk6

11/18/24

NATS msg publish failing while using js_PublishMsgAsync function of nats c lib

Does anyone know what might be the issue here? On Thursday, 14 November 2024 at 21:05:48 UTC+5:30

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NATS msg publish failing while using js_PublishMsgAsync function of nats c lib

Does anyone know what might be the issue here? On Thursday, 14 November 2024 at 21:05:48 UTC+5:30

11/18/24

M Raja, Scott Fauerbach2

10/28/24

Subject: Request for Example Code: Java Pub-Sub with File Persistence using NATS JetStream

The Java JNats Client repo is a great place to start. At the top of the page are several links to

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Subject: Request for Example Code: Java Pub-Sub with File Persistence using NATS JetStream

The Java JNats Client repo is a great place to start. At the top of the page are several links to

10/28/24

10/24/24

Redelivery of acknowledged messages when rebooting NATS nodes in cluster

We are doing some torture tests to see how the nats cluster will behave when a node or two goes down,

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Redelivery of acknowledged messages when rebooting NATS nodes in cluster

We are doing some torture tests to see how the nats cluster will behave when a node or two goes down,

10/24/24

10/13/24

UI have an odd throttling requirement

Hi, I am currently designing a system to event source and process IOT device readings, from

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UI have an odd throttling requirement

Hi, I am currently designing a system to event source and process IOT device readings, from

10/13/24

MrG35Mon, Derek Collison4

9/9/24

TLS ciphers setting for NATS-server

These are now ignored with recent versions of Go.. On Fri, Jun 21, 2024 at 3:23 PM Derek Collison

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TLS ciphers setting for NATS-server

These are now ignored with recent versions of Go.. On Fri, Jun 21, 2024 at 3:23 PM Derek Collison

9/9/24

Ben Basil, Byron Ruth3

6/18/24

Stream data from AWS IoT Core to NATS

Hi, We have implemented NATS cluster with 3 pods in AWS EKS and it's working good thanks for you

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Stream data from AWS IoT Core to NATS

Hi, We have implemented NATS cluster with 3 pods in AWS EKS and it's working good thanks for you

6/18/24

Chuck Harrison, Jean-Noel Moyne3

6/13/24

Nats *server* on android/ios mobile

In general mobile devices OSes are pretty locked down and don't let you run a 'daemon' or

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Nats *server* on android/ios mobile

In general mobile devices OSes are pretty locked down and don't let you run a 'daemon' or

6/13/24

Andrzej Kolodziej, Jean-Noel Moyne2

6/13/24

Invalidate idle connections

It has to be driven by the application, not the server. NATS is real-time pub/sub and as such new

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Invalidate idle connections

It has to be driven by the application, not the server. NATS is real-time pub/sub and as such new

6/13/24

Aasmi Mehta, Lev Brouk3

6/13/24

URL encoding for connection

Added in https://github.com/nats-io/nats.c/pull/765, will go in the v3.9.0 release. On Tuesday, June

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URL encoding for connection

Added in https://github.com/nats-io/nats.c/pull/765, will go in the v3.9.0 release. On Tuesday, June

6/13/24

Roopali Maurya, Scott Fauerbach4

6/11/24

Subject wise metrics in jetstream

I suggest you post this in the public slack https://natsio.slack.com/ On Tuesday, April 2, 2024 at 6:

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Subject wise metrics in jetstream

I suggest you post this in the public slack https://natsio.slack.com/ On Tuesday, April 2, 2024 at 6:

6/11/24

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