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Anton Gerdessen, Bela Ban2

Feb 10

JGroup reconnect without losing state (Android)

Hi Anton as long as pulling the plug / disconnecting the network cable does not trigger a new view,

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JGroup reconnect without losing state (Android)

Hi Anton as long as pulling the plug / disconnecting the network cable does not trigger a new view,

Feb 10

kumar bava, Bela Ban2

Feb 10

onTimeout errors, cluster frozen, members left.(does use_nio=true help ?)

1. If you didn't see any issues when running on RHEL 7, and you see issues now on RHEL 9, and you

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onTimeout errors, cluster frozen, members left.(does use_nio=true help ?)

1. If you didn't see any issues when running on RHEL 7, and you see issues now on RHEL 9, and you

Feb 10

10/6/25

JGroups 5.5.0 released

https://belaban.blogspot.com/2025/10/jgroups-550-released.html -- Bela Ban | http://www.jgroups.org

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JGroups 5.5.0 released

https://belaban.blogspot.com/2025/10/jgroups-550-released.html -- Bela Ban | http://www.jgroups.org

10/6/25

9/11/25

Checked versus unchecked exceptions

There's a discussion in jgroups-raft about $subject [1] and a PR [2] to remove checked exceptions

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Checked versus unchecked exceptions

There's a discussion in jgroups-raft about $subject [1] and a PR [2] to remove checked exceptions

9/11/25

Kálmán Jantner, Bela Ban7

9/10/25

Customizable list of ciphers in SSL_KEY_EXCHANGE

+1 On 10.09.2025 12:31, Kálmán Jantner wrote: Thank you for the fix and the release as well. On

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Customizable list of ciphers in SSL_KEY_EXCHANGE

+1 On 10.09.2025 12:31, Kálmán Jantner wrote: Thank you for the fix and the release as well. On

9/10/25

Anton Gerdessen, Bela Ban4

9/9/25

JGroups in a pure multicast network

The link you posted below is very old, but still describes the details of writing a protocol. I

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JGroups in a pure multicast network

The link you posted below is very old, but still describes the details of writing a protocol. I

9/9/25

Eoin Mooney, Bela Ban2

9/9/25

state transfer with UPGRADE

To be honest, I haven't worked on the upgrade-xxx projects over the last years. I started the

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state transfer with UPGRADE

To be honest, I haven't worked on the upgrade-xxx projects over the last years. I started the

9/9/25

8/25/25

UFC_NB / MFC_NB

Is anybody using non-blocking flow control (UFC_NB, MFC_NB). IMO, they're pretty useless and I

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UFC_NB / MFC_NB

Is anybody using non-blocking flow control (UFC_NB, MFC_NB). IMO, they're pretty useless and I

8/25/25

Bela Ban, … Christian Fredriksson4

7/23/25

Changing baseline of JGroups from JDK 11 to 17?

Spring also argues for staying with Java 17 for the time being: https://spring.io/blog/2024/10/01/

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Changing baseline of JGroups from JDK 11 to 17?

Spring also argues for staying with Java 17 for the time being: https://spring.io/blog/2024/10/01/

7/23/25

Chintan Mohan Rohila, … Bela Ban4

7/15/25

SYM_ENCRYPT failing on JGroups 5

I assume you've been using SYM_ENCRYPT for a while and it has worked so far... Have you changed

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SYM_ENCRYPT failing on JGroups 5

I assume you've been using SYM_ENCRYPT for a while and it has worked so far... Have you changed

7/15/25

6/16/25

FYI: I added 2 new protocols SIZE and SIZE2, which record the number of messages received per size: [

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FYI: I added 2 new protocols SIZE and SIZE2, which record the number of messages received per size: [

6/16/25

Chintan Mohan Rohila, Bela Ban4

5/27/25

SYM_ENCRYPT not working with JGroups 5

Works, also on 17. I used the sym-encrypt.xml shipped with the JGroups JAR, config of SYM_ENCRYPT:

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SYM_ENCRYPT not working with JGroups 5

Works, also on 17. I used the sym-encrypt.xml shipped with the JGroups JAR, config of SYM_ENCRYPT:

5/27/25

Shahrizal Shaari, Bela Ban2

5/26/25

Any solution to merge asymmetric partition

The design doc is wrong: I never wrote MERGE4, but all the asymmetric merging was placed into MERGE3

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Any solution to merge asymmetric partition

The design doc is wrong: I never wrote MERGE4, but all the asymmetric merging was placed into MERGE3

5/26/25

Chintan Mohan Rohila, Bela Ban2

5/20/25

AUTH protocol in JGroups 5

The reason why MD5Token was removed is discussed in [1] and [2]. You need to prepend your attributes

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AUTH protocol in JGroups 5

The reason why MD5Token was removed is discussed in [1] and [2]. You need to prepend your attributes

5/20/25

Anton Gerdessen, Bela Ban4

5/9/25

JGroup 5 and Android

Which leads to the conclusion that this is an Android problem? Is the port not closed on a real

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JGroup 5 and Android

Which leads to the conclusion that this is an Android problem? Is the port not closed on a real

5/9/25

Chintan Mohan Rohila, Bela Ban3

5/5/25

How to configure custom diagnostics_port in JGroups 5?

I'm fixing the 'probe' section right now, thanks for pointing this out! On 05.05.2025 09:

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How to configure custom diagnostics_port in JGroups 5?

I'm fixing the 'probe' section right now, thanks for pointing this out! On 05.05.2025 09:

5/5/25

4/26/25

Changes to org.jgroups.blocks.atomic.SyncCounter to throw checked Exceptions

https://github.com/belaban/JGroups/pull/900 On Thursday, April 24, 2025 at 12:40:27 PM UTC+2 mzaza (

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Changes to org.jgroups.blocks.atomic.SyncCounter to throw checked Exceptions

https://github.com/belaban/JGroups/pull/900 On Thursday, April 24, 2025 at 12:40:27 PM UTC+2 mzaza (

4/26/25

Chintan Mohan Rohila, Bela Ban2

4/14/25

Rolling upgrade on Kubernetes from JGroups 4 to 5

upgrade-jgroups / upgrade-common currently only support upgrades between 5.2.x and 5.3.3. It should

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Rolling upgrade on Kubernetes from JGroups 4 to 5

upgrade-jgroups / upgrade-common currently only support upgrades between 5.2.x and 5.3.3. It should

4/14/25

Meissa Sakho, … Radoslav Husar4

4/10/25

S3_PING protocole issue

I have adde the missing jar and now I can see from the logs that the access of the AWS bucket looks

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S3_PING protocole issue

I have adde the missing jar and now I can see from the logs that the access of the AWS bucket looks

4/10/25

Chintan Mohan Rohila, Bela Ban3

2/10/25

Application code migration from Jgroups 4 to Jgroups 5

makeReply() used to be in Message, which is now an interface. I guess you can copy the 4.x makeReply(

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Application code migration from Jgroups 4 to Jgroups 5

makeReply() used to be in Message, which is now an interface. I guess you can copy the 4.x makeReply(

2/10/25

Miha Zoubek, … Bela Ban6

1/8/25

UNICAST3.down, docker

I only see a *single* thread dump. What you see might be normal, as the worker thread grabs message(s

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UNICAST3.down, docker

I only see a *single* thread dump. What you see might be normal, as the worker thread grabs message(s

1/8/25

12/3/24

JGroups 5.4 released

I'm happy to annonce that 5.4 was just released. Details can be found here: [1]. Cheers, [1] http

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JGroups 5.4 released

I'm happy to annonce that 5.4 was just released. Details can be found here: [1]. Cheers, [1] http

12/3/24

Ollie Cronan, bel...@gmail.com3

11/21/24

jgroups 2.6.2 - parsing messages

Hi Bela, I appreciate the reply! Unfortunately like a few on this dev group I am just an

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jgroups 2.6.2 - parsing messages

Hi Bela, I appreciate the reply! Unfortunately like a few on this dev group I am just an

11/21/24

Dmitry, … Bela Ban6

10/21/24

Retransmission storms

Increasing xmit_interval in NAKACK2 and UNICAST3 will certainly also help. Note that I created [1]

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Retransmission storms

Increasing xmit_interval in NAKACK2 and UNICAST3 will certainly also help. Note that I created [1]

10/21/24

Bela Ban, … bel...@gmail.com3

8/21/24

Spam and moderation

I don't know; jgroups-dev is (so far) the only one where I had to introduce moderation... On

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Spam and moderation

I don't know; jgroups-dev is (so far) the only one where I had to introduce moderation... On

8/21/24

Chintan Mohan Rohila, Bela Ban5

7/12/24

Members dropping from the Views on Kubernetes

The issue still persist. In a kubernetes cluster channels from one pod are unable to join the cluster

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Members dropping from the Views on Kubernetes

The issue still persist. In a kubernetes cluster channels from one pod are unable to join the cluster

7/12/24

Liviu Ioan, Bela Ban2

6/5/24

Understanding the BARRIER protocol

If you use STATE_TRANSFER (JChannel.getState() API), then BARRIER should be in your config. If you

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Understanding the BARRIER protocol

If you use STATE_TRANSFER (JChannel.getState() API), then BARRIER should be in your config. If you

6/5/24

Liviu Ioan, Bela Ban3

4/15/24

MERGE failed - conflict between MERGE3 and FLUSH

Hi Liviu I'm afraid I won't be able to help, as fixing FLUSH is a throwaway effort, because

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MERGE failed - conflict between MERGE3 and FLUSH

Hi Liviu I'm afraid I won't be able to help, as fixing FLUSH is a throwaway effort, because

4/15/24

Liviu Ioan, Bela Ban4

4/15/24

Understanding the coordinator role and the FLUSH protocol

On 15.04.2024 17:38, Liviu Ioan wrote: Hello, Thank you for your fast reply! The FLUSH protocol

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Understanding the coordinator role and the FLUSH protocol

On 15.04.2024 17:38, Liviu Ioan wrote: Hello, Thank you for your fast reply! The FLUSH protocol

4/15/24

4/7/24

Configuring Gossiprouter for Wildfly 21 and Apache

Hello, Newbie question here. We have a handful of Wildfly 21 app server VM's statically

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Configuring Gossiprouter for Wildfly 21 and Apache

Hello, Newbie question here. We have a handful of Wildfly 21 app server VM's statically

4/7/24

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