Hazelcast

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Welcome to Hazelcast's Google Group! Make sure to visit homepage at https://www.hazelcast.com or documentation at https://docs.hazelcast.com.

Hazelcast Platform is a distributed computation and storage platform for consistently low-latency querying, aggregation and stateful computation against event streams and traditional data sources. It allows you to quickly build resource-efficient, real-time applications. You can deploy it at any scale from small edge devices to a large cluster of cloud instances.

Hazelcast Cloud is managed service that provides all the features of the in-memory storage and data processing engine in a simple cloud-based web application that’s deployed and fully managed by Hazelcast. Leveraging over a decade of our experience and best practices, the result is a high-throughput low-latency service that scales to your needs while remaining simple to deploy.

We also continue to support Hazelcast IMDG and Hazelcast Jet products which were merged into and superseded by Hazelcast Platform.

This forum is the location of public and open source support requests for the Hazelcast community. If you get your questions answered here, please reciprocate by offering help to others in this group.

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Mar 28

Distributed execution using Spring's @Async executor

Is it possible, to code to Spring's @Async for async execution, but then have that method/thread

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Distributed execution using Spring's @Async executor

Is it possible, to code to Spring's @Async for async execution, but then have that method/thread

Mar 28

Mar 27

Hazelcast Jet multiple datasource join slow down machine and high memory usage

Hi Teams, I have create a spring boot application in which we are joining multiple datasources using

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Hazelcast Jet multiple datasource join slow down machine and high memory usage

Hi Teams, I have create a spring boot application in which we are joining multiple datasources using

Mar 27

Nitin Kumar Singh2

Mar 10

Instance.getDistributedObjects() does not list AtomicLong

My code snippet (did not stick in previous message) On Friday, March 10, 2023 at 3:12:15 PM UTC+5:30

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Instance.getDistributedObjects() does not list AtomicLong

My code snippet (did not stick in previous message) On Friday, March 10, 2023 at 3:12:15 PM UTC+5:30

Mar 10

Mar 6

Hazelcast incompatibility

Hi guys, I am using spring session hazelcast 2.7.0 and hazelcast 5.1.3 but getting this error: java.

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Hazelcast incompatibility

Hi guys, I am using spring session hazelcast 2.7.0 and hazelcast 5.1.3 but getting this error: java.

Mar 6

Rakesh Sharma, jo...@hazelcast.com2

Feb 28

Priority Queue comparator class com.hazelcast.collection.impl.queue.model.PriorityElementComparator does not exists in hazecast-4.2.2-all.jar

Hi Rakesh, the PriorityElementComparator class is just a sample name. You'll provide your own

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Priority Queue comparator class com.hazelcast.collection.impl.queue.model.PriorityElementComparator does not exists in hazecast-4.2.2-all.jar

Hi Rakesh, the PriorityElementComparator class is just a sample name. You'll provide your own

Feb 28

nanda kishore makkapati

Feb 16

StaleTaskIdException while fetching result from future

Hello all, We are getting the below exception when we try to fetch the result from a durable executor

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StaleTaskIdException while fetching result from future

Hello all, We are getting the below exception when we try to fetch the result from a durable executor

Feb 16

Michael Horák, Ozan Kılıç4

Feb 8

Hazelcast EntryProcessor executes on all nodes

Heavy operations in entry processors affect the cluster stability. Implement Offloadable interface

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Hazelcast EntryProcessor executes on all nodes

Heavy operations in entry processors affect the cluster stability. Implement Offloadable interface

Feb 8

Joan Balagueró, Vassilis Bekiaris3

Feb 1

Entry processor issue

Hello Joan, this is not a bug. Since the entry was updated by the EntryProcessor, its lastUpdateTime

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Entry processor issue

Hello Joan, this is not a bug. Since the entry was updated by the EntryProcessor, its lastUpdateTime

Feb 1

Joan Balagueró, Ozan Kılıç6

Feb 1

Local entry listener called every 10 seconds

Thanks, it works. On Tuesday, January 31, 2023 at 11:48:37 PM UTC+1 Ozan Kılıç wrote: Before

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Local entry listener called every 10 seconds

Thanks, it works. On Tuesday, January 31, 2023 at 11:48:37 PM UTC+1 Ozan Kılıç wrote: Before

Feb 1

Alexander Shaposhnikov

Jan 25

CPGroupAvailabilityListener

Hi Team, What might be a reason the CPGroupAvailabilityListener methods are not called when CP

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CPGroupAvailabilityListener

Hi Team, What might be a reason the CPGroupAvailabilityListener methods are not called when CP

Jan 25

Alexander Shaposhnikov

Jan 18

Promote cluster members to CP members automatically

Hi, I'd like my cluster members, that are not part of CP Subsystem, be promoted automatically to

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Promote cluster members to CP members automatically

Hi, I'd like my cluster members, that are not part of CP Subsystem, be promoted automatically to

Jan 18

anil kumar, … Joe Sherwin14

Jan 17

How to set an attribute for my local member in Hazelcast 4.1

Poornima, I have questions about this solution. If you're updating an ICache or IMap with this

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How to set an attribute for my local member in Hazelcast 4.1

Poornima, I have questions about this solution. If you're updating an ICache or IMap with this

Jan 17

Poornima Baddi, Josef Cacek2

Jan 17

How to set setStringAttribute local member in Hazelcast 5.1.5

Hi Poornima, Changing the attributes was disallowed/removed in 4.0 as the functionality was broken.

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How to set setStringAttribute local member in Hazelcast 5.1.5

Hi Poornima, Changing the attributes was disallowed/removed in 4.0 as the functionality was broken.

Jan 17

Mikhail Alekseev

Jan 16

HZMC metrics ttl

Hi! We use Hazelcast as external distributed cache. Our cluster contains 3 members and 3 clients. We

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HZMC metrics ttl

Hi! We use Hazelcast as external distributed cache. Our cluster contains 3 members and 3 clients. We

Jan 16

Jan 16

Alternate method for setStringAttribute in 5.1.5

Hi, I am upgrading hazelcast from 3.1.2 to 5.1.5. Now, in Hazelcast 5.x, noticed that we cannot set

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Alternate method for setStringAttribute in 5.1.5

Hi, I am upgrading hazelcast from 3.1.2 to 5.1.5. Now, in Hazelcast 5.x, noticed that we cannot set

Jan 16

Mahi Sharma, Lucas Beeler3

Jan 13

Hazelcast version upgrade from 5.0.2 to 5.1.3 is not working on Kubernetes platform

No I am not doing rolling upgrade. I am bringing the entire cluster down and application is

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Hazelcast version upgrade from 5.0.2 to 5.1.3 is not working on Kubernetes platform

No I am not doing rolling upgrade. I am bringing the entire cluster down and application is

Jan 13

Jan 4

hazelcast 5.2.1 alternate method for

config.getNetworkConfig().setConnectionAttemptPeriod(1200)

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hazelcast 5.2.1 alternate method for

config.getNetworkConfig().setConnectionAttemptPeriod(1200)

Jan 4

Idan Osteraicher

Jan 4

How to initialize java Condition in Hazelcast

Hi Team, I'm new to Hazelcast and I'm trying to create java Condition in Hazelcast but I have

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How to initialize java Condition in Hazelcast

Hi Team, I'm new to Hazelcast and I'm trying to create java Condition in Hazelcast but I have

Jan 4

Jan 3

jdk.internal.misc.Unsafe.park

We getting this crash on firebase crashlytics and we are unable to trace this issue in our code seems

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jdk.internal.misc.Unsafe.park

We getting this crash on firebase crashlytics and we are unable to trace this issue in our code seems

Jan 3

Basavaraj Banakar

12/28/22

@Autowired or @Value annotations not working in the Hazelcast MapListener.

@Autowired or @Value annotations not working in the Hazelcast MapListener. Below is my sample code.

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@Autowired or @Value annotations not working in the Hazelcast MapListener.

@Autowired or @Value annotations not working in the Hazelcast MapListener. Below is my sample code.

12/28/22

12/19/22

Hi, is Eureka One still being supported? Trying to port to Spring Boot 3.0 / Spring Cloud 4.0.0 and

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Hi, is Eureka One still being supported? Trying to port to Spring Boot 3.0 / Spring Cloud 4.0.0 and

12/19/22

Rakesh Sharma, Ahmet Mircik2

12/19/22

Split brain protection setting clarification

If default is the only map-config in your app, yes it is true, since all maps will be using this

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Split brain protection setting clarification

If default is the only map-config in your app, yes it is true, since all maps will be using this

12/19/22

Joan Balagueró, ahmet mırçık5

12/16/22

Null owner trying to get the owner of a key

In Hazelcast, partitions are assigned lazily. This means, instance start is not a sufficient

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Null owner trying to get the owner of a key

In Hazelcast, partitions are assigned lazily. This means, instance start is not a sufficient

12/16/22

pratik parshetti, Neil Stevenson2

12/15/22

Unable to run the second pod

Can you post more logs please ? If you're only just starting a project, you'd be better to

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Unable to run the second pod

Can you post more logs please ? If you're only just starting a project, you'd be better to

12/15/22

miloss....@gmail.com, … pratik parshetti8

12/15/22

Kubernetes: "Node failed to start!"

Can you please share the solution. I'm facing same issue. Thanks On Thursday, August 30, 2018 at

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Kubernetes: "Node failed to start!"

Can you please share the solution. I'm facing same issue. Thanks On Thursday, August 30, 2018 at

12/15/22

Shikhar Srivastava, … pratik parshetti12

12/15/22

Couldn't discover Hazelcast members using Kubernetes API

Hi Neil, I'm facing same error and here are the endpoints, 172.18.116.10:8080 Can you please help

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Couldn't discover Hazelcast members using Kubernetes API

Hi Neil, I'm facing same error and here are the endpoints, 172.18.116.10:8080 Can you please help

12/15/22

Andrew Mg, Neil Stevenson7

12/13/22

Changing the hazelcast nodes

The interceptor fires on the node that is responsible for the primary copy. By default the client

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Changing the hazelcast nodes

The interceptor fires on the node that is responsible for the primary copy. By default the client

12/13/22

rob van der boom, ahmet mırçık3

12/13/22

read-backup-data: near cache should not be used ??

aaa thx, that makes sense , thanks that answers question, it was about client side. So near cache is

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read-backup-data: near cache should not be used ??

aaa thx, that makes sense , thanks that answers question, it was about client side. So near cache is

12/13/22

TruszekA, Neil Stevenson2

12/8/22

Hazelcast on Kubernetes

I see this also on https://hazelcastcommunity.slack.com/archives/C015Q2TUBKL/p1670497908580749 ...

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Hazelcast on Kubernetes

I see this also on https://hazelcastcommunity.slack.com/archives/C015Q2TUBKL/p1670497908580749 ...

12/8/22

Akashdeep kaur, Neil Stevenson6

11/29/22

Hazelcast member discovery taking upto 9 minutes

Are the clocks on the Kubernetes nodes synchronised ? Based on the timestamps, 10.244.3.64 starts

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Hazelcast member discovery taking upto 9 minutes

Are the clocks on the Kubernetes nodes synchronised ? Based on the timestamps, 10.244.3.64 starts

11/29/22

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