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Questions tagged [hazelcast]

Hazelcast is an open source In-Memory Data Grid platform. The architecture supports high scalability and data distribution in a clustered environment. It supports auto-discovery of nodes and intelligent synchronization.

Hazelcast is an open source In-Memory Data Grid platform. The architecture supports high scalability and data distribution in a clustered environment.

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Using Hazelcast on Android gives random errors

I'm trying to use Hazelcast on Android. I can include the dependency and the predefined "Hello World" will show up nicely without error. As soon as I put this code into my Activity (i.e. starting to use Hazelcast) it gives me an…
ProCx
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KAFKA compared to modern In Memory Memory Data Grid (IMDG)

I have some IMDG experience I am rather new to KAFKA. I am trying to understand the use case for Kafka. I understand it is a streaming/messaging platform. A lot of its issues have some contra parts in the modern In Memory Data Grids. Can you shed a…
Alexander Petrov
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Akka Streams. Control The Number of Items Being Processed in Akka Streams At One Time

Akka streams reduces my boilerplate code significantly and contains many useful features. However, I need to be able to limit the speed at which items are processed. The problem is that I am feeding a Hazelcast queue attached to a source links of…
Andrew Scott Evans
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Java high scalable application with Hazelcast

I'm developing high-scalable application, so I decided to use Hazelcast for it. I have one frontend server, which puts messages for nodes. Every node in cluster change it's workload in background thread in distributed map, so, frontend server choose…
opedge
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Benchmarks of Apache Geode

I'm doing some research and I need benchmarks of Apache Geode maybe in comparison with Redis or Hazelcast. Would be appreciated if someone could point me to such. In one of presentations of Pivotal I saw some benchmarks but they just shown that…
Andrii Pischanski
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Hazelcast partition counts and thread concurrency

In the Master Hazelcast eBook under "17.4.1. Partition-aware Operations" it states: To execute partition-aware operations, an array of operation threads is created. A single operation thread executes operations for multiple partitions; Each…
KennethJ
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Hazelcast working in mutlinode

In mutinode lets say N1, N2 and N3. I have been directly hitting to the node N1 but what happens is hazelcast communicates to N2 and N3 for some reason. Its not an Heart beat check since its configured for 1 min, But I observed using the wireshark,…
Harry
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Hazelcast 3.6.1 "There is no suitable de-serializer for type" exception

I am using Hazelcast 3.6.1 to read from a Map. The object class stored in the map is called Schedule. I have configured a custom serializer on the client side like this. ClientConfig config = new ClientConfig(); SerializationConfig sc =…
Ayub Malik
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Hazelcast SlowOperationDetector to identify operations with less than 1 sec execution time

I have a performance use case by which I need to identify certain process() calls in the EntryProcessor which takes more than 300 milliseconds. I tried to make use of SlowOperationDetector with the following configuration.