# Google Cloud Dataflow vs Hazelcast

**Leader by vioscaleAI score:** Hazelcast

| Attribute | Google Cloud Dataflow | Hazelcast |
|---|---|---|
| **vioscaleAI score** | 44.6 (7% (low)) | 60.7 (56% (medium)) |
| activity.commits_last_30d | - | 80 |
| adoption.dependent_repos | - | 10,433 |
| adoption.github_stars | - | 6,620 |
| adoption.package_downloads_weekly | - | 3,112 |
| content.faq | `[{"answer":"Google Cloud's data processing service for continuous and batch streams, enabling real-time analytics, integration workflows, and ML applications through the Apache Beam framework. It is indexed under Streaming Analytics.","source":"https://cloud.google.com/dataflow","question":"What is Google Cloud Dataflow?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Google Cloud Dataflow, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://cloud.google.com/dataflow","question":"Can Google Cloud Dataflow be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Google Cloud Dataflow, including Apache Beam, Splunk and Google Cloud Notebooks. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cloud.google.com/dataflow","question":"What does Google Cloud Dataflow integrate with?","confidence":0.6}]` | `[{"answer":"Hazelcast is a distributed data platform that provides real-time processing and continuous intelligence capabilities. It supports clustering and integrates with various frameworks and clients. It is indexed under Key-Value Stores.","source":"https://hazelcast.com","question":"What is Hazelcast?","confidence":0.6},{"answer":"Hazelcast supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://hazelcast.com","question":"What platforms does Hazelcast support?","confidence":0.6},{"answer":"Yes. Hazelcast can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://hazelcast.com","question":"Can Hazelcast be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Hazelcast. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Hazelcast not holding them. Always confirm compliance directly before you rely on it.","source":"https://hazelcast.com/blog/health-information-privacy/","question":"What security certifications does Hazelcast have?","confidence":0.7},{"answer":"Yes. Hazelcast is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://www.npmjs.com/package/hazelcast-client","question":"Is Hazelcast open source?","confidence":0.85}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | A cloud-hosted service that processes continuous and batch data workloads at scale, supporting data transformation, analytics, and machine learning pipelines through serverless infrastructure. | A distributed, in-memory computing platform that combines caching, stream processing, and data integration to enable real-time applications with low-latency data access and instant decision-making. |
| features.capabilities | `{"autoscaling":true,"open_source":false,"latency_class":"seconds","deployment_model":"serverless","stateful_processing":true}` | `{"clustering":"replicated","deployment":"self_hosted","autoscaling":true,"consistency":"strong","open_source":true,"persistence":"durable","eviction_ttl":true,"storage_tier":"in_memory","latency_class":"sub-second","pricing_model":"open-source-self-host","streaming_sql":true,"wire_protocol":"custom","pubsub_streams":true,"data_structures":"kv_only","deployment_model":"self-hosted","delivery_guarantee":"exactly-once","stateful_processing":true}` |
| integrations.count | 1 | 6 |
| integrations.list | `[{"name":"Apache Beam"},{"name":"Splunk"},{"name":"Google Cloud Notebooks"}]` | `[{"name":"Spring Integration"},{"name":"MongoDB"},{"name":"Kafka","native":true},{"name":"Hadoop","native":true},{"name":"S3","native":true},{"name":"RDBMS","native":true},{"name":"JMS","native":true},{"name":"Oracle Database","native":true,"category":"database","direction":"bidirectional"},{"name":"Microsoft SQL Server","native":true,"category":"database","direction":"bidirectional"},{"name":"JDBC","native":true,"category":"database","direction":"bidirectional"}]` |
| language.primary | - | Java |
| license.spdx | - | Apache-2.0 |
| platform.support | - | `{"cli":true,"linux":true}` |
| pricing | - | `{"type":"quote","sourceUrl":"https://hazelcast.com","retrievedAt":"2026-08-03T21:11:26.502Z"}` |
| pricing.model | commercial | commercial |
| pricing.price_level | - | unknown |
| pricing.transparent | - | no |
| release.cadence_days | - | 15 |
| release.history | - | `[{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.7.0","date":"2026-05-13T10:46:12Z","type":"stable","version":"v5.7.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.6.0","date":"2025-10-15T14:47:06Z","type":"stable","version":"v5.6.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.5.0","date":"2024-07-26T17:03:03Z","type":"stable","version":"v5.5.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.8","date":"2024-07-17T14:13:54Z","type":"stable","version":"v5.3.8"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.4.0","date":"2024-04-15T17:55:57Z","type":"stable","version":"v5.4.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.7","date":"2024-04-03T10:23:29Z","type":"stable","version":"v5.3.7"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.5","date":"2024-02-26T14:47:57Z","type":"stable","version":"v5.2.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.6","date":"2023-11-09T14:00:06Z","type":"stable","version":"v5.3.6"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.5","date":"2023-10-24T14:59:38Z","type":"stable","version":"v5.3.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.2","date":"2023-08-21T15:41:18Z","type":"stable","version":"v5.3.2"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.0.5","date":"2023-06-28T13:47:26Z","type":"stable","version":"v5.0.5"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.1.7","date":"2023-06-19T14:02:07Z","type":"stable","version":"v5.1.7"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.4","date":"2023-06-13T12:40:26Z","type":"stable","version":"v5.2.4"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.1","date":"2023-06-09T09:24:01Z","type":"stable","version":"v5.3.1"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v4.2.8","date":"2023-05-29T09:56:41Z","type":"stable","version":"v4.2.8"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0","date":"2023-05-19T06:32:29Z","type":"stable","version":"v5.3.0"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.1.6","date":"2023-05-10T10:55:54Z","type":"stable","version":"v5.1.6"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0-BETA-2","date":"2023-04-12T10:58:26Z","type":"stable","version":"v5.3.0-BETA-2"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.2.3","date":"2023-03-23T13:28:16Z","type":"stable","version":"v5.2.3"},{"url":"https://github.com/hazelcast/hazelcast/releases/tag/v5.3.0-BETA-1","date":"2023-03-17T06:49:49Z","type":"stable","version":"v5.3.0-BETA-1"}]` |
| reliability.status_page | - | yes |
| security.gdpr | - | yes |
| security.scorecard | - | 4.2 |
| security.vulnerabilities | - | `{"count":10,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.hazelcast%3Ahazelcast&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (Streaming Analytics)

| Capability | Google Cloud Dataflow | Hazelcast |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Processing model | - | - |
| Delivery guarantee | - | Exactly once |
| Streaming sql | - | ✓ |
| Event time watermarks | - | - |
| Stateful processing | ✓ | ✓ |
| Cdc support | - | - |
| Deployment model | Serverless | Self hosted |
| Autoscaling | ✓ | ✓ |
| Connector breadth | - | - |
| Latency class | Seconds | Sub second |
| Open source | ✗ | ✓ |
| SOC2 | - | - |
| Pricing model | - | Open source self host |

*Source: vioscaleAI. Generated 2026-10-16T19:15:14.247Z. "-" = undocumented, not absent.*