aop VS Apache Pulsar

Compare aop vs Apache Pulsar and see what are their differences.


AMQP on Pulsar protocol handler (by streamnative)

Apache Pulsar

Apache Pulsar - distributed pub-sub messaging system (by apache)
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aop Apache Pulsar
1 28
104 13,350
2.9% 1.6%
10.0 9.8
about 6 hours ago 1 day ago
Java Java
Apache License 2.0 Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of aop. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-11-10.
  • Improving Developer Productivity at Disney with Serverless and Open Source
    6 projects | /r/java | 10 Nov 2022
    While Pulsar has its own protocol that handles streaming, queues, and a lot of the other features (distributed transactions, functions, etc.), it can also speak other messaging protocols via plug-ins. Looking around, the ones that appear to be actively developed are MQTT, Kafka (so your existing applications that use Kafka can also use Pulsar), AMQP, and JMS.

Apache Pulsar

Posts with mentions or reviews of Apache Pulsar. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-09-28.
  • Help finding open source Terraform configurations that are not educational projects or developer tools
    2 projects | /r/Terraform | 28 Sep 2023
    Edit: Here's a good example of what I'm looking for: It is a full application that happens to be deployed (or deployable) with Terraform, and the configuration files are available.
  • Kafka Is Dead, Long Live Kafka
    6 projects | | 7 Aug 2023
    I am the founder of RisingWave (, an open-source SQL streaming database. I am happy to see the launch of Warpstream! I just reviewed the project and here's my personal opinion:

    * Apache Kafka is undoubtedly the leading product in the streaming platform space. It offers a simple yet effective API that has become the golden standard. All streaming/messaging vendors need to adhere to Kafka protocol.

    * The original Kafka only used local storage to store data, which can be extremely expensive if the data volume is large. That's why many people are advocating for the development of Kafka Tiered Storage (KIP-405: To my best knowledge, there are at least five vendors selling Kafka or Kafka-compatible products with tiered storage support:

    -- Confluent, which builds Kora, the 10X Kafka engine:;

    -- Aiven, the open-source tiered storage Kafka (source code:

    -- Redpanda Data, which cuts your TCO by 6X (;

    -- DataStax, which commercializes Apache Pulsar (;

    -- StreamNative, which commercializes Apache Pulsar (

    * WarpStream claims to be "built directly on top of S3," which I believe is a very aggressive approach that has the potential to drastically reduce costs, even compared to tiered storage. The potential tradeoff is system performance, especially in terms of latency. As new technology, WarpStream brings novelty, and definitely it also needs to convince users that the service is robust and reliable.

    * BYOC (Bring Your Own Cloud) is becoming the default option. Most of the vendors listed above offer BYOC, where data is stored in customers' cloud accounts, addressing concerns about data privacy and security.

    I believe WarpStream is new technology to this market, and and would encourage the team to publish some detailed numbers to confirm its performance and efficiency!

  • Analyzing Real-Time Movie Reviews With Redpanda and Memgraph
    2 projects | | 6 Jul 2023
    In recent years, it has become apparent that almost no production system is complete without real-time data. This can also be observed through the rise of streaming platforms such as Apache Kafka, Apache Pulsar, Redpanda, and RabbitMQ.
  • Is anyone frustrated with anything about Prometheus?
    5 projects | /r/PrometheusMonitoring | 18 Jun 2023
  • Kafka alternatives
    6 projects | /r/apachekafka | 22 May 2023
  • Is Redpanda going to replace Apache Kafka?
    2 projects | /r/dataengineering | 7 May 2023
    So many tools out there, its just which one do you like, I guess. I like Kafka. Works for our environment and we have a few clusters. People have brought up Cribl to replace our kafka (havent really looked into Cribl and we also run NiFi). I have even heard , which seems to be almost another flavor of Kafka.
  • Querying microservices in real-time with materialized views
    4 projects | | 30 Apr 2023
    RisingWave is an open-source streaming database that has built-in fully-managed CDC source connectors for various databases, also it can collect data from other sources such Kafka, Pulsar, Kinesis, or Redpanda and it allows you to query real-time streams using SQL. You can get a materialized view that is always up-to-date.
  • How Streaming database differs from a Traditional database?
    3 projects | | 31 Mar 2023
    For example, RisingWave is one of the fastest-growing open-source streaming databases that can ingest data from Apache Kafka, Apache Pulsar, Amazon Kinesis, Redpanda, and databases via native Change data capture connections or using Debezium connectors to MySQL and PostgreSQL sources. Previously, I wrote a blog post about how to choose the right streaming database that discusses some key factors that you should consider.
  • Query Real Time Data in Kafka Using SQL
    7 projects | | 23 Mar 2023
    RisingWave is an open-source distributed SQL database for stream processing. RisingWave accepts data from sources like Apache Kafka, Apache Pulsar, Amazon Kinesis, Redpanda, and databases via native Change data capture connections to MySQL and PostgreSQL sources. It uses the concept of materialized view that involves caching the outcome of your query operations and it is quite efficient for long-running stream processing queries.
  • How to choose the right streaming database
    8 projects | | 16 Mar 2023
    You can ingest data from different data sources such as message brokers Kafka, Redpanda, Kinesis, Pulsar, or databases MySQL or PostgreSQL using their Change Data Capture (CDC) which is the process of identifying and capturing data changes.

What are some alternatives?

When comparing aop and Apache Pulsar you can also consider the following projects:

redpanda - Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

Apache ActiveMQ - Mirror of Apache ActiveMQ

Apache ActiveMQ Artemis - Mirror of Apache ActiveMQ Artemis

Apache Camel - Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

Apache RocketMQ - Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.


Embedded RabbitMQ - A JVM library to use RabbitMQ as an embedded service

Aeron - Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Apache Kafka - Mirror of Apache Kafka

jetstream - JetStream Utilities

Nakadi - A distributed event bus that implements a RESTful API abstraction on top of Kafka-like queues

envoy - Cloud-native high-performance edge/middle/service proxy