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Questions tagged [pulsar]

Lightweight threads, CSP and Erlang-like actors for Clojure.

Pulsar is a Clojure library that provides high-performance lightweight threads and Erlang-like actors. It is a Clojure API for the Quasar Java library, with the addition of pattern matching and an Erlang-like syntax.

For more information: http://docs.paralleluniverse.co/pulsar/

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Is there anyone can help me for the pulsar perf?

I use the pulsar perf to test the service by the command: pulsar-perf produce topic1 -n 1 -t 10 -r 1000000, but the log shows that the Throughtput Produced just below 10000, i need to test the service by higher message rate, how can i do ?
hezonglin
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Pulsar Log4j2 Appender error: Producer with name 'pulsar-log4j2-appender-applog-json' is already connected to topic

I can't get a simple hello-world type Spring Boot app to utilize the Pulsar Log4j2 appender. At startup it reports the error: 2021-05-14T15:34:23.549-05:00 [pulsar-client-io-6-1] ERROR o.a.p.c.i.ProducerImpl [applog-json]…
Kelby
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Generate google wrapper class for proto definition (pulsar native protobuf)

I try to implement this PR https://github.com/apache/pulsar/pull/8372 in dotnet client. As far as I get for now, generating message schema for input class works like this: Some class -> .proto for this class -> google wrapper from this .proto -> get…
Michael Snytko
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Is it possible to have multiple producers for the same topic on Pulsar?

I know you can set topic subscription to be shared subscription to allow for multiple Consumers on the same topic. Can this also be done for multiple Producers? For some reason when I try to, I get a Producer with name '' is already…
doctopus
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Producer with name is already connected to topic when using Pulsar appender with Ignite logger

I have a complex project that uses Ignite and has the Ignite version of log4j2 installed. I'd also like to install a Pulsar appender to log4j2, however, when I start up the application, I get the following error: log4j:WARN No appenders could be…
doctopus
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Apache Pulsar installation in Windows Docker

Could you please help me how to install a local standalone pulsar cluster using windows docker.i have followed the below options.but i couldn't able to access the pulsar UI 8080 port is already allocated for some other process.so here i'm using…
anbutech17
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Apache Pulsar schema validate with json string

In my case, I have some raw JSON string data send to the topic and can't hard code POJO class, I want to use the pulsar schema feature to validate the structure. I have a topic "my-topic" and associated with JSON schema below, then I try to…
whisperbye
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How to do broadcast in Pulsar

I'm investigating a tech for our cluster. Pulsar looks good, but the usage looks more like a queueing system. Of course, queueing system is good to have, but I have a specific requirement: broadcasting. We would like to use one machine to generate…
Xiang Zhang
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Quasar/Pulsar lein midje build errors on linux

I am trying to install Pulsar. I have lein version idf@idf-Satellite-C55t-A ~/Documents/clojure/pulsar $ lein version Leiningen 2.5.0 on Java 1.7.0_72 Java HotSpot(TM) 64-Bit Server VM idf@idf-Satellite-C55t-A ~/Documents/clojure/pulsar $ I have…
Ivan
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Agent/actor like constructs in clojure that operate on all messages received since last update

What's best way in clojure to implement something like an actor or agent (asynchronously updated, uncoordinated reference) that does the following? gets sent messages/data executes some function on that data to obtain new state; something like (fn…
metasoarous
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Issue with Pulsar GeoReplication

I have followed the steps and completed the Geo replication setup as per the pulsar documentation https://pulsar.apache.org/docs/3.1.x/administration-geo/ All the geo replication related setup was enabled and working fine. When I try to produce a…
Sathiskumar Perumal
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How to deploy pulsarra.rar in Jboss?

I'm trying to deploy and configure DataStax Apache Pulsar JMS Client Resource Adapter in JBoss but I'm getting the following error: 2023-08-28 11:21:30,684 INFO [org.jboss.weld.deployer] (MSC service thread 1-5) WFLYWELD0003: Processing weld…
MLeiria
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Flink SQL connector for Pulsar deserialization issue with Avro schema

When using Apache Flink SQL connector for Pulsar (link), I consistently get the Avro deserialization problem when trying to read from a Flink table that is backed by a Pulsar topic (having an Avro schema) The detailed error stack from Flink SQL log…
Yabin Meng
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Pulsar client numIoThreads and numListenerThreads per consumer instance or for all consumer instances

Let's say I have the following pulsar config: pulsar: topicX: client: config: numIoThreads: 3 numListenerThreads: 15 consumer: config: receiverQueueSize: 20 count: 3 topicY: client: …
Thomas Verhoeven
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Apache Pulsar 2.11 - how can we track Broker/Consumer command flow message metrics?

We are using Apache Pulsar 2.11 and seeing scenarios that round-robin approach is not working correctly - keeping some consumers idle while there is enough backlog. I have good understanding of what goes here in Apache Pulsar based no good…
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