MMmmerli·Sep 13, 2016
Added some info on geo-replication in Pulsar at https://github.com/yahoo/pulsar/blob/master/docs/GeoReplicat...
In Open-Sourcing Yahoo's Pulsar, Pub-Sub Messaging at Scaleapache
pulsar
Java2016–2021
apache / pulsar
pulsar
Apache Pulsar - distributed pub-sub messaging system
8Distinct people
8Mentions
0Explicit recommenders
15.4KGitHub stars
What to know before exploring
What it is
Apache Pulsar - distributed pub-sub messaging system
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 7:56:55 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year8 dated mentions
Observed mentions: 2016-09-08 14:03:54 UTC to 2021-03-31 13:57:03 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 3 | 1 | 2 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
3 sourcesThat doesn't look to be Yahoo's Pulsar, but rather some analytics thing. Yahoo's documentation is on Github: https://github.com/yahoo/pulsar/blob/master/docs/GettingStar...
The documentation I've read suggests that it's very similar to Kafka (and I'll have you all know that I considered "Kafkaesque" there but I have some self-restraint).
edit: an acquaintance just suggested that maybe it's more related to Twitter's DistributedLog than Kafka: https://github.com/twitter/distributedlog
In Open-Sourcing Yahoo's Pulsar, Pub-Sub Messaging at ScaleGithub page: https://github.com/yahoo/pulsar
Pulsar backs major Yahoo applications like Mail, Finance, Sports, Gemini Ads, and Sherpa, Yahoo’s distributed key-value service.
On the scale front:
- Deployed globally, in 10+ data-centers, with full mesh replication capability
- Greater than 100 billion messages/day published
- More than 1.4 million topics
- Average publish latency across the service of less than 5 ms
In Open-Sourcing Yahoo's Pulsar, Pub-Sub Messaging at Scale