Slack digest for #general - 2019-05-22

[Apache Pulsar Slack <ap...@gmail.com>]

2019-05-21 11:25:53 UTC - Sijie Guo: sorry for late response. have been traveling in the past days. @tuteng from the community will help with this task.
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2019-05-21 11:27:02 UTC - Sijie Guo: what is the `GenericRecord record` here?
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2019-05-21 14:46:59 UTC - Dhaval: @Dhaval has joined the channel
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2019-05-21 14:51:24 UTC - Ezequiel Lovelle: I will try to reproduce this in order to track possible bug.
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2019-05-21 14:58:16 UTC - Nozomi Kurihara: 
clap : Ezequiel Lovelle, Joe Francis, Matteo Merli, Karthik Ramasamy, Sébastien de Melo, Devin G. Bost, Thor Sigurjonsson, Ali Ahmed, Kanaderu Fukuda, Sree Vaddi, Sijie Guo, Grant Wu, jia zhai, Penghui Li
+1 : jia zhai, Penghui Li
tada : jia zhai, Penghui Li
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2019-05-21 14:59:11 UTC - Nozomi Kurihara: Pulsar booth in KubeCon Europe.
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2019-05-21 15:00:13 UTC - Nozomi Kurihara: Please come to our booth!
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2019-05-21 15:00:57 UTC - Nozomi Kurihara: 
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2019-05-21 15:23:27 UTC - Thor Sigurjonsson: Any update or guesstimate for an ETA on the 2.3.2 release?
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2019-05-21 18:48:25 UTC - Anoop A K: @Anoop A K has joined the channel
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2019-05-21 18:49:53 UTC - Ezequiel Lovelle: I found the issue, I will push the fix shortly.
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2019-05-21 19:04:43 UTC - Remco Verhoef: Don’t know if this is the right place to ask, but what are the ideas on using DistributedLog (part of BookKeeper)? I don’t see a lot of activity on DistributedLog itself.
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2019-05-21 21:08:09 UTC - Ezequiel Lovelle: <https://github.com/apache/pulsar/pull/4331>
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2019-05-21 22:41:51 UTC - vinay Parekar: hi guys, i see
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2019-05-21 22:42:13 UTC - vinay Parekar: ‘--dead-letter-topic’ in the config when ‘ pulsar-admin functions create help’
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2019-05-21 22:42:23 UTC - vinay Parekar: i did not found any documentation around it
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2019-05-21 22:42:52 UTC - vinay Parekar: how can i use the config, can anybody shed some light around it please
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2019-05-21 22:48:40 UTC - Ali Ahmed: @vinay Parekar
<https://github.com/apache/pulsar/pull/4315/files>
it will published to the main doc website soon.
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2019-05-21 22:49:47 UTC - Ali Ahmed: @Thor Sigurjonsson by end of may.
+1 : Thor Sigurjonsson, vinay Parekar
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2019-05-21 22:50:41 UTC - Ali Ahmed: @Remco Verhoef DistributedLog was merged into BookKeeper, it is no longer in development but is being maintained by the bk community.
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2019-05-21 22:52:29 UTC - vinay Parekar: Thanks @Ali Ahmed
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2019-05-21 23:16:08 UTC - Thor Sigurjonsson: OK, at risk of being controversial / political / tech-faith-insensitive in some way, I thought I'd just share this because it was kind of funny...
This anecdote is loosely based on real interactions with business folk. (The actual answer provided was thought of later by someone else (me), but the story would have been good if it was faithful to actual events). ..But we can maybe stretch the truth and say "it is based on real events". The context being that streaming was being discussed and Kafka was invoked to explain something about Pulsar...

Question:
"What is Pulsar ... and then.. eh what is Kafka?"
2nd answer after the first one didn't take:
"A) Pulsar is a highly magnetized rotating neutron star that emits a beam of electromagnetic radiation and B) Kafka is a writer known for alienation, existential anxiety, guilt and absurdity.  Which one would you rather be the backbone of your companies data strategy?"
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2019-05-21 23:31:14 UTC - Ali Ahmed: Well naming is always a challenge in Computer science
+1 : Thor Sigurjonsson, Ezequiel Lovelle
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2019-05-21 23:43:49 UTC - Grant Wu: :thinking_face: at least Kafka’s writings have persisted until present day, not sure any data would persist near a neutron star
laughing : Devin G. Bost, Ali Ahmed, Thor Sigurjonsson
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2019-05-21 23:48:36 UTC - Matteo Merli: that’s only 100 years… Pulsar’s radiations are 100 light-years old  (and didn’t get lost) :smile:
+1 : Devin G. Bost, Ezequiel Lovelle, Ali Ahmed, vvy, Thor Sigurjonsson
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2019-05-22 00:17:08 UTC - Grant Wu: petition to rename terminology to `pulsar-client cast_ray` and `pulsar-client get_sunburn`
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2019-05-22 01:49:31 UTC - vvy: thanks
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2019-05-22 03:36:26 UTC - Shivji Kumar Jha: Is this a known issue? Has someone else come across this?
```
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pulsar.shade.com.fasterxml.jackson.databind.SerializationConfig
```
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2019-05-22 03:37:07 UTC - Shivji Kumar Jha: Its seems this library somehow escapes shading on the pulsar client module.. And then clashes with the same library included from some other jar in the application.
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2019-05-22 03:37:49 UTC - Shivji Kumar Jha: @Matteo Merli @jia zhai ^^
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2019-05-22 08:07:26 UTC - jia zhai: @Shivji Kumar Jha Seems no one report this issue. It would be great if you could help open an issue, and provide detailed information of how to reproduce it.
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2019-05-22 08:41:49 UTC - Remco Verhoef: @Ali Ahmed thanks for your reaction. But is it also actively developed and supported? I’d prefer DistributedLog over LogDevice as we’re running bookkeeper anyway. If it is still supported and active I’d like to explore working on a go client library.
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2019-05-22 08:44:50 UTC - Ali Ahmed: you will have to ask on the bookeeper slack directly I know “<http://streamlio.io|streamlio.io>” does some custom work on DistributedLog for some enterprise clients but not aware of any plans in the open source.
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2019-05-22 08:45:19 UTC - Remco Verhoef: thx
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2019-05-22 08:49:53 UTC - Shivji Kumar Jha: Will do! Need to find a deterministic way to reproduce this first :slightly_smiling_face:
+1 : jia zhai
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