Slack digest for #dev - 2019-11-04

[Apache Pulsar Slack]

2019-11-03 10:54:17 UTC - Dmytro Nasyrov: @Dmytro Nasyrov has joined the channel
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2019-11-04 01:53:03 UTC - xiaolong.ran: @Matteo Merli 
<https://github.com/apache/pulsar/pull/5491> PTAL
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