Deprecated method: this method is going to be deleted. Use Fluent::MessagePackFactory.msgpack_unpacker

[liorco3000]

Problem
We see hundreds of deprecation warnings per minute:

fuentd-agent-v2-jh5tn fluentd-agent 2020-01-30 12:18:59 +0000 [warn]: #0 Deprecated method: this method is going to be deleted. Use Fluent::MessagePackFactory.msgpack_unpacker

So i guess it related to this plugin we added recently.
Any fix for this ?

[mindw]

reference fix:
fluent-plugins-nursery/fluent-plugin-cloudwatch-logs#172

[eredi93]

I'm also getting this warning. @simukappu is it as simple as preparing a PR like the one @mindw shared in the comment above?

[simukappu]

Hi,
Thank you for your feedback. Which version of Fluentd are you using?
The class method Fluent::MessagePackFactory.msgpack_unpacker was added after Fluentd v1.8 here. Deprecated log was also added here with this. However, the latest td-agent v3.5.1 includes Fluentd v1.7.4.
We would appreciate it if you could give us more feedback. Thanks!

[eredi93]

@simukappu I'm using the lastest version of fluentd 1.9.1
is the issue here the fact that it would break td-agent?
I'm just wondering if we could work on removing the deprecated message, but if it would break other standard deployments like td-agent then i'm happy to leave it as is until they upgrade the package to 1.8 or newer

[simukappu]

Hi @eredi93,
Could you test this patch whether you can remove the deprecated messages?

$ git clone https://github.com/awslabs/aws-fluent-plugin-kinesis.git
$ cd aws-fluent-plugin-kinesis
$ git checkout issue-194
$ gem build fluent-plugin-kinesis.gemspec

$ td-agent-gem install fluent-plugin-kinesis-3.2.0.gem
# Or
$ fluent-gem install fluent-plugin-kinesis-3.2.0.gem

[eredi93]

@simukappu i can confirm the deprecated messages are gone when using the patch 🙇

[simukappu]

Released as v3.2.1. Thank you!
https://rubygems.org/gems/fluent-plugin-kinesis/versions/3.2.1