Raise the default value of up to 512 MB

[andsel]

Release notes

Raise the default value of decode_size_limit_bytes up to 512 MB.

What does this PR do?

Updates the default value for setting decode_size_limit_bytes to 512MB from 20MB, and print a deprecation log to inform the user the default value will be lowered in future version.

Why is it important/What is the impact to the user?

Every parsing of incoming data should be limited, to avoid OOM. The original 20MB maybe is to low for some circumstances. To avoid generate noise to users that appropriately parses big json lines it's raised up to 512MB.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• [ ] I have made corresponding change to the default configuration files (and/or docker env variables)
• [ ] I have added tests that prove my fix is effective or that my feature works

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Relates Size limit bytes #43

Use cases

Screenshots

Logs

[jsvd]

Added a rewording suggestion, otherwise LGTM