Fluentd v0.10.55 is released

Hi users!

We have just released Fluentd version 0.10.55. We forgot cherry-picking one commit so version 0.10.54 is skipped.
Here are the changes:

  • config: Change v1's non-quoted string literal behaviour to v0's behaviour: #436
  • config: Relax '@' handling in the plugin configuration for backward compatibility: #455
  • config: Add --use-v0-config for keeping old configuration: #434
  • config: Add single quoted literal in v1 configuration: #437
  • config: Improve error message of Array / Hash parse error: #457
  • input: Reduce shutdown time in some network related plugins when use Cool.io 1.2: #440
  • parser: Use ParserError instead of general exception classes: #453
  • Remove unused zfile buffer plugin: #445

This release improves and changes v1 configuration.

Change v1's non-quoted string literal behaviour

Old v1's non-quoted string literal is same as double-quoted string literal so v1-config user should escape some characters, e.g. \, with \. It has a problem which hard to write regular expression and hard to migrate from v0-config. After several discussion, we decided to change v1's non-quoted string literal behaviour to v0's non-quoted string. You don't need \ escape in the non-quoted string.

In this result, you can easy to migrate from v0 to v1 configuration. This is good for existence Fluentd and td-agent users. We will add each string literal explanation to configuration article on Fluentd document.

This change breaks backward compatibility of --use-v1-config. If you already use --use-v1-config or td-agent 2, see this thread for avoiding incompatible problem: https://groups.google.com/forum/#!topic/fluentd/4C36iAyI87E

Add --use-v0-config option

Fluentd v0.12 or later uses v1 configuration by default. If you want to keep v0 configuration, this option is useful.

Happy logging!

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Written by Masahiro Nakagawa

Masahiro (@repeatedly) is the main maintainer of Fluentd. He works on Fluentd development and support full-time. He is also a committer of the D programming language.

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