Merge pull request #298 from kenhys/add-fallback-explanation

Add explanation about oj and yajl fallback
fluent · Apr 5, 2021 · 3e6adbf · 3e6adbf
2 parents 2fb097e + ca976c4
commit 3e6adbf
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/parser/json.md b/parser/json.md
@@ -14,6 +14,9 @@ See [Parse Section Configurations](../configuration/parse-section.md).
 
 Sets the JSON parser. If you have a problem with the configured parser, check the other available parser types.
 
+NOTE: If you want to enable `json_parser oj` by default, The `oj` gem must be installed separately. This is because `oj` gem is not required from fluentd by default.
+If `oj` gem is not installed, `yajl` is used as a fallback.
+
 Here is a simple comparison:
 
 * `oj`: Faster json parser