Fluentd filter regex

No installation required. The above example matches any event that satisfies the following conditions:. The value of the "message" field contains "cool". The value of the "hostname" field matches. The value of the "message" field does NOT contain "uncool". Hence, the following events are kept:. Specify filtering rule. This directive has been added since 1.

This is same as below:. This directive contains two parameters. The field name to which the regular expression is applied. The regular expression. The pattern parameter is string type before 1. For example, the following filters out events unless the field "price" is a positive integer. Hence, if you have. For OR condition, you can use operator of regular expressions.

For example, if you have. Note that if you want to use a match pattern with a leading slash a typical case is a file pathyou need to escape the leading slash.

fluentd filter regex

Otherwise, the pattern will not be recognized as expected. Here is a simple example:. You can also write the pattern like below:. Learn regular expressions for more patterns. This is deprecated parameter. The "N" at the end should be replaced with an integer between 1 and 20 ex: "regexp1". Specify filtering rule to reject events. The "N" at the end should be replaced with an integer between 1 and 20 ex: "exclude1".

If this article is incorrect or outdated, or omits critical information, please let us know. All components are available under the Apache 2 License. Container Deployment. Input Plugins. Output Plugins. Filter Plugins. Parser Plugins. Formatter Plugins. Buffer Plugins. Storage Plugins.The plugin is configured by defining a list of rules containing conditional statements and information on how to rewrite matching tags. When a message is handled by the plugin, the rules are tested one by one in order.

fluentd filter regex

If a matching rule is found, the message tag will be rewritten according to the definition in the rule and the message will be emitted again with the new tag. This in an example on how to use this plugin to re-write tags. In the example, records tagged with 'app. Sample data:. Fluentd gem users will have to install the fluent-plugin-rewrite-tag-filter gem using the following command. For more details, see Plugin Management.

Configuration design is dropping some pattern record first, then re-emit other matched record as new tag name. The example configuration shown below gives an example on how the plugin can be used to define a number of rules that examines values from different keys and sets the tag depending on the regular expression configured in each rule.

The tag value is later used to decide whether the log event shall be dropped or not. This is obsoleted since 2. Capitalize letter for every matched regex backreference. Override hostname command for placeholder. The field name to which the regular expression is applied. The regular expression which is applied on the field value.

The type of pattern is string before 2. New tag. If true, rewrite tag when unmatch pattern. The following variable can be used when specifying the name of the rewritten tag. Send an IRC alert for 5xx status codes on exceeding thresholds. Collect access log from multiple application servers config1. Sum up the error and output to mongoDB config2. Note: These plugins are required to be installed. If you have following configuration, it doesn't work:.

So you need to change tag like below:.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

Here is my fluentd conf. Because I cannot find a solution to exclude record that key have empty value, I use the reverse solution. I use grep to keep record with specified key-value.

See my Fluentd configuration below. It seems like a fairly trivial use of the grep filter plugin's exclude directive. Note that there was a change to the regex notation between 0.

Learn more. Fluentd filter to exclude key with empty value Ask Question. Asked 2 years, 7 months ago. Active today. Viewed 4k times. How to do that? I have solved the second quest by add a space to regex.

Daro Oem. Daro Oem Daro Oem 2 2 silver badges 12 12 bronze badges. Active Oldest Votes. Fluentd on each WSO2 node. Fluentd Configuration File In v1 configuration, type and id are prefix parameters. The default table is required.

Sign up or log in Sign up using Google.This article gives an overview of Filter Plugin. Filter plugins enables Fluentd to modify event streams. Example use cases are:. Filtering out events by grepping the value of one or more fields. Enriching events by adding new fields. Deleting or masking certain fields for privacy and compliance.

The above directive matches events with the tag "foo. Once the event is processed by the filter, the event proceeds through the configuration top-down. Hence, if there are multiple filters for the same tag, they are applied in descending order. Hence, in the following example.

Only the events whose "message" field contain "cool" get the new field "hostname" with the machine's hostname as its value. Users can create their own custom plugins with a bit of Ruby. See this section for more information. If you have multiple filters in the pipeline, fluentd tries to optimize filter calls to improve the performance. The condition for optimization is all plugins in the pipeline use filter method.

If you see following message in the log, the optimization is disabled. This is not critical log message and you can ignore it. If this article is incorrect or outdated, or omits critical information, please let us know. All components are available under the Apache 2 License.

Container Deployment.

Input Plugins. Output Plugins. Filter Plugins. Parser Plugins. Formatter Plugins. Buffer Plugins. Storage Plugins.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Rewrite Tag Filter for Fluentd. Also you can change a tag from Apache log by domain, status code ex.

For more details, see Plugin Management. When original tag is kubernetes. For example with td. By default, execute command as hostname to get full hostname. Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Find file Copy path. Cannot retrieve contributors at this time. Raw Blame History. This is an output plugin because fluentd's filter doesn't allow tag rewrite.

The pattern without slashes will cause errors if you use patterns start with character classes. Placeholder Usage It's a sample to rewrite a tag with placeholder. It will get "rewritten. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. The number of seconds after which the last received event log will be flushed. If specified 0, wait for next line forever. Docker v Handle Docker logs splitted in several parts using newline detectionand do not add new line between parts prior to Docker The gem is available as open source under the terms of the MIT License.

Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Fluentd Filter plugin to concatenate multiline log separated in multiple events. Ruby Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again.

Latest commit. Latest commit 9f08f32 Feb 12, You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Fix a typo [ci skip]. Dec 28, Sep 9, Sort records before concatenate lines in records. Jul 25, Apr 6, Suppress rubocop warnings. Mar 15, Apr 5, Use double quote. Update NEWS.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again.

If nothing happens, download the GitHub extension for Visual Studio and try again. Rewrite Tag Filter for Fluentd.

Also you can change a tag from Apache log by domain, status code ex. For more details, see Plugin Management.

fluentd filter regex

When original tag is kubernetes. For example with td. By default, execute command as hostname to get full hostname. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Fluentd Output filter plugin to rewrite tags that matches specified attribute.

Ruby Branch: master. Find file. Sign in Sign up. Go back.

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Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Latest commit 3aea81e Apr 5, This is an output plugin because fluentd's filter doesn't allow tag rewrite. The pattern without slashes will cause errors if you use patterns start with character classes.

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Placeholder Usage It's a sample to rewrite a tag with placeholder. It will get "rewritten. You signed in with another tab or window. Reload to refresh your session.

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