# Fluentd

## 0.12

- [Introduction](https://docs.fluentd.org/0.12/readme.md)
- [Overview](https://docs.fluentd.org/0.12/quickstart.md)
- [Getting Started](https://docs.fluentd.org/0.12/quickstart/getting-started.md)
- [Installation](https://docs.fluentd.org/0.12/quickstart/installation.md)
- [Life of a Fluentd event](https://docs.fluentd.org/0.12/quickstart/life-of-a-fluentd-event.md)
- [Support](https://docs.fluentd.org/0.12/quickstart/support.md)
- [FAQ](https://docs.fluentd.org/0.12/quickstart/faq.md)
- [Use Cases](https://docs.fluentd.org/0.12/use-cases.md)
- [Centralized App Logging](https://docs.fluentd.org/0.12/use-cases/logging-from-apps.md)
- [Monitoring Service Logs](https://docs.fluentd.org/0.12/use-cases/monitoring-service-logs.md)
- [Data Analytics](https://docs.fluentd.org/0.12/use-cases/data-analytics.md)
- [Connecting to Data Storages](https://docs.fluentd.org/0.12/use-cases/data-archiving.md)
- [Stream Processing](https://docs.fluentd.org/0.12/use-cases/stream-processing.md)
- [Windows Event Collection](https://docs.fluentd.org/0.12/use-cases/windows.md)
- [IoT Data Logger](https://docs.fluentd.org/0.12/use-cases/iot.md)
- [Configuration](https://docs.fluentd.org/0.12/configuration.md)
- [Config File Syntax](https://docs.fluentd.org/0.12/configuration/config-file.md)
- [Routing Examples](https://docs.fluentd.org/0.12/configuration/routing-examples.md)
- [Recipes](https://docs.fluentd.org/0.12/configuration/recipes.md)
- [Deployment](https://docs.fluentd.org/0.12/deployment.md)
- [Logging](https://docs.fluentd.org/0.12/deployment/logging.md)
- [Monitoring](https://docs.fluentd.org/0.12/deployment/monitoring.md)
- [Signals](https://docs.fluentd.org/0.12/deployment/signals.md)
- [RPC](https://docs.fluentd.org/0.12/deployment/rpc.md)
- [High Availability Config](https://docs.fluentd.org/0.12/deployment/high-availability.md)
- [Failure Scenarios](https://docs.fluentd.org/0.12/deployment/failure-scenarios.md)
- [Performance Tuning](https://docs.fluentd.org/0.12/deployment/performance-tuning.md)
- [Plugin Management](https://docs.fluentd.org/0.12/deployment/plugin-management.md)
- [Trouble Shooting](https://docs.fluentd.org/0.12/deployment/trouble-shooting.md)
- [Secure Forwarding](https://docs.fluentd.org/0.12/deployment/secure-forwarder.md)
- [Fluentd UI](https://docs.fluentd.org/0.12/deployment/fluentd-ui.md)
- [Command Line Option](https://docs.fluentd.org/0.12/deployment/command-line-option.md)
- [Container Deployment](https://docs.fluentd.org/0.12/container-deployment.md)
- [Docker Image](https://docs.fluentd.org/0.12/container-deployment/install-by-docker.md)
- [Docker Logging Driver](https://docs.fluentd.org/0.12/container-deployment/docker-logging-driver.md)
- [Docker Compose](https://docs.fluentd.org/0.12/container-deployment/docker-compose.md)
- [Kubernetes](https://docs.fluentd.org/0.12/container-deployment/kubernetes.md)
- [Input Plugins](https://docs.fluentd.org/0.12/input.md)
- [tail](https://docs.fluentd.org/0.12/input/tail.md)
- [forward](https://docs.fluentd.org/0.12/input/forward.md)
- [secure\_forward](https://docs.fluentd.org/0.12/input/secure_forward.md)
- [udp](https://docs.fluentd.org/0.12/input/udp.md)
- [tcp](https://docs.fluentd.org/0.12/input/tcp.md)
- [http](https://docs.fluentd.org/0.12/input/http.md)
- [unix](https://docs.fluentd.org/0.12/input/unix.md)
- [syslog](https://docs.fluentd.org/0.12/input/syslog.md)
- [exec](https://docs.fluentd.org/0.12/input/exec.md)
- [scribe](https://docs.fluentd.org/0.12/input/scribe.md)
- [multiprocess](https://docs.fluentd.org/0.12/input/multiprocess.md)
- [dummy](https://docs.fluentd.org/0.12/input/dummy.md)
- [Others](https://docs.fluentd.org/0.12/input/others.md)
- [Output Plugins](https://docs.fluentd.org/0.12/output.md)
- [file](https://docs.fluentd.org/0.12/output/file.md)
- [s3](https://docs.fluentd.org/0.12/output/s3.md)
- [kafka](https://docs.fluentd.org/0.12/output/kafka.md)
- [forward](https://docs.fluentd.org/0.12/output/forward.md)
- [secure\_forward](https://docs.fluentd.org/0.12/output/secure_forward.md)
- [exec](https://docs.fluentd.org/0.12/output/exec.md)
- [exec\_filter](https://docs.fluentd.org/0.12/output/exec_filter.md)
- [copy](https://docs.fluentd.org/0.12/output/copy.md)
- [geoip](https://docs.fluentd.org/0.12/output/geoip.md)
- [roundrobin](https://docs.fluentd.org/0.12/output/roundrobin.md)
- [stdout](https://docs.fluentd.org/0.12/output/stdout.md)
- [null](https://docs.fluentd.org/0.12/output/null.md)
- [webhdfs](https://docs.fluentd.org/0.12/output/webhdfs.md)
- [splunk](https://docs.fluentd.org/0.12/output/splunk.md)
- [mongo](https://docs.fluentd.org/0.12/output/mongo.md)
- [mongo\_replset](https://docs.fluentd.org/0.12/output/mongo_replset.md)
- [relabel](https://docs.fluentd.org/0.12/output/relabel.md)
- [rewrite\_tag\_filter](https://docs.fluentd.org/0.12/output/rewrite_tag_filter.md)
- [Others](https://docs.fluentd.org/0.12/output/others.md)
- [Buffer Plugins](https://docs.fluentd.org/0.12/buffer.md)
- [memory](https://docs.fluentd.org/0.12/buffer/memory.md)
- [file](https://docs.fluentd.org/0.12/buffer/file.md)
- [Filter Plugins](https://docs.fluentd.org/0.12/filter.md)
- [record\_transformer](https://docs.fluentd.org/0.12/filter/record_transformer.md)
- [grep](https://docs.fluentd.org/0.12/filter/grep.md)
- [parser](https://docs.fluentd.org/0.12/filter/parser.md)
- [stdout](https://docs.fluentd.org/0.12/filter/stdout.md)
- [Parser Plugins](https://docs.fluentd.org/0.12/parser.md)
- [regexp](https://docs.fluentd.org/0.12/parser/regexp.md)
- [apache2](https://docs.fluentd.org/0.12/parser/apache2.md)
- [apache\_error](https://docs.fluentd.org/0.12/parser/apache_error.md)
- [nginx](https://docs.fluentd.org/0.12/parser/nginx.md)
- [syslog](https://docs.fluentd.org/0.12/parser/syslog.md)
- [ltsv](https://docs.fluentd.org/0.12/parser/ltsv.md)
- [csv](https://docs.fluentd.org/0.12/parser/csv.md)
- [tsv](https://docs.fluentd.org/0.12/parser/tsv.md)
- [json](https://docs.fluentd.org/0.12/parser/json.md)
- [multiline](https://docs.fluentd.org/0.12/parser/multiline.md)
- [none](https://docs.fluentd.org/0.12/parser/none.md)
- [Formatter Plugins](https://docs.fluentd.org/0.12/formatter.md)
- [out\_file](https://docs.fluentd.org/0.12/formatter/out_file.md)
- [json](https://docs.fluentd.org/0.12/formatter/json.md)
- [ltsv](https://docs.fluentd.org/0.12/formatter/ltsv.md)
- [csv](https://docs.fluentd.org/0.12/formatter/csv.md)
- [msgpack](https://docs.fluentd.org/0.12/formatter/msgpack.md)
- [hash](https://docs.fluentd.org/0.12/formatter/hash.md)
- [single\_value](https://docs.fluentd.org/0.12/formatter/single_value.md)
- [Developer](https://docs.fluentd.org/0.12/developer.md)
- [Plugin Development](https://docs.fluentd.org/0.12/developer/plugin-development.md)
- [Community](https://docs.fluentd.org/0.12/developer/community.md)
- [Mailing List](https://docs.fluentd.org/0.12/developer/mailing-list.md)
- [Source Code](https://docs.fluentd.org/0.12/developer/source-code.md)
- [Bug Tracking](https://docs.fluentd.org/0.12/developer/bug-tracking.md)
- [ChangeLog](https://docs.fluentd.org/0.12/developer/changelog.md)
- [Logo](https://docs.fluentd.org/0.12/developer/logo.md)
- [Articles](https://docs.fluentd.org/0.12/articles.md)
- [Store Apache Logs into MongoDB](https://docs.fluentd.org/0.12/articles/apache-to-mongodb.md)
- [Apache To Riak](https://docs.fluentd.org/0.12/articles/apache-to-riak.md)
- [Store Apache Logs into Amazon S3](https://docs.fluentd.org/0.12/articles/apache-to-s3.md)
- [Before Install](https://docs.fluentd.org/0.12/articles/before-install.md)
- [Cep Norikra](https://docs.fluentd.org/0.12/articles/cep-norikra.md)
- [Collect Glusterfs Logs](https://docs.fluentd.org/0.12/articles/collect-glusterfs-logs.md)
- [Common Log Formats](https://docs.fluentd.org/0.12/articles/common-log-formats.md)
- [Docker Logging Efk Compose](https://docs.fluentd.org/0.12/articles/docker-logging-efk-compose.md)
- [Docker Logging](https://docs.fluentd.org/0.12/articles/docker-logging.md)
- [Filter Modify Apache](https://docs.fluentd.org/0.12/articles/filter-modify-apache.md)
- [Forwarding Over Ssl](https://docs.fluentd.org/0.12/articles/forwarding-over-ssl.md)
- [Free Alternative To Splunk By Fluentd](https://docs.fluentd.org/0.12/articles/free-alternative-to-splunk-by-fluentd.md)
- [Data Collection to Hadoop (HDFS)](https://docs.fluentd.org/0.12/articles/http-to-hdfs.md)
- [Data Analytics with Treasure Data](https://docs.fluentd.org/0.12/articles/http-to-td.md)
- [Install By Chef](https://docs.fluentd.org/0.12/articles/install-by-chef.md)
- [Install By Deb](https://docs.fluentd.org/0.12/articles/install-by-deb.md)
- [Install By Dmg](https://docs.fluentd.org/0.12/articles/install-by-dmg.md)
- [Install By Gem](https://docs.fluentd.org/0.12/articles/install-by-gem.md)
- [Install By Rpm](https://docs.fluentd.org/0.12/articles/install-by-rpm.md)
- [Install From Source](https://docs.fluentd.org/0.12/articles/install-from-source.md)
- [Install On Beanstalk](https://docs.fluentd.org/0.12/articles/install-on-beanstalk.md)
- [Install On Heroku](https://docs.fluentd.org/0.12/articles/install-on-heroku.md)
- [Java](https://docs.fluentd.org/0.12/articles/java.md)
- [Kinesis Stream](https://docs.fluentd.org/0.12/articles/kinesis-stream.md)
- [Kubernetes Fluentd](https://docs.fluentd.org/0.12/articles/kubernetes-fluentd.md)
- [Monitoring by Prometheus](https://docs.fluentd.org/0.12/articles/monitoring-prometheus.md)
- [Monitoring by Rest Api](https://docs.fluentd.org/0.12/articles/monitoring-rest-api.md)
- [Nodejs](https://docs.fluentd.org/0.12/articles/nodejs.md)
- [Performance Tuning Multi Process](https://docs.fluentd.org/0.12/articles/performance-tuning-multi-process.md)
- [Performance Tuning Single Process](https://docs.fluentd.org/0.12/articles/performance-tuning-single-process.md)
- [Perl](https://docs.fluentd.org/0.12/articles/perl.md)
- [Php](https://docs.fluentd.org/0.12/articles/php.md)
- [Python](https://docs.fluentd.org/0.12/articles/python.md)
- [Quickstart](https://docs.fluentd.org/0.12/articles/quickstart.md)
- [Raspberrypi Cloud Data Logger](https://docs.fluentd.org/0.12/articles/raspberrypi-cloud-data-logger.md)
- [Recipe Apache Logs To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-apache-logs-to-elasticsearch.md)
- [Recipe Apache Logs To Mongo](https://docs.fluentd.org/0.12/articles/recipe-apache-logs-to-mongo.md)
- [Recipe Apache Logs To S3](https://docs.fluentd.org/0.12/articles/recipe-apache-logs-to-s3.md)
- [Recipe Apache Logs To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-apache-logs-to-treasure-data.md)
- [Recipe Cloudstack To Mongodb](https://docs.fluentd.org/0.12/articles/recipe-cloudstack-to-mongodb.md)
- [Recipe Csv To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-csv-to-elasticsearch.md)
- [Recipe Csv To Mongo](https://docs.fluentd.org/0.12/articles/recipe-csv-to-mongo.md)
- [Recipe Csv To S3](https://docs.fluentd.org/0.12/articles/recipe-csv-to-s3.md)
- [Recipe Csv To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-csv-to-treasure-data.md)
- [Recipe Http Rest Api To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-http-rest-api-to-elasticsearch.md)
- [Recipe Http Rest Api To Mongo](https://docs.fluentd.org/0.12/articles/recipe-http-rest-api-to-mongo.md)
- [Recipe Http Rest Api To S3](https://docs.fluentd.org/0.12/articles/recipe-http-rest-api-to-s3.md)
- [Recipe Http Rest Api To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-http-rest-api-to-treasure-data.md)
- [Recipe Json To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-json-to-elasticsearch.md)
- [Recipe Json To Mongo](https://docs.fluentd.org/0.12/articles/recipe-json-to-mongo.md)
- [Recipe Json To S3](https://docs.fluentd.org/0.12/articles/recipe-json-to-s3.md)
- [Recipe Json To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-json-to-treasure-data.md)
- [Recipe Nginx To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-nginx-to-elasticsearch.md)
- [Recipe Nginx To Mongo](https://docs.fluentd.org/0.12/articles/recipe-nginx-to-mongo.md)
- [Recipe Nginx To S3](https://docs.fluentd.org/0.12/articles/recipe-nginx-to-s3.md)
- [Recipe Nginx To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-nginx-to-treasure-data.md)
- [Recipe Syslog To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-syslog-to-elasticsearch.md)
- [Recipe Syslog To Mongo](https://docs.fluentd.org/0.12/articles/recipe-syslog-to-mongo.md)
- [Recipe Syslog To S3](https://docs.fluentd.org/0.12/articles/recipe-syslog-to-s3.md)
- [Recipe Syslog To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-syslog-to-treasure-data.md)
- [Recipe Tsv To Elasticsearch](https://docs.fluentd.org/0.12/articles/recipe-tsv-to-elasticsearch.md)
- [Recipe Tsv To Mongo](https://docs.fluentd.org/0.12/articles/recipe-tsv-to-mongo.md)
- [Recipe Tsv To S3](https://docs.fluentd.org/0.12/articles/recipe-tsv-to-s3.md)
- [Recipe Tsv To Treasure Data](https://docs.fluentd.org/0.12/articles/recipe-tsv-to-treasure-data.md)
- [Ruby](https://docs.fluentd.org/0.12/articles/ruby.md)
- [Scala](https://docs.fluentd.org/0.12/articles/scala.md)
- [Splunk Like Grep And Alert Email](https://docs.fluentd.org/0.12/articles/splunk-like-grep-and-alert-email.md)

## 1.0

- [Introduction](https://docs.fluentd.org/readme.md)
- [Overview](https://docs.fluentd.org/quickstart.md)
- [Life of a Fluentd event](https://docs.fluentd.org/quickstart/life-of-a-fluentd-event.md)
- [Support](https://docs.fluentd.org/quickstart/support.md)
- [FAQ](https://docs.fluentd.org/quickstart/faq.md)
- [Logo](https://docs.fluentd.org/quickstart/logo.md)
- [fluent-package v5 vs td-agent v4](https://docs.fluentd.org/quickstart/fluent-package-v5-vs-td-agent.md)
- [Installation](https://docs.fluentd.org/installation.md)
- [Before Installation](https://docs.fluentd.org/installation/before-install.md)
- [Install fluent-package](https://docs.fluentd.org/installation/install-fluent-package.md)
- [RPM Package (Red Hat Linux)](https://docs.fluentd.org/installation/install-fluent-package/install-by-rpm-fluent-package.md)
- [DEB Package (Debian/Ubuntu)](https://docs.fluentd.org/installation/install-fluent-package/install-by-deb-fluent-package.md)
- [.dmg Package (macOS)](https://docs.fluentd.org/installation/install-fluent-package/install-by-dmg-fluent-package.md)
- [.msi Installer (Windows)](https://docs.fluentd.org/installation/install-fluent-package/install-by-msi-fluent-package.md)
- [Install calyptia-fluentd](https://docs.fluentd.org/installation/install-calyptia-fluentd.md)
- [RPM Package (Red Hat Linux)](https://docs.fluentd.org/installation/install-calyptia-fluentd/install-by-rpm-calyptia-fluentd.md)
- [DEB Package (Debian/Ubuntu)](https://docs.fluentd.org/installation/install-calyptia-fluentd/install-by-deb-calyptia-fluentd.md)
- [.dmg Package (macOS)](https://docs.fluentd.org/installation/install-calyptia-fluentd/install-by-dmg-calyptia-fluentd.md)
- [.msi Installer (Windows)](https://docs.fluentd.org/installation/install-calyptia-fluentd/install-by-msi-calyptia-fluentd.md)
- [Install by Ruby Gem](https://docs.fluentd.org/installation/install-by-gem.md)
- [Install from Source](https://docs.fluentd.org/installation/install-from-source.md)
- [Post Installation Guide](https://docs.fluentd.org/installation/post-installation-guide.md)
- [Obsolete Installation](https://docs.fluentd.org/installation/obsolete-installation.md)
- [Fluent Package v5 (EOL) Installation](https://docs.fluentd.org/installation/obsolete-installation/fluent-package-v5-eol-installation.md)
- [Install by RPM Package v5 (Red Hat Linux)](https://docs.fluentd.org/installation/obsolete-installation/fluent-package-v5-eol-installation/install-by-rpm-fluent-package-v5.md)
- [Install by DEB Package v5 (Debian/Ubuntu)](https://docs.fluentd.org/installation/obsolete-installation/fluent-package-v5-eol-installation/install-by-deb-fluent-package-v5.md)
- [Install by .msi Installer v5 (Windows)](https://docs.fluentd.org/installation/obsolete-installation/fluent-package-v5-eol-installation/install-by-msi-fluent-package-v5.md)
- [Treasure Agent v4 (EOL) Installation](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v4-eol-installation.md)
- [Install by RPM Package v4 (Red Hat Linux)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-rpm-td-agent-v4.md)
- [Install by DEB Package v4 (Debian/Ubuntu)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-deb-td-agent-v4.md)
- [Install by .dmg Package v4 (macOS)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-dmg-td-agent-v4.md)
- [Install by .msi Installer v4 (Windows)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-msi-td-agent-v4.md)
- [Treasure Agent v3 (EOL) Installation](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v3-eol-installation.md)
- [Install by RPM Package v3 (Red Hat Linux)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v3-eol-installation/install-by-rpm-td-agent-v3.md)
- [Install by DEB Package v3 (Debian/Ubuntu)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v3-eol-installation/install-by-deb-td-agent-v3.md)
- [Install by .dmg Package v3 (macOS)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v3-eol-installation/install-by-dmg-td-agent-v3.md)
- [Install by .msi Installer v3 (Windows)](https://docs.fluentd.org/installation/obsolete-installation/treasure-agent-v3-eol-installation/install-by-msi-td-agent-v3.md)
- [Configuration](https://docs.fluentd.org/configuration.md)
- [Config File Syntax](https://docs.fluentd.org/configuration/config-file.md)
- [Config File Syntax (YAML)](https://docs.fluentd.org/configuration/config-file-yaml.md)
- [Routing Examples](https://docs.fluentd.org/configuration/routing-examples.md)
- [Config: Common Parameters](https://docs.fluentd.org/configuration/plugin-common-parameters.md)
- [Config: Parse Section](https://docs.fluentd.org/configuration/parse-section.md)
- [Config: Buffer Section](https://docs.fluentd.org/configuration/buffer-section.md)
- [Config: Format Section](https://docs.fluentd.org/configuration/format-section.md)
- [Config: Extract Section](https://docs.fluentd.org/configuration/extract-section.md)
- [Config: Inject Section](https://docs.fluentd.org/configuration/inject-section.md)
- [Config: Transport Section](https://docs.fluentd.org/configuration/transport-section.md)
- [Config: Storage Section](https://docs.fluentd.org/configuration/storage-section.md)
- [Config: Service Discovery Section](https://docs.fluentd.org/configuration/service_discovery-section.md)
- [Deployment](https://docs.fluentd.org/deployment.md)
- [System Configuration](https://docs.fluentd.org/deployment/system-config.md)
- [Logging](https://docs.fluentd.org/deployment/logging.md)
- [Signals](https://docs.fluentd.org/deployment/signals.md)
- [RPC](https://docs.fluentd.org/deployment/rpc.md)
- [High Availability Config](https://docs.fluentd.org/deployment/high-availability.md)
- [Performance Tuning](https://docs.fluentd.org/deployment/performance-tuning-single-process.md)
- [Multi Process Workers](https://docs.fluentd.org/deployment/multi-process-workers.md)
- [Failure Scenarios](https://docs.fluentd.org/deployment/failure-scenarios.md)
- [Plugin Management](https://docs.fluentd.org/deployment/plugin-management.md)
- [Trouble Shooting](https://docs.fluentd.org/deployment/trouble-shooting.md)
- [Fluentd UI](https://docs.fluentd.org/deployment/fluentd-ui.md)
- [Linux Capability](https://docs.fluentd.org/deployment/linux-capability.md)
- [Command Line Option](https://docs.fluentd.org/deployment/command-line-option.md)
- [Source Only Mode](https://docs.fluentd.org/deployment/source-only-mode.md)
- [Zero-downtime restart](https://docs.fluentd.org/deployment/zero-downtime-restart.md)
- [Container Deployment](https://docs.fluentd.org/container-deployment.md)
- [Docker Image](https://docs.fluentd.org/container-deployment/install-by-docker.md)
- [Docker Logging Driver](https://docs.fluentd.org/container-deployment/docker-logging-driver.md)
- [Docker Compose](https://docs.fluentd.org/container-deployment/docker-compose.md)
- [Kubernetes](https://docs.fluentd.org/container-deployment/kubernetes.md)
- [Monitoring Fluentd](https://docs.fluentd.org/monitoring-fluentd.md)
- [Overview](https://docs.fluentd.org/monitoring-fluentd/overview.md)
- [Monitoring by Prometheus](https://docs.fluentd.org/monitoring-fluentd/monitoring-prometheus.md)
- [Monitoring by REST API](https://docs.fluentd.org/monitoring-fluentd/monitoring-rest-api.md)
- [Input Plugins](https://docs.fluentd.org/input.md)
- [tail](https://docs.fluentd.org/input/tail.md)
- [forward](https://docs.fluentd.org/input/forward.md)
- [udp](https://docs.fluentd.org/input/udp.md)
- [tcp](https://docs.fluentd.org/input/tcp.md)
- [unix](https://docs.fluentd.org/input/unix.md)
- [http](https://docs.fluentd.org/input/http.md)
- [syslog](https://docs.fluentd.org/input/syslog.md)
- [exec](https://docs.fluentd.org/input/exec.md)
- [sample](https://docs.fluentd.org/input/sample.md)
- [monitor\_agent](https://docs.fluentd.org/input/monitor_agent.md)
- [windows\_eventlog](https://docs.fluentd.org/input/windows_eventlog.md)
- [Output Plugins](https://docs.fluentd.org/output.md)
- [file](https://docs.fluentd.org/output/file.md)
- [forward](https://docs.fluentd.org/output/forward.md)
- [http](https://docs.fluentd.org/output/http.md)
- [exec](https://docs.fluentd.org/output/exec.md)
- [exec\_filter](https://docs.fluentd.org/output/exec_filter.md)
- [secondary\_file](https://docs.fluentd.org/output/secondary_file.md)
- [copy](https://docs.fluentd.org/output/copy.md)
- [relabel](https://docs.fluentd.org/output/relabel.md)
- [roundrobin](https://docs.fluentd.org/output/roundrobin.md)
- [stdout](https://docs.fluentd.org/output/stdout.md)
- [null](https://docs.fluentd.org/output/null.md)
- [s3](https://docs.fluentd.org/output/s3.md)
- [kafka](https://docs.fluentd.org/output/kafka.md)
- [elasticsearch](https://docs.fluentd.org/output/elasticsearch.md)
- [opensearch](https://docs.fluentd.org/output/opensearch.md)
- [mongo](https://docs.fluentd.org/output/mongo.md)
- [mongo\_replset](https://docs.fluentd.org/output/mongo_replset.md)
- [rewrite\_tag\_filter](https://docs.fluentd.org/output/rewrite_tag_filter.md)
- [webhdfs](https://docs.fluentd.org/output/webhdfs.md)
- [buffer](https://docs.fluentd.org/output/buffer.md)
- [Filter Plugins](https://docs.fluentd.org/filter.md)
- [record\_transformer](https://docs.fluentd.org/filter/record_transformer.md)
- [grep](https://docs.fluentd.org/filter/grep.md)
- [parser](https://docs.fluentd.org/filter/parser.md)
- [geoip](https://docs.fluentd.org/filter/geoip.md)
- [stdout](https://docs.fluentd.org/filter/stdout.md)
- [Parser Plugins](https://docs.fluentd.org/parser.md)
- [regexp](https://docs.fluentd.org/parser/regexp.md)
- [apache2](https://docs.fluentd.org/parser/apache2.md)
- [apache\_error](https://docs.fluentd.org/parser/apache_error.md)
- [nginx](https://docs.fluentd.org/parser/nginx.md)
- [syslog](https://docs.fluentd.org/parser/syslog.md)
- [ltsv](https://docs.fluentd.org/parser/ltsv.md)
- [csv](https://docs.fluentd.org/parser/csv.md)
- [tsv](https://docs.fluentd.org/parser/tsv.md)
- [json](https://docs.fluentd.org/parser/json.md)
- [msgpack](https://docs.fluentd.org/parser/msgpack.md)
- [multiline](https://docs.fluentd.org/parser/multiline.md)
- [none](https://docs.fluentd.org/parser/none.md)
- [Formatter Plugins](https://docs.fluentd.org/formatter.md)
- [out\_file](https://docs.fluentd.org/formatter/out_file.md)
- [json](https://docs.fluentd.org/formatter/json.md)
- [ltsv](https://docs.fluentd.org/formatter/ltsv.md)
- [csv](https://docs.fluentd.org/formatter/csv.md)
- [msgpack](https://docs.fluentd.org/formatter/msgpack.md)
- [hash](https://docs.fluentd.org/formatter/hash.md)
- [single\_value](https://docs.fluentd.org/formatter/single_value.md)
- [stdout](https://docs.fluentd.org/formatter/stdout.md)
- [tsv](https://docs.fluentd.org/formatter/tsv.md)
- [Buffer Plugins](https://docs.fluentd.org/buffer.md)
- [memory](https://docs.fluentd.org/buffer/memory.md)
- [file](https://docs.fluentd.org/buffer/file.md)
- [file\_single](https://docs.fluentd.org/buffer/file_single.md)
- [Storage Plugins](https://docs.fluentd.org/storage.md)
- [local](https://docs.fluentd.org/storage/local.md)
- [Service Discovery Plugins](https://docs.fluentd.org/service_discovery.md)
- [static](https://docs.fluentd.org/service_discovery/static.md)
- [file](https://docs.fluentd.org/service_discovery/file.md)
- [srv](https://docs.fluentd.org/service_discovery/srv.md)
- [Metrics Plugins](https://docs.fluentd.org/metrics.md)
- [local](https://docs.fluentd.org/metrics/local.md)
- [How-to Guides](https://docs.fluentd.org/how-to-guides.md)
- [Stream Analytics with Materialize](https://docs.fluentd.org/how-to-guides/stream-analytics-with-materialize.md)
- [Send Apache Logs to S3](https://docs.fluentd.org/how-to-guides/apache-to-s3.md)
- [Send Apache Logs to Minio](https://docs.fluentd.org/how-to-guides/apache-to-minio.md)
- [Send Apache Logs to Mongodb](https://docs.fluentd.org/how-to-guides/apache-to-mongodb.md)
- [Send Syslog Data to Graylog](https://docs.fluentd.org/how-to-guides/graylog.md)
- [Send Syslog Data to InfluxDB](https://docs.fluentd.org/how-to-guides/syslog-influxdb.md)
- [Send Syslog Data to Sematext](https://docs.fluentd.org/how-to-guides/logs-to-sematext.md)
- [Data Analytics with Treasure Data](https://docs.fluentd.org/how-to-guides/http-to-td.md)
- [Data Collection with Hadoop (HDFS)](https://docs.fluentd.org/how-to-guides/http-to-hdfs.md)
- [Simple Stream Processing with Fluentd](https://docs.fluentd.org/how-to-guides/filter-modify-apache.md)
- [Stream Processing with Norikra](https://docs.fluentd.org/how-to-guides/cep-norikra.md)
- [Stream Processing with Kinesis](https://docs.fluentd.org/how-to-guides/kinesis-stream.md)
- [Free Alternative To Splunk](https://docs.fluentd.org/how-to-guides/free-alternative-to-splunk-by-fluentd.md)
- [Email Alerting like Splunk](https://docs.fluentd.org/how-to-guides/splunk-like-grep-and-alert-email.md)
- [How to Parse Syslog Messages](https://docs.fluentd.org/how-to-guides/parse-syslog.md)
- [Cloud Data Logging with Raspberry Pi](https://docs.fluentd.org/how-to-guides/raspberrypi-cloud-data-logger.md)
- [Language Bindings](https://docs.fluentd.org/language-bindings.md)
- [Java](https://docs.fluentd.org/language-bindings/java.md)
- [Ruby](https://docs.fluentd.org/language-bindings/ruby.md)
- [Python](https://docs.fluentd.org/language-bindings/python.md)
- [Perl](https://docs.fluentd.org/language-bindings/perl.md)
- [PHP](https://docs.fluentd.org/language-bindings/php.md)
- [Nodejs](https://docs.fluentd.org/language-bindings/nodejs.md)
- [Scala](https://docs.fluentd.org/language-bindings/scala.md)
- [Plugin Development](https://docs.fluentd.org/plugin-development.md)
- [How to Write Input Plugin](https://docs.fluentd.org/plugin-development/api-plugin-input.md)
- [How to Write Base Plugin](https://docs.fluentd.org/plugin-development/api-plugin-base.md)
- [How to Write Buffer Plugin](https://docs.fluentd.org/plugin-development/api-plugin-buffer.md)
- [How to Write Filter Plugin](https://docs.fluentd.org/plugin-development/api-plugin-filter.md)
- [How to Write Formatter Plugin](https://docs.fluentd.org/plugin-development/api-plugin-formatter.md)
- [How to Write Output Plugin](https://docs.fluentd.org/plugin-development/api-plugin-output.md)
- [How to Write Parser Plugin](https://docs.fluentd.org/plugin-development/api-plugin-parser.md)
- [How to Write Storage Plugin](https://docs.fluentd.org/plugin-development/api-plugin-storage.md)
- [How to Write Service Discovery Plugin](https://docs.fluentd.org/plugin-development/api-plugin-service_discovery.md)
- [How to Write Tests for Plugin](https://docs.fluentd.org/plugin-development/plugin-test-code.md)
- [Configuration Parameter Types](https://docs.fluentd.org/plugin-development/api-config-types.md)
- [Upgrade Plugin from v0.12](https://docs.fluentd.org/plugin-development/plugin-update-from-v0.12.md)
- [Plugin Helper API](https://docs.fluentd.org/plugin-helper-overview.md)
- [Plugin Helper: Child Process](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-child_process.md)
- [Plugin Helper: Compat Parameters](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-compat_parameters.md)
- [Plugin Helper: Event Emitter](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-event_emitter.md)
- [Plugin Helper: Event Loop](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-event_loop.md)
- [Plugin Helper: Extract](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-extract.md)
- [Plugin Helper: Formatter](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-formatter.md)
- [Plugin Helper: Metrics](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-metrics.md)
- [Plugin Helper: Inject](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-inject.md)
- [Plugin Helper: Parser](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-parser.md)
- [Plugin Helper: Record Accessor](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-record_accessor.md)
- [Plugin Helper: Server](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-server.md)
- [Plugin Helper: Socket](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-socket.md)
- [Plugin Helper: Storage](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-storage.md)
- [Plugin Helper: Thread](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-thread.md)
- [Plugin Helper: Timer](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-timer.md)
- [Plugin Helper: Http Server](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-http_server.md)
- [Plugin Helper: Service Discovery](https://docs.fluentd.org/plugin-helper-overview/api-plugin-helper-service_discovery.md)
- [Troubleshooting Guide](https://docs.fluentd.org/troubleshooting-guide.md)
- [Appendix](https://docs.fluentd.org/appendix.md)
- [Update from v0.12 to v1](https://docs.fluentd.org/appendix/update-from-v0.12.md)
- [td-agent v2 vs v3 vs v4](https://docs.fluentd.org/appendix/td-agent-v2-vs-v3-vs-v4.md)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on a page URL with the `ask` query parameter:
```
GET https://docs.fluentd.org/readme.md?ask=<question>
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.