目录
输入和输出集成概述
此插件与 Apache HTTP 服务器的 mod_status 接口连接,以收集和报告服务器的性能指标。
Telegraf Elasticsearch 插件无缝地将指标发送到 Elasticsearch 服务器。 该插件处理模板创建和动态索引管理,并支持各种 Elasticsearch 特有功能,以确保数据格式正确,以便于存储和检索。
集成详情
Apache
Apache 插件使用 Apache HTTP 服务器的 mod_status 模块收集服务器性能信息。 它依赖于 mod_status 功能,该功能必须在 Apache 配置中显式启用才能访问机器可读的状态页面。 此插件允许用户获取与 Apache 运行性能相关的多个指标,包括工作进程状态、连接统计信息和服务器负载,从而有助于实时有效地监控和排除 Web 服务器性能故障。
Elasticsearch
此插件将指标写入 Elasticsearch,这是一个分布式、RESTful 搜索和分析引擎,能够以近乎实时的速度存储大量数据。 它旨在处理 Elasticsearch 5.x 到 7.x 版本,并利用其动态模板功能来正确管理数据类型映射。 该插件支持高级功能,例如模板管理、动态索引命名以及与 OpenSearch 的集成。 它还允许配置 Elasticsearch 节点的身份验证和运行状况监控。
配置
Apache
[[inputs.apache]]
## An array of URLs to gather from, must be directed at the machine
## readable version of the mod_status page including the auto query string.
## Default is "http://localhost/server-status?auto".
urls = ["http://localhost/server-status?auto"]
## Credentials for basic HTTP authentication.
# username = "myuser"
# password = "mypassword"
## Maximum time to receive response.
# response_timeout = "5s"
## Optional TLS Config
# tls_ca = "/etc/telegraf/ca.pem"
# tls_cert = "/etc/telegraf/cert.pem"
# tls_key = "/etc/telegraf/key.pem"
## Use TLS but skip chain & host verification
# insecure_skip_verify = false
Elasticsearch
[[outputs.elasticsearch]]
## The full HTTP endpoint URL for your Elasticsearch instance
## Multiple urls can be specified as part of the same cluster,
## this means that only ONE of the urls will be written to each interval
urls = [ "http://node1.es.example.com:9200" ] # required.
## Elasticsearch client timeout, defaults to "5s" if not set.
timeout = "5s"
## Set to true to ask Elasticsearch a list of all cluster nodes,
## thus it is not necessary to list all nodes in the urls config option
enable_sniffer = false
## Set to true to enable gzip compression
enable_gzip = false
## Set the interval to check if the Elasticsearch nodes are available
## Setting to "0s" will disable the health check (not recommended in production)
health_check_interval = "10s"
## Set the timeout for periodic health checks.
# health_check_timeout = "1s"
## HTTP basic authentication details.
## HTTP basic authentication details
# username = "telegraf"
# password = "mypassword"
## HTTP bearer token authentication details
# auth_bearer_token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
## Index Config
## The target index for metrics (Elasticsearch will create if it not exists).
## You can use the date specifiers below to create indexes per time frame.
## The metric timestamp will be used to decide the destination index name
# %Y - year (2016)
# %y - last two digits of year (00..99)
# %m - month (01..12)
# %d - day of month (e.g., 01)
# %H - hour (00..23)
# %V - week of the year (ISO week) (01..53)
## Additionally, you can specify a tag name using the notation {{tag_name}}
## which will be used as part of the index name. If the tag does not exist,
## the default tag value will be used.
# index_name = "telegraf-{{host}}-%Y.%m.%d"
# default_tag_value = "none"
index_name = "telegraf-%Y.%m.%d" # required.
## Optional Index Config
## Set to true if Telegraf should use the "create" OpType while indexing
# use_optype_create = false
## Optional TLS Config
# tls_ca = "/etc/telegraf/ca.pem"
# tls_cert = "/etc/telegraf/cert.pem"
# tls_key = "/etc/telegraf/key.pem"
## Use TLS but skip chain & host verification
# insecure_skip_verify = false
## Template Config
## Set to true if you want telegraf to manage its index template.
## If enabled it will create a recommended index template for telegraf indexes
manage_template = true
## The template name used for telegraf indexes
template_name = "telegraf"
## Set to true if you want telegraf to overwrite an existing template
overwrite_template = false
## If set to true a unique ID hash will be sent as sha256(concat(timestamp,measurement,series-hash)) string
## it will enable data resend and update metric points avoiding duplicated metrics with different id's
force_document_id = false
## Specifies the handling of NaN and Inf values.
## This option can have the following values:
## none -- do not modify field-values (default); will produce an error if NaNs or infs are encountered
## drop -- drop fields containing NaNs or infs
## replace -- replace with the value in "float_replacement_value" (default: 0.0)
## NaNs and inf will be replaced with the given number, -inf with the negative of that number
# float_handling = "none"
# float_replacement_value = 0.0
## Pipeline Config
## To use a ingest pipeline, set this to the name of the pipeline you want to use.
# use_pipeline = "my_pipeline"
## Additionally, you can specify a tag name using the notation {{tag_name}}
## which will be used as part of the pipeline name. If the tag does not exist,
## the default pipeline will be used as the pipeline. If no default pipeline is set,
## no pipeline is used for the metric.
# use_pipeline = "{{es_pipeline}}"
# default_pipeline = "my_pipeline"
#
# Custom HTTP headers
# To pass custom HTTP headers please define it in a given below section
# [outputs.elasticsearch.headers]
# "X-Custom-Header" = "custom-value"
## Template Index Settings
## Overrides the template settings.index section with any provided options.
## Defaults provided here in the config
# template_index_settings = {
# refresh_interval = "10s",
# mapping.total_fields.limit = 5000,
# auto_expand_replicas = "0-1",
# codec = "best_compression"
# }
输入和输出集成示例
Apache
-
实时性能监控:使用 Apache 输入插件设置实时仪表板,显示 Apache 服务器的关键性能指标。 通过可视化 BusyWorkers 和平均负载等指标,您可以快速识别性能瓶颈和服务器运行状况问题,从而帮助主动管理 Web 流量负载。
-
服务器问题自动警报:根据此插件收集的指标实施警报,以便在性能下降时通知管理员。 例如,如果
BusyWorkers
指标超过某个阈值,则可以触发自动警报,从而确保及时响应事件,以维持正常运行时间和服务的可靠性。 -
历史性能分析:将 Apache 插件收集的数据与长期存储解决方案相结合,以跟踪随时间推移的性能趋势。 这些累积的数据有助于了解使用模式、预测资源需求以及就服务器扩展或优化做出明智的决策。
-
跨系统监控:使用 Telegraf 的功能将从 Apache 收集的指标与来自 Web 堆栈其他组件的指标集成,以将数据发送到集中式监控解决方案。 这种整体视图可以简化不同技术之间的故障排除和协调,从而确保整个系统的最佳性能。
Elasticsearch
-
基于时间的索引:使用此插件将指标存储在 Elasticsearch 中,以根据收集时间索引每个指标。 例如,CPU 指标可以存储在名为
telegraf-2023.01.01
的每日索引中,从而可以轻松进行基于时间的查询和保留策略。 -
动态模板管理:利用模板管理功能自动创建针对您的指标定制的自定义模板。 这使您可以定义如何索引和分析不同的字段,而无需手动配置 Elasticsearch,从而确保用于查询的最佳数据结构。
-
OpenSearch 兼容性:如果您正在使用 AWS OpenSearch,则可以通过激活兼容模式来配置此插件以实现无缝工作,从而确保您现有的 Elasticsearch 客户端保持功能并与较新的集群设置兼容。
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