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Diffstat (limited to 'collectors/python.d.plugin/tomcat')
| l---------[-rw-r--r--] | collectors/python.d.plugin/tomcat/README.md | 77 | ||||
| -rw-r--r-- | collectors/python.d.plugin/tomcat/integrations/tomcat.md | 202 | ||||
| -rw-r--r-- | collectors/python.d.plugin/tomcat/metadata.yaml | 2 |
3 files changed, 204 insertions, 77 deletions
diff --git a/collectors/python.d.plugin/tomcat/README.md b/collectors/python.d.plugin/tomcat/README.md index 923d6238f..997090c35 100644..120000 --- a/collectors/python.d.plugin/tomcat/README.md +++ b/collectors/python.d.plugin/tomcat/README.md @@ -1,76 +1 @@ -<!-- -title: "Apache Tomcat monitoring with Netdata" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/tomcat/README.md" -sidebar_label: "Tomcat" -learn_status: "Published" -learn_topic_type: "References" -learn_rel_path: "Integrations/Monitor/Webapps" ---> - -# Apache Tomcat collector - -Presents memory utilization of tomcat containers. - -Charts: - -1. **Requests** per second - - - accesses - -2. **Volume** in KB/s - - - volume - -3. **Threads** - - - current - - busy - -4. **JVM Free Memory** in MB - - - jvm - -## Configuration - -Edit the `python.d/tomcat.conf` configuration file using `edit-config` from the Netdata [config -directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`. - -```bash -cd /etc/netdata # Replace this path with your Netdata config directory, if different -sudo ./edit-config python.d/tomcat.conf -``` - -```yaml -localhost: - name : 'local' - url : 'http://127.0.0.1:8080/manager/status?XML=true' - user : 'tomcat_username' - pass : 'secret_tomcat_password' -``` - -Without configuration, module attempts to connect to `http://localhost:8080/manager/status?XML=true`, without any credentials. -So it will probably fail. - - - - -### Troubleshooting - -To troubleshoot issues with the `tomcat` module, run the `python.d.plugin` with the debug option enabled. The -output will give you the output of the data collection job or error messages on why the collector isn't working. - -First, navigate to your plugins directory, usually they are located under `/usr/libexec/netdata/plugins.d/`. If that's -not the case on your system, open `netdata.conf` and look for the setting `plugins directory`. Once you're in the -plugin's directory, switch to the `netdata` user. - -```bash -cd /usr/libexec/netdata/plugins.d/ -sudo su -s /bin/bash netdata -``` - -Now you can manually run the `tomcat` module in debug mode: - -```bash -./python.d.plugin tomcat debug trace -``` - +integrations/tomcat.md
\ No newline at end of file diff --git a/collectors/python.d.plugin/tomcat/integrations/tomcat.md b/collectors/python.d.plugin/tomcat/integrations/tomcat.md new file mode 100644 index 000000000..8210835c1 --- /dev/null +++ b/collectors/python.d.plugin/tomcat/integrations/tomcat.md @@ -0,0 +1,202 @@ +<!--startmeta +custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/tomcat/README.md" +meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/tomcat/metadata.yaml" +sidebar_label: "Tomcat" +learn_status: "Published" +learn_rel_path: "Data Collection/Web Servers and Web Proxies" +message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" +endmeta--> + +# Tomcat + + +<img src="https://netdata.cloud/img/tomcat.svg" width="150"/> + + +Plugin: python.d.plugin +Module: tomcat + +<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> + +## Overview + +This collector monitors Tomcat metrics about bandwidth, processing time, threads and more. + + +It parses the information provided by the http endpoint of the `/manager/status` in XML format + + +This collector is supported on all platforms. + +This collector supports collecting metrics from multiple instances of this integration, including remote instances. + +You need to provide the username and the password, to access the webserver's status page. Create a seperate user with read only rights for this particular endpoint + +### Default Behavior + +#### Auto-Detection + +If the Netdata Agent and the Tomcat webserver are in the same host, without configuration, module attempts to connect to http://localhost:8080/manager/status?XML=true, without any credentials. So it will probably fail. + +#### Limits + +This module is not supporting SSL communication. If you want a Netdata Agent to monitor a Tomcat deployment, you shouldnt try to monitor it via public network (public internet). Credentials are passed by Netdata in an unsecure port + +#### Performance Impact + +The default configuration for this integration is not expected to impose a significant performance impact on the system. + + +## Metrics + +Metrics grouped by *scope*. + +The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. + + + +### Per Tomcat instance + +These metrics refer to the entire monitored application. + +This scope has no labels. + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| tomcat.accesses | accesses, errors | requests/s | +| tomcat.bandwidth | sent, received | KiB/s | +| tomcat.processing_time | processing time | seconds | +| tomcat.threads | current, busy | current threads | +| tomcat.jvm | free, eden, survivor, tenured, code cache, compressed, metaspace | MiB | +| tomcat.jvm_eden | used, committed, max | MiB | +| tomcat.jvm_survivor | used, committed, max | MiB | +| tomcat.jvm_tenured | used, committed, max | MiB | + + + +## Alerts + +There are no alerts configured by default for this integration. + + +## Setup + +### Prerequisites + +#### Create a read-only `netdata` user, to monitor the `/status` endpoint. + +This is necessary for configuring the collector. + + +### Configuration + +#### File + +The configuration file name for this integration is `python.d/tomcat.conf`. + + +You can edit the configuration file using the `edit-config` script from the +Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory). + +```bash +cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata +sudo ./edit-config python.d/tomcat.conf +``` +#### Options + +There are 2 sections: + +* Global variables +* One or more JOBS that can define multiple different instances to monitor. + +The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition. + +Every configuration JOB starts with a `job_name` value which will appear in the dashboard, unless a `name` parameter is specified. + + +<details><summary>Config options per job</summary> + +| Name | Description | Default | Required | +|:----|:-----------|:-------|:--------:| +| update_every | Sets the default data collection frequency. | 5 | False | +| priority | Controls the order of charts at the netdata dashboard. | 60000 | False | +| autodetection_retry | Sets the job re-check interval in seconds. | 0 | False | +| penalty | Indicates whether to apply penalty to update_every in case of failures. | yes | False | +| url | The URL of the Tomcat server's status endpoint. Always add the suffix ?XML=true. | no | True | +| user | A valid user with read permission to access the /manager/status endpoint of the server. Required if the endpoint is password protected | no | False | +| pass | A valid password for the user in question. Required if the endpoint is password protected | no | False | +| connector_name | The connector component that communicates with a web connector via the AJP protocol, e.g ajp-bio-8009 | | False | + +</details> + +#### Examples + +##### Basic + +A basic example configuration + +```yaml +localhost: + name : 'local' + url : 'http://localhost:8080/manager/status?XML=true' + +``` +##### Using an IPv4 endpoint + +A typical configuration using an IPv4 endpoint + +<details><summary>Config</summary> + +```yaml +local_ipv4: + name : 'local' + url : 'http://127.0.0.1:8080/manager/status?XML=true' + +``` +</details> + +##### Using an IPv6 endpoint + +A typical configuration using an IPv6 endpoint + +<details><summary>Config</summary> + +```yaml +local_ipv6: + name : 'local' + url : 'http://[::1]:8080/manager/status?XML=true' + +``` +</details> + + + +## Troubleshooting + +### Debug Mode + +To troubleshoot issues with the `tomcat` collector, run the `python.d.plugin` with the debug option enabled. The output +should give you clues as to why the collector isn't working. + +- Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on + your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`. + + ```bash + cd /usr/libexec/netdata/plugins.d/ + ``` + +- Switch to the `netdata` user. + + ```bash + sudo -u netdata -s + ``` + +- Run the `python.d.plugin` to debug the collector: + + ```bash + ./python.d.plugin tomcat debug trace + ``` + + diff --git a/collectors/python.d.plugin/tomcat/metadata.yaml b/collectors/python.d.plugin/tomcat/metadata.yaml index c22f4f58b..e68526073 100644 --- a/collectors/python.d.plugin/tomcat/metadata.yaml +++ b/collectors/python.d.plugin/tomcat/metadata.yaml @@ -45,7 +45,7 @@ modules: prerequisites: list: - title: Create a read-only `netdata` user, to monitor the `/status` endpoint. - description: You will need this configuring the collector + description: This is necessary for configuring the collector. configuration: file: name: "python.d/tomcat.conf" |