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diff --git a/collectors/python.d.plugin/oracledb/integrations/oracle_db.md b/collectors/python.d.plugin/oracledb/integrations/oracle_db.md new file mode 100644 index 000000000..cb6637e8a --- /dev/null +++ b/collectors/python.d.plugin/oracledb/integrations/oracle_db.md @@ -0,0 +1,225 @@ +<!--startmeta +custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/oracledb/README.md" +meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/oracledb/metadata.yaml" +sidebar_label: "Oracle DB" +learn_status: "Published" +learn_rel_path: "Data Collection/Databases" +message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" +endmeta--> + +# Oracle DB + + +<img src="https://netdata.cloud/img/oracle.svg" width="150"/> + + +Plugin: python.d.plugin +Module: oracledb + +<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> + +## Overview + +This collector monitors OracleDB database metrics about sessions, tables, memory and more. + +It collects the metrics via the supported database client library + +This collector is supported on all platforms. + +This collector supports collecting metrics from multiple instances of this integration, including remote instances. + +In order for this collector to work, it needs a read-only user `netdata` in the RDBMS. + + +### Default Behavior + +#### Auto-Detection + +When the requirements are met, databases on the local host on port 1521 will be auto-detected + +#### Limits + +The default configuration for this integration does not impose any limits on data collection. + +#### 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. + +These metrics refer to the entire monitored application. + +### Per Oracle DB instance + + + +This scope has no labels. + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| oracledb.session_count | total, active | sessions | +| oracledb.session_limit_usage | usage | % | +| oracledb.logons | logons | events/s | +| oracledb.physical_disk_read_writes | reads, writes | events/s | +| oracledb.sorts_on_disks | sorts | events/s | +| oracledb.full_table_scans | full table scans | events/s | +| oracledb.database_wait_time_ratio | wait time ratio | % | +| oracledb.shared_pool_free_memory | free memory | % | +| oracledb.in_memory_sorts_ratio | in-memory sorts | % | +| oracledb.sql_service_response_time | time | seconds | +| oracledb.user_rollbacks | rollbacks | events/s | +| oracledb.enqueue_timeouts | enqueue timeouts | events/s | +| oracledb.cache_hit_ration | buffer, cursor, library, row | % | +| oracledb.global_cache_blocks | corrupted, lost | events/s | +| oracledb.activity | parse count, execute count, user commits, user rollbacks | events/s | +| oracledb.wait_time | application, configuration, administrative, concurrency, commit, network, user I/O, system I/O, scheduler, other | ms | +| oracledb.tablespace_size | a dimension per active tablespace | KiB | +| oracledb.tablespace_usage | a dimension per active tablespace | KiB | +| oracledb.tablespace_usage_in_percent | a dimension per active tablespace | % | +| oracledb.allocated_size | a dimension per active tablespace | B | +| oracledb.allocated_usage | a dimension per active tablespace | B | +| oracledb.allocated_usage_in_percent | a dimension per active tablespace | % | + + + +## Alerts + +There are no alerts configured by default for this integration. + + +## Setup + +### Prerequisites + +#### Install the python-oracledb package + +You can follow the official guide below to install the required package: + +Source: https://python-oracledb.readthedocs.io/en/latest/user_guide/installation.html + + +#### Create a read only user for netdata + +Follow the official instructions for your oracle RDBMS to create a read-only user for netdata. The operation may follow this approach + +Connect to your Oracle database with an administrative user and execute: + +```bash +CREATE USER netdata IDENTIFIED BY <PASSWORD>; + +GRANT CONNECT TO netdata; +GRANT SELECT_CATALOG_ROLE TO netdata; +``` + + +#### Edit the configuration + +Edit the configuration troubleshooting: + +1. Provide a valid user for the netdata collector to access the database +2. Specify the network target this database is listening. + + + +### Configuration + +#### File + +The configuration file name for this integration is `python.d/oracledb.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/oracledb.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</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 | +| user | The username for the user account. | no | True | +| password | The password for the user account. | no | True | +| server | The IP address or hostname (and port) of the Oracle Database Server. | no | True | +| service | The Oracle Database service name. To view the services available on your server run this query, `select SERVICE_NAME from gv$session where sid in (select sid from V$MYSTAT)`. | no | True | +| protocol | one of the strings "tcp" or "tcps" indicating whether to use unencrypted network traffic or encrypted network traffic | no | True | + +</details> + +#### Examples + +##### Basic + +A basic example configuration, two jobs described for two databases. + +```yaml +local: + user: 'netdata' + password: 'secret' + server: 'localhost:1521' + service: 'XE' + protocol: 'tcps' + +remote: + user: 'netdata' + password: 'secret' + server: '10.0.0.1:1521' + service: 'XE' + protocol: 'tcps' + +``` + + +## Troubleshooting + +### Debug Mode + +To troubleshoot issues with the `oracledb` 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 oracledb debug trace + ``` + + |