Are you using Apache CouchDB in your application? You can use IDERA Uptime Cloud Monitor to monitor your Apache CouchDB for availability and performance.
Uptime Cloud Monitor from IDERA (UCM) offers a SAAS based out-of-the-box solution for monitoring Microsoft SQL Server for performance and availability. If you are not familiar with the concept of custom metrics as used in Uptime Cloud Monitor, please go through Custom Metrics information once before continuing with this document.
There are three steps that you need to do to start monitoring a Apache CouchDB service:
Figure 1: In your Uptime Cloud Monitor Account, navigate to Custom>Getting Started
Login to your Uptime Cloud Monitor account and navigate to Custom tab -> Getting Started. Click on Apache CouchDB icon. .
Figure 2: The Apache CouchDB agent installation script
Click on icon to copy the installer script to your clipboard. Paste the command into the terminal window on the server where you want to install the agent. Script can be run on the server running Apache CouchDB, or it can be a different server, but this server will need to be continually running in order to monitor Apache CouchDB.
As soon as the script is run on a terminal with root access, it starts downloading the required Apache CouchDB monitoring agent on your server. You will need to configure the following items in the agent installation process. Item specified in square brackets ( [ ] ) are the default.
Figure 3: Executing the Apache CouchDB agent installation script with user as copperegg, Group as copperegg and monitoring frequency as 60 seconds
Figure 4: Executing the Apache CouchDB agent installation script with group name as “Apache CouchDB” , group label as “Apache CouchDB Metrics” , Dashboard as “Apache CouchDB”
3. Group label, group name and dashboard name for custom metrics [Apache CouchDB][Apache CouchDB Metrics][Apache CouchDB]
Figure 5: Executing the Couch agent installation script with unique id , server URL and port. Only one Apache CouchDB server is added for monitoring.
4. Unique name for this db server. [<user>-Apache CouchDB] 5. Server details : URL for service. [localhost] 6. Username and Password are optional. 7. Server details : Port for service.  8. After configuring one node, you’ll get an option to add more Apache CouchDB servers.
Figure 6: Executing the Apache CouchDB agent installation script with an upstart init file and the default value for log file name. The installation completes successfully!
9. Configure log file name and upstart job name (defaults present) [/usr/local/copperegg/log/Apache CouchDB_metrics.log][/etc/init/revealmetrics_Apache CouchDB.conf]
Navigate to Dashboard and you will see a new Apache CouchDB Dashboards have been added automatically by the installer.
Figure 7: A new Dashboard for Apache CouchDB has been added
As the installed script executes, you will notice data samples appearing on the widgets for this Dashboard.
Figure 8: Widget inside Apache CouchDB Dashboard displaying count of open databases.
Figure 9: Widget inside Apache CouchDB Dashboard displaying count of database reads.
Figure 10: Widget inside Apache CouchDB Dashboard displaying count of database writes.
Uptime Cloud Monitor currently monitors 31 metrics which cover most of the important metrics for Apache CouchDB from a performance and stability perspective. You can see these 31 metrics by navigating to the Custom Tab > Custom Objects and selecting Details on the Custom Metrics Group Label [Apache CouchDB Metrics] that was given as installation input. For some of these metrics, alerts have been automatically created (see section 3 below). To create new alerts see section: Configuring your own Alerts for Apache CouchDB.
The metrics are:
As soon as your Apache CouchDB Monitoring Dashboard comes up, you will notice that some alert configurations have been automatically created by our Installation Script (under Alerts > Configure Alerts). These pre-configured alerts for Apache CouchDB include:
HTTP 4xx 5xx Requests
The number of failed HTTP requests.
Alert will be triggered for every request.
Length of a request inside Apache CouchDB without MochiWeb
Alert will be triggered when request time exceeds 48000 ms
If the alerting condition is met for these pre-configured alerts, some alert notifications may also be triggered.
Figure 11: A new alert being added that will be triggered when Apache CouchDB request time metric exceeds a threshold of 400000 within a time period of 1 min
Alerts can also be configured against any of these 31 monitored metrics for Apache CouchDB.
You can configure new alerts that will be triggered when performance issues with Apache CouchDB arise. You can also configure the notification mechanisms for a triggered alert.
Notification mechanisms include:
Webhooks are also exposed for clients to configure custom notification mechanisms. More about setting up website probe alerts can be found here.
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