Verifying Kapacitor Installed Using an RPM Package

Configuring InfluxDB

Prerequisite: InfluxDB has been installed and initialized successfully. For details about how to install and initialize InfluxDB, see InfluxDB Installation Guide.

1. Create a bucket named kapasts in InfluxDB. -r 9h indicates that the data retention period is 9 hours.

   1	influx bucket create -n kapasts -r 9h

   

   

   Viewing the bucket:

   1	influx bucket list

   Deleting the bucket:

   1	influx bucket delete --name kapasts

2. Create a user for connecting to Kapacitor. (Change the ID based on your requirements.)

   influx v1 auth create --username kapa --password 123456 --write-bucket ID --read-bucket ID

   

   Querying the user:

   1	influx v1 auth list

   Deleting the user:

   1	influx v1 auth delete --username kapa

3. Create a DBRP mapping for the user to connect to Kapacitor. (Change the ID based on your requirements.)

   1	influx v1 dbrp create --bucket-id ID --db kapadb --rp rpv2 --default

   

   

   Viewing the DBRP mapping:

   1	./influx v1 dbrp list

   Deleting the DBRP mapping:

   1	./influx v1 dbrp delete --id ID

Configuring Kapacitor

Prerequisite: Kapacitor has been installed but not started.

1. Modify the Kapacitor configuration file, as shown in the following figure. In the preceding command, urls indicates the IP address and port number of the InfluxData service, username and password indicate the user name and password in the influx v1 auth create command, set disable-subscriptions to true, and set subscriptions-mode to cluster.

   1	vi /etc/kapacitor/kapacitor.conf

   

2. Stop the Kapacitor service. (Change the PID based on your requirements.)

   ps -ef | grep kapacitord
   kill -9 PID

3. Start the Kapacitor service.

   1	nohup kapacitord &

Verifying Basic Functions of Kapacitor

1. Query the overall running status of Kapacitor.

   1	kapacitor stats general

   

2. View the write operations that are being performed by Kapacitor.

   1	kapacitor stats ingress

   

3. Query the database information.

   1	kapacitor list tasks