Verify the status of Jiva volume

Topics covered in this article:

• Verify status using mayactl
• Verify status using curl command

This can be checked by 2 methods.

1. Using mayactl

2. Using curl command

Using mayactl

1. Get the PV name for the Jiva volume PVC using the following:

   kubectl get pvc <namespace-of-pvc>

   Example command:

   kubectl get pvc -n default

   Example output:

   NAME             	  STATUS   VOLUME                                 	  CAPACITY   ACCESS MODES   STORAGECLASS   AGE
   jiva-vol1-1r-claim   Bound	   pvc-23b6b763-c010-11e9-ad45-42010a8001c8   4G         RWO        	  jiva-1r    	   25m
   

2. Exec into maya-apiserver pod using the following command:

   kubectl exec -it <maya-apiserver-podname> -n <openebs_installed_namespace> bash

   Example command:

   kubectl exec -it maya-apiserver-6797f79566-4bq2d -n openebs bash

3. Run the mayactl command to get the status of the Jiva volume:

   mayactl volume describe --volname <pv-name> -n <namespace-of-pvc>

   Example command:

   bash-4.3# mayactl volume describe --volname pvc-23b6b763-c010-11e9-ad45-42010a8001c8 -n default

   Example output:

   Portal Details :
   ----------------
   IQN           	:   iqn.2016-09.com.openebs.jiva:pvc-23b6b763-c010-11e9-ad45-42010a8001c8
   Volume        	:   pvc-23b6b763-c010-11e9-ad45-42010a8001c8
   Portal        	:   10.31.242.97:3260
   Size          	:   4G
   Controller Status :   running,running
   Controller Node   :   gke-sai-bdd-test-pool-1-6b35426e-8gfj
   Replica Count 	:   3
   
   Replica Details :
   -----------------
   NAME                                                          	ACCESSMODE  	STATUS  	IP          	NODE
   -----                                                         	----------- 	------- 	---         	-----
   pvc-23b6b763-c010-11e9-ad45-42010a8001c8-rep-7d49c9f499-blrlv 	RW          	running 	10.28.28.11 	gke-sai-bdd-test-pool-1-6b35426e-8gfj
   pvc-23b6b763-c010-11e9-ad45-42010a8001c8-rep-7d49c9f499-qcmcd 	RW          	running 	10.28.27.13 	gke-sai-bdd-test-pool-1-6b35426e-j23f
   pvc-23b6b763-c010-11e9-ad45-42010a8001c8-rep-7d49c9f499-xm6jp 	RW          	running 	10.28.26.21 	gke-sai-bdd-test-pool-1-6b35426e-4xcs
   

Using curl command

1. Get the controller pod of the Jiva volume using the command:

   kubectl get pods -l openebs.io/controller=jiva-controller -n <pvc-namespace>

   Example command:

   kubectl get pods -l openebs.io/controller=jiva-controller -n default

   Example output:

   NAME                                                        	   READY   STATUS	   RESTARTS    AGE
   pvc-23b6b763-c010-11e9-ad45-42010a8001c8-ctrl-c45c44b9c-m7wnf   2/2 	   Running   0      	   12m

2. Exec into the controller pod the Jiva volume using the command

   kubectl exec -it <controller-pod-name> -n <pvc-namespace> bash

   Example command:

   kubectl exec -it pvc-23b6b763-c010-11e9-ad45-42010a8001c8-ctrl-c45c44b9c-m7wnf -n default bash

   Example output:

   Defaulting container name to pvc-23b6b763-c010-11e9-ad45-42010a8001c8-ctrl-con.
   Use 'kubectl describe pod/pvc-23b6b763-c010-11e9-ad45-42010a8001c8-ctrl-c45c44b9c-m7wnf -n default' to see all of the containers in this pod.
   root@pvc-23b6b763-c010-11e9-ad45-42010a8001c8-ctrl-c45c44b9c-m7wnf:/#

3. Curl the details of the Jiva volume using the command:

   curl http://localhost:9501/v1/volumes

   Example output:

   {"data":[{"actions":{"deleteSnapshot":"http://localhost:9501/v1/volumes/cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA==?action=deleteSnapshot","revert":"http://localhost:9501/v1/volumes/cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA==?action=revert","shutdown":"http://localhost:9501/v1/volumes/cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA==?action=shutdown","snapshot":"http://localhost:9501/v1/volumes/cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA==?action=snapshot"},"id":"cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA==","links":{"self":"http://localhost:9501/v1/volumes/cHZjLTIzYjZiNzYzLWMwMTAtMTFlOS1hZDQ1LTQyMDEwYTgwMDFjOA=="},"name":"pvc-23b6b763-c010-11e9-ad45-42010a8001c8","readOnly":"false","replicaCount":3,"type":"volume"}],"links":{"self":"http://localhost:9501/v1/volumes"},"resourceType":"volume","type":"collection"}

   From the above JSON output, one can get details of the Jiva volume.