Monitor Deployment

Use the kubectl get and the kubectl describe commands to monitor the progress of the active standby pair as it is provisioned.

Note:

For the kubectl get timestenclassic and kubectl describe timestenclassic commands, you can alternatively specify kubectl get ttc and kubectl describe ttc respectively. timestenclassic and ttc are synonymous when used in these commands, and return the same results. The first kubectl get and the first kubectl describe examples in this appendix use timestenclassic. The remaining examples in this appendix use ttc for simplicity.

1. Use the kubectl get command and review the STATE field. Observe the value is Initializing. The active standby pair provisioning has begun, but is not yet complete.

   % kubectl get timestenclassic sample
   NAME     STATE          ACTIVE   AGE
   sample   Initializing   None     11s

2. Use the kubectl describe command to view the initial provisioning in detail.

   % kubectl describe timestenclassic sample
   Name:         sample
   Namespace:    mynamespace
   Labels:       <none>
   Annotations:  <none>
   API Version:  timesten.oracle.com/v1
   Kind:         TimesTenClassic
   Metadata:
     Creation Timestamp:  2021-05-31T15:35:12Z
     Generation:          1
     Resource Version:    20231755
     Self Link: 
   /apis/timesten.oracle.com/v1/namespaces/mynamespace/timestenclassics/sample
     UID:                 517a8646-a354-11ea-a9fb-0a580aed5e4a
   Spec:
     Ttspec:
       Db Config Map:
         sample
       Image:               container-registry.oracle.com/timesten/timesten:22.1.1.19.0
       Image Pull Policy:   Always
       Image Pull Secret:   sekret
       Storage Class Name:  oci-bv
       Storage Size:        250Gi
   Status:
     Active Pods:       None
     High Level State:  Initializing
     Last Event:        3
     Pod Status:
       Cache Status:
         Cache Agent:        Down
         Cache UID Pwd Set:  false
         N Cache Groups:     0
       Db Status:
         Db:            Unknown
         Db Id:         0
         Db Updatable:  Unknown
       Initialized:     true
       Pod Status:
         Agent:                Down
         Last Time Reachable:  0
         Pod IP:
         Pod Phase:            Pending
       Replication Status:
         Last Time Rep State Changed:  0
         Rep Agent:                    Down
         Rep Peer P State:             Unknown
         Rep Scheme:                   Unknown
         Rep State:                    Unknown
       Times Ten Status:
         Daemon:          Down
         Instance:        Unknown
         Release:         Unknown
       Admin User File:   false
       Cache User File:   false
       Cg File:           false
       High Level State:  Down
       Intended State:    Active
       Name:              sample-0
       Schema File:       false
       Cache Status:
         Cache Agent:        Down
         Cache UID Pwd Set:  false
         N Cache Groups:     0
       Db Status:
         Db:            Unknown
         Db Id:         0
         Db Updatable:  Unknown
       Initialized:     true
       Pod Status:
         Agent:                Down
         Last Time Reachable:  0
         Pod IP:
         Pod Phase:            Pending
       Replication Status:
         Last Time Rep State Changed:  0
         Rep Agent:                    Down
         Rep Peer P State:             Unknown
         Rep Scheme:                   Unknown
         Rep State:                    Unknown
       Times Ten Status:
         Daemon:            Down
         Instance:          Unknown
         Release:           Unknown
       Admin User File:     false
       Cache User File:     false
       Cg File:             false
       High Level State:    Unknown
       Intended State:      Standby
       Name:                sample-1
       Schema File:         false
     Rep Create Statement:  create active standby pair "sample" on 
    "sample-0.sample.mynamespace.svc.cluster.local", "sample" on 
    "sample-1.sample.mynamespace.svc.cluster.local" NO RETURN store "sample" on 
    "sample-0.sample.mynamespace.svc.cluster.local" PORT 4444 FAILTHRESHOLD 0 
    store "sample" on "sample-1.sample.mynamespace.svc.cluster.local" PORT 4444 FAILTHRESHOLD  0
     Rep Port:              4444
     Status Version:        1.0
   Events:
     Type  Reason  Age   From       Message
     ----  ------  ----  ----       -------
     -     Create  50s   ttclassic  Secret tt517a8646-a354-11ea-a9fb-0a580aed5e4a created
     -     Create  50s   ttclassic  Service sample created
     -     Create  50s   ttclassic  StatefulSet sample created

3. Use the kubectl get command again to see if value of the STATE field has changed. In this example, the value is Normal, indicating the active standby pair of databases are now provisioned and the process is complete.

   % kubectl get ttc sample
   NAME     STATE    ACTIVE     AGE
   sample   Normal   sample-0   3m5s

4. Use the kubectl describe command again to view the active standby pair provisioning in detail.

   Note: In this example, the now Normal line displays on its own line. In the actual output, this line does not display as its own line, but at the end of the StateChange previous line.

   % kubectl describe ttc sample
   Name:         sample
   Namespace:    mynamespace
   Labels:       <none>
   Annotations:  <none>
   API Version:  timesten.oracle.com/v1
   Kind:         TimesTenClassic
   Metadata:
     Creation Timestamp:  2021-05-31T15:35:12Z
     Generation:          1
     Resource Version:    20232668
     Self Link:
   /apis/timesten.oracle.com/v1/namespaces/mynamespace/timestenclassics/sample 
     UID:                 517a8646-a354-11ea-a9fb-0a580aed5e4a
   Spec:
     Ttspec:
       Db Config Map:
         sample
       Image:               container-registry.oracle.com/timesten/timesten:22.1.1.19.0
       Image Pull Policy:   Always
       Image Pull Secret:   sekret
       Storage Class Name:  oci-bv
       Storage Size:        250Gi
   Status:
     Active Pods:       sample-0
     High Level State:  Normal
     Last Event:        35
     Pod Status:
       Cache Status:
         Cache Agent:        Not Running
         Cache UID Pwd Set:  true
         N Cache Groups:     0
       Db Status:
         Db:            Loaded
         Db Id:         26
         Db Updatable:  Yes
       Initialized:     true
       Pod Status:
         Agent:                Up
         Last Time Reachable:  1590939597
         Pod IP:               192.0.2.1
         Pod Phase:            Running
       Replication Status:
         Last Time Rep State Changed:  0
         Rep Agent:                    Running
         Rep Peer P State:             start
         Rep Scheme:                   Exists
         Rep State:                    ACTIVE
       Times Ten Status:
         Daemon:          Up
         Instance:        Exists
         Release:         22.1.1.19.0
       Admin User File:   true
       Cache User File:   false
       Cg File:           false
       High Level State:  Healthy
       Intended State:    Active
       Name:              sample-0
       Schema File:       true
       Cache Status:
         Cache Agent:        Not Running
         Cache UID Pwd Set:  true
         N Cache Groups:     0
       Db Status:
         Db:            Loaded
         Db Id:         26
         Db Updatable:  No
       Initialized:     true
       Pod Status:
         Agent:                Up
         Last Time Reachable:  1590939597
         Pod IP:               192.0.2.2
         Pod Phase:            Running
       Replication Status:
         Last Time Rep State Changed:  1590939496
         Rep Agent:                    Running
         Rep Peer P State:             start
         Rep Scheme:                   Exists
         Rep State:                    STANDBY
       Times Ten Status:
         Daemon:            Up
         Instance:          Exists
         Release:           22.1.1.19.0
       Admin User File:     true
       Cache User File:     false
       Cg File:             false
       High Level State:    Healthy
       Intended State:      Standby
       Name:                sample-1
       Schema File:         true
     Rep Create Statement:  create active standby pair "sample" on 
   "sample-0.sample.mynamespace.svc.cluster.local", "sample" on 
   "sample-1.sample.mynamespace.svc.cluster.local" NO RETURN store "sample" on 
   "sample-0.sample.mynamespace.svc.cluster.local" PORT 4444 FAILTHRESHOLD 0 
   store "sample" on "sample-1.sample.mynamespace.svc.cluster.local" PORT 4444 FAILTHRESHOLD 0
     Rep Port:              4444
     Status Version:        1.0
   Events:
     Type  Reason       Age    From       Message
     ----  ------       ----   ----       -------
     -     Create       4m43s  ttclassic  Secret tt517a8646-a354-11ea-a9fb-0a580aed5e4a created
     -     Create       4m43s  ttclassic  Service sample created
     -     Create       4m43s  ttclassic  StatefulSet sample created
     -     StateChange  3m47s  ttclassic  Pod sample-0 Daemon Unknown
     -     StateChange  3m47s  ttclassic  Pod sample-0 CacheAgent Unknown
     -     StateChange  3m47s  ttclassic  Pod sample-0 RepAgent Unknown
     -     StateChange  3m47s  ttclassic  Pod sample-1 Daemon Unknown
     -     StateChange  3m47s  ttclassic  Pod sample-1 CacheAgent Unknown
     -     StateChange  3m47s  ttclassic  Pod sample-1 RepAgent Unknown
     -     StateChange  3m26s  ttclassic  Pod sample-0 Agent Up
     -     StateChange  3m26s  ttclassic  Pod sample-0 Release 22.1.1.19.0
     -     StateChange  3m26s  ttclassic  Pod sample-0 Daemon Down
     -     StateChange  3m26s  ttclassic  Pod sample-1 Agent Up
     -     StateChange  3m26s  ttclassic  Pod sample-1 Release 22.1.1.19.0
     -     StateChange  3m26s  ttclassic  Pod sample-1 Daemon Down
     -     StateChange  3m26s  ttclassic  Pod sample-0 Daemon Up
     -     StateChange  3m25s  ttclassic  Pod sample-1 Daemon Up
     -     StateChange  2m13s  ttclassic  Pod sample-0 RepState IDLE
     -     StateChange  2m13s  ttclassic  Pod sample-0 Database Updatable
     -     StateChange  2m13s  ttclassic  Pod sample-0 CacheAgent Not Running
     -     StateChange  2m13s  ttclassic  Pod sample-0 RepAgent Not Running
     -     StateChange  2m13s  ttclassic  Pod sample-0 RepScheme None
     -     StateChange  2m13s  ttclassic  Pod sample-0 Database Loaded
     -     StateChange  2m11s  ttclassic  Pod sample-0 RepAgent Running
     -     StateChange  2m10s  ttclassic  Pod sample-0 RepScheme Exists
     -     StateChange  2m10s  ttclassic  Pod sample-0 RepState ACTIVE
     -     StateChange  113s   ttclassic  Pod sample-1 Database Loaded
     -     StateChange  113s   ttclassic  Pod sample-1 Database Not Updatable
     -     StateChange  113s   ttclassic  Pod sample-1 CacheAgent Not Running
     -     StateChange  113s   ttclassic  Pod sample-1 RepAgent Not Running
     -     StateChange  113s   ttclassic  Pod sample-1 RepScheme Exists
     -     StateChange  113s   ttclassic  Pod sample-1 RepState IDLE
     -     StateChange  106s   ttclassic  Pod sample-1 RepAgent Running
     -     StateChange  101s   ttclassic  Pod sample-1 RepState STANDBY
     -     StateChange  101s   ttclassic  TimesTenClassic was Initializing, now Normal

Your active standby pair of TimesTen databases are successfully deployed (as indicated by Normal.) There are two TimesTen databases, configured as an active standby pair. One database is active. (In this example, sample-0 is the active database, as indicated by Rep State ACTIVE). The other database is standby. (In this example, sample-1 is the standby database as indicated by Rep State STANDBY). The active database can be modified and queried. Changes made on the active database are replicated to the standby database. If the active database fails, the Operator automatically promotes the standby database to be the active. The formerly active database will be repaired or replaced, and will then become the standby.