Kubectl Logs : Tail : Follow

kubectl logs vea-cc -n amex-poc --tail=20 nginx

kubectl logs vea-cc -n amex-poc --follow

kubectl : Edit Deployment and Delete Deployment

kubectl get deployments-n amex-poc

kubectl edit deployment eaas

=================

kubectl delete deployment eaas

Mongo : Kubectl replace Selector and Label - Service : Install ps : Vim Jump to 1st Line : Vim Search : JVM Info in Linux

mongorestore -d IDS_Extraction_Application_Form -c DataPrepConfig collections/DataPrepConfig.bson

mongorestore -d IDS_Extraction_Application_Form -c ExperimentConfig collections/ExperimentConfig.bson

mongorestore -d IDS_Extraction_Application_Form -c ExperimentModel collections/ExperimentModel.bson

mongorestore -d IDS_Extraction_Application_Form -c Project collections/Project.bson

mongorestore -d IDS_Extraction_Application_Form -c Tag collections/Tag.bson

mongorestore -d IDS_Extraction_Application_Form -c TagGroup collections/TagGroup.bson

mongorestore -d IDS_Extraction_Application_Form -c TemplateStructureConfig collections/TemplateStructureConfig.bson

mongorestore -d IDS_Extraction_Application_Form -c hibernate_sequences collections/hibernate_sequences.bson

- apiVersion: v1

  kind: Service

  metadata:

    labels:

      io.qa.service: ids-page-classification-runtime

    name: ids-page-classification-runtime

    namespace: amex-poc

  spec:

    ports:

    - port: 8096

      targetPort: 8096

      protocol: TCP

    selector:

      io.qa.service: ids-page-classification-runtime

    type: ClusterIP

kubectl cp mongodb-2:/tmp/10Aug2021/  .  -n fda

kubectl cp collections mongodb-0:/tmp/

kubectl cp pdf vea-cc-5c6d5fd4dd-nrp9w:/tmp

kubectl cp  vea-cc-6b8469fd57-m99g7:/tmp/Dump  .  -n cs

npm install

npm run build_dev

https://stackoverflow.com/questions/26982274/ps-command-doesnt-work-in-docker-container

apt-get update && apt-get install -y procps

stackoverflow.com/questions/5317152/getting-the-parameters-of-a-running-jvm/17400304#17400304

jinfo -flags <vmid> 

jinfo -sysprops <vmid>

ENTRYPOINT java -Xms4884M -Xmx6144M -XX:+HeapDumpOnOutOfMemoryError -jar -Dserver.port=8081 target/vea-command-center.jar --spring.config.location=/usr/bin/vea/vea-command-center/src/main/resources/application.yml

ENTRYPOINT java -jar -Dserver.port=8081 target/vea-command-center.jar --spring.config.location=/usr/bin/vea/vea-command-center/src/main/resources/application.yml

https://akobor.me/posts/heap-size-and-resource-limits-in-kubernetes-for-jvm-applications

2021-12-08 05:54:12 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-1.mongodb:27017] INFO  - Server mongodb-1.mongodb:27017 does not appear to be a member of an initiated replica set.

2021-12-08 05:54:12 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-2.mongodb:27017] INFO  - Server mongodb-2.mongodb:27017 does not appear to be a member of an initiated replica set.

2021-12-08 05:54:20 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Server mongodb-0.mongodb:27017 does not appear to be a member of an initiated replica set.

2021-12-08 05:54:22 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-1.mongodb:27017] INFO  - Server mongodb-1.mongodb:27017 does not appear to be a member of an initiated replica set.

2021-12-08 05:54:22 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-2.mongodb:27017] INFO  - Server mongodb-2.mongodb:27017 does not appear to be a member of an initiated replica set.

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Monitor thread successfully connected to server with description ServerDescription{address=mongodb-0.mongodb:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 0, 27]}, minWireVersion=0, maxWireVersion=7, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=699137, setName='rs0', canonicalAddress=mongodb-0:27017, hosts=[mongodb-0:27017], passives=[], arbiters=[], primary='mongodb-0:27017', tagSet=TagSet{[]}, electionId=7fffffff0000000000000001, setVersion=1, lastWriteDate=Wed Dec 08 05:54:27 UTC 2021, lastUpdateTimeNanos=9982679452786567}

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Adding discovered server mongodb-0:27017 to client view of cluster

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Server mongodb-0.mongodb:27017 is no longer a member of the replica set.  Removing from client view of cluster.

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Closed connection [connectionId{localValue:4, serverValue:206862320}] to mongodb-0.mongodb:27017 because there was a socket exception raised on another connection from this pool.

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Server mongodb-1.mongodb:27017 is no longer a member of the replica set.  Removing from client view of cluster.

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Server mongodb-2.mongodb:27017 is no longer a member of the replica set.  Removing from client view of cluster.

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0.mongodb:27017] INFO  - Canonical address mongodb-0:27017 does not match server address.  Removing mongodb-0.mongodb:27017 from client view of cluster

2021-12-08 05:54:30 [cluster-ClusterId{value='61aee955e1ffbc66232fb4f3', description='null'}-mongodb-0:27017] INFO  - Exception in monitor thread while connecting to server mongodb-0:27017

https://stackoverflow.com/questions/50259015/connection-refused-to-kubernetes-service

Connection Refused to Kubernetes Service

You should map the service to the right ports.

https://linuxize.com/post/vim-search/

Press /.

Type the search pattern.

Press Enter to perform the search.

Press n to find the next occurrence or N to find the previous occurrence.

https://cyberciti.biz/faq/howto-unix-linux-vi-vim-jump-to-end-of-file/

1G

npm : Script : npm run build_dev

 npm install 

npm run  build_dev          

Kubenetes : Labels -l

 kubectl get pods -l app=rabbitmq -n cs

kubectl get pod -w -l app=rabbitmq -n cs

kubectl delete pod -l app=rabbitmq -n cs

RUN, CMD, ENTRYPOINT - DockerFile

https://www.baeldung.com/ops/dockerfile-run-cmd-entrypoint

JVM Options - inside docker kubernetes

https://developers.redhat.com/blog/2017/03/14/java-inside-docker

https://fabiokung.com/2014/03/13/memory-inside-linux-containers/