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Pulsar Backup

This project backups Apache Pulsar instance. It has two modes dump or restore.

Dump

This mode dumps data of selected namespaces into a folder. Dump creates folder for every tenant and namespace and in namespace folder it creates file for every topic. One line in topic backup file is single message. Backup contains key, event time, sequence ID, value of a message. Those are delimited by |.

Parameters:

  • PULSAR_CLIENT_URL - url for Apache Pulsar connection default pulsar://localhost:6650
  • PULSAR_ADMIN_URL - admin url to Apache Pulsar default http://localhost:8080
  • BACKUP_OUTPUT - path to an empty folder to dump data from pulsar
  • BACKUP_NAMESPACES - comma separated list of namespace to be dumped e.g. default/customer,default/catalog
  • BACKUP_FORCE - replace files in output folder default false

Run command

docker run --name pulsar-backup --rm -e JAVA_ARGS=dump -e PULSAR_CLIENT_URL=pulsar://pulsar-broker:6650 -e PULSAR_ADMIN_URL=http://pulsar-broker:8080 -e BACKUP_OUTPUT=/pulsar-backup -e BACKUP_NAMESPACES=default/customer,default/catalog ghcr.io/osomahe/pulsar-backup:0.2.0

Restore

This mode restores dump data back into Apache Pulsar instance.

Parameters:

  • PULSAR_CLIENT_URL - url for Apache Pulsar connection default pulsar://localhost:6650
  • PULSAR_ADMIN_URL - admin url to Apache Pulsar default http://localhost:8080
  • BACKUP_INPUT - path to a folder with dumped data
  • BACKUP_FORCE - insert data into topic even if there is already some data default false

Run command

docker run --name pulsar-backup --rm -e JAVA_ARGS=restore -e PULSAR_CLIENT_URL=pulsar://pulsar-broker:6650 -e PULSAR_ADMIN_URL=http://pulsar-broker:8080 -e BACKUP_INPUT=/pulsar-backup ghcr.io/osomahe/pulsar-backup:0.2.0