| --- |
| id: functions-deploy-cluster-package |
| title: Enable package management service |
| sidebar_label: "Enable package management service" |
| --- |
| |
| [Package management service](admin-api-packages.md) enables both version management and simplified upgrade/rollback processes for functions, sinks, and sources. When using the same function, sink, and source in different namespaces, you can upload them to a common package management system. |
| |
| With the package management service enabled, you can [upload your function package](pathname:///reference/#/@pulsar:version_reference@/pulsar-admin/functions?id=upload) to the service and get the package URL. Thus you can create the function by setting `--jar`, `--py`, or `--go` to the package URL. |
| |
| By default, the package management service is disabled. To enable it in your cluster, set the properties in the `conf/broker.conf` file as follows. |
| |
| ```properties |
| enablePackagesManagement=true |
| packagesManagementStorageProvider=org.apache.pulsar.packages.management.storage.bookkeeper.BookKeeperPackagesStorageProvider |
| packagesReplicas=1 |
| packagesManagementLedgerRootPath=/ledgers |
| ``` |
| |
| :::tip |
| |
| To ensure high availability in a production deployment (a cluster with multiple brokers), set `packagesReplicas` to equal the number of bookies. The default value `1` is only for one-node cluster deployment. |
| |
| ::: |
