[GitHub] [pulsar] aloyszhang opened a new issue #14654: Support delete schema forcefully

[GitBox <gi...@apache.org>]

aloyszhang opened a new issue #14654:
URL: https://github.com/apache/pulsar/issues/14654


   **Is your enhancement request related to a problem? Please describe.**
   Currently, pulsar admin command for schemas can't delete a schema completely， it only appends a deleted `schemaInfo` to mark this schema as deleted. Internal, when deleting a schema, pulsar will first read the existing schemas append the deleted `schemaInfo`
   
   This design may have some problems: 
   
   1. Schema has a  `SchemaLocator` in metastore that contains the ledgerId which we save the `SchemaInfo` in. If all the replica of the schema ledger is lost or broken, the schema can neither be recovered nor be deleted, leading to the clients(producers and consumers) failing.
   
   2. Delete a topic without deleting schema, even we delete the schema after, there will be a useless `SchemaLocator` in metastore and a ledger in BookKeeper left.
   3. Delete a schema for a topic(even the topic does not exist) will lefter a useless `SchemaLocator` in metastore and a ledger in BookKeeper 
   
   **Describe the solution you'd like**
   We should support delete schema forcefully to make sure the `SchemaLocator` in metastore and ledger in BookKeeper can be cleaned completely.
   
   **Describe alternatives you've considered**
   None
   
   **Additional context**
   No
   
   


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[GitHub] [pulsar] aloyszhang closed issue #14654: Support delete schema forcefully

[GitBox <gi...@apache.org>]

aloyszhang closed issue #14654:
URL: https://github.com/apache/pulsar/issues/14654


   


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