hchaverri opened a new pull request, #5963:
URL: https://github.com/apache/hadoop/pull/5963
…che so tokens are updated frequently.
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### Description of PR
JIRA: [HDFS-17128](https://issues.apache.org/jira/browse/HDFS-17128).
Updating SQLDelegationTokenSecretManager to use LoadingCache so tokens are
updated frequently.
The SQLDelegationTokenSecretManager is used by RBF to store a higher volume
of tokens than supported by Zookeeper. Currently, the default in-memory Map is
used to store tokens on each router and its contents are not refreshed
periodically. These changes will allow routers to update the status of tokens
in memory after a short period of time, such that renewals or cancellations
handled by any router are reflected on all of them.
### How was this patch tested?
Added unit tests for renewal and cancellations, validating that changes are
propagated to other SecretManagers.
### For code changes:
- [Y] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [Y] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [Y] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [Y] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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