Hector Sandoval Chaverri created HDFS-17148:
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Summary: RBF: SQLDelegationTokenSecretManager must cleanup expired
tokens in SQL
Key: HDFS-17148
URL: https://issues.apache.org/jira/browse/HDFS-17148
Project: Hadoop HDFS
Issue Type: Improvement
Components: rbf
Reporter: Hector Sandoval Chaverri
The SQLDelegationTokenSecretManager fetches tokens from SQL and stores them
temporarily in a memory cache with a short TTL. The ExpiredTokenRemover in
AbstractDelegationTokenSecretManager runs periodically to cleanup any expired
tokens from the cache, but most tokens have been evicted automatically per the
TTL configuration. This leads to many expired tokens in the SQL database that
should be cleaned up.
The SQLDelegationTokenSecretManager should find expired tokens in SQL instead
of in the memory cache when running the periodic cleanup.
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