Brian Ghigiarelli created NIFI-4987:
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Summary: Support TTL in Redis
Key: NIFI-4987
URL: https://issues.apache.org/jira/browse/NIFI-4987
Project: Apache NiFi
Issue Type: Improvement
Reporter: Brian Ghigiarelli
To properly integrate the NiFi with Redis, it would be nice to support setting
TTLs for keys, whether a global TTL is used for the particular Redis database,
or a configurable TTL is used for each key. At the moment, the
`PutDistributedMapCache` processor that uses the
`RedisDistributedMapCacheClientService` and calls to the
`RedisConnectionPoolService` does not pass in any TTL / EXPIRE parameter, so
Redis will cache the value potentially forever unless Redis itself clears the
key based on its configured maxmemory eviction strategy.
On
[SO|https://stackoverflow.com/questions/49321005/setting-ttl-on-redis-with-apache-nifi-putdistributedmapcache/49324205#49324205],
[~bbende] suggested either a `PutRedis` processor or a modification to the
`RedisDistributedMapCacheClientService`.
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