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Posted to user@storm.apache.org by Kanagha <er...@gmail.com> on 2016/06/05 01:32:51 UTC

Reg saving states in apache storm

Hi,

I have been reading about IStatefulBolt. It is mentioned that
topology.state.provider
can be configured either as in-memory or
org.apache.storm.redis.state.RedisKeyValueStateProvider.

If redis runs out of memory,  how does apache storm take care of saving
state? Does it flush old states periodically?


Thanks
Kanagha