Optional recovery of expired and checkpointed PEs.
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Key: S4-42
URL: https://issues.apache.org/jira/browse/S4-42
Project: Apache S4
Issue Type: New Feature
Affects Versions: 0.4
Reporter: Matthieu Morel
Fix For: 0.4
S4 provides a caching mechanism for PEs, and PEs can be assigned a time to
live. After that time, the PE instance is removed from the cache and may be
garbage collected.
When combining with the checkpointing mechanism, expired but checkpointed PEs
are restored from a former checkpoint.
This may or may not be desired, depending on the use case. Therefore we must
provide an option to restore - or not - the state of an expired but
checkpointed PE.
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