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From "Stefan Richter (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-6545) Make incremental checkpoints externalizable
Date Thu, 11 May 2017 14:08:04 GMT
Stefan Richter created FLINK-6545:
-------------------------------------

             Summary: Make incremental checkpoints externalizable
                 Key: FLINK-6545
                 URL: https://issues.apache.org/jira/browse/FLINK-6545
             Project: Flink
          Issue Type: Sub-task
          Components: State Backends, Checkpointing
    Affects Versions: 1.3.0
            Reporter: Stefan Richter
            Priority: Blocker
             Fix For: 1.3.0


Incremental checkpoints are currently not externalizible. The missing piece is familiarizing
the {{SavepointSerializer}}(s) with the new state handles classes that we added for incremental
checkpointing. Currently, some of those (e.g. {{org.apache.flink.contrib.streaming.state.RocksDBIncrementalKeyedStateHandle}})
currently live in the contrib.rocksdb package and need to be migrated. We can also push them
to a different abstraction level, i.e. {{IncrementalKeyedStateHandle}} with some private data,
referenced existing shared data (from previous checkpoints), and (presumably) newly created
shared data (first created by the current checkpoint).



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