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From StefanRRichter <...@git.apache.org>
Subject [GitHub] flink pull request #3801: [FLINK-6364] [checkpoints] Implement incremental c...
Date Tue, 02 May 2017 17:32:58 GMT
Github user StefanRRichter commented on a diff in the pull request:

    --- Diff: flink-contrib/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBKeyedStateBackend.java
    @@ -137,6 +156,14 @@
     	/** Number of bytes required to prefix the key groups. */
     	private final int keyGroupPrefixBytes;
    +	/** The sst files materialized in pending checkpoints */
    +	private final SortedMap<Long, Map<String, StreamStateHandle>> materializedSstFiles
= new TreeMap<>();
    +	/** The identifier of the last completed checkpoint */
    +	private final long lastCompletedCheckpointId = -1;
    --- End diff --
    Currently, this value `lastCompletedCheckpointId` is not maintained at all, and also the
`materializedSstFiles` is ever-growing. I think the whole feedback from the checkpoint coordinator
about completed checkpoints is still missing. Are you planning to do this in another PR?

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