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Posted to issues@bookkeeper.apache.org by GitBox <gi...@apache.org> on 2019/02/15 22:28:54 UTC

[GitHub] rdhabalia opened a new pull request #1949: [bookie-gc] add option for persistent entry-log metadata

rdhabalia opened a new pull request #1949: [bookie-gc] add option for persistent entry-log metadata
URL: https://github.com/apache/bookkeeper/pull/1949
 
 
   ### Motivation
   
   It addresses #1938, where it provides interface for `entyLogMetadataMap` so, `entrylogMetadata` can be stored into RocksDB instead main-memory.
   
   ### Modification
   - introduced persistent RocksDB entryLogMetadataMap to store entry-log metadata.
   - it can fallback to in-memory implementation using  `gcPersistentEntrylogMetadataMapEnabled` flag and that can be removed in future release and keep only rocksDB implementation in future.
   
   ### Result
   - It will help to avoid storing entryLogMetadata into main-memory.
   
   cc @merlimat 

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