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  1. Spark
  2. SPARK-43311

RocksDB state store provider memory management enhancements

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.4.0
    • 3.5.0
    • Structured Streaming
    • None

    Description

      Today when RocksDB is used as a State Store provider, memory usage when writing using writeBatch is not capped. Also, a related issue is that the state store coordinator can create multiple RocksDB instances on a single node without enforcing a global limit on native memory usage. Due to these issues we could run into OOM issues and task failures. 
       
      We are looking to improve this behavior by doing a series of improvements such as:

      • remove writeBatch and use native RocksDB operations
      • use writeBufferManager to manage global limit for all instances on a single node and accounting memtable¬†+ filter/index blocks usage as part of block cacheWith these changes we will be avoiding OOM issues around RocksDB native memory usage.

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            anishshri-db Anish Shrigondekar
            anishshri-db Anish Shrigondekar
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              Created:
              Updated:
              Resolved: