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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/02/10 15:35:00 UTC
[jira] [Assigned] (SPARK-38178) Correct the logic to measure the memory usage of RocksDB
[ https://issues.apache.org/jira/browse/SPARK-38178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-38178:
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Assignee: (was: Apache Spark)
> Correct the logic to measure the memory usage of RocksDB
> --------------------------------------------------------
>
> Key: SPARK-38178
> URL: https://issues.apache.org/jira/browse/SPARK-38178
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 3.2.1
> Reporter: Yun Tang
> Priority: Major
>
> Currently, structed streaming would report the memory usage of RocksDB as state store's metrics. However, it only sums from {{rocksdb.estimate-table-readers-mem}} and {{rocksdb.size-all-mem-tables}}. However, this lacks of the memory usage of block cache. (You can refer to [Memory-usage-in-RocksDB](https://github.com/facebook/rocksdb/wiki/Memory-usage-in-RocksDB) for more details.)
> BTW, as the "block-cache-pinned-usage" is included in "block-cache-usage", we don't need to include the pinned usage.
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