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  1. Cassandra
  2. CASSANDRA-15531

Improve docs on disk_access_mode, specifically post CASSANDRA-8464

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       Background

      tsteinmaurer brought up on Slack that they've been hit by the `oom-killer` as a result of SSTables being mmaped.

      Action

      Based on feedback from Thomas Steinmaurer, Jean Carlo & Sam Kearon, I am going to push the info I've written in this KB article to the official docs – Increased memory use on nodes after upgrading to DSE 5.0 or DSE 5.1.

      I will revise it specifically for affected OSS versions.

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              erickramirezau Erick Ramirez
              flightc Erick Ramirez (deprecated)
              Erick Ramirez
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