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From "Benedict (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-8707) Move SegmentedFile, IndexSummary and BloomFilter to utilising RefCounted
Date Mon, 09 Feb 2015 18:48:36 GMT


Benedict commented on CASSANDRA-8707:

I've pushed an update with a single mega comment at the head of sstablereader. I'm still not
100% sure I've either nailed all of the stuff that should be covered, or that it's clear,
so please do criticise and point out places it could be improved. Obviously it will also get
tweaks in all of the upcoming patches that modify its behaviour.

I took the liberty of backporting the new OpenReason MOVED_START since it helps with the docs
as well.

> Move SegmentedFile, IndexSummary and BloomFilter to utilising RefCounted
> ------------------------------------------------------------------------
>                 Key: CASSANDRA-8707
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Assignee: Benedict
>            Priority: Critical
>             Fix For: 2.1.3
> There are still a few bugs with resource management, especially around SSTableReader
cleanup, esp. when intermixing with compaction. This migration should help. We can simultaneously
"simplify" the logic in SSTableReader to not track the replacement chain, only to take a new
reference to each of the underlying resources.

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