Jonathan Ellis created CASSANDRA-5661:
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Summary: Discard pooled readers for cold data
Key: CASSANDRA-5661
URL: https://issues.apache.org/jira/browse/CASSANDRA-5661
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.2.1
Reporter: Jonathan Ellis
Assignee: Pavel Yaskevich
Fix For: 1.2.6
Reader pooling was introduced in CASSANDRA-4942 but pooled RandomAccessReaders
are never cleaned up until the SSTableReader is closed. So memory use is "the
worst case simultaneous RAR we had open for this file, forever."
We should introduce a global limit on how much memory to use for RAR, and evict
old ones.
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