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https://issues.jboss.org/browse/TEIID-2714?page=com.atlassian.jira.plugin...
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Steven Hawkins commented on TEIID-2714:
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added org.teiid.compactBufferFiles system property to the admin guide to keep more compact
buffer file, defaults to false. This could be tweaked further as the defrag/truncate
cycle is initiated after 2^14 block removals. Given that a typical allocation is around
64k this should reclaim space after a turn over of several hundred megs to a gig (note
that we'll be somewhat compact already since we assign blocks from the start of the
files).
Buffer defrag not working
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Key: TEIID-2714
URL:
https://issues.jboss.org/browse/TEIID-2714
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 7.7
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 8.6, 7.7.9
The defrag task is not working as expected because the header values are written by an
object output stream - and not as standalone values into the block data.
For most data usage patterns this isn't an issue as the storage files are self
compacting over time due to low block assignments.
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