Bug 1028023 - Buffer defrag not working
Summary: Buffer defrag not working
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: JBoss Data Virtualization 6
Classification: JBoss
Component: Teiid
Version: 6.0.0
Hardware: Unspecified
OS: Unspecified
unspecified
urgent
Target Milestone: ER4
: 6.0
Assignee: Van Halbert
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-11-07 13:56 UTC by Van Halbert
Modified: 2014-07-09 05:02 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
The buffer defrag task is not working as expected because the header values are written by an object output stream, not as standalone values into the block data.
Clone Of:
Environment:
Last Closed: 2014-03-10 19:56:16 UTC
Type: Bug
Embargoed:


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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker TEIID-2714 0 Major Closed Buffer defrag not working 2014-04-21 11:25:23 UTC

Comment 1 JBoss JIRA Server 2013-11-07 18:15:14 UTC
Steven Hawkins <shawkins> made a comment on jira TEIID-2714

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).

Comment 2 belong 2013-12-10 00:51:58 UTC
Assuming this will be set to VERIFIED before GA - setting requires_doc_text- accordingly.

Comment 3 wgibson 2014-02-11 17:51:12 UTC
Covered by unit tests:  TestBufferFrontedFileStoreCache.java, TestFileStorageManager.java, and TestEnginePerformance.java.

Comment 4 JBoss JIRA Server 2014-04-21 11:25:29 UTC
Steven Hawkins <shawkins> updated the status of jira TEIID-2714 to Closed


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