bugGluster - Bugs: bug #17353, location hint to be integrated to...

 
 

bug #17353: location hint to be integrated to unify

Submitted by:  Anand Avati <avati>
Submitted on:  Mon 07 Aug 2006 12:08:27 PM UTC  
 
Category: GlusterFSSeverity: 5 - Blocker
Priority: 5 - NormalItem Group: Redesign
Status: InvalidPrivacy: Public
Assigned to: Anand Avati <avati>Originator Name: 
Open/Closed: ClosedRelease: 
Operating System: GNU/LinuxReproducibility: None

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Fri 11 Aug 2006 08:34:52 PM UTC, comment #1:

``dircache'' renamed to ``location hints'', module committed.

Vikas Gorur <vikasgp>
Project Member
Mon 07 Aug 2006 12:08:27 PM UTC, original submission:

a library for storing dir entries using two dimensional data strucutre, hash table in one dimension fo'yr operations and a linked list in another dimension for maintainence (allocation/free/ageing) is needed to implement xlators like unionfs, ALU, Raid-0.

the library gives a lookup (via hash table) from filename to file-layout (pointer to which child xlator has the file). Every lookup on an entry makes the entry 'younger'. Entries are pre-allocated and 'oldest' entry is salvaged for new entry request.

cache coherancy can be easily handled by invalidating the cached entry when a cache-miss is encountered and rebuilding the entry.

implementing a simple geneirc hash table api into libglusterfs is needed as part of implementing the dircache

Anand Avati <avati>
Project MemberIn charge of this item.

 

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  • -unavailable- added by avati (Updated the item)
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    Follow 9 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 06 May 2007 10:48:54 AM UTCavatiStatusNone=>Invalid
      Open/ClosedOpen=>Closed
    Thu 14 Sep 2006 01:47:33 PM UTCavatiOpen/ClosedClosed=>Open
    Thu 14 Sep 2006 01:46:58 PM UTCavatiAssigned tovikasgp=>avati
      Summaryfast-dircache for quick lookups=>location hint to be integrated to unify
    Fri 08 Sep 2006 11:10:01 AM UTCvikasgpOpen/ClosedOpen=>Closed
    Mon 07 Aug 2006 12:41:22 PM UTCavatiDependencies-=>bugs #17283 is dependent
    Mon 07 Aug 2006 12:40:51 PM UTCavatiDependencies-=>bugs #17309 is dependent
    Mon 07 Aug 2006 12:38:56 PM UTCavatiDependencies-=>bugs #17301 is dependent

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