bugGluster - Bugs: bug #21917, Self-heal on striped volumes

 
 

bug #21917: Self-heal on striped volumes

Submitted by:  Gareth Bult <garethbult>
Submitted on:  Mon 31 Dec 2007 11:43:10 AM UTC  
 
Category: GlusterFSSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Improper behaviour
Status: DuplicatePrivacy: Public
Assigned to: Krishna Srinivas <krishnasrinivas>Originator Name: 
Open/Closed: ClosedRelease: 
Operating System: GNU/LinuxReproducibility: None

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Fri 06 Jun 2008 10:55:19 PM UTC, comment #1:

If the self-heal on sparse files is solved, this will be handled. Closing the bug as duplicate.

Bug ID #21916 will be used as the bug.

Amar Tumballi <amarts>
Project Member
Mon 31 Dec 2007 11:43:10 AM UTC, original submission:

It appears that a stripe on top of an afr on top of volumes does not function "correctly" in that on self-heal, it will re-copy all stripes, even though one stripe is out of date. (more details on the mailing list)

Essentially;

VOLUME A
+ AFR (x10) + STRIPE + IOCACHE
VOLUME B

If I store a file on IOCACHE, it distributes across the 10 stripes as you would expect. If I kill a server, append 1 byte, then restart a server, all stripes are copied (completely)

This also activates the "sparse" bug (previous ticket) and instead of simply copying the stript (i.e. sparse file) it makes a real/complete copy of each stripe.

Hence the filesystem in this instance grows in size by a factor of 10.

Gareth Bult <garethbult>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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  • -unavailable- added by amarts (Posted a comment)
  • -unavailable- added by avati (Updated the item)
  • -unavailable- added by garethbult (Submitted the item)
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    Follow 4 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri 06 Jun 2008 10:55:19 PM UTCamartsStatusNone=>Duplicate
      Open/ClosedOpen=>Closed
    Tue 01 Jan 2008 07:18:57 PM UTCavatiCategoryGluster Core=>GlusterFS
      Assigned toNone=>krishnasrinivas

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