bugGluster - Bugs: bug #19253, ALU min-free-disk continues to...

 
 

bug #19253: ALU min-free-disk continues to create files

Submitted by:  A. D Auria <adauria>
Submitted on:  Fri 09 Mar 2007 11:13:44 AM UTC  
 
Category: GlusterFSSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Improper behaviour
Status: FixedPrivacy: Public
Assigned to: Amar Tumballi <amarts>Originator Name: 
Open/Closed: ClosedRelease: 
Operating System: GNU/LinuxReproducibility: None

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Fri 09 Mar 2007 11:45:37 AM UTC, comment #1:

forgot to add version info:
1.3.0-pre2.2
Fuse 2.6.3
gentoo kernel v2.6.20

A. D Auria <adauria>
Fri 09 Mar 2007 11:13:44 AM UTC, original submission:

[Client configuration....]
volume bricks
type cluster/unify
subvolumes oss1c oss2c oss3c oss4c
option scheduler alu
option alu.limits.min-free-disk 60GB
option alu.limits.max-open-files 10000
option alu.order disk-usage:read-usage:write-usage:open-files-usage:disk-speed-usage
option alu.disk-usage.entry-threshold 2GB
option alu.disk-usage.exit-threshold 60MB
option alu.open-files-usage.entry-threshold 1024
option alu.open-files-usage.exit-threshold 32
option alu.stat-refresh.interval 10sec
end-volume

On a 4 brick system...
oss1c 2.3T 2.3T 4.6G 100%
oss2c 2.8T 2.6T 220G 93%
oss3c 3.7T 2.6T 1.2T 70%
oss4c 2.8T 2.6T 220G 93%

[Observation....]
When writing to the unified cluster, although creates to oss1c, the smallest brick, did slow down, they did not stop. Our testing ceased when there was less than 5GB free space left on oss1c. This was well beyond the 60GB minimum that was set in the options.

The characteristics of the files being created are:
- new directory created every 10 minutes
- old files closed in old directory
- new file(s) created when new directory is created
- no individual file exceeds 1GB in size (when 1GB limit reached, a new file is created)

Thus, no file is remaining open or being extended in such a way as to grow this far beyond the 60GB limit.

A. D Auria <adauria>

 

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  • -unavailable- added by avati (Updated the item)
  • -unavailable- added by adauria (Submitted the item)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 06 May 2007 10:31:40 AM UTCavatiStatusNone=>Fixed
      Assigned toNone=>amarts
      Open/ClosedOpen=>Closed

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