glusterfs-afrv1.git/xlators/cluster/afr/src/afr-self-heal-algorithm.h, branch v3.2.0qa8

Copyright changes

2010-10-11T14:31:12+00:00

Signed-off-by: Vijay Bellur 
Signed-off-by: Vijay Bellur 

BUG: 971 (dynamic volume management)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971

Change GNU GPL to GNU AGPL

2010-10-04T14:50:05+00:00

Signed-off-by: Pranith Kumar K 
Signed-off-by: Vijay Bellur 

BUG: 1388 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388

cluster/afr: Allocate diff algorithm loop_state structures only once.

2009-12-28T12:39:24+00:00

Instead of CALLOC'ing a loop_state structure at the beginning
of every loop, keep a table of allocated structures and reuse
them.

Signed-off-by: Vikas Gorur 
Signed-off-by: Anand V. Avati 

BUG: 320 (Improve self-heal performance)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320

cluster/afr: Report number of blocks healed during diff self-heal.

2009-12-28T12:39:20+00:00

Signed-off-by: Vikas Gorur 
Signed-off-by: Anand V. Avati 

BUG: 320 (Improve self-heal performance)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320

fixes to compile on MacOSX (no fuse client)

2009-12-02T03:48:41+00:00

These changes are required to make GlusterFS compile on MacOSX (10.5).

Currently glusterfs server component alone will work over Mac, and it has
to be built with following options to ./configure.

 "bash$ ./configure --disable-fuse-client --disable-fusermount "

Signed-off-by: Amar Tumballi 
Signed-off-by: Anand V. Avati 

BUG: 361 (GlusterFS 3.0 should work on Mac OS/X)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=361

cluster/afr: Pipeline the "diff" data self-heal read-write loop.

2009-10-23T15:29:25+00:00

Start upto "data-self-heal-window-size" instances of the read-write loop
of the "diff" data self-heal algorithm simultaneously.

Signed-off-by: Anand V. Avati 

BUG: 320 (Improve self-heal performance)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320

cluster/afr: Pipeline the "full" data self-heal read-write loop.

2009-10-23T14:03:12+00:00

Start upto "data-self-heal-window-size" instances of the read-write loop
of the "full" data self-heal algorithm simultaneously.

Add a new option "data-self-heal-window-size" with range [1-1024],
and a default value of 16.

Signed-off-by: Anand V. Avati 

BUG: 320 (Improve self-heal performance)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=320

Changed occurrences of Z Research to Gluster.

2009-10-07T10:54:49+00:00

Signed-off-by: Anand V. Avati

cluster/afr: Add new option "data-self-heal-algorithm"

2009-09-22T13:13:34+00:00

option: data-self-heal-algorithm type: string default: "full"

This option allows the user to specify the algorithm to
be used for data self-heal. Currently supported values
are "full" and "diff".

Signed-off-by: Anand V. Avati

cluster/afr: Add the "diff" self-heal algorithm.

2009-09-22T13:13:34+00:00

The "diff" self-heal algorithm works as follows:

  For each block:
    Compute MD5 checksum on source and all sinks
    If checksum on a sink differs from source:
      Read block from source and write to sinks

Signed-off-by: Anand V. Avati