glusterfs.git/xlators/cluster/ec/src/Makefile.am, branch v3.7.14

ec: Porting messages to new logging framework

2015-06-27T09:19:38+00:00

This is a backport of http://review.gluster.org/#/c/10465/

cherry-picked from commit b0b9eaea9dbb4e9a535f5e969defc4556a9e2204
>Change-Id: Ia05ae750a245a37d48978e5f37b52f4fb0507a8c
>BUG: 1194640
>Signed-off-by: Nandaja Varma 

Change-Id: Ia05ae750a245a37d48978e5f37b52f4fb0507a8c
BUG: 1217722
Signed-off-by: Nandaja Varma 
Reviewed-on: http://review.gluster.org/11429
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System 
Reviewed-by: Pranith Kumar Karampuri

cluster/ec: Add self-heal-daemon command handlers

2015-03-09T22:36:31+00:00

This patch introduces the changes required in ec xlator to handle
index/full heal.

Index healer threads:
Ec xlator start an index healer thread per local brick. This thread keeps
waking up every minute to check if there are any files to be healed based on
the indices kept in index directory. Whenever child_up event comes, then also
this index healer thread wakes up and crawls the indices and triggers heal.
When self-heal-daemon is disabled on this particular volume then the healer
thread keeps waiting until it is enabled again to perform heals.

Full healer threads:
Ec xlator starts a full healer thread for the local subvolume provided by
glusterd to perform full crawl on the directory hierarchy to perform heals.
Once the crawl completes the thread exits if no more full heals are issued.

Changed xl-op prefix GF_AFR_OP to GF_SHD_OP to make it more generic.

Change-Id: Idf9b2735d779a6253717be064173dfde6f8f824b
BUG: 1177601
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/9787
Tested-by: Gluster Build System 
Reviewed-by: Ravishankar N 
Reviewed-by: Vijay Bellur

ec: Removed SSE2 dependency

2014-09-12T05:44:12+00:00

This patch implements the Galois Field multiplications using pure C
code without any assembler support. This makes the ec xlator portable
to other architectures.

In the future it will be possible to use an optimized implementation
of the multiplications using architecture dependent facilities (it
will be automatically detected and configured). To allow bricks with
different machine word sizes to be able to work seamlessly in the
same volume, the minimum fragment length to be stored in any brick
has been fixed to 512 bytes. Otherwise, different implementations
will corrupt the data (SSE2 used 128 bytes, while new implementation
would have used 64).

This patch also removes the '-msse2' option added on patch
http://review.gluster.org/8395/

Change-Id: Iaf6e4ef3dcfda6c68f48f16ca46fc4fb61a215f4
BUG: 1125166
Signed-off-by: Xavier Hernandez 
Reviewed-on: http://review.gluster.org/8413
Tested-by: Gluster Build System 
Reviewed-by: Dan Lambright

ec: Add -msse2 option to avoid fedora/rawhide compilation errors

2014-07-31T16:08:33+00:00

This solves a compilation error on some compiler versions.
To avoid compilation issues on non-Intel architectures, patch
http://review.gluster.org/8366/ has already been merged. It
disables ec on those architectures.

These modifications are temporary patches until a proper
solution for bug #1125166 is ready.

Change-Id: I74d0b79e84601cc4f86ad08ce0f8102b99a79a68
BUG: 1125168
Signed-off-by: Xavier Hernandez 
Reviewed-on: http://review.gluster.org/8395
Reviewed-by: Niels de Vos 
Tested-by: Gluster Build System

cluster/ec: Added erasure code translator

2014-07-11T17:33:40+00:00

Change-Id: I293917501d5c2ca4cdc6303df30cf0b568cea361
BUG: 1118629
Signed-off-by: Xavier Hernandez 
Reviewed-on: http://review.gluster.org/7749
Reviewed-by: Krishnan Parthasarathi 
Reviewed-by: Jeff Darcy 
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur