glusterfs.git/xlators/cluster/ec/src/ec-heald.c, branch v3.7.0

cluster/ec: Change meaning of trusted.ec.dirty

2015-05-09T03:12:31+00:00

- With this change, the xattr will represent if the file needs to be healed or
  not. It will have different values for data/entry and metadata changes.
- inode ref leaks and dict_set_dynstr related leaks fixed
- Added support for trylock/lock based on heal-cmd execution or not
  in data heal.
- Made fixes to pass regression runs

Change-Id: I9d8def4c2badde18a76b7898816fecfac113737a
BUG: 1216303
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/10385
Reviewed-on: http://review.gluster.org/10693
Tested-by: NetBSD Build System
Tested-by: Gluster Build System

libglusterfs/syncop: Add xdata to all syncop calls

2015-04-08T15:14:59+00:00

This patch adds support for xdata in both the
request and response path of syncops.

Few calls like lookup already had the support;
have renamed variables in few places to maintain
uniformity.

xdata passed downwards is known as xdata_in
and xdata passed upwards is known as xdata_out.

There is an old patch by Jeff Darcy at
http://review.gluster.org/#/c/8769/3 which does the
same for some selected calls. It also brings in
xdata support at gfapi level.

xdata support at gfapi level would be introduced
in subsequent patches.

Change-Id: I340e94ebaf2a38e160e65bc30732e8fe1c532dcc
BUG: 1158621
Signed-off-by: Raghavendra Talur 
Reviewed-on: http://review.gluster.org/9859
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

Avoid conflict between contrib/uuid and system uuid

2015-04-04T17:48:35+00:00

glusterfs relies on Linux uuid implementation, which
API is incompatible with most other systems's uuid. As
a result, libglusterfs has to embed contrib/uuid,
which is the Linux implementation, on non Linux systems.
This implementation is incompatible with systtem's
built in, but the symbols have the same names.

Usually this is not a problem because when we link
with -lglusterfs, libc's symbols are trumped. However
there is a problem when a program not linked with
-lglusterfs will dlopen() glusterfs component. In
such a case, libc's uuid implementation is already
loaded in the calling program, and it will be used
instead of libglusterfs's implementation, causing
crashes.

A possible workaround is to use pre-load libglusterfs
in the calling program (using LD_PRELOAD on NetBSD for
instance), but such a mechanism is not portable, nor
is it flexible. A much better approach is to rename
libglusterfs's uuid_* functions to gf_uuid_* to avoid
any possible conflict. This is what this change attempts.

BUG: 1206587
Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a
Signed-off-by: Emmanuel Dreyfus 
Reviewed-on: http://review.gluster.org/10017
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos

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