glusterfs.git/xlators/features/index/src/index.h, branch v3.10.0

features/index: Do deletion of name-index in unwind path

2016-06-24T04:14:08+00:00

Previously the deletion of name index was being done before
winding the xattrop to posix. This order needs to be changed
to ensure we don't lose the index in the event the xattrop fails
in posix xl.

Change-Id: I4aa892b102cbf5269cede041b871064563cb7348
BUG: 1331323
Signed-off-by: Krutika Dhananjay 
Reviewed-on: http://review.gluster.org/14742
Smoke: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Ravishankar N 
CentOS-regression: Gluster Build System

index: improve compiler warning fix

2016-05-23T08:13:27+00:00

Commit 137bd83029458ecd461718a891c74cd1afd8f6cb introduced some
typecasting to work around a compiler warning. It is much cleaner to
add a -1 value in the enumeration and use that in if-statements.

BUG: 1335232
Change-Id: I830a565b8d96d7b51ff775e94aa23dd567ffe0d9
Signed-off-by: Niels de Vos 
Reviewed-on: http://review.gluster.org/14409
Smoke: Gluster Build System 
Reviewed-by: Ravishankar N 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Kaleb KEITHLEY

afr/index: changes for granular entry self-heal

2016-04-30T13:44:07+00:00

Implements new indices type ENTRY_CHANGES where other
xlators can add/delete names.

Change-Id: I01c5568997085e11d22ba36a4376c70b78fb3827
BUG: 1269461
Signed-off-by: Ravishankar N 
Reviewed-on: http://review.gluster.org/12482
Tested-by: Krutika Dhananjay 
Tested-by: Pranith Kumar Karampuri 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri

features/index : Readdirp performance improvement

2015-11-25T03:06:02+00:00

Things done :
Index now maintains two different directories :
1) for pending xattrs (trusted.afr.volname-client-n,
                       trusted.ec.dirty)

2) for on going xattrs (trusted.afr.dirty)

Based on the xattr, index decides the directory
to add/del entry in/from.

Change-Id: Ie04c02ea2d862cf80426a871a9a1e80b0773d9fd
BUG: 1250803
Signed-off-by: Anuradha Talur 
Reviewed-on: http://review.gluster.org/12468
Tested-by: NetBSD Build System 
Tested-by: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri

features/index: Add option to track specific xattrs for xattrop64

2015-02-25T05:57:53+00:00

This enables trusted.ec.dirty to be tracked in index

Change-Id: Ief1619110859f6f9ccee3da229f0688b73e2124b
BUG: 1177601
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/9602
Reviewed-by: Krutika Dhananjay 
Tested-by: Gluster Build System

telldir()/seekdir() portability fixes

2014-12-17T11:48:22+00:00

POSIX says that an offset obtained from telldir() can only be used
on the same DIR *. Linux is abls to reuse the offset accross
closedir()/opendir() for a given directory, but this is not portable
and such a behavior should be fixed.

An incomplete fix for the posix xlator was merged in
http://review.gluster.com/8926
This change set completes it.

- Perform the same fix index xlator.
- Use appropriate casts and variable types so that 32 bit signed
  offsets obtained by telldir() do not get clobbered when copied into
  64 bit signed types.
- modify glfs-heal.c and afr-self-heald.c so that they do not use
  anonymous fd, since this will cause closedir()/opendir() between
  each syncop_readdir(). On failure we fallback to anonymous fs
  only for Linux so that we can cope with updated client vs not
  updated brick.
- Avoid sending an EINVAL when the client request for the EOF offset.
  Here we fix an error in previous fix for posix xlator: since we
  fill each directory entry with the offset of the next entry, we
  must consider as EOF the offset of the last entry, and not the
  value of telldir() after we read it.
- Add checks in regression tests that we do not hit cases where
  offsets fed to seekdir() are wrong. Introduce log_newer() shell
  function to check for messages produced by the current script.

This fix gather changes from http://review.gluster.org/9047
and http://review.gluster.org/8936 making them obsolete.

BUG: 1129939
Change-Id: I59fb7f06a872c4f98987105792d648141c258c6a
Signed-off-by: Emmanuel Dreyfus 
Reviewed-on: http://review.gluster.org/9071
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Bhat 
Tested-by: Raghavendra Bhat

cluster/afr: refactor

2014-03-22T12:25:57+00:00

- Remove client side self-healing completely (opendir, openfd, lookup)
- Re-work readdir-failover to work reliably in case of NFS
- Remove unused/dead lock recovery code
- Consistently use xdata in both calls and callbacks in all FOPs
- Per-inode event generation, used to force inode ctx refresh
- Implement dirty flag support (in place of pending counts)
- Eliminate inode ctx structure, use read subvol bits + event_generation
- Implement inode ctx refreshing based on event generation
- Provide backward compatibility in transactions
- remove unused variables and functions
- make code more consistent in style and pattern
- regularize and clean up inode-write transaction code
- regularize and clean up dir-write transaction code
- regularize and clean up common FOPs
- reorganize transaction framework code
- skip setting xattrs in pending dict if nothing is pending
- re-write self-healing code using syncops
- re-write simpler self-heal-daemon

Change-Id: I1e4080c9796c8a2815c2dab4be3073f389d614a8
BUG: 1021686
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6010
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/afr: [Feature] Command implementation to get heal-count

2013-10-14T21:41:54+00:00

Currently to know the number of files to be healed, either user
has to go to backend and check the number of entries present in
indices/xattrop directory. But if a volume consists of large
number of bricks, going to each backend and counting the number
of entries is a time-taking task. Otherwise user can give
gluster volume heal vol-name info command but with this
approach if no. of entries are very hugh in the indices/
xattrop directory, it will comsume time.

So as a feature, new command is implemented.

Command 1: gluster volume heal vn statistics heal-count
This command will get the number of entries present in
every brick of a volume. The output displays only entries
count.

Command 2: gluster volume heal vn statistics heal-count
           replica 192.168.122.1:/home/user/brickname

           Here if we are concerned with just one replica.
So providing any one of the brick of a replica will get
the number of entries to be healed for that replica only.

Example:
Replicate volume with replica count 2.

Backend status:
--------------
[root@dhcp-0-17 xattrop]# ls -lia | wc -l
1918

NOTE: Out of 1918, 2 entries are  dummy
entries so actual no. of entries to be healed are
1916.

[root@dhcp-0-17 xattrop]# pwd
/home/user/2ty/.glusterfs/indices/xattrop

Command output:
--------------
Gathering count of entries to be healed on volume volume3 has been successful

Brick 192.168.122.1:/home/user/22iu
Status: Brick is Not connected
Entries count is not available

Brick 192.168.122.1:/home/user/2ty
Number of entries: 1916

Change-Id: I72452f3de50502dc898076ec74d434d9e77fd290
BUG: 1015990
Signed-off-by: Venkatesh Somyajulu 
Reviewed-on: http://review.gluster.org/6044
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

All: License message change

2012-09-13T20:19:37+00:00

License message changed for server-side, dual license GPLV2 and LGPLv3+.

Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09
BUG: 852318
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3940
Tested-by: Gluster Build System 
Reviewed-by: Kaleb KEITHLEY 
Reviewed-by: Anand Avati

All: License message change

2012-08-28T10:45:06+00:00

The license message is changed to
  Copyright (c) 2008-2012 Red Hat, Inc. 
  This file is part of GlusterFS.

  This file is licensed to you under your choice of the GNU Lesser
  General Public License, version 3 or any later version (LGPLv3 or
  later), or the GNU General Public License, version 2 (GPLv2), in all
  cases as published by the Free Software Foundation.

Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4
BUG: 852318
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3858
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur