glusterfs.git/xlators/mgmt, branch experimental

all: handle string-overflow warnings of coverity

2018-12-20T09:33:59+00:00

updates: bz#789278
Change-Id: I7de800b90a614e3666e965b0cafc70026a844b2d
Signed-off-by: Amar Tumballi

cluster/afr: Allow lookup on root if it is from ADD_REPLICA_MOUNT

2018-12-18T10:30:19+00:00

Problem: When trying to convert a plain distribute volume to replica-3
or arbiter type it is failing with ENOTCONN error as the lookup on
the root will fail as there is no quorum.

Fix: Allow lookup on root if it is coming from the ADD_REPLICA_MOUNT
which is used while adding bricks to a volume. It will try to set the
pending xattrs for the newly added bricks to allow the heal to happen
in the right direction and avoid data loss scenarios.

Note: This fix will solve the problem of type conversion only in the
case where the volume was mounted at least once. The conversion of
non mounted volumes will still fail since the dht selfheal tries to
set the directory layout will fail as they do that with the PID
GF_CLIENT_PID_NO_ROOT_SQUASH set in the frame->root.

Change-Id: Ic511939981dad118cc946754341318b164954b3b
fixes: bz#1655854
Signed-off-by: karthik-us

performance/ob: make open-behind as a child of quick-read

2018-12-18T09:12:27+00:00

With read-after-open being set to yes by default, if open-behind sees
any reads, it'll do an open on backend (and hence flush/release
later). This means with the current order of quick-read and
open-behind, open-behind sees all reads and hence also does open
bringing down performance for small file reads.

Since for small files, reads are absorbed by quick-read, if quick-read
is made a parent of open-behind, ob doesn't witness any reads. For
read-only workloads, this means ob doen't do any opens (even with
read-after-open yes and use-anonymous-fd no).

Change-Id: I138a42b006d104cff43ee6f07829e39c36f6f234
Signed-off-by: Raghavendra Gowdappa 
Fixes: bz#1659327

glusterd: migrating rebalance commands to mgmt_v3 framework

2018-12-18T04:01:52+00:00

Current rebalance commands use the op_state machine framework.
Porting it to use the mgmt_v3 framework.

Change-Id: I6faf4a6335c2e2f3d54bbde79908a7749e4613e7
fixes: bz#1655827
Signed-off-by: Sanju Rakonde

selinux/glusterd : add "features.selinux" to glusterd-volume-set.c

2018-12-17T06:45:46+00:00

Fixes: bz#1659868
Change-Id: I38675ba4d47c8ba7f94cfb4734692683ddb3dcfd
Signed-off-by: Jiffin Tony Thottan

xlator: make 'xlator_api' mandatory

2018-12-13T09:11:50+00:00

* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing

NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.

fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi

glusterd: Resolve memory leak in some glusterd functions

2018-12-10T15:04:48+00:00

Problem: Functions allocate memory for req structure but after submit
         request they missed to cleanup memory

Solution: After submit request cleanup allocated mmeory

Change-Id: I8f995787ed8986b882f008ccd588670b5d4139f5
updates: bz#1633930
Signed-off-by: Mohit Agrawal

glusterd: fix get_mux_limit_per_process to read default value

2018-12-07T07:08:58+00:00

get_mux_limit_per_process () reads the global option dictionary and in
case it doesn't find out a key, assumes that
cluster.max-bricks-per-process option isn't configured however the
default value should be picked up in such case.

Change-Id: I35dd8da084adbf59793d58557e818d8e6c17f9f3
Fixes: bz#1656951
Signed-off-by: Atin Mukherjee

libglusterfs: Move devel headers under glusterfs directory

2018-12-05T21:47:04+00:00

libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.

Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation <> in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs

This change although big, is just moving around the headers and
making it correct when including these headers from other sources.

This helps us correctly include libglusterfs includes without
namespace conflicts.

Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR

protocol/server: support server.all-squash

2018-12-05T21:45:49+00:00

We still use gnfs on our side, so do a little work to support
server.all-squash. Just like server.root-squash, it's also a
volume wide option. Also see bz#1285126

$ gluster volume set  server.all-squash on

Note: If you enable server.root-squash and server.all-squash
at the same time, only server.all-squash works. Please refer
to following table

+---------------+-----------------+---------------------------+
|               |all_squash       | no_all_squash             |
+-------------------------------------------------------------+
|               |                 |anonuid/anongid for root   |
|root_squash    |anonuid/anongid  |useruid/usergid for no-root|
+-------------------------------------------------------------+
|no_root_squash |anonuid/anongid  |useruid/usergid            |
+-------------------------------------------------------------+

Updates bz#1285126
Signed-off-by: Xie Changlong 
Signed-off-by: Xue Chuanyu 
Change-Id: Iea043318fe6e9a75fa92b396737985062a26b47e