glusterfs.git/libglusterfs/src/xlator.c, branch v4.1.0alpha

server: fix unresolved symbols by moving them to libglusterfs

2018-04-20T07:55:29+00:00

Problem: glusterd2 build is failed due to undefined symbol
         (xlator_mem_cleanup , glusterfsd_ctx) in server.so

Solution: To resolve the same done below two changes
          1) Move xlator_mem_cleanup code from glusterfsd-mgmt.c
             to xlator.c to be part of libglusterfs.so
          2) replace glusterfsd_ctx to this->ctx because symbol
             glusterfsd_ctx is not part of server.so

BUG: 1544090
Change-Id: Ie5e6fba9ed458931d08eb0948d450aa962424ae5
fixes: bz#1544090
Signed-off-by: Mohit Agrawal

gluster: Sometimes Brick process is crashed at the time of stopping brick

2018-04-19T04:31:51+00:00

Problem: Sometimes brick process is getting crashed at the time
         of stop brick while brick mux is enabled.

Solution: Brick process was getting crashed because of rpc connection
          was not cleaning properly while brick mux is enabled.In this patch
          after sending GF_EVENT_CLEANUP notification to xlator(server)
          waits for all rpc client connection destroy for specific xlator.Once rpc
          connections are destroyed in server_rpc_notify for all associated client
          for that brick then call xlator_mem_cleanup for for brick xlator as well as
          all child xlators.To avoid races at the time of cleanup introduce
          two new flags at each xlator cleanup_starting, call_cleanup.

BUG: 1544090
Signed-off-by: Mohit Agrawal 

Note: Run all test-cases in separate build (https://review.gluster.org/#/c/19700/)
      with same patch after enable brick mux forcefully, all test cases are
      passed.

Change-Id: Ic4ab9c128df282d146cf1135640281fcb31997bf
updates: bz#1544090

core: provide infra to make any xlator pass-through

2018-03-09T18:32:56+00:00

updates: #304

Change-Id: If6a13d2e56b195390a386d720103a882e077f66c
Signed-off-by: Amar Tumballi

metrics: set latency min value during xlator init

2018-02-16T16:18:11+00:00

otherwise, the very first metrics will have all the min as 0.

also no need to print pending-fops if it is 0.

Updates #168

Change-Id: I233de6c92b1a73977bb468ba211ac6ec3c05298f
Signed-off-by: Amar Tumballi

Use RTLD_LOCAL for symbol resolution

2017-12-27T15:49:49+00:00

RTLD_LOCAL is the default value for symbol visibility flag of dlopen()
in Linux and NetBSD. Using it avoids conflicts during symbol resolution.

This also allows us to detect xlators that have not been explicitly
linked with libraries that they use. This used to go unnoticed
when RTLD_GLOBAL was being used.

BUG: 1193929
Change-Id: I50db6ea14ffdee96596060c4d6bf71cd3c432f7b
Signed-off-by: Prashanth Pai

core/memacct: save allocs in mem_acct_rec list

2017-12-07T09:27:27+00:00

With configure --enable-debug, add all object allocations
to a list in the corresponding mem_acct_rec. This
allows us to see all objects of a particular type
and allows for additional debugging in case of memory
leaks.

This is not compiled in by default and must be explicitly
enabled. It is intended to be used by developers.

Change-Id: I7cf2dbeadecf994423d7e7591e85f18d2575cce8
BUG: 1522662
Signed-off-by: N Balachandran

libglusterfs: specify ctx in gf_log_set_loglevel

2017-12-06T23:45:23+00:00

specify ctx in gf_log_set_loglevel, instead of getting it from a thread
specific variable.

Change-Id: I498f826e8e32231235a6b0005026a27c327727fd
BUG: 1521213
Signed-off-by: Zhang Huan

metrics: provide options to dump metrics from xlators

2017-12-06T19:59:22+00:00

* Introduce xlator methods to allow dumping of metrics
* Separate options to get the metrics dumped in a path

Updates #168

Change-Id: I7df80df33b71d6f449f03c2332665b4a45f6ddf2
Signed-off-by: Amar Tumballi

rio/everywhere: add icreate/namelink fop

2017-12-05T21:23:57+00:00

icreate creates inode, while namelink links the basename to it's
parent gfid.

For now mkdir is the primary user of these fops. Better distribution is
acheived by creating the inode on ,(say) mds1 and linking the basename to it's
parent gfid on mds2. The inode serves readdirp, stat etc.

More details about the fops are present at:
https://review.gluster.org/#/c/13395/3/design/DHT2/DHT2_Icreate_Namelink_Notes.md

This backport of three patches from experimental branch.
1- https://review.gluster.org/#/c/18085/
2- https://review.gluster.org/#/c/18086/
3- https://review.gluster.org/#/c/18094/

Updates gluster/glusterfs#243
Change-Id: I1bd3d5a441a3cfab1acfeb52f15c6c867d362592
Signed-off-by: Susant Palai

libglusterfs: Add put fop

2017-12-05T14:21:01+00:00

Problem: It had been a longtime request to implement put fop
in gluster. put fop in gluster may not have the exact sementics
of HTTP PUT, but can be easily extended to do so. The subsequent
patches, will contain more semantics on the put fop and its
guarentees.

Why compound fop framework is not used for put?
Compound fop framework currently doesn't allow compounding of
entry fop and inode fops, i.e. fops on multiple inodes cannot be
combined in compound fop.

Updates #353
Change-Id: Idb7891b3e056d46d570bb7e31bad1b6a28656ada
Signed-off-by: Poornima G