glusterfs.git/rpc, branch v3.3.0qa23

rpc/clnt: handle PARENT_DOWN event appropriately

2012-02-21T09:42:42+00:00

Change-Id: I4644e944bad4d240d16de47786b9fa277333dba4
BUG: 767862
Signed-off-by: Raghavendra G 
Signed-off-by: Amar Tumballi 
Reviewed-on: http://review.gluster.com/2735
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/afr: Add commands to see self-heald ops

2012-02-21T05:23:37+00:00

Change-Id: Id92d3276e65a6c0fe61ab328b58b3954ae116c74
BUG: 763820
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.com/2775
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

NLM - Network Lock Manger V4

2012-02-20T15:26:51+00:00

Change-Id: Ic31b8bb10a28408da2a623f4ecc0c60af01c64af
BUG: 795421
Signed-off-by: Krishna Srinivas 
Reviewed-on: http://review.gluster.com/2711
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

protocol/client,server: fcntl lock self healing.

2012-02-20T12:45:31+00:00

Currently(with out this patch), on a disconnect the server cleans up
the transport which inturn closes the fd's and releases the locks acquired on
those fd's by that client. On a reconnect, client just reopens the fd's but
doesn't reacquire the locks. The application that had previously acquired
the locks still is under the assumption that it is the owner of those locks
which might have been granted to other clients(if they request) by the server
leading to data corruption.

This patch allows the client to reacquire the fcntl locks (held on the fd's)
during client-server handshake.

* The server identifies the client via process-uuid-xl (which is a combination
  of uuid and client-protocol name, it is assumed to be unique) and lk-version
  number.

* The client maintains a list of process-uuid-xl, lk-version pair for each
  accepted connection. On a connect, the server traverses the list for a
  matching pair, if a matching pair is not found the the server returns
  lk-version with value 0, else it returns the lk-version it has in store.

* On a disconnect, the server and client enter grace period, and on the
  completion of the grace period, the client bumps up its lk-version number
  (which means, it will reacquire the locks the next time) and the server will
  distroy the connection. If reconnection happens within the grace period, the
  server will find the matching (process-uuid-xl, lk-version) pair in its list
  which guarantees that the fd's and there corresponding locks are still valid
  for this client.

Configurable options:
  To set grace-timeout, the following options are
    option server.grace-timeout value
    option client.grace-timeout value

  To enable or disable the lk-heal,
    option lk-heal [on|off]

gluster volume set command can be used to configurable options
Change-Id: Id677ef1087b300d649f278b8b2aa0d94eae85ed2
BUG: 795386
Signed-off-by: Mohammed Junaid 
Reviewed-on: http://review.gluster.com/2766
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

iobuf: use 'iobuf_get2()' to get variable sized buffers

2012-02-20T08:46:27+00:00

added 'TODO' in places where it is missing.

Change-Id: Ia802c94e3bb76930f7c88c990f078525be5459f5
Signed-off-by: Amar Tumballi 
BUG: 765264
Reviewed-on: http://review.gluster.com/388
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/dht: Rebalance will be a new glusterfs process

2012-02-19T09:31:19+00:00

rebalance will not use any maintainance clients. It is replaced by syncops,
with the volfile. Brickop (communication between glusterd<->glusterfs process)
is used for status and stop commands.

Dept-first traversal of dir is maintained, but data is migrated as and when
encounterd.
fix-layout (dir)
do
        Complete migrate-data of dir
        fix-layout (subdir)
done

Rebalance state is saved in the vol file, for restart-ability.
A disconnect event and pidfile state determine the defrag-status

Signed-off-by: shishirng 
Change-Id: Iec6c80c84bbb2142d840242c28db3d5f5be94d01
BUG: 763844
Reviewed-on: http://review.gluster.com/2540
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

cli/glusterd: volume status modification

2012-02-18T08:03:00+00:00

* Method of getting mount details of brick has been
  changed from direct reading of /etc/mtab to using
  libc's , providing a fairly portable
  version independent of different linux distributions.
  It is only supported on Linux though.

* Wrong fs type (rootfs for /) in fedora-based
  distributions has been fixed.

* Allows options (detail, mem, fd, et al) to "all" volumes.

* Use of the fnmatch's GNU extension flag,
  FNM_LEADING_DIR is restricted to Linux hosts only.
  In case of non-Linux hosts, partial match functionality
  is absent.

Change-Id: I102ce808c192ef635c2536a2167101be0aa0fc50
BUG: 786367
Signed-off-by: Rajesh Amaravathi 
Reviewed-on: http://review.gluster.com/2705
Tested-by: Gluster Build System 
Reviewed-by: Jeff Darcy 
Reviewed-by: Vijay Bellur

cli, glusterd : Added support for clear-locks command.

2012-02-17T12:50:55+00:00

Change-Id: I8e7cd51d6e3dd968cced1ec4115b6811f2ab5c1b
BUG: 789858
Signed-off-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.com/2552
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

protocol: remove the 'path<>' from rename() and link()

2012-02-17T06:49:15+00:00

missed it in the previous round of cleanup, path is completely
useless in resolve function.

Change-Id: I1aef0f5276afb77dfacfcc0c337ac80b4fcacc55
Signed-off-by: Amar Tumballi 
BUG: 790298
Reviewed-on: http://review.gluster.com/2756
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

cli: Enable output in XML

2012-02-16T05:45:27+00:00

This patch enables gluster cli to output data in xml format. XML output can be
obtained by passing "--xml" as an argument.

A new "volume list" command, which lists the volumes present in a cluster, has
been added. This can be used for obtaining a quick list of volumes.

Several commands, including "volume top", "volume profile", "volume status" and
"volume info", "volume list", have custom XML output routines. Other commands
use either one of the 2 generic output routines, cli_xml_output_str() &
cli_xml_output_dict().
NOTE: When using "all" for "volume status" and "volume info" the XML output will
have multiple roots.

Change-Id: I6117baa02ec06fda116177dbd401f66521263ac6
BUG: 790713
Signed-off-by: Kaushal M 
Reviewed-on: http://review.gluster.com/2753
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur