glusterfs.git/xlators/protocol/client/src/client-lk.c, branch v3.5.3beta2

protocol/client: Add fdctx back to saved-list after reopen

2013-02-03T19:33:18+00:00

Change-Id: I01caa1b51570359e6e3ffe1ffb7279cbdb0b0c64
BUG: 821056
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/4357
Tested-by: Gluster Build System 
Reviewed-by: Jeff Darcy

license: dual license under GPLV2 and LGPLV3+

2012-05-11T05:06:16+00:00

Note that the license was not changed in any of the following:
	.../argp-standalone/...
        .../booster/...
        .../cli/...
        .../contrib/...
        .../extras/...
        .../glusterfsd/...
        .../glusterfs-hadoop/...
        .../mod_clusterfs/...
        .../scheduler/...
        .../swift/...

The license was not changed in any of the non-building xlators. The
license was not changed in any of the xlators that seemed — to me — to
be clearly server-side only, e.g. protocol/server

Note too that copyright was changed along with the license; I did
not change the copyright in files where the license did not change.

If you find any errors or ommissions please don't hesitate to let me know.

The complete list of files with the license change is:
	libglusterfs/src/byte-order.h
	libglusterfs/src/call-stub.c
	libglusterfs/src/call-stub.h
	libglusterfs/src/checksum.c
	libglusterfs/src/checksum.h
	libglusterfs/src/circ-buff.c
	libglusterfs/src/circ-buff.h
	libglusterfs/src/common-utils.c
	libglusterfs/src/common-utils.h
	libglusterfs/src/compat-errno.c
	libglusterfs/src/compat-errno.h
	libglusterfs/src/compat.c
	libglusterfs/src/compat.h
	libglusterfs/src/daemon.c
	libglusterfs/src/daemon.h
	libglusterfs/src/defaults.c
	libglusterfs/src/defaults.h
	libglusterfs/src/dict.c
	libglusterfs/src/dict.h
	libglusterfs/src/event-history.c
	libglusterfs/src/event-history.h
	libglusterfs/src/event.c
	libglusterfs/src/event.h
	libglusterfs/src/fd-lk.c
	libglusterfs/src/fd-lk.h
	libglusterfs/src/fd.c
	libglusterfs/src/fd.h
	libglusterfs/src/gf-dirent.c
	libglusterfs/src/gf-dirent.h
	libglusterfs/src/globals.c
	libglusterfs/src/globals.h
	libglusterfs/src/glusterfs.h
	libglusterfs/src/graph-print.c
	libglusterfs/src/graph-utils.h
	libglusterfs/src/graph.c
	libglusterfs/src/hashfn.c
	libglusterfs/src/hashfn.h
	libglusterfs/src/iatt.h
	libglusterfs/src/inode.c
	libglusterfs/src/inode.h
	libglusterfs/src/iobuf.c
	libglusterfs/src/iobuf.h
	libglusterfs/src/latency.c
	libglusterfs/src/latency.h
	libglusterfs/src/list.h
	libglusterfs/src/lkowner.h
	libglusterfs/src/locking.h
	libglusterfs/src/logging.c
	libglusterfs/src/logging.h
	libglusterfs/src/mem-pool.c
	libglusterfs/src/mem-pool.h
	libglusterfs/src/mem-types.h
	libglusterfs/src/options.c
	libglusterfs/src/options.h
	libglusterfs/src/rbthash.c
	libglusterfs/src/rbthash.h
	libglusterfs/src/run.c
	libglusterfs/src/run.h
	libglusterfs/src/scheduler.c
	libglusterfs/src/scheduler.h
	libglusterfs/src/stack.c
	libglusterfs/src/stack.h
	libglusterfs/src/statedump.c
	libglusterfs/src/statedump.h
	libglusterfs/src/syncop.c
	libglusterfs/src/syncop.h
	libglusterfs/src/syscall.c
	libglusterfs/src/syscall.h
	libglusterfs/src/timer.c
	libglusterfs/src/timer.h
	libglusterfs/src/trie.c
	libglusterfs/src/trie.h
	libglusterfs/src/xlator.c
	libglusterfs/src/xlator.h
	libglusterfsclient/src/libglusterfsclient-dentry.c
	libglusterfsclient/src/libglusterfsclient-internals.h
	libglusterfsclient/src/libglusterfsclient.c
	libglusterfsclient/src/libglusterfsclient.h
	rpc/rpc-lib/src/auth-glusterfs.c
	rpc/rpc-lib/src/auth-null.c
	rpc/rpc-lib/src/auth-unix.c
	rpc/rpc-lib/src/protocol-common.h
	rpc/rpc-lib/src/rpc-clnt.c
	rpc/rpc-lib/src/rpc-clnt.h
	rpc/rpc-lib/src/rpc-transport.c
	rpc/rpc-lib/src/rpc-transport.h
	rpc/rpc-lib/src/rpcsvc-auth.c
	rpc/rpc-lib/src/rpcsvc-common.h
	rpc/rpc-lib/src/rpcsvc.c
	rpc/rpc-lib/src/rpcsvc.h
	rpc/rpc-lib/src/xdr-common.h
	rpc/rpc-lib/src/xdr-rpc.c
	rpc/rpc-lib/src/xdr-rpc.h
	rpc/rpc-lib/src/xdr-rpcclnt.c
	rpc/rpc-lib/src/xdr-rpcclnt.h
	rpc/rpc-transport/rdma/src/name.c
	rpc/rpc-transport/rdma/src/name.h
	rpc/rpc-transport/rdma/src/rdma.c
	rpc/rpc-transport/rdma/src/rdma.h
	rpc/rpc-transport/socket/src/name.c
	rpc/rpc-transport/socket/src/name.h
	rpc/rpc-transport/socket/src/socket.c
	rpc/rpc-transport/socket/src/socket.h
	xlators/cluster/afr/src/afr-common.c
	xlators/cluster/afr/src/afr-dir-read.c
	xlators/cluster/afr/src/afr-dir-read.h
	xlators/cluster/afr/src/afr-dir-write.c
	xlators/cluster/afr/src/afr-dir-write.h
	xlators/cluster/afr/src/afr-inode-read.c
	xlators/cluster/afr/src/afr-inode-read.h
	xlators/cluster/afr/src/afr-inode-write.c
	xlators/cluster/afr/src/afr-inode-write.h
	xlators/cluster/afr/src/afr-lk-common.c
	xlators/cluster/afr/src/afr-mem-types.h
	xlators/cluster/afr/src/afr-open.c
	xlators/cluster/afr/src/afr-self-heal-algorithm.c
	xlators/cluster/afr/src/afr-self-heal-algorithm.h
	xlators/cluster/afr/src/afr-self-heal-common.c
	xlators/cluster/afr/src/afr-self-heal-common.h
	xlators/cluster/afr/src/afr-self-heal-data.c
	xlators/cluster/afr/src/afr-self-heal-entry.c
	xlators/cluster/afr/src/afr-self-heal-metadata.c
	xlators/cluster/afr/src/afr-self-heal.h
	xlators/cluster/afr/src/afr-self-heald.c
	xlators/cluster/afr/src/afr-self-heald.h
	xlators/cluster/afr/src/afr-transaction.c
	xlators/cluster/afr/src/afr-transaction.h
	xlators/cluster/afr/src/afr.c
	xlators/cluster/afr/src/afr.h
	xlators/cluster/afr/src/pump.c
	xlators/cluster/afr/src/pump.h
	xlators/cluster/dht/src/dht-common.c
	xlators/cluster/dht/src/dht-common.h
	xlators/cluster/dht/src/dht-diskusage.c
	xlators/cluster/dht/src/dht-hashfn.c
	xlators/cluster/dht/src/dht-helper.c
	xlators/cluster/dht/src/dht-inode-read.c
	xlators/cluster/dht/src/dht-inode-write.c
	xlators/cluster/dht/src/dht-layout.c
	xlators/cluster/dht/src/dht-linkfile.c
	xlators/cluster/dht/src/dht-mem-types.h
	xlators/cluster/dht/src/dht-rebalance.c
	xlators/cluster/dht/src/dht-rename.c
	xlators/cluster/dht/src/dht-selfheal.c
	xlators/cluster/dht/src/dht.c
	xlators/cluster/dht/src/nufa.c
	xlators/cluster/dht/src/switch.c
	xlators/cluster/stripe/src/stripe-helpers.c
	xlators/cluster/stripe/src/stripe-mem-types.h
	xlators/cluster/stripe/src/stripe.c
	xlators/cluster/stripe/src/stripe.h
	xlators/features/index/src/index-mem-types.h ¹
	xlators/features/index/src/index.c ¹
	xlators/features/index/src/index.h ¹
	xlators/performance/io-cache/src/io-cache.c
	xlators/performance/io-cache/src/io-cache.h
	xlators/performance/io-cache/src/ioc-inode.c
	xlators/performance/io-cache/src/ioc-mem-types.h
	xlators/performance/io-cache/src/page.c
	xlators/performance/io-threads/src/io-threads.c
	xlators/performance/io-threads/src/io-threads.h
	xlators/performance/io-threads/src/iot-mem-types.h
	xlators/performance/md-cache/src/md-cache-mem-types.h
	xlators/performance/md-cache/src/md-cache.c
	xlators/performance/quick-read/src/quick-read-mem-types.h
	xlators/performance/quick-read/src/quick-read.c
	xlators/performance/quick-read/src/quick-read.h
	xlators/performance/read-ahead/src/page.c
	xlators/performance/read-ahead/src/read-ahead-mem-types.h
	xlators/performance/read-ahead/src/read-ahead.c
	xlators/performance/read-ahead/src/read-ahead.h
	xlators/performance/symlink-cache/src/symlink-cache.c
	xlators/performance/write-behind/src/write-behind-mem-types.h
	xlators/performance/write-behind/src/write-behind.c
	xlators/protocol/auth/addr/src/addr.c ¹
	xlators/protocol/auth/login/src/login.c ¹
	xlators/protocol/client/src/client-callback.c
	xlators/protocol/client/src/client-handshake.c
	xlators/protocol/client/src/client-helpers.c
	xlators/protocol/client/src/client-lk.c
	xlators/protocol/client/src/client-mem-types.h
	xlators/protocol/client/src/client.c
	xlators/protocol/client/src/client.h
	xlators/protocol/client/src/client3_1-fops.c

¹ Copyright only, license reverted to original

Change-Id: If560e826c61b6b26f8b9af7bed6e4bcbaeba31a8
BUG: 820551
Signed-off-by: Kaleb KEITHLEY 
Reviewed-on: http://review.gluster.com/3304
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

core: adding extra data for fops

2012-03-22T23:40:27+00:00

with this change, the xlator APIs will have a dictionary as extra
argument, which is passed between all the layers. This can be
utilized for overloading in some of the operations.

Change-Id: I58a8186b3ef647650280e63f3e5e9b9de7827b40
Signed-off-by: Amar Tumballi 
BUG: 782265
Reviewed-on: http://review.gluster.com/2960
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

core: utilize mempool for frame->local allocations

2012-02-21T10:42:09+00:00

in each translator, which uses 'frame->local', we are using
GF_CALLOC/GF_FREE, which would be costly considering the
number of allocation happening in a lifetime of 'fop'. It
would be good to utilize the mem pool framework for xlator's
local structures, so there is no allocation overhead.

Change-Id: Ida6e65039a24d9c219b380aa1c3559f36046dc94
Signed-off-by: Amar Tumballi 
BUG: 765336
Reviewed-on: http://review.gluster.com/2772
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

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

protocol/client: delete locks only for non-anonymous fds

2012-02-20T08:49:44+00:00

delete_granted_lock_owners () is not called for anonymous
fds since they are not involved in locking

Change-Id: Icdc7818f98f5371232ba276ed442704ef69e6b0e
BUG: 787365
Signed-off-by: Rajesh Amaravathi 
Reviewed-on: http://review.gluster.com/2754
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur

nfs: avoid logging invalid fdctx in case of anonymous fds

2012-02-14T18:25:30+00:00

if get_fd_ctx fails (as in case of anonymous fds), overwhelming
amount of entries are seen in the nfs log, causing dd and other
heavy i/o operations to become unresponsive. this patch logs an
invalid fdctx only if it is not an anonymous fd.

Change-Id: I4e917d150d6a053af77d47a94a2f1c2633acadb5
BUG: 787365
Signed-off-by: Rajesh Amaravathi 
Reviewed-on: http://review.gluster.com/2747
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

core: change lk-owner as a 1k buffer

2012-01-25T04:14:17+00:00

so, NLM can send the lk-owner field directly to the locks translators,
while doing the same effort, also enabled sending maximum of 500 aux gid
over protocol.

Change-Id: I87c2514392748416f7ffe21d5154faad2e413969
Signed-off-by: Amar Tumballi 
BUG: 767229
Reviewed-on: http://review.gluster.com/779
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

Move some of the messages to log level `TRACE'.

2011-11-16T07:30:22+00:00

Change-Id: I46133b5e2218b9d810251b3dadadd8f157ab07d7
BUG: 3761
Reviewed-on: http://review.gluster.com/643
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

Eliminate many "var set but not used" warnings with newer gcc.

2011-09-08T06:48:01+00:00

This fixes ~200 such warnings, but leaves three categories untouched.

(1) Rpcgen code.

(2) Macros which set variables in the outer (calling function) scope.

(3) Variables which are set via function calls which may have side effects.

Change-Id: I6554555f78ed26134251504b038da7e94adacbcd
BUG: 2550
Reviewed-on: http://review.gluster.com/371
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati