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The feature is controlled by presence of the following file:
/var/lib/glusterd/secure-access
See the comment near the definition of SECURE_ACCESS_FILE in glusterfs.h
for the rationale. With this enabled, the following rules apply to
connections:
UNIX-domain sockets never have SSL.
Management-port sockets (both connecting and accepting, in
daemons and CLI) have SSL based on presence of the file.
Other IP sockets have SSL based on the existing client.ssl and
server.ssl volume options.
Transport multi-threading is explicitly turned off in glusterd (it would
otherwise be turned on when SSL is) due to multi-threading issues.
Tests have been elided to avoid risk of leaving a file which will cause
all subsequent tests to run with management SSL still enabled.
IMPLEMENTATION NOTE
The implementation is a bit messy, and consists of two stages. First we
decide whether to set the relevant fields in our context structure, based
on presence of the sentinel file OR a command-line override. Later we
decide whether a particular connection should actually use SSL, based on the
context flags plus what kind of connection we're making[1] and what kind of
daemon we're in[2].
[1] inbound, outbound to glusterd port, other outbound
[2] glusterd, glusterfsd, other
TESTING NOTE
Instead of just running one special test for this feature, the ideal
would be to run all tests with management SSL enabled. However, it
would be inappropriate or premature to set up an optional feature in the
patch itself. Therefore, the method of choice is to submit a separate
patch on top, which modifies "cleanup" in include.rc to recreate the
secure-access file and associated SSL certificate/key files before each
test.
Change-Id: I0e04d6d08163893e24ec8c031748c5c447d7f780
BUG: 1114604
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/8094
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
- Assign frame->root->client so that gf_client_unref happens
in server_connection_cleanup_flush_cbk
- Avoid taking extra ref in gf_client_get
TODO:
The whole reason why there are two types of refs
bind, ref-count is to avoid lock inside lock which
is not the case now. I will be sending one more patch
which will accomplish that as well as changing the
tablearray to list
Change-Id: Ic9971cf248c5ee2cdbfdef8e9ff6d54e3ec60ced
BUG: 1116672
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8247
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Access to a volume is now controlled by the following options, based on
whether SSL is enabled or not.
* server.ssl-allow: get identity from certificate, no password needed
* auth.allow: get identity and matching password from command line
It is not possible to allow both simultaneously, since the connection
itself is either using SSL or it isn't.
Change-Id: I5a5be66520f56778563d62f4b3ab35c66cc41ac0
BUG: 1114604
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/3695
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
With change 28209283a67f13802cc0c1d3df07c676926810a2, the root squash option
is enabled by default even for the trusted clients. This disallowed quota
auxiliary mount from setting the limit.
This patch adds the quota aux mount process to list of 'special' clients which
have the root squash disabled by default.
Change-Id: Ie6583dd3deb170563daf001239c51bcff1ce078b
BUG: 1104692
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/7967
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
Problems with fuse/server:
Fuse loc touch up sets loc->name even when pargfid
is not known. Server lookup does (pargfid, name) based
lookup when name is set ignoring the gfid. Because of this server
resolver finds that the lookup came on (null-pargfid, name) and
fails the lookup with EINVAL.
Fix:
Don't set loc->name in loc_touchup if the pargfid is not known.
Did the same even for server-resolver
Problem with afr:
Lets say there is a directory hierarchy a/b/c/d on the mount and the
user is cd'ed into the directory. Bring down one of the bricks of replica and
remove all directories/files to simulate disk replacement on that brick. Now
this brick is brought back up. Creates on the cd'ed directory fail with ESTALE.
Basically before sending a create of 'f' inside 'd', fuse sends a lookup to
make sure the file is not present. On one of the bricks 'd' is present and
'f' is not so it sends ENOENT as response. On the new brick 'd' itself is not
present. So it sends ESTALE. In afr ESTALE is considered to be special errno on
witnessing which lookup has to fail. And ESTALE is given more priority than
ENOENT. Due to these reasons lookup fails with ESTALE rather than ENOENT. Since
lookup didn't fail with ENOENT, 'create' can't be issued so the command is
failed with ESTALE.
Solution:
Afr needs to consider ESTALE errno normally and ENOENT needs to
be given more priority so that operations like create can proceed even when
only one of the brick is up and running. Whenever client xlator identifies
that gfid-changed, it sets that information in lookup xdata. Afr uses this
information to fail the lookup with ESTALE so that top xlator can send
fresh lookup.
Change-Id: Ica6ce01baef08620154050a635e6f97d51029ef6
BUG: 1106408
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8015
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Upon reconfigure, when lru limit of the inode table is changed,
the new value was just saved in the private structure of the
protocol/server xlator and the inode table used to have the older
values still. A brick start was required for the changes to get
reflected. To handle it, traverse through the xlator tree and check
whether a xlator is a bound_xl or not (if it is a bound_xl it would
have its itable pointer set). If a xlator is a bound_xl, then get
the inode table of that bound_xl and set its lru limit to new value
given via cli. Also prune the inode table so that extra inodes are
purged from the inode table.
Change-Id: I6909be028c116adaa1d1a5108470015b5fc6f09d
BUG: 1103756
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/7957
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>
The changes which consists of the translators for the USS (User Servicable
Snapshots) is submitted as a separate patch. Current patch provides the
CLI access to the feature.
Change-Id: I6b98a42fcfa82f0870d8048fe0bb53141565e9c6
BUG: 1094815
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/7705
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
When there are too many IO happening, brick process epoll thread
will be busy and fails to respond to the glusterd pick packet within
30sec.
Also epoll thread can be blocked by a big-lock.
Solution is to disable ping-timer by default and only enable where ever
required
Later when the epoll thread model changed and made lighter,
we need to revert back this change. http://review.gluster.com/3842 is
one such approach.
Change-Id: I7f80ad3eb00f7d9c4d4527305932f7cf4920e73f
BUG: 1097224
Signed-off-by: Vijaikumar M <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/7753
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
While accessing the procedures of given RPC program in,
rpcsvc_get_program_vector_sizer(), It was not checking boundary
conditions which would cause buffer overflow and subsequently SEGV.
Make sure rpcsvc_actor_t arrays have numactors number of actors.
FIX:
Validate the RPC procedure number before fetching the actor.
Special Thanks to: Murray Ketchion, Grant Byers
Change-Id: I8b5abd406d47fab8fca65b3beb73cdfe8cd85b72
BUG: 1096020
Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com>
Reviewed-on: http://review.gluster.org/7726
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
The new volume option 'server.manage-gids' can be enabled in
environments where a user belongs to more than the current absolute
maximum of 93 groups. This option triggers the following behavior:
1. The AUTH_GLUSTERFS structure sent by GlusterFS clients (fuse, nfs or
libgfapi) will contain only one (1) auxiliary group, instead of
a full list. This reduces network usage and prevents problems in
encoding the AUTH_GLUSTERFS structure which should fit in 400 bytes.
2. The single group in the RPC Calls received by the server is replaced
by resolving the groups server-side. Permission checks and similar in
lower xlators are applied against the full list of groups where the
user belongs to, and not the single auxiliary group that the client
sent.
Change-Id: I9e540de13e3022f8b63ff893ecba511129a47b91
BUG: 1053579
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/7501
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Santosh Pradhan <spradhan@redhat.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-by: Anand Avati <avati@redhat.com>
server.outstanding-rpc-limit by passes validation enforcement of gluster
as protocol/server ignores any keys starting with rpc (rpc* wildcard).
Which also causes a side effect, i.e. help text gets displayed as NULL.
Change-Id: I925e028529d671e1e29a0c7ff7e625fdb49a1be4
BUG: 1091364
Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com>
Reviewed-on: http://review.gluster.org/7562
Reviewed-by: Poornima G <pgurusid@redhat.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
As a new barrier translator is introduced, we dont require
the old barrier code. Hence cleaning thar up.
Change-Id: Ieedca6f33a746898f0d2332fda1f1d4c86fff98f
BUG: 1061685
Signed-off-by: Sachin Pandit <spandit@redhat.com>
Reviewed-on: http://review.gluster.org/7577
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
This patch refactors the existing client ping timer implementation, and makes
use of the common code for implementing both client ping timer and the
glusterd ping timer.
A new gluster rpc program for ping is introduced. The ping timer is only
started for peers that have this new program. The deafult glusterd ping
timeout is 30 seconds. It is configurable by setting the option
'ping-timeout' in glusterd.vol .
Also, this patch introduces changes in the glusterd-handshake path. The client
programs for a peer are now set in the callback of dump_versions, for both
the older handshake and the newer op-version handshake. This is the only place
in the handshake process where we know what programs a peer supports.
Change-Id: I035815ac13449ca47080ecc3253c0a9afbe9016a
BUG: 1038261
Signed-off-by: Vijaikumar M <vmallika@redhat.com>
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/5202
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
gluster-devel@nongnu.org has moved to gluster-devel@gluster.org. All
occurrences in the current (non legacy) documentation and code have been
adjusted.
Change-Id: I053162e633f7ea14fd3eed239ded017df165147c
BUG: 1091705
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/7573
Reviewed-by: Justin Clift <justin@gluster.org>
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>
rpc_clnt object is destroyed after the corresponding transport object is
destroyed. But rpc_clnt_reconnect, a timer driven function, refers to
the transport object beyond its 'life'. Instead, using the embedded
connection object prevents use after free problem wrt transport object.
Also, access transport object under conn->lock.
Change-Id: Iae28e8a657d02689963c510114ad7cb7e6764e62
BUG: 962619
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/6751
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
This changes the following log messages from INFO (default value) to
DEBUG. We do not really care if someone tries to read extended
attributes that do not exist.
[2013-12-09 12:19:05.924497] E [posix.c:3539:posix_fgetxattr] 0-dis-rep-posix: fgetxattr failed on key system.posix_acl_access (No data available)
[2013-12-09 12:19:05.924545] I [server-rpc-fops.c:863:server_fgetxattr_cbk] 0-dis-rep-server: 13074: FGETXATTR 1 (b8381953-ffa5-40fa-90dd-ae122335cc4b) (system.posix_acl_access) ==> (No data available)
Change-Id: Idbbeb026f81e67025a2b36d7bfeb125ad2a1f61b
BUG: 1027174
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/7171
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-by: Anand Avati <avati@redhat.com>
Problem:
It was observed that in some cases client disconnects
and re-connects before server xlator could detect that a
disconnect happened. So it still uses previous fdtable and ltable.
But it can so happen that in between disconnect and re-connect
an 'unlock' fop may fail because the fds are marked 'bad' in client
xlator upon disconnect. Due to this stale locks remain on the brick
which lead to hangs/self-heals not happening etc.
For the exact bug RCA please look at
https://bugzilla.redhat.com/show_bug.cgi?id=1049932#c0
Fix:
When lk-heal is not enabled make sure connection-id is different for
every setvolume. This will make sure that a previous connection's
resources are not re-used in server xlator.
Change-Id: Id844aaa76dfcf2740db72533bca53c23b2fe5549
BUG: 1049932
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/6669
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* As of now clients mounting within the storage pool using that machine's
ip/hostname are trusted clients (i.e clients local to the glusterd).
* Be careful when the request itself comes in as nfsnobody (ex: posix tests).
So move the squashing part to protocol/server when it creates a new frame
for the request, instead of auth part of rpc layer.
* For nfs servers do root-squashing without checking if it is trusted client,
as all the nfs servers would be running within the storage pool, hence will
be trusted clients for the bricks.
* Provide one more option for mounting which actually says root-squash
should/should not happen. This value is given priority only for the trusted
clients. For non trusted clients, the volume option takes the priority. But
for trusted clients if root-squash should not happen, then they have to be
mounted with root-squash=no option. (This is done because by default
blocking root-squashing for the trusted clients will cause problems for smb
and UFO clients for which the requests have to be squashed if the option is
enabled).
* For geo-replication and defrag clients do not do root-squashing.
* Introduce a new option in open-behind for doing read after successful open.
Change-Id: I8a8359840313dffc34824f3ea80a9c48375067f0
BUG: 954057
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/4863
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Capturing GlusterFS traffic with tcpdump and displaying it in Wireshark
shows that the size of all WRITEs are 0 bytes. It seems that the
attribute is not used, and the size is calculated an other way.
Even if the size attribute is not used (yet), it should be set correctly
to prevent confusing while debugging network traffic with Wireshark or
other tools.
Note that the on-wire format is not being changed with this patch. The
size is already part of the structure that is exchanged between the
client and server.
Change-Id: I9d67fe17bf203672116dea4948328e2af4004677
BUG: 1057264
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/6766
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vikhyat Umrao <vumrao@redhat.com>
With 64, NFS server hangs with large I/O load (~ 64 threads writing
to NFS server). The test results from Ben England (Performance expert)
suggest to set it as 16 instead of 64.
Change-Id: I418ff5ba0a3e9fdb14f395b8736438ee1bbd95f4
BUG: 1008301
Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com>
Reviewed-on: http://review.gluster.org/6696
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: ben england <bengland@redhat.com>
Introduce new options to modify the behaviour of server.root-squash.
With server.anonuid and server.anongid the uid/gid can be specified and
the root user (uid=0 and gid=0) will be mapped to the given uid/gid
instead of nfsnobody (uid=65534 and gid=65534).
Many thanks to Vikhyat Umrao for writing the majority of the test-case!
Change-Id: I6379a3d2ef52b9b9707f2f6f0529657580c8d779
BUG: 1043886
CC: Vikhyat Umrao <vumrao@redhat.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/6546
Reviewed-by: Santosh Pradhan <spradhan@redhat.com>
Reviewed-by: Vikhyat Umrao <vumrao@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
if client/server state versions match, we still need to notify
parent xlators of reconnection (CHILD_UP) because they were
notified of CHILD_DOWN at the time of disconnection.
Change-Id: I36c4bde6d8c3db9cb0c48eeb10663b56897c932e
BUG: 1037267
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/6396
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
When clients refer to a GFID which does not exist, the errno to
be returned in ESTALE (and not ENOENT). Even though ENOENT might
look "proper" most of the time, as the application eventually expects
ENOENT even if a parent directory does not exist, not returning
ESTALE results in resolvers (FUSE and GFAPI) to not retry resolution
in uncached mode. This can result in spurious ENOENTs during
concurrent path modification operations.
Change-Id: I7a06ea6d6a191739f2e9c6e333a1969615e05936
BUG: 1032894
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/6318
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
glfs_zerofill() can be potentially called to zero-out entire file and
hence allow for bigger value of length parameter.
Change-Id: I75f1d11af298915049a3f3a7cb3890a2d72fca63
BUG: 1028673
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-on: http://review.gluster.org/6266
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: M. Mohan Kumar <mohan@in.ibm.com>
Tested-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Implement reconfigure() for NFS xlator so that volume set/reset wont
restart the NFS server process. But few options can not be reconfigured
dynamically e.g. nfs.mem-factor, nfs.port etc which needs NFS to be
restarted.
Change-Id: Ic586fd55b7933c0a3175708d8c41ed0475d74a1c
BUG: 1027409
Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com>
Reviewed-on: http://review.gluster.org/6236
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Problem:
Messages were getting logged very frequently at log level INFO.
[2013-03-01 11:34:28.029222] I [server3_1-fops.c:1541:server_open_cbk] vol-server: 993888: OPEN (null) (--) ==> -1 (No such file or directory)
[2013-03-01 11:34:28.031579] I [server3_1-fops.c:252:server_inodelk_cbk] vol-server: 993896: INODELK (null) (--) ==> -1 (No such file or directory)
[2013-03-01 11:34:28.034041] I [server3_1-fops.c:252:server_inodelk_cbk] vol-server: 993914: INODELK (null) (--) ==> -1 (No such file or directory)
[2013-03-01 11:34:28.040435] I [server3_1-fops.c:1338:server_flush_cbk] vol-server: 993938: FLUSH -2 (--) ==> -1 (No such file or directory)
Solution:
Moved them to DEBUG log level if error number equlas to ENOENT else to ERROR log level.
It will help in decreasing the size of log files at INFO log level.
For server_open_cbk and for some other functions we already have a patch, below is the URL for it.
URL- http://review.gluster.org/6241
This patch solves logging problem for functions server_inodelk_cbk and server_flush_cbk.
Change-Id: I57372e851371e466f1674726015e28378b826f5f
BUG: 1029372
Signed-off-by: Vikhyat Umrao<vumrao@redhat.com>
Reviewed-on: http://review.gluster.org/6252
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Problem:
Messages were getting logged very frequently at log level INFO.
One of the log file snippet -
[2013-10-27 00:05:01.501355] I [server3_1-fops.c:1707:server_stat_cbk] 0-vol-server: 24846575: STAT (null) (--) ==> -1 (No such file or directory)
[2013-10-27 00:05:01.505101] I [server3_1-fops.c:1707:server_stat_cbk] 0-vol-server: 24846577: STAT (null) (--) ==> -1 (No such file or directory)
[2013-10-27 00:05:01.507299] I [server3_1-fops.c:1707:server_stat_cbk] 0-vol-server: 24846578: STAT (null) (--) ==> -1 (No such file or directory)
[2013-10-20 19:50:35.554563] I [server3_1-fops.c:1538:server_open_cbk] 0-vol-server: 18714687: OPEN <gfid:01c70ca0-1952-4e82-abee-a07205757d8e>
(01c70ca0-1952-4e82-abee-a07205757d8e) ==> -1 (No such file or directory)
[2013-10-20 19:50:35.555520] I [server3_1-fops.c:1538:server_open_cbk] 0-vol-server: 18714697: OPEN <gfid:01c70ca0-1952-4e82-abee-a07205757d8e>
(01c70ca0-1952-4e82-abee-a07205757d8e) ==> -1 (No such file or directory)
[2013-10-20 19:50:35.558292] I [server3_1-fops.c:1538:server_open_cbk] 0-vol-server: 18714712: OPEN (null) (--) ==> -1 (No such file or directory)
Solution:
Moved them to DEBUG log level if error number equlas to ENOENT else to ERROR log level.
It will help in decreasing the size of log files at INFO log level.
Change-Id: I23d74320c9c21bbce4805c20295556cc2cc0a8d8
BUG: 808073
Signed-off-by: Vikhyat Umrao <vumrao@redhat.com>
Reviewed-on: http://review.gluster.org/6241
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Add support for a new ZEROFILL fop. Zerofill writes zeroes to a file in
the specified range. This fop will be useful when a whole file needs to
be initialized with zero (could be useful for zero filled VM disk image
provisioning or during scrubbing of VM disk images).
Client/application can issue this FOP for zeroing out. Gluster server
will zero out required range of bytes ie server offloaded zeroing. In
the absence of this fop, client/application has to repetitively issue
write (zero) fop to the server, which is very inefficient method because
of the overheads involved in RPC calls and acknowledgements.
WRITESAME is a SCSI T10 command that takes a block of data as input and
writes the same data to other blocks and this write is handled
completely within the storage and hence is known as offload . Linux ,now
has support for SCSI WRITESAME command which is exposed to the user in
the form of BLKZEROOUT ioctl. BD Xlator can exploit BLKZEROOUT ioctl to
implement this fop. Thus zeroing out operations can be completely
offloaded to the storage device , making it highly efficient.
The fop takes two arguments offset and size. It zeroes out 'size' number
of bytes in an opened file starting from 'offset' position.
This patch adds zerofill support to the following areas:
- libglusterfs
- io-stats
- performance/md-cache,open-behind
- quota
- cluster/afr,dht,stripe
- rpc/xdr
- protocol/client,server
- io-threads
- marker
- storage/posix
- libgfapi
Client applications can exloit this fop by using glfs_zerofill introduced in
libgfapi.FUSE support to this fop has not been added as there is no system call
for this fop.
Changes from previous version 3:
* Removed redundant memory failure log messages
Changes from previous version 2:
* Rebased and fixed build error
Changes from previous version 1:
* Rebased for latest master
TODO :
* Add zerofill support to trace xlator
* Expose zerofill capability as part of gluster volume info
Here is a performance comparison of server offloaded zeofill vs zeroing
out using repeated writes.
[root@llmvm02 remote]# time ./offloaded aakash-test log 20
real 3m34.155s
user 0m0.018s
sys 0m0.040s
[root@llmvm02 remote]# time ./manually aakash-test log 20
real 4m23.043s
user 0m2.197s
sys 0m14.457s
[root@llmvm02 remote]# time ./offloaded aakash-test log 25;
real 4m28.363s
user 0m0.021s
sys 0m0.025s
[root@llmvm02 remote]# time ./manually aakash-test log 25
real 5m34.278s
user 0m2.957s
sys 0m18.808s
The argument log is a file which we want to set for logging purpose and
the third argument is size in GB .
As we can see there is a performance improvement of around 20% with this
fop.
Change-Id: I081159f5f7edde0ddb78169fb4c21c776ec91a18
BUG: 1028673
Signed-off-by: Aakash Lal Das <aakash@linux.vnet.ibm.com>
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-on: http://review.gluster.org/5327
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
remove server_ctx and locks_ctx from client_ctx directly and store as
into discrete entities in the scratch_ctx
hooking up dump will be in phase 3
BUG: 849630
Change-Id: I94cea328326db236cdfdf306cb381e4d58f58d4c
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/5678
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Sayan Saha has previously approved changing everthing to dual license
but somehow we have missed changing these files.
I am explicitly not updating the copyright dates as nothing else that's
copyrightable has changed in these files with the license change
Change-Id: Ia965eeb7168447d69e28e939ad95ee388873b6e4
BUG: 951549
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/6128
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
gettimeofday() returns the current wall clock time and timezone.
Using these functions in order to measure the passage of time
(how long an operation took) therefore seems like a no-brainer.
This time suffer's from some limitations:
a. They have a low resolution: “High-performance” timing by
definition, requires clock resolutions into the microseconds
or better.
b. They can jump forwards and backwards in time: Computer
clocks all tick at slightly different rates, which causes
the time to drift. Most systems have NTP enabled which
periodically adjusts the system clock to keep them in sync
with “actual” time. The adjustment can cause the clock to
suddenly jump forward (artificially inflating your timing
numbers) or jump backwards (causing your timing calculations
to go negative or hugely positive). In such cases timer
thread could go into an infinite loop.
From 'man gettimeofday':
----------
..
..
The time returned by gettimeofday() is affected by discontinuous
jumps in the system time (e.g., if the system administrator manually
changes the system time). If you need a monotonically increasing
clock, see clock_gettime(2).
..
..
----------
Rationale:
For calculating interval timing for Timer thread, all that’s
needed should be clock as a simple counter that increments
at a stable rate.
This is necessary to avoid the jumps which are caused by using
"wall time", this counter must be monotonic that can never
“tick” backwards, ever.
Change-Id: I701d31e71a85a73d21a6c5cd15583e7a5a645eeb
BUG: 1017993
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/6070
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
connection_cleanup creates a frame solely so that it can be copied.
But the process of copying creates a new frame, and there's nothing
apparently magic about the one being copied; we can eliminate an
unnecessary create and destroy.
Which in the grand scheme of things probably isn't the worst thing
we do, but it's low hanging fruit.
Change-Id: I4a23b84a53e086137b7d4167ad8c20b673d1ffe5
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/6019
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Problem:
When requests are received on a connection before setvolume
is done, creating frame from the requests fail because there is
no association of the transport with the conn(i.e. xl_private).
xl_private is set only on set_volume. In such cases error response
is not sent from server xlator to that request because of which
operations on mount point are hanging.
Fix:
Set actor return value to RPCSVC_ACTOR_ERROR so that response is sent
even in these cases.
Change-Id: I74d7bc6849fde6c734008d67c1f4bc9d9f7a84f9
BUG: 1006367
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/5892
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Prints, in the statedump, the information about the mount that
performed the inode/entry lk.
For the entrylks that are granted after a blocked state, the
blocked time is not printed. A patch for that will be sent
later.
Change-Id: Ib0c1ed21fa9328b435f96b590dd343f59814a08d
BUG: 915629
Signed-off-by: Anuradha Talur <atalur@redhat.com>
Reviewed-on: http://review.gluster.org/5712
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Implementation of client_t
The feature page for client_t is at
http://www.gluster.org/community/documentation/index.php/Planning34/client_t
In addition to adding libglusterfs/client_t.[ch] it also extracts/moves
the locktable functionality from xlators/protocol/server to libglusterfs,
where it is used; thus it may now be shared by other xlators too.
This patch is large as it is. Hooking up the state dump is left to do
in phase 2 of this patch set.
(N.B. this change/patch-set supercedes previous change 3689, which was
corrupted during a rebase. That change will be abandoned.)
BUG: 849630
Change-Id: I1433743190630a6d8119a72b81439c0c4c990340
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/3957
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
