| Commit message (Collapse) | Author | Age | Files | Lines |
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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>
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.. in the systems with non-trusted server
This new functionality can be useful in various cloud technologies.
It is implemented via a special encryption/crypt translator,which
works on the client side and performs encryption and authentication;
1. Class of supported algorithms
The crypt translator can support any atomic symmetric block cipher
algorithms (which require to pad plain/cipher text before performing
encryption/decryption transform (see glossary in atom.c for
definitions). In particular, it can support algorithms with the EOF
issue (which require to pad the end of file by extra-data).
Crypt translator performs translations
user -> (offset, size) -> (aligned-offset, padded-size) ->server
(and backward), and resolves individual FOPs (write(), truncate(),
etc) to read-modify-write sequences.
A volume can contain files encrypted by different algorithms of the
mentioned class. To change some option value just reconfigure the
volume.
Currently only one algorithm is supported: AES_XTS.
Example of algorithms, which can not be supported by the crypt
translator:
1. Asymmetric block cipher algorithms, which inflate data, e.g. RSA;
2. Symmetric block cipher algorithms with inline MACs for data
authentication.
2. Implementation notes.
a) Atomic algorithms
Since any process in a stackable file system manipulates with local
data (which can be obsoleted by local data of another process), any
atomic cipher algorithm without proper support can lead to non-POSIX
behavior. To resolve the "collisions" we introduce locks: before
performing FOP->read(), FOP->write(), etc. the process should first
lock the file.
b) Algorithms with EOF issue
Such algorithms require to pad the end of file with some extra-data.
Without proper support this will result in losing information about
real file size. Keeping a track of real file size is a responsibility
of the crypt translator. A special extended attribute with the name
"trusted.glusterfs.crypt.att.size" is used for this purpose. All files
contained in bricks of encrypted volume do have "padded" sizes.
3. Non-trusted servers and
Metadata authentication
We assume that server, where user's data is stored on is non-trusted.
It means that the server can be subjected to various attacks directed
to reveal user's encrypted personal data. We provide protection
against such attacks.
Every encrypted file has specific private attributes (cipher algorithm
id, atom size, etc), which are packed to a string (so-called "format
string") and stored as a special extended attribute with the name
"trusted.glusterfs.crypt.att.cfmt". We protect the string from
tampering. This protection is mandatory, hardcoded and is always on.
Without such protection various attacks (based on extending the scope
of per-file secret keys) are possible.
Our authentication method has been developed in tight collaboration
with Red Hat security team and is implemented as "metadata loader of
version 1" (see file metadata.c). This method is NIST-compliant and is
based on checking 8-byte per-hardlink MACs created(updated) by
FOP->create(), FOP->link(), FOP->unlink(), FOP->rename() by the
following unique entities:
. file (hardlink) name;
. verified file's object id (gfid).
Every time, before manipulating with a file, we check it's MACs at
FOP->open() time. Some FOPs don't require a file to be opened (e.g.
FOP->truncate()). In such cases the crypt translator opens the file
mandatory.
4. Generating keys
Unique per-file keys are derived by NIST-compliant methods from the
a) parent key;
b) unique verified object-id of the file (gfid);
Per-volume master key, provided by user at mount time is in the root
of this "tree of keys".
Those keys are used to:
1) encrypt/decrypt file data;
2) encrypt/decrypt file metadata;
3) create per-file and per-link MACs for metadata authentication.
5. Instructions
Getting started with crypt translator
Example:
1) Create a volume "myvol" and enable encryption:
# gluster volume create myvol pepelac:/vols/xvol
# gluster volume set myvol encryption on
2) Set location (absolute pathname) of your master key:
# gluster volume set myvol encryption.master-key /home/me/mykey
3) Set other options to override default options, if needed.
Start the volume.
4) On the client side make sure that the file /home/me/mykey exists
and contains proper per-volume master key (that is 256-bit AES
key). This key has to be in hex form, i.e. should be represented
by 64 symbols from the set {'0', ..., '9', 'a', ..., 'f'}.
The key should start at the beginning of the file. All symbols at
offsets >= 64 are ignored.
5) Mount the volume "myvol" on the client side:
# glusterfs --volfile-server=pepelac --volfile-id=myvol /mnt
After successful mount the file which contains master key may be
removed. NOTE: Keeping the master key between mount sessions is in
user's competence.
**********************************************************************
WARNING! Losing the master key will make content of all regular files
inaccessible. Mount with improper master key allows to access content
of directories: file names are not encrypted.
**********************************************************************
6. Options of crypt translator
1) "master-key": specifies location (absolute pathname) of the file
which contains per-volume master key. There is no default location
for master key.
2) "data-key-size": specifies size of per-file key for data encryption
Possible values:
. "256" default value
. "512"
3) "block-size": specifies atom size. Possible values:
. "512"
. "1024"
. "2048"
. "4096" default value;
7. Test cases
Any workload, which involves the following file operations:
->create();
->open();
->readv();
->writev();
->truncate();
->ftruncate();
->link();
->unlink();
->rename();
->readdirp().
8. TODOs:
1) Currently size of IOs issued by crypt translator is restricted
by block_size (4K by default). We can use larger IOs to improve
performance.
Change-Id: I2601fe95c5c4dc5b22308a53d0cbdc071d5e5cee
BUG: 1030058
Signed-off-by: Edward Shishkin <edward@redhat.com>
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4667
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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Current BD xlator (block backend) has a few limitations such as
* Creation of directories not supported
* Supports only single brick
* Does not use extended attributes (and client gfid) like posix xlator
* Creation of special files (symbolic links, device nodes etc) not
supported
Basic limitation of not allowing directory creation is blocking
oVirt/VDSM to consume BD xlator as part of Gluster domain since VDSM
creates multi-level directories when GlusterFS is used as storage
backend for storing VM images.
To overcome these limitations a new BD xlator with following
improvements is suggested.
* New hybrid BD xlator that handles both regular files and block device
files
* The volume will have both POSIX and BD bricks. Regular files are
created on POSIX bricks, block devices are created on the BD brick (VG)
* BD xlator leverages exiting POSIX xlator for most POSIX calls and
hence sits above the POSIX xlator
* Block device file is differentiated from regular file by an extended
attribute
* The xattr 'user.glusterfs.bd' (BD_XATTR) plays a role in mapping a
posix file to Logical Volume (LV).
* When a client sends a request to set BD_XATTR on a posix file, a new
LV is created and mapped to posix file. So every block device will
have a representative file in POSIX brick with 'user.glusterfs.bd'
(BD_XATTR) set.
* Here after all operations on this file results in LV related
operations.
For example opening a file that has BD_XATTR set results in opening
the LV block device, reading results in reading the corresponding LV
block device.
When BD xlator gets request to set BD_XATTR via setxattr call, it
creates a LV and information about this LV is placed in the xattr of the
posix file. xattr "user.glusterfs.bd" used to identify that posix file
is mapped to BD.
Usage:
Server side:
[root@host1 ~]# gluster volume create bdvol host1:/storage/vg1_info?vg1 host2:/storage/vg2_info?vg2
It creates a distributed gluster volume 'bdvol' with Volume Group vg1
using posix brick /storage/vg1_info in host1 and Volume Group vg2 using
/storage/vg2_info in host2.
[root@host1 ~]# gluster volume start bdvol
Client side:
[root@node ~]# mount -t glusterfs host1:/bdvol /media
[root@node ~]# touch /media/posix
It creates regular posix file 'posix' in either host1:/vg1 or host2:/vg2 brick
[root@node ~]# mkdir /media/image
[root@node ~]# touch /media/image/lv1
It also creates regular posix file 'lv1' in either host1:/vg1 or
host2:/vg2 brick
[root@node ~]# setfattr -n "user.glusterfs.bd" -v "lv" /media/image/lv1
[root@node ~]#
Above setxattr results in creating a new LV in corresponding brick's VG
and it sets 'user.glusterfs.bd' with value 'lv:<default-extent-size'
[root@node ~]# truncate -s5G /media/image/lv1
It results in resizig LV 'lv1'to 5G
New BD xlator code is placed in xlators/storage/bd directory.
Also add volume-uuid to the VG so that same VG can't be used for other
bricks/volumes. After deleting a gluster volume, one has to manually
remove the associated tag using vgchange <vg-name> --deltag
<trusted.glusterfs.volume-id:<volume-id>>
Changes from previous version V5:
* Removed support for delayed deleting of LVs
Changes from previous version V4:
* Consolidated the patches
* Removed usage of BD_XATTR_SIZE and consolidated it in BD_XATTR.
Changes from previous version V3:
* Added support in FUSE to support full/linked clone
* Added support to merge snapshots and provide information about origin
* bd_map xlator removed
* iatt structure used in inode_ctx. iatt is cached and updated during
fsync/flush
* aio support
* Type and capabilities of volume are exported through getxattr
Changes from version 2:
* Used inode_context for caching BD size and to check if loc/fd is BD or
not.
* Added GlusterFS server offloaded copy and snapshot through setfattr
FOP. As part of this libgfapi is modified.
* BD xlator supports stripe
* During unlinking if a LV file is already opened, its added to delete
list and bd_del_thread tries to delete from this list when a last
reference to that file is closed.
Changes from previous version:
* gfid is used as name of LV
* ? is used to specify VG name for creating BD volume in volume
create, add-brick. gluster volume create volname host:/path?vg
* open-behind issue is fixed
* A replicate brick can be added dynamically and LVs from source brick
are replicated to destination brick
* A distribute brick can be added dynamically and rebalance operation
distributes existing LVs/files to the new brick
* Thin provisioning support added.
* bd_map xlator support retained
* setfattr -n user.glusterfs.bd -v "lv" creates a regular LV and
setfattr -n user.glusterfs.bd -v "thin" creates thin LV
* Capability and backend information added to gluster volume info (and
--xml) so
that management tools can exploit BD xlator.
* tracing support for bd xlator added
TODO:
* Add support to display snapshots for a given LV
* Display posix filename for list-origin instead of gfid
Change-Id: I00d32dfbab3b7c806e0841515c86c3aa519332f2
BUG: 1028672
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-on: http://review.gluster.org/4809
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Remove bd_map xlator and CLI related changes.
Change-Id: If7086205df1907127c1a1fa4ba603f1c48421d09
BUG: 1028672
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-on: http://review.gluster.org/5747
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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* When a writev call occurs, the client compresses the data before
sending it to server. On the server, compressed data is decompressed.
Similarly, when a readv call occurs, the server compresses the data
before sending it to client. On the client, the compressed data is
decompressed. Thus the amount of data sent over the wire is minimized.
* Compression/Decompression is done using Zlib library.
* During normal operation, this is the format of data sent over wire :
<compressed-data> + trailer(8)
The trailer contains the CRC32 checksum and length of original
uncompressed data. This is used for validation.
HOW TO USE
----------
Turning on compression xlator:
gluster volume set <vol_name> compress on
Configurable options:
gluster volume set <vol_name> compress.compression-level 8
gluster volume set <vol_name> compress.min-size 50
Change-Id: Ib7a66b6f1f70fe002b7c513588cdf75c69370805
BUG: 923540
Original-author : Venky Shankar <vshankar@redhat.com>
Signed-off-by: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Prashanth Pai <nullpai@gmail.com>
Signed-off-by: Prashanth Pai <ppai@redhat.com>
Reviewed-on: http://review.gluster.org/3251
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I1442bc1d115a9c6ecf139a0ca9da74d07e0fe928
BUG: 1003855
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/5764
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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This patch adds support for internals snapshots using QCOW2 and
general framework for external snapshots (next patch) with
QCOW2 and QED.
For internal snapshots, the file must be "initialized" or
"formatted" into QCOW2 format, and specify a file size.
Snapshots can be created, deleted, and applied ("goto").
e.g:
// Format and Initialize
sh# setfattr -n trusted.glusterfs.block-format -v qcow2:10GB /mnt/imgfile
sh# ls -l /mnt/imgfile
-rw-r--r-- 1 root root 10G Jul 18 21:20 imgfile
// Create a snapshot
sh# setfattr -n trusted.glusterfs.block-snapshot-create -v name1 imgfile
// Apply a snapshot
sh# setfattr -n trusted.gluterfs.block-snapshot-goto -v name1 imgfile
Change-Id: If993e057a9455967ba3fa9dcabb7f74b8b2cf4c3
BUG: 986775
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5367
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
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Change-Id: Ic3c43291e0e1ead0d89c0436e8d70aa5dee2f543
BUG: 924488
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/5391
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Instead of using the cluster op-version, volume op-version is used to
enable open-behind during volgen. For doing this, the volume op-versions
are updated before regenerating the volfiles.
Change-Id: I675bb549bf7c7c0279030dca698fb530781addc6
BUG: 990830
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/5385
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This is the initial version of the Changelog Translator.
What is it
-----------
Goal is to capture changes performed on a GlusterFS volume.
The translator needs to be loaded on the server (bricks) and
captures changes in a plain text file inside a configured
directory path (controlled by "changelog-dir", should be
somewhere in <export>/.glusterfs/changelog by default).
Changes are classified into 3 types:
- Data: : TYPE-I
- Metadata : TYPE-II
- Entry : TYPE-III
Changelog file is rolled over after a certain time interval
(defauls to 60 seconds) after which a changelog is started.
The thing to be noted here is that for a time interval
(time slice) multiple changes for an inode are recorded only
once (ie. say for 100+ writes on an inode that happens within
the time slice has only a single corresponding entry in the
changelog file). That way we do not bloat up the changelog
and also save lots of writes.
Changelog Format
-----------------
TYPE-I and TYPE-II changes have the gfid on the entity on
which the operation happened. TYPE-III being a entry op
requires the parent gfid and the basename. Changelog format
has been kept to a minimal and it's upto the consumers to
do the heavy loading of figuring out deletes, renames etc..
A single changelog file records all three types of changes,
with each change starting with an identifier ("D": DATA,
"M": METADATA and "E": ENTRY). Option is provided for the
encoding type (See TUNABLES).
Consumers
----------
The only consumer as of today would be geo-replication, although
backup utilities, self-heal, bit-rot detection could be possible
consumers in the future.
CLI
----
By default, change-logging is disabled (the translator is present
in the server graph but does nothing). When enabled (via cli) each
brick starts to log the changes. There are a set of tunable that
can be used to change the translators behaviour:
- enable/disable changelog (disabled by default)
gluster volume set <volume> changelog {on|off}
- set the logging directory (<brick>/.glusterfs/changelogs is the
default)
gluster volume set <volume> changelog-dir /path/to/dir
- select encoding type (binary (default) or ascii)
gluster volume set <volume> encoding {binary|ascii}
- change the rollover time for the logs (60 secs by default)
gluster volume set <volume> rollover-time <secs>
- when secs > 0, changelog file is not open()'d with O_SYNC flag
- and fsync is trigerred periodically every <secs> seconds.
gluster volume set <volume> fsync-interval <secs>
features/changelog: changelog consumer library (libgfchangelog)
A shared library is provided for the consumer of the changelogs
for easy acess via APIs. Application can link against this library
and request for changelog updates. Conversion of binary logs to
human-readable ascii format is also taken care by the library which
keeps a copy of the changelog in application provided working
directory.
Change-Id: I75575fb7f1c53d2bec3dba1a329ea7bb3c628497
BUG: 847839
Original Author: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/5127
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Duplicate request cache provides a mechanism for detecting
duplicate rpc requests from clients. DRC caches replies
and on duplicate requests, sends the cached reply instead of
re-processing the request.
Change-Id: I3d62a6c4aa86c92bf61f1038ca62a1a46bf1c303
BUG: 847624
Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com>
Reviewed-on: http://review.gluster.org/4049
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Bug(967445): The default value for all nfs options is displayed as "(null)"
Fix: Changed nfs options to show default value.
Change-Id: I3b1f27439c19a6655f7dcc7891df40706db9e474
BUG: 967445
Signed-off-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-on: http://review.gluster.org/5098
Reviewed-by: Santosh Pradhan <spradhan@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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Volume op-versions calculations now take into account if an option,
a. enables/disables an xlator, or
b. is a boolean option.
This prevents op-versions from being updated when a feature is disabled.
Also, correctly close the dynamically loaded xlators in
xlator_volopt_dynload() and prevent leaks.
Change-Id: I895ddeeec6f6a33e509325f0ce6f01b7aad3cf5c
BUG: 954256
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/4952
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This patch enables the open-behind by default only when the op-version
allows it. Also the volume op-version calculations take account of this
enablement.
Change-Id: Idf7a3c274ec4828aafc815cdd1df829ecb853354
BUG: 954256
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/4866
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: Ib78963c1f43a66dab50b443742979c7c4e4cbc23
BUG: 958790
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4940
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Each volume is now associated with two op-versions,
* op_version - the op-version of the highest op-versioned feature enabled
* client_op_version - the op-version of the highest op-versioned feature
enabled which affects the clients only.
These two op-versions are generated dynamically and kept updated during
runtime. Glusterd now uses the respective volumes' client-op-version during
getspec requests.
To achieve the above a new field in the vme table is introduced,
client_option, this boolean field tells if the option is a client side
option.
Change-Id: I12c83b1dd29ab506026efd50d448cebbcee53c27
BUG: 907311
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/4584
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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PROBLEM:
performance.nfs.* option values (which are of type boolean) are
not validated during the stage phase of 'volume set'.
The result - nfs graph generation fails during commit phase,
AFTER the option and its (invalid) value have been placed in
volinfo->dict.
CAUSE:
nfsperfxl_option_handler() - the function that validates the values of
performance.nfs.* options - never receives the (key,value) pair that
needs to be set, for validation during 'volume set' stage.
FIX:
In build_nfs_graph(), copy the (mod_)dict containing the (option,value)
parameters into set_dict before attempting to build the client graph
for the volume on which the operation is being performed.
Of course, an easier way out would be to simply do a 'volume reset' and
pretend nothing wrong happened!
Change-Id: I56b17d0239d58a9e0b7798933a3c8451e2675b69
BUG: 949930
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4814
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Today there is a non-obvious dependence of eager-locking on
write-behind. The reason is that eager-locking works as long
as the inheriting transaction has no overlaps with any of the
transactions already in progress. While write-behind provides
non-overlapping writes as a side-effect most of times (and only
guarantees it when strict-write-ordering option is enabled,
which is not on by default) eager-lock needs the behavior
as a guarantee. This is leading to complex and unwanted checks
for the presence of write-behind in the graph, for the simple
task of checking for overlaps.
This patch removes the interdependence between eager-locking
and write-behind by making eager-locking do its own overlap checks
with in-progress writes.
Change-Id: Iccba1185aeb5f1e7f060089c895a62840787133f
BUG: 912581
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4782
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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Brick processes listen on all the interfaces on a given port.
When multiple glusterds run on one machine, glusterd assumes
that it 'owns' the ports on that machine. This can lead to the
different glusterd instances to step on each other's ports.
This fix ensures that brick processes listen only on the its
host IP when glusterd has bind-address option set.
Change-Id: I4c1b05643c64d3098bf56e977e768e611ffce0f5
BUG: 913662
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/4580
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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Change-Id: Ieed9194768e434e54ea7d3d42b705eb600445cf4
BUG: 812356
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4543
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: Id5c23a0cedf695eb9c25bc793cea3cf0a13f61c4
BUG: 764890
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4544
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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In volopt_map_entry table, added option description field, and
option validation function pointer.
Change-Id: I21c6bccd175970592b470ce3ef3f418cb99a5a43
BUG: 903478
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/4535
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: I893f41bd505fc0e02aec1e71f7a6209759b24a89
BUG: 903478
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/4517
Tested-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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This is functionality peeled out of quick-read into a separate
translator.
Fops which modify the file (where it is required to perform the
operation on the true fd) will trigger and wait for the backend
open to succeed and use that fd.
Fops like fstat() readv() etc. will use anonymous FD (configurable)
when original fd is unopened at the backend.
Change-Id: Id9847fdbfdc82c1c8e956339156b6572539c1876
BUG: 846240
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4406
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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Making log changes involving two commands as they both share sections
of code (like the part where the volume metadata is cleaned up in vol
delete in case of success; and in vol create in case of failure).
* Most of the changes are of the 's/THIS/this' kind.
* Changed some of the log messages to give as much information as
available in case of failure.
* Changed log levels in some of the log messages.
Change-Id: I10242511fe9400a07ab04717464d748d9172dd85
BUG: 812356
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4462
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: I13e3699bd58d53896ae54e1bfafb3cd1c9580c7c
BUG: 905307
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/4443
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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md-cache currently transforms all readdir fops into readdirp fops.
This patch creates the 'force-readdirp' configuration flag to
provide control over this behavior. force-readdirp is enabled by
default to maintain current default behavior.
BUG: 903175
Change-Id: Idd70926dec7c271204bdfb11fb052e56d0a39420
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/4440
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: I0db00b7334bb9707ab48bd661ac03a3ad818d6e4
BUG: 893458
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/4393
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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* Make use of event-history in debug/trace xlator to dump the recent fops,
when statedump is given. trace xlator saves the fop it received along
with the time in the event-history and upon statedump signal, dumps its
history. The size of the event-history can be given as a xlator option.
* Make changes in trace to take logging into log-file or logging to
history as an option. By default both are off.
Change-Id: I12baee5805c6efb55735cead4e2093fb94d7a6a0
BUG: 797171
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/4088
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: I705d814f63094279532806db0e1e0fc2815fc107
BUG: 884328
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/4306
Reviewed-by: Kaushal M <kaushal@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: I693cc96c1dc7dc560c3c25698f08b846e8a48fca
BUG: 839595
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/4291
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Many people have asked for behavior like the old NUFA, which builds and
seems to run but was previously impossible to enable/configure in a
standard way. This change allows NUFA to be enabled instead of DHT from
the command line, with automatic selection of the local subvolume on each
host.
Change-Id: I0065938db3922361fd450a6c1919a4cbbf6f202e
BUG: 882278
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/4234
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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In a replica pair unlike files, directories may not have their
content in same order, so readdir for same (offset, size) may
not give same entries on both the sobvolumes of replica pair.
Switching over from one subvolume to another may not be a good
idea sometimes. It may lead to duplicate entries or fewer entries
or both. This patch provides a way to disable readdir-failover
so that applications like rebalance can retry if they want to.
Change-Id: I2b23eb224a2e84016a561362932613ac824c11a0
BUG: 859387
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/4159
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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A new parameter type is added to volume create command. To use BD xlator
one has to specify following argument in addition to normal volume
create
device vg brick:<VG-NAME>
for example,
$ gluster volume create lv_volume device vg host:/vg1
Changes from previous version
* New type 'backend' added to volinfo structure to differentiate between
posix and bd xlator
* Most of the volume related commands are updated to handle BD xlator,
like add-brick, heal-brick etc refuse to work when volume is BD xlator
type
* Only one VG (ie brick) can be specified for BD xlator during volume
creation
* volume info shows VG info if its of type BD xlator
BUG: 805138
Change-Id: I0ff90aca04840c71f364fabb0ab43ce33f9278ce
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-on: http://review.gluster.org/3717
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>
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with the option, the idea is all client-side caching will be disabled,
where as on server side process, the fd will be treated as a regular
fd, thus helping the performance better.
"gluster volume set <VOLNAME> remote-dio enable" would set
this option in client protocol volumes.
Change-Id: Id2255a167137f8fee20849513e3011274dc829b4
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 845213
Reviewed-on: http://review.gluster.org/4206
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Feature-page:
http://www.gluster.org/community/documentation/index.php/Features/Server-quorum
Change-Id: I747b222519e71022462343d2c1bcd3626e1f9c86
BUG: 839595
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.org/3811
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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The 'least-rate-limit' io-threads translator option enables
throttling of least priority operations. This is initially intended
as a debug/diagnostic tool for users who might experience
overloaded servers via background activity (i.e., self-heal).
least-rate-limit defines the maximum number of least priority
operations the io-threads translator will dequeue in one second.
If the specified rate limit is met, the worker threads sleep for
the minimal amount of time before the next least priority operation
becomes available (or until a new request arrives).
The requests/second metric is generic and relative to a variety of
factors involved with a background operation (server, storage,
etc.). The most recent measured rate ("cached least rate") is added
to the io-threads state dump content (kill -USR1) to serve as a
reference point to throttle background activity under particular
conditions.
Change-Id: I80f2282992137d57b1becaa5c6ae3858c066862a
BUG: 853680
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/4119
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Change-Id: Ifa48cb2c26dbbabe619e1bfbd41d9ecdce1150aa
BUG: 814534
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/4155
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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An op-version check is performed for the given keys during stage. The commit
phase moves the cluster op-version to the required version if needed.
Change-Id: Id5c387094dbec723df736b2ecdc49ff93c179e0e
BUG: 814534
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/3780
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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'gluster volume set <VOL> transport [<tcp>|<rdma>|<tcp,rdma>]'
is the command to change the transport type
* also moved 'memory-accounting' volume set key into VME table
* fixed a crash in 'volume set help' if the vme->type was wrong
Change-Id: Ic4f7ef62277a22b561b05e94c1b1bf19a51d2095
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 797001
Reviewed-on: http://review.gluster.org/4008
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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Rules of causal ordering implemented:
- If request A arrives after the acknowledgement (to the app,
i.e, STACK_UNWIND) of another request B, then request B is
said to have 'caused' request A.
- (corollary) Two requests, which at any point of time, are
unacknowledged simultaneously in the system can never 'cause'
each other (wb_inode->gen is based on this)
- If request A is caused by request B, AND request A's region
has an overlap with request B's region, then then the fulfillment
of request A is guaranteed to happen after the fulfillment of B.
- FD of origin is not considered for the determination of causal
ordering.
- Append operation's region is considered the whole file.
Other cleanup:
- wb_file_t not required any more.
- wb_local_t not required any more.
- O_RDONLY fd's operations now go through the queue to make sure
writes in the requested region get fulfilled before getting
processed.
- O_SYNC fd's operations now go through the queue to make sure
previously acknowledged writes on the file (via other fds) are
fulfilled before getting processed.
- Option to not honor O_SYNC is now removed.
- Option to ignore O_DIRECT is added (useful when running a VM and the
drive appears with NCQ/TCQ or WCE=1 for the guest.)
- Option to disable_first_nbytes is removed (as the cause of the
bug which required this was diagnosed to be missing TCP_NODELAY.)
- General cleanup and better conformance to coding style and convention.
Change-Id: Ib44fb72da3727246b4a85174cb568c2f0231f6de
BUG: 857673
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/3947
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
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Problem:
Entry self-heal does lookups on all the entries that are read
in readdir. More the size of readdir more number of lookups happen
in parallel. It is observed that it leads to HUGE cpu spikes
rendering everything else on the system unusable.
Fix:
Provided the option self-heal-readdir-size to configure the size.
Default value is at 1KB.
Tests:
Checked that the readdirs are happening with the configured value
in entry-self-heal.
Change-Id: Icaa937ad88857e6f9a12375b1e7f6a49192bc8b1
BUG: 860895
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.org/4002
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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CLI
---
gluster volume set VOLNAME owner-uid uid
gluster volume set VOLNAME owner-gid gid
where uid,gid are the owner's user id and group id respectively that
would be set on the root of all brick (backend) fs.
TODO: uid/gid should not be -1. Today we don't validate that in CLI.
Change-Id: Ib6a2fb5e404691c5fe105a89faaeff3e1ab72e91
BUG: 853842
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/3891
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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License message changed for server-side, dual license GPLV2 and LGPLv3+.
Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09
BUG: 852318
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/3940
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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* ie, don't dereference dict_t pointer, instead use APIs everywhere
* other than dict_t only 'data_t' should be the valid export from dict.h
* added 'dict_foreach_fnmatch()' API
* changed dict_lookup() to use data_t, instead of data_pair_t
Change-Id: I400bb0dd55519a7c5d2a107e67c8e7a7207228dc
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 850917
Reviewed-on: http://review.gluster.org/3829
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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In light of the comments received on the following patch,
http://review.gluster.com/#change,3860
this change knocks off the pattern match lookup logic that once
enabled wildcard entries to be used for volume options.
Here's a bit on the history of the macro "pattern_match_options",
coming straight from the author's(Csaba) mouth:
"So, the history of pattern_match_options is as follows:
i. In the volume option table we used to be able to have wildcard
entries like auth.addr.*.allow and there was a special lookup logic
to support that, cf.
http://github.com/gluster/glusterfs/commit/v3.1.0qa40~19
ii. However, later on we stopped using this mechanism:
http://github.com/gluster/glusterfs/commit/v3.1.0qa40~9
iii. Later on we added the code that allowed the usage of option
names both in fully qualified (<domain>.<specifier>) and short
(<specifier>)forms:
http://github.com/gluster/glusterfs/commit/v3.1.0qa41~10.
At this point, maintaining support for wildcard table entries became
more difficult (~ error prone), so that part was placed under the macro
pattern_match_options and -- given that we made no use of the feature
-- a simple direct lookup logic was introduced. I chose to keep the
pattern matching logic in the code because I was not really sure about
the future of it and thought we might want wildcarded table entries
later. ..."
Change-Id: I261735143891931e8150c36fe5b33ae74b1c663d
BUG: 847846
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/3893
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Csaba Henk <csaba@redhat.com>
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The license message is changed to
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4
BUG: 852318
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/3858
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Bring in option which is supported by posix xlator
to filter out directory's entries from being returned.
DHT would now request non-first subvols to filter out
directory entries.
dht xlator-option readdir-optimize will enable this
optimization
Change-Id: I35224bc81c9657f54f952efac02790276c35ded5
BUG: 838199
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.com/3772
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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as glusterfs_'ctx'_t is used as reference in many places, it is
important to set it right. In many places, xl->ctx is assumed to
be present, hence it has to be set right.
Change-Id: I37d767f384edb1819277c4ecee97dd94108aedff
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 845715
Reviewed-on: http://review.gluster.com/3779
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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- Retained apparent redundant checks in stage, commit phase of set
volume for the help options for backward compatibility
Change-Id: Iaefe3805d6b5eeeced2e7e4870830edf3e61dc87
BUG: 844696
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.com/3761
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
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