summaryrefslogtreecommitdiffstats
path: root/libglusterfs/src/glusterfs.h
Commit message (Collapse)AuthorAgeFilesLines
* Adding ChangeTimeRecorder(CTR) Xlator to GlusterFSJoseph Fernandes2015-03-191-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ********************************************************************** ChangeTimeRecorder(CTR) Xlator | ********************************************************************** ChangeTimeRecorder(CTR) is server side xlator(translator) which sits just above posix xlator. The main role of this xlator is to record the access/write patterns on a file residing the brick. It records the read(only data) and write(data and metadata) times and also count on how many times a file is read or written. This xlator also captures the hard links to a file(as its required by data tiering to move files). CTR Xlator is the consumer of libgfdb. To Enable/Disable CTR Xlator: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ gluster volume set <volume-name> features.ctr-enabled {on/off} To Enable/Disable Frequency Counter Recording in CTR Xlator: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ gluster volume set <volume-name> features.record-counters {on/off} Change-Id: I5d3cf056af61ac8e3f8250321a27cb240a214ac2 BUG: 1194753 Signed-off-by: Joseph Fernandes <josferna@redhat.com> Reviewed-on: http://review.gluster.org/9935 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterfsd: add "print-netgroups" and "print-exports" commandNiels de Vos2015-03-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | NFS now has the ability to use a separate file for "netgroups" and "exports". An administrator should have the ability to check the validity of the files before applying the configuration. The "glusterfsd" command now has the following additional arguments that can be used to check the configuration: --print-netgroups: Validate the netgroups file and print it out --print-exports: Validate the exports file and print it out BUG: 1143880 Change-Id: I24c40d50110d49d8290f9fd916742f7e4d0df85f URL: http://www.gluster.org/community/documentation/index.php/Features/Exports_Netgroups_Authentication Original-author: Shreyas Siravara <shreyas.siravara@gmail.com> CC: Richard Wareing <rwareing@fb.com> CC: Jiffin Tony Thottan <jthottan@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9365 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* features/quota : Introducing inode quotavmallika2015-03-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ========================================================================== Inode quota ========================================================================== = Currently, the only way to retrieve the number of files/objects in a = = directory or volume is to do a crawl of the entire directory/volume. = = This is expensive and is not scalable. = = = = The proposed mechanism will provide an easier alternative to determine = = the count of files/objects in a directory or volume. = = = = The new mechanism proposes to store count of objects/files as part of = = an extended attribute of a directory. Each directory's extended = = attribute value will indicate the number of files/objects present = = in a tree with the directory being considered as the root of the tree. = = = = The count value can be accessed by performing a getxattr(). = = Cluster translators like afr, dht and stripe will perform aggregation = = of count values from various bricks when getxattr() happens on the key = = associated with file/object count. = A new interface is introduced: ------------------------------ limit-objects : limit the number of inodes at directory level list-objects : list the directories where the limit is set remove-objects : remove the limit from the directory ========================================================================== CLI COMMAND: gluster volume quota <volname> limit-objects <path> <number> [<percent>] * <number> is a hard-limit for number of objects limitation for path "<path>" If hard-limit is exceeded, creation of file/directory is no longer permitted. * <percent> is a soft-limit for number of objects creation for path "<path>" If soft-limit is exceeded, a warning is issued for each creation. CLI COMMAND: gluster volume quota <volname> remove-objects [path] ========================================================================== CLI COMMAND: gluster volume quota <volname> list-objects [path] ... Sample output: ------------------ Path Hard-limit Soft-limit Used Available Soft-limit exceeded? Hard-limit exceeded? ------------------------------------------------------------------------ -------------------------------------- /dir 10 80% 10 0 Yes Yes ========================================================================== [root@snapshot-28 dir]# ls a b file11 file12 file13 file14 file15 file16 file17 [root@snapshot-28 dir]# touch a1 touch: cannot touch `a1': Disk quota exceeded * Nine files are created in directory "dir" and directory is included in * the count too. Hence the limit "10" is reached and further file creation fails ========================================================================== Note: We have also done some re-factoring in cli for volume name validation. New function cli_validate_volname is created ========================================================================== Change-Id: I1823497de4f790a2a20ebb1770293472ea33ee2b BUG: 1190108 Signed-off-by: Sachin Pandit <spandit@redhat.com> Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/9769 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: Change the subvolume encoding in d_off to be a "global"Dan Lambright2015-03-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | position in the graph rather than relative (local) to a particular translator. Encoding the volume in this way allows a single translator to manage which brick is currently being scanned for directory entries. Using a single translator minimizes allocated bits in the d_off. It also allows multiple DHT translators in the same graph to have a common frame of reference (the graph position) for which brick is being read. Multiple DHT translators are needed for the Tiering feature. The fix builds off a previous change (9332) which removed subvolume encoding from AFR. The fix makes an equivalent change to the EC translator. More background can be found in fix 9332 and gluster-dev discussions [1]. DHT and AFR/EC are responsibile (as before) for choosing which brick to enumerate directory entries in over the readdir lifecycle. The client translator receiving the readdir fop encodes the dht_t. It is referred to as the "leaf node" in the graph and corresponds to the brick being scanned. When DHT decodes the d_off, it translates the leaf node to a local subvolume, which represents the next node in the graph leading to the brick. Tracking of leaf nodes is done in common utility functions. Leaf nodes counts and positional information are updated on a graph switch. [1] www.gluster.org/pipermail/gluster-devel/2015-January/043592.html Change-Id: Iaf0ea86d7046b1ceadbad69d88707b243077ebc8 BUG: 1190734 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/9688 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* Quota/marker : Support for inode quotavmallika2015-03-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the only way to retrieve the number of files/objects in a directory or volume is to do a crawl of the entire directory/volume. This is expensive and is not scalable. The new mechanism proposes to store count of objects/files as part of an extended attribute of a directory. Each directory's extended attribute value will indicate the number of files/objects present in a tree with the directory being considered as the root of the tree. Currently file usage is accounted in marker by doing multiple FOPs like setting and getting xattrs. Doing this with STACK WIND and UNWIND can be harder to debug as involves multiple callbacks. In this code we are replacing current mechanism with syncop approach as syncop code is much simpler to follow and help us implement inode quota in an organized way. Change-Id: Ibf366fbe07037284e89a241ddaff7750fc8771b4 BUG: 1188636 Signed-off-by: vmallika <vmallika@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Reviewed-on: http://review.gluster.org/9567 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* every/where: add GF_FOP_IPC for inter-translator communicationJeff Darcy2015-03-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several features - e.g. encryption, erasure codes, or NSR - involve multiple cooperating translators which sometimes need a "private" means of communication amongst themselves. Historically we've used virtual or synthetic xattrs, but that's not very elegant and clutters up the getxattr/setxattr path which must also handle real xattr requests. This new fop should address that. The only argument is an int32_t "op" which should be recognized by the target translator. It is recommended that translators using these feature follow some convention regarding the ops that they define, to avoid conflicts. Using a hash of the target translator's type string as a base for a series of ops would probably be a good start. Any other information can be passed in both directions using xdata. The default behavior for this fop, as with any other, is to pass through to FIRST_CHILD. That makes use of this fop "transparent" to other translators that were written before it existed, but it also means that it only really works with pass-through translators. If a routing translator (such as DHT) or a fan-out translator (such as AFR) is involved, the IPC might not reach its intended destination unless those translators are modified to forward IPC fops along all paths. If an IPC gets all the way to storage/posix it is considered an error, much like an uncaught exception. We don't actually *do* anything in that case, but we do log it send back an EOPNOTSUPP error. This makes the "unrecognized opcode" condition distinguishable from the "no IPC support" condition (which would yield an RPC error instead) so clients can probe for the presence of a handler for their own favorite opcode and either use that or use old-school xattrs depending on the result. BUG: 1158628 Signed-off-by: Venky Shankar <vshankar@redhat.com> Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Change-Id: I84af1b17babe5b30ec03ecf027ae37d09b873968 Reviewed-on: http://review.gluster.org/8812 Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Upcall: New xlator to store various states and send cbk eventsSoumya Koduri2015-03-171-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | Framework on the server-side, to handle certain state of the files accessed and send notifications to the clients connected. A generic and extensible framework, used to maintain states in the glusterfsd process for each of the files accessed (including the clients info doing the fops) and send notifications to the respective glusterfs clients incase of any change in that state. This patch handles "Inode Update/Invalidation" upcall event. Feature page: URL: http://www.gluster.org/community/documentation/index.php/Features/Upcall-infrastructure Below link has a writeup which explains the code changes done - URL: https://soumyakoduri.wordpress.com/2015/02/25/glusterfs-understanding-upcall-infrastructure-and-cache-invalidation-support/ Change-Id: Ie3d724be9a3419fcf18901a753e8ec2df2ac802f BUG: 1200262 Signed-off-by: Soumya Koduri <skoduri@redhat.com> Reviewed-on: http://review.gluster.org/9535 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* libglusterfs: Add functions for xlator and graph cleanup.Poornima G2015-03-021-0/+2
| | | | | | | | | | Change-Id: If341e3c0a559aa5bbca9c1263a241c6592c59706 BUG: 1093594 Signed-off-by: Poornima G <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/9696 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr : provide split-brain info by using getxattrAnuradha2015-02-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | This patch is one part to enable users analyze and resolve split-brain. Problem : To know if a file is in data/metadata split-brain Solution : Performing "getfattr -n afr.split-brain-status <path-to-file>" from the mount provides this information. Also provides the list of afr children to analyse to get more information. Change-Id: I4d9b429794759a906371416cb84c84a212e2c7b9 BUG: 1191396 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9633 Reviewed-by: Ravishankar N <ravishankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* protocol/client: sequence CHILD_UP, CHILD_DOWN etc notificationsKrishnan Parthasarathi2015-02-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ... from all bricks in the volume This patch is important in the context of MT epoll. With MT epoll, notification events from client xlators could reach cluster xlators like afr, dht, ec, stripe etc. in different orders. For e.g, In a distributed replicate volume of 2 bricks, namely Brick1 and Brick2, the following network events are observed by a mount process. - connection to Brick1 is broken. - connection to Brick1 has been restored. - connection to Brick2 is broken. - connection to Brick2 has been restored. Without establishing a total ordering of events, we can't guarantee that cluster xlators like afr, dht perceive them in the same order. While we would expect afr (say) to perceive it as only one of Brick1 and Brick2 going down at any given time, it is possible for the notification of Brick2 going offline to race with the notification of Brick1 coming back online. Change-Id: I78f5a52bfb05593335d0e9ad53ebfff98995593d BUG: 1104462 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9591 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* epoll: Adding the ability to configure epoll threadsShyam2015-02-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the ability to configure the number of event threads for various gluster services. Currently with the multi thread epoll patch, it is possible to have more than one thread waiting on socket activity and processing the same. This thread count is currently static, which this commit makes dynamic. The current services which use IO path, i.e brick processes, any client process (nfs, FUSE, gfapi, heal, rebalance, etc.a), gain 2 set parameters to control the number of threads that are processing events. These settings are, - client.event-threads <n> - server.event-threads <n> The client setting affects the client graph consumers, and the server setting affects the brick processes. These are processed and inited/reconfigured using the client/server protocol xlators. Other services (say glusterd) would need to extend similar configuration settings to take advantage of multi threaded event processing. At present glusterd is not enabled with this commit, as it does not stand to gain from this multi-threading (as I understand it). Change-Id: Id8422fc57a9f95a135158eb6477ccf9d3c9ea4d9 BUG: 1104462 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/9488 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* uss: disable memory accounting for the snapshot daemonRaghavendra Bhat2015-01-281-0/+1
| | | | | | | | | | | | | | | | | | * Bring in option to disable memory accounting for a glusterfs process This reverses the changes done by the commit 7fba3a88f1ced610eca0c23516a1e720d75160cd. * Change the key from "memory-accounting" to "no-memory-accounting", as by default all the glusterfs process enable memory accounting now. So to disable memory accounting for some process, "no-mem-accounting" argument has to be passed. Change-Id: I39c7cefb0fe764ea3e48f4e73e1305b084c5f497 BUG: 1184366 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/9469 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: split-brain resolution CLIRavishankar N2015-01-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the AFR heal command to include automated split-brain resolution. This patch [3/3] is the final patch for afr automated split-brain resolution implementation. "gluster volume heal <VOLNAME> [full | statistics [heal-count [replica <HOSTNAME:BRICKNAME>]] |info [healed | heal-failed | split-brain]| split-brain {bigger-file <FILE> |source-brick <HOSTNAME:BRICKNAME> [<FILE>]}]" The new additions being: 1.gluster volume heal <VOLNAME> split-brain bigger-file <FILE> Locates the replica containing the FILE, selects bigger-file as source and completes heal. 2.gluster volume heal <VOLNAME> split-brain source-brick <HOSTNAME:BRICKNAME> <FILE> Selects <FILE> present in <HOSTNAME:BRICKNAME> as source and completes heal. 3.gluster volume heal <VOLNAME> split-brain <HOSTNAME:BRICKNAME> Selects all split-brained files in <HOSTNAME:BRICKNAME> as source and completes heal. Note: <FILE> can be either the full file name as seen from the root of the volume (or) the gfid-string representation of the file, which sometimes gets displayed in the heal info command's output. Entry/gfid split-brain resolution is not supported. Example can be found in the test case. Change-Id: I4649733922d406f14f28ee9033a5cb627b9538b3 BUG: 1136769 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9377 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* feature/changelog: Virtual xattr to trigger explicit sync in geo-rep.Kotresh HR2014-12-291-0/+1
| | | | | | | | | | | | | | | | | | | A virtual xattr "glusterfs.geo-rep.trigger-sync" is provided in glusterfs through changelog translator. Geo-rep triggers a explicit data sync on setting this xattr on a file. Changelog captures a DATA entry on file's gfid on setting this virtual xattr on a file. This is supported only for files. It doesn't support directories. Usage: setfattr -n glusterfs.geo-rep.trigger-sync <file-path> Change-Id: Ia689326ac2dcb31035ffbecad2c548eda4eb9245 BUG: 1176934 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9337 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* cluster/afr : Change in volume heal info commandAnuradha2014-12-231-0/+2
| | | | | | | | | | | | | | | | gluster volume heal <volname> info command will now also display if the files listed (in the output of the command) are in split-brain or possibly being healed. This patch also fixes build warning that occurs. Change-Id: I1fc92e62137f23b2b9ddf6e05819cee6230741d1 BUG: 1163804 Signed-off-by: Anuradha <atalur@redhat.com> Reviewed-on: http://review.gluster.org/9119 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* glusterd: Add last successful glusterd lock backtraceKrishnan Parthasarathi2014-09-221-0/+5
| | | | | | | | | | | | | | Also, moved the backtrace fetching logic to a separate function. Modified the backtrace fetching logic able to work under memory pressure conditions. Change-Id: Ie38bea425a085770f41831314aeda95595177ece BUG: 1138503 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/8584 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* build: make GLUSTERD_WORKDIR rely on localstatedirHarshavardhana2014-08-071-2/+6
| | | | | | | | | | | | | | | | | | | | | | - Break-way from '/var/lib/glusterd' hard-coded previously, instead rely on 'configure' value from 'localstatedir' - Provide 's/lib/db' as default working directory for gluster management daemon for BSD and Darwin based installations - loff_t is really off_t on Darwin - fix-off the warnings generated by clang on FreeBSD/Darwin - Now 'tests/*' use GLUSTERD_WORKDIR a common variable for all platforms. - Define proper environment for running tests, define correct PATH and LD_LIBRARY_PATH when running tests, so that the desired version of glusterfs is used, regardless where it is installed. (Thanks to manu@netbsd.org for this additional work) Change-Id: I2339a0d9275de5939ccad3e52b535598064a35e7 BUG: 1111774 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8246 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* libglusterfs: wrong function definition of synclock_destory(). Humble Chirammal2014-08-061-1/+1
| | | | | | | | | | | | | | | | | synclock_destory() has been prototyped in syncop.h, how-ever synclock_destroy() is the actual function used in syncop.c. Correcting this function definition along with few typos. Change-Id: I35a818190c1d37c303279ca7a820f01895751bd9 BUG: 1075417 Signed-off-by: Humble Chirammal <hchiramm@redhat.com> Reviewed-on: http://review.gluster.org/8266 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: Poornima G <pgurusid@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: Modified logic of linkto file deletion on non-hashedVenkatesh Somyajulu2014-07-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently whenever dht_lookup_everywhere gets called, if in dht_lookup_everywhere_cbk, a linkto file is found on non-hashed subvolume, file is unlinked. But there are cases when this file is under migration. Under such condition, we should avoid deletion of file. When some other rebalance process changes the layout of parent such that dst_file (w.r.t. migration) falls on non-hashed node, then may be lookup could have found it as linkto file but just before unlink, file is under migration or already migrated In such cased unlink can be avoided. Race: ------- If we have two bricks (brick-1 and brick-2) with initial file "a" under BaseDir which is hashed as well as cached on (brick-1). Assume "a" hashing gives 44. Brick-1 Brick-2 Initial Setup: BaseDir/a BaseDir [1-50] [51-100] Now add new-brick Brick-3. 1. Rebalance-1 on node Node-1 (Brick-1 node) will reset the BaseDir Layout. 2. After that it will perform a) Create linkto file on new-hashed (brick-2) b) Perform file migration. 1.Rebalance-1 Fixes the base-layout: Brick-1 Brick-2 Brick-3 --------- ---------- ------------ BaseDir/a BaseDir BaseDir [1-33] [34-66] [67-100] 2. Only a) is BaseDir/a BaseDir/a(linkto) BaseDir performed Create linktofile Now rebalance 2 on node-2 jumped in and it will perform step 1 and 2-a. After (rebal-2, step-1), it changes the layout of the BaseDir. BaseDir/a BaseDir/a(link) BaseDir [67-100] [1-33] [34-66] For (rebale-2, step-2), It will perform lookup at Brick-3 as w.r.t new layout 44 falls for brick-3. But lookup will fail. So dht_lookup_everywhere gets called. NOTE: On brick-2 by rebalance-1, a linkto file was created. Currently that linkto files gets deleted by rebalance-2 lookup as it is considered as stale linkto file. But with patch if rebalance is already in progress or rebalance is over, linkto file will not be unlinked. If rebalance is in progress fd will be open and if rebalance is over then linkto file wont be set. Change-Id: I3fee0d28de3c76197325536a9e30099d2413f079 BUG: 1116150 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/8345 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* socket/glusterd/client: enable SSL for managementJeff Darcy2014-07-101-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* gsyncd / geo-rep: FSH recommended log locationsVenky Shankar2014-06-101-2/+3
| | | | | | | | | | | | | | | | Upgrading "working_dir" on the fly is a bit unclean yet (though it works) as currently config upgrade does not support "old" values to be expanded by using configuration variables. Change-Id: I44ed65c281f2e0ce3b6b467addc5c1c88ac674e7 BUG: 1077516 Signed-off-by: Venky Shankar <vshankar@redhat.com> Signed-off-by: Kotresh H R <khiremat@redhat.com> Signed-off-by: Aravinda VK <avishwan@redhat.com> Signed-off-by: Ajeet Jha <ajha@redhat.com> Reviewed-on: http://review.gluster.org/7375 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cluster/dht: Fix min-free-disk calculations when quota-deem-statfs is onKrutika Dhananjay2014-06-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PROBLEM: As part of file creation, DHT sends a statfs call to all of its sub-volumes and expects in return the local space consumption and availability on each one of them. This information is used by DHT to ensure that atleast min-free-disk amount of space is left on each sub-volume in the event that there ARE other sub-volumes with more space available. But when quota-deem-statfs is enabled, quota xlator on every brick unwinds the statfs call with volume-wide consumption of disk space. This leads to miscalculation in min-free-disk algo, thereby misleading DHT at some point, into thinking all sub-volumes have equal available space, in which case DHT keeps sending new file creates to subvol-0, causing it to become 100% full at some point although there ARE other subvols with ample space available. FIX: The fix is to make quota_statfs() behave as if quota xlator weren't enabled, thereby making every brick return only its local consumption and disk space availability. Change-Id: I211371a1eddb220037bd36a128973938ea8124c2 BUG: 1099890 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/7845 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* meta: (re-)Implement Meta translatorAnand Avati2014-05-051-0/+1
| | | | | | | | | | | | | | | | | The meta translator exposes details about glusterfs itself in the form of a virtual namespace. Loading the translator on the client side creates the meta virtual view under $mntpoint/.meta by default. The directory is not listed (even with ls -a) and can be accessed by doing a "cd /mnt/.meta" Change-Id: I5ffdf39203841a9562a8280a1f79dc76d4dded5d BUG: 1089216 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/7509 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
* logging: Introduce suppression of repetitive log messagesKrutika Dhananjay2014-04-301-0/+16
| | | | | | | | | Change-Id: I8efa08cc9832ad509fba65a88bb0cddbaf056404 BUG: 1075611 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/7475 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* build: MacOSX Porting fixesHarshavardhana2014-04-241-1/+1
| | | | | | | | | | | | | | | | | | | | | git@forge.gluster.org:~schafdog/glusterfs-core/osx-glusterfs Working functionality on MacOSX - GlusterD (management daemon) - GlusterCLI (management cli) - GlusterFS FUSE (using OSXFUSE) - GlusterNFS (without NLM - issues with rpc.statd) Change-Id: I20193d3f8904388e47344e523b3787dbeab044ac BUG: 1089172 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Dennis Schafroth <dennis@schafroth.com> Tested-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Dennis Schafroth <dennis@schafroth.com> Reviewed-on: http://review.gluster.org/7503 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* logging: Make logger and log format configurable through cliKrutika Dhananjay2014-04-111-0/+2
| | | | | | | | | | Change-Id: Ic4b701a6621578848ff67ae4ecb5a10b5f32f93b BUG: 1075611 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/7372 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gluster: GlusterFS Volume Snapshot FeatureAvra Sengupta2014-04-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | This is the initial patch for the Snapshot feature. Current patch includes following features: * Snapshot create * Snapshot delete * Snapshot restore * Snapshot list * Snapshot info * Snapshot status * Snapshot config Change-Id: I2f46920c0d61c515f6a60e0f8b46fff886d9f6a9 BUG: 1061685 Signed-off-by: shishir gowda <sgowda@redhat.com> Signed-off-by: Sachin Pandit <spandit@redhat.com> Signed-off-by: Vijaikumar M <vmallika@redhat.com> Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> Signed-off-by: Joseph Fernandes <josferna@redhat.com> Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7128 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: glfs_set_volfile_server() now entertains multiple callsHarshavardhana2014-04-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Previous API: glfs_set_volfile_server (..., const char *host, ...) - single call New API's: glfs_set_volfile_server (..., const char *host1, ...) glfs_set_volfile_server (..., const char *host2, ...) Multiple calls to this function with different volfile servers, port or transport-type would create a list of volfile servers which would be polled during `volfile_fetch_attempts()` glfs_unset_volfile_server (..., const char *host, ...) to remove a server from the list (this is provided for future usage) Change-Id: I313efbd3efbd0214e2a71465f33195788df406cc BUG: 986429 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/7317 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* log: enhance gluster log format with message ID and standardize errno reportingShyamsundarR2014-03-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently there are quite a slew of logs in Gluster that do not lend themselves to trivial analysis by various tools that help collect and monitor logs, due to the textual nature of the logs. This FEAT is to make this better by giving logs message IDs so that the tools do not have to do complex log parsing to break it down to problem areas and suggest troubleshooting options. With this patch, a new set of logging APIs are introduced that take additionally a message ID and an error number, so as to print the message ID and the descriptive string for the error. New APIs: - gf_msg, gf_msg_debug/trace, gf_msg_nomem, gf_msg_callingfn These APIs follow the functionality of the previous gf_log* counterparts, and hence are 1:1 replacements, with the delta that, gf_msg, gf_msg_callingfn take additional parameters as specified above. Defining the log messages: Each invocation of gf_msg/gf_msg_callingfn, should provide an ID and an errnum (if available). Towards this, a common message id file is provided, which contains defines to various messages and their respective strings. As other messages are changed to the new infrastructure APIs, it is intended that this file is edited to add these messages as well. Framework enhanced: The logging framework is also enhanced to be able to support different logging backends in the future. Hence new configuration options for logging framework and logging formats are introduced. Backward compatibility: Currently the framework supports logging in the traditional format, with the inclusion of an error string based on the errnum passed in. Hence the shift to these new APIs would retain the log file names, locations, and format with the exception of an additional error string where applicable. Testing done: Tested the new APIs with different messages in normal code paths Tested with configurations set to gluster logs (syslog pending) Tested nomem variants, inducing the message in normal code paths Tested ident generation for normal code paths (other paths pending) Tested with sample gfapi program for gfapi messages Test code is stripped from the commit Pending work (not to be addressed in this patch (future)): - Logging framework should be configurable - Logging format should be configurable - Once all messages move to the new APIs deprecate/delete older APIs to prevent misuse/abuse using the same - Repeated log messages should be suppressed (as a configurable option) - Logging framework assumes that only one init is possible, but there is no protection around the same (in existing code) - gf_log_fini is not invoked anywhere and does very little cleanup (in existing code) - DOxygen comments to message id headers for each message Change-Id: Ia043fda99a1c6cf7817517ef9e279bfcf35dcc24 BUG: 1075611 Signed-off-by: ShyamsundarR <srangana@redhat.com> Reviewed-on: http://review.gluster.org/6547 Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: refactorAnand Avati2014-03-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Remove client side self-healing completely (opendir, openfd, lookup) - Re-work readdir-failover to work reliably in case of NFS - Remove unused/dead lock recovery code - Consistently use xdata in both calls and callbacks in all FOPs - Per-inode event generation, used to force inode ctx refresh - Implement dirty flag support (in place of pending counts) - Eliminate inode ctx structure, use read subvol bits + event_generation - Implement inode ctx refreshing based on event generation - Provide backward compatibility in transactions - remove unused variables and functions - make code more consistent in style and pattern - regularize and clean up inode-write transaction code - regularize and clean up dir-write transaction code - regularize and clean up common FOPs - reorganize transaction framework code - skip setting xattrs in pending dict if nothing is pending - re-write self-healing code using syncops - re-write simpler self-heal-daemon Change-Id: I1e4080c9796c8a2815c2dab4be3073f389d614a8 BUG: 1021686 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6010 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/server: do not do root-squashing for trusted clientsRaghavendra Bhat2014-02-101-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* features/quota: Metadata cleanupVarun Shastry2014-01-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quota and marker uses 'trusted.glusterfs.quota*' and 'trusted.pgfid*' xattrs to store its configurations and accounting information and also to build the parent inode chain in case of absense of path. Problem: After disabling and then enabling quota back, the xattrs may contain stale data leading to impaired accounting and thus improper enforcement. Solution: Clean up all the quota related xattrs after quota disable. Marker xlator implements a virtual xattr to cleanup quota and pgfid xattrs. In this approach glusterd mounts an auxiliary mount and sends the below command to all the files by crawling the mountpoint. #setfattr -n "glusterfs.quota-xattr-cleanup" -v 1 <path/to/file> Credit: Krishnan Parthasarathi <kparthas@redhat.com> Varun Shastry <vshastry@redhat.com> Change-Id: I9380eca58a285dc27dd572de1767aac8f2cd8049 BUG: 969461 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/6369 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* locks: various fixesAnand Avati2014-01-131-1/+0
| | | | | | | | | | | | | | | | - implement ref/unref of entry locks (and fix bad pointer deref crashes) - code cleanup and deleted various data types - fix improper read/write lock conflict detection in entrylk - fix indefinite hang of blocked locks on disconnect - register locks in client_t synchronously, fix crashes in disconnect path Change-Id: Id273690c9111b8052139d1847060d1fb5a711924 BUG: 849630 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6638 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* pathinfo: Provide user namespace access.Vijaykumar M2013-12-161-3/+6
| | | | | | | | | | | | | | | | | Locality can be now queried by unprivileged users with key "glusterfs.pathinfo". Setting both "glusterfs.pathinfo" and "trusted.glusterfs.pathinfo" on disk is prevented with this patch. Original Author: Vijay Bellur <vbellur@redhat.com> Change-Id: I4f7a0db8ad59165c4aeda04b23173255157a8b79 Signed-off-by: Vijaykumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/5101 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/dht: instruct marker whenever it shouldn't do accountingRaghavendra G2013-11-261-0/+1
| | | | | | | | | | | | | | | | | | This is needed for two reasons: * since dht-linkfiles are internal, they shouldn't be accounted. * hardlink handling in marker is broken. link/unlink of hardlinks present in same directory can break marker accounting. Hence, if src and dst are in same directory in case of rename, dht - if it breaks rename into link/unlink operations - should instruct marker to not to do accounting. Change-Id: I9c9f7384569f75a2792f6450ee7a5279bf751ae7 BUG: 1022995 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/6203 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: add dht_is_linkfile helper procedure.Raghavendra G2013-11-261-0/+10
| | | | | | | | | | | | | | components other than distribute (like marker to exclude linkfiles from being accounted) also need awareness of what constitutes a linkfile. Hence its good to separate out this functionality into core. Change-Id: Ib944eeacc991bb1de464c9e73ee409fc7a689ff1 BUG: 1022995 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/6152 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* features/quota: Improvements to quotaRaghavendra G2013-11-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Two stages of quota enforcement is done: Soft and hard quota Upon reaching soft quota limit on the directory it logs/alerts in the quota daemon log (ie DEFAULT_LOG_DIR/quotad.log) and no more writes allowed after hard quota limit. After reaching the soft-limit the daemon alerts the user/admin repeatively for every 'alert-time', which is configurable. * Quota enforcer is moved to server-side. It takes care of enforcing quota. Since enforcer doesn't have the cluster view, it relies on another service called quota-aggregator. Aggregator, on query can return the size of a directory based on the cluster view. Enforcer is always loaded in the server graph and is by passed if the feature is not enabled. Options specific to enforcer: server-quota - Specifies whether the feature is on/off. It is used to by pass the quota if turned off. deem-statfs - If set to on, it takes quota limits into consideration while estimating fs size. (df command). The algorithm followed is, i. Adjust statvfs based on limit configured on root. ii. If limit is set on the inode passed, use size/limits on that inode to populate statvfs. Otherwise, use size/limits configured on root. iii. Upon statvfs, update the ctx->size on the inode. iv. Don't let DHT aggregate, instead take the maximum of the usages from the subvols of the DHT, since each of it contains the complete information. Enforcer also makes use of gfid-to-path conversion functionality to work correctly when a client like nfs predominently relies on nameless lookups. * Quota Aggregator acts as a thin client to provide cluster view Its a lightweight *gluster client* process with no mount point, started upon enabling quota or restarting the volume. This is a single process run on each brick, which can answer queries on all volumes in the cluster. Its volfile stored in GLUSTERD_DEFAULT_WORKING_DIR/quotad/quotad.vol. Credits: Raghavendra Bhat <rabhat@redhat.com> Varun Shastry <vshastry@redhat.com> Shishir Gowda <sgowda@redhat.com> Kruthika Dhananjay <kdhananj@redhat.com> Brian Foster <bfoster@redhat.com> Krishnan Parthasarathi <kparthas@redhat.com> Change-Id: Id1cb25b414951da34c665a55f77385d482e0f9de BUG: 969461 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/5952 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* posix: placeholders for GFID to path conversionRaghavendra G2013-11-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | what? ===== The following is an attempt to generate the paths of a file when only its gfid is known. To find the path of a directory, the symlink handle to the directory maintained in the ".glusterfs" backend directory is read. The symlink handle is generated using the gfid of the directory. It (handle) contains the directory's name and parent gfid, which are used to recursively construct the absolute path as seen by the user from the mount point. A similar approach cannot be used for a regular file or a symbolic link since its hardlink handle, generated using its gfid, doesn't contain its parent gfid and basename. So xattrs are set to store the parent gfids and the number of hardlinks to a file or a symlink having the same parent gfid. When an user/application requests for the paths of a regular file or a symlink with multiple hardlinks, using the parent gfids stored in the xattrs, the paths of the parent directories are generated as mentioned earlier. The base names of the hardlinks (with the same parent gfid) are determined by matching the actual backend inode numbers of each entry in the parent directory with that of the hardlink handle. Xattr is set on a regular file, link, and symbolic link as follows, Xattr name : trusted.pgfid.<pargfidstr> Xattr value : <number of hardlinks to a regular file/symlink with the same parentgfid> If a regular file, hard link, symbolic link is created then an xattr in the above format is set in the backend. how to use? =========== This functionality can be used through getxattr interface. Two keys - glusterfs.ancestry.dentry and glusterfs.ancestry.path - enable usage of this functionality. A successful getxattr will have the result stored under same keys. Values will be, glusterfs.ancestry.dentry: -------------------------- A linked list of gf-dirent structures for all possible paths from root to this gfid. If there are multiple paths, the linked-list will be a series of paths one after another. Each path will be a series of dentries representing all components of the path. This key is primarily for internal usage within glusterfs. glusterfs.ancestry.path: ------------------------ A string containing all possible paths from root to this gfid. Multiple hardlinks of a file or a symlink are displayed as a colon seperated list (this could interfere with path components containing ':'). e.g. If there is a file "file1" in root directory with two hardlinks, "/dir2/link2tofile1" and "/dir1/link1tofile1", then [root@alpha gfsmntpt]# getfattr -n glusterfs.ancestry.path -e text file1 glusterfs.ancestry.path="/file1:/dir2/link2tofile1:/dir1/link1tofile1" Thanks Amar, Avati and Venky for the inputs. Original Author: Ramana Raja <rraja@redhat.com> BUG: 990028 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Change-Id: I0eaa9101e333e0c1f66ccefd9e95944dd4a27497 Reviewed-on: http://review.gluster.org/5951 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mount/fuse: handle --gid-timeout=0 properlyAnand Avati2013-11-201-0/+1
| | | | | | | | | | | | | | Fix the bug which was using the timeout value as a flag to indicate if it was set (and hence would fail when timeout=0 would evaluate as False) Change-Id: Ie9a8f28d35603458cdac26c9a4e0343e7eda7344 BUG: 1032438 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6308 Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* bd: Add BD support to other xlatorsM. Mohan Kumar2013-11-131-0/+4
| | | | | | | | | | | | | | | | Make changes to distributed xlator to work with BD xlator. Unlike files, a block device can't be removed when its opened. So some part of the code were moved down to avoid this situation. Also before truncating a BD file its BD_XATTR should be set otherwise truncate will result in truncating posix file. So file is created with needed BD_XATTR and truncate is invoked. Also enables BD xlator in stripe volume type. Change-Id: If127516e261fac5fc5b137e7fe33e100bc92acc0 BUG: 1028672 Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/5235 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs: zerofill supportM. Mohan Kumar2013-11-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* client_t: phase 2, refactor server_ctx and locks_ctx outKaleb S. KEITHLEY2013-10-311-2/+3
| | | | | | | | | | | | | | 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>
* cli,glusterd: Changes to cli-glusterd communicationKaushal M2013-10-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Glusterd changes: With this patch, glusterd creates a socket file in DATADIR/run/glusterd.socket , and listen on it for cli requests. It listens for 2 rpc programs on the socket file, - The glusterd cli rpc program, for all cli commands - A reduced glusterd handshake program, just for the 'system:: getspec' command The location of the socket file can be changed with the glusterd option 'glusterd-sockfile'. To retain compatibility with the '--remote-host' cli option, glusterd also listens for the cli requests on port 24007. But, for the sake of security, it listens using a reduced cli rpc program on the port. The reduced rpc program only contains read-only procs used for 'volume (info|list|status)', 'peer status' and 'system:: getwd' cli commands. CLI changes: The gluster cli now uses the glusterd socket file for communicating with glusterd by default. A new option '--gluster-sock' has been added to allow specifying the sockfile used to connect. Using the '--remote-host' option will make cli connect to the given host & port. Tests changes: cluster.rc has been modified to make use of socket files and use different log files for each glusterd. Some of the tests using cluster.rc have been fixed. Change-Id: Iaf24bc22f42f8014a5fa300ce37c7fc9b1b92b53 BUG: 980754 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5280 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/afr: [Feature] Command implementation to get heal-countVenkatesh Somyajulu2013-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently to know the number of files to be healed, either user has to go to backend and check the number of entries present in indices/xattrop directory. But if a volume consists of large number of bricks, going to each backend and counting the number of entries is a time-taking task. Otherwise user can give gluster volume heal vol-name info command but with this approach if no. of entries are very hugh in the indices/ xattrop directory, it will comsume time. So as a feature, new command is implemented. Command 1: gluster volume heal vn statistics heal-count This command will get the number of entries present in every brick of a volume. The output displays only entries count. Command 2: gluster volume heal vn statistics heal-count replica 192.168.122.1:/home/user/brickname Here if we are concerned with just one replica. So providing any one of the brick of a replica will get the number of entries to be healed for that replica only. Example: Replicate volume with replica count 2. Backend status: -------------- [root@dhcp-0-17 xattrop]# ls -lia | wc -l 1918 NOTE: Out of 1918, 2 entries are <xattrop-gfid> dummy entries so actual no. of entries to be healed are 1916. [root@dhcp-0-17 xattrop]# pwd /home/user/2ty/.glusterfs/indices/xattrop Command output: -------------- Gathering count of entries to be healed on volume volume3 has been successful Brick 192.168.122.1:/home/user/22iu Status: Brick is Not connected Entries count is not available Brick 192.168.122.1:/home/user/2ty Number of entries: 1916 Change-Id: I72452f3de50502dc898076ec74d434d9e77fd290 BUG: 1015990 Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com> Reviewed-on: http://review.gluster.org/6044 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gNFS: Incorrect NFS ACL encoding for XFSSantosh Kumar Pradhan2013-09-291-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | Problem: Incorrect NFS ACL encoding causes "system.posix_acl_default" setxattr failure on bricks on XFS file system. XFS (potentially others?) doesn't understand when the 0x10 prefix is added to the ACL type field for default ACLs (which the Linux NFS client adds) which causes setfacl()->setxattr() to fail silently. NFS client adds NFS_ACL_DEFAULT(0x1000) for default ACL. FIX: Mask the prefix (added by NFS client) OFF, so the setfacl is not rejected when it hits the FS. Original patch by: "Richard Wareing" Change-Id: I17ad27d84f030cdea8396eb667ee031f0d41b396 BUG: 1009210 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/5980 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfsd: Round robin DNS should not be relied upon withHarshavardhana2013-09-061-11/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | config service availability for clients. Backupvolfile server as it stands is slow and prone to errors with mount script and its combination with RRDNS. Instead in theory it should use all the available nodes in 'trusted pool' by default (Right now we don't have a mechanism in place for this) Nevertheless this patch provides a scenario where a list of volfile-server can be provided on command as shown below ----------------------------------------------------------------- $ glusterfs -s server1 .. -s serverN --volfile-id=<volname> \ <mount_point> ----------------------------------------------------------------- OR ----------------------------------------------------------------- $ mount -t glusterfs -obackup-volfile-servers=<server2>: \ <server3>:...:<serverN> <server1>:/<volname> <mount_point> ----------------------------------------------------------------- Here ':' is used as a separator for mount script parsing Now these will be remembered and recursively attempted for fetching vol-file until exhausted. This would ensure that the clients get 'volume' configs in a consistent manner avoiding the need to poll through RRDNS. Change-Id: If808bb8a52e6034c61574cdae3ac4e7e83513a40 BUG: 986429 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/5400 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: remove GLUSTERFS_CREATE_MODE_KEY usageAmar Tumballi2013-08-231-1/+0
| | | | | | | | | Change-Id: I23b8cb7223b91a55af1cd4214f61bbe0e87351f6 BUG: 952029 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5683 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: changes to support gfid-accessAmar Tumballi2013-08-211-0/+2
| | | | | | | | | Change-Id: I38d2fdc47e4b805deafca6805e54807976ffdb7e Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 952029 Reviewed-on: http://review.gluster.org/5496 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* Revert "fuse: auxiliary gfid mount support"Amar Tumballi2013-08-211-2/+0
| | | | | | | | | | | | | | | | | This reverts commit 4c0f4c8a89039b1fa1c9c015fb6f273268164c20. Conflicts: xlators/mount/fuse/src/fuse-bridge.c For build issues added CREATE_MODE_KEY definition in: libglusterfs/src/glusterfs.h Change-Id: I8093c2a0b5349b01e1ee6206025edbdbee43055e BUG: 952029 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5495 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* afr: treat appending writes as stable writes.Anand Avati2013-08-131-0/+1
| | | | | | | | | | | | | Durability of appending writes is implicit in the file size. Therefore performing an explicit fsync() is unnecessary in such cases as self-heal can check for the size of file when pending changelog is not unambiguous. Change-Id: I05446180a91d20e0dbee5de5a7085b87d57f178a BUG: 927146 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5501 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
generated by cgit (git 2.34.1) at 2024-06-03 16:48:55 +0000