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* glusterd/tier: glusterd crashed with detach-tier commit forceMohammed Rafi KC2015-06-111-0/+7
| | | | | | | | | | | | | | | glusterd crashed when doing "detach-tier commit force" on a non-tiered volume. Change-Id: I884771893bb80bec46ae8642c2cfd7e54ab116a6 BUG: 1228112 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/11081 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Joseph Fernandes Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
* build: do not #include "config.h" in each fileNiels de Vos2015-05-291-5/+0
| | | | | | | | | | | | | | | | | | Instead of including config.h in each file, and have the additional config.h included from the compiler commandline (-include option). When a .c file tests for a certain #define, and config.h was not included, incorrect assumtions were made. With this change, it can not happen again. BUG: 1222319 Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10808 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* tier: Do not allow detach-tier commands on a non-tiered volumeMohammed Rafi KC2015-05-281-1/+17
| | | | | | | | | | | | Change-Id: Ic92d25db68e40ef4a4388ef42affd1b3ee5a7ec6 BUG: 1221270 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10773 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System
* dht: make lookup-unhashed=auto do something actually usefulJeff Darcy2015-05-101-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | The key concept here is to determine whether a directory is "clean" by comparing its last-known-good topology to the current one for the volume. These are stored as "commit hashes" on the directory and the volume root respectively. The volume's commit hash changes whenever a brick is added or removed, and a fix-layout is done. A directory's commit hash changes only when a full rebalance (not just fix-layout) is done on it. If all bricks are present and have a directory commit hash that matches the volume commit hash, then we can assume that every file is in its "proper" place. Therefore, if we look for a file in that proper place and don't find it, we can assume it's not on any other subvolume and *safely* skip the global (broadcast to all) lookup. Change-Id: Id6ce4593ba1f7daffa74cfab591cb45960629ae3 BUG: 1219637 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/7702 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cli/tiering: volume info should display details about tierMohammed Rafi KC2015-05-101-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | >> gluster volume info patchy Volume Name: patchy Type: Tier Volume ID: 8bf1a1ca-6417-484f-821f-18973a7502a8 Status: Created Number of Bricks: 8 Transport-type: tcp Hot Tier : Hot Tier Type : Replicate Number of Bricks: 1 x 2 = 2 Brick1: hostname:/home/brick30 Brick2: hostname:/home/brick31 Cold Bricks: Cold Tier Type : Disperse Number of Bricks: 1 x (4 + 2) = 6 Brick3: hostname:/home/brick20 Brick4: hostname:/home/brick21 Brick5: hostname:/home/brick23 Brick6: hostname:/home/brick24 Brick7: hostname:/home/brick25 Brick8: hostname:/home/brick26 Change-Id: I7b9025af81263ebecd641b4b6897b20db8b67195 BUG: 1212400 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10339 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd/tiering : cksum mismatch for tiered volumeMohammed Rafi KC2015-05-091-2/+2
| | | | | | | | | | | | | | | | | | | Once we updated the volinfo from orginator node, the hot type was overwritten with volume type. Then the same dictionary was sent to peer node to perform the commit of attach-tier, that will cause hot type to replace with volume type, eventually end up in cksum mismatch Change-Id: I402dceb4d672d0b3a7b91a92f52c1057050dbedc BUG: 1215660 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Conflicts: xlators/mgmt/glusterd/src/glusterd-brick-ops.c Reviewed-on: http://review.gluster.org/10406 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cli/tiering: Enhance cli output for tieringMohammed Rafi KC2015-05-081-1/+3
| | | | | | | | | | | | | | Fix for handling cli output for attach-tier and detach-tier Change-Id: I4d17f4b09612754fe1b8cec6c2e14927029b9678 BUG: 1211562 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10284 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* tiering: Remove unwanted check for tier type volumeMohammed Rafi KC2015-05-081-1/+1
| | | | | | | | | | Change-Id: I2def61ebf348558e5f6a138265e3329d9a5407a3 BUG: 1216898 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10494 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System
* tiering: Do not allow some operations on tiered volumeMohammed Rafi KC2015-05-071-0/+25
| | | | | | | | | | | | | | | | | Some operations like add-brick,remove-brick,rebalance, replace-brick are not supported on tiered volume. But there is no code level check for this. This patch will allow to do the same Change-Id: I12689f4e902cf0cceaf6f7f29c71057305024977 BUG: 1205624 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10349 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd: remove replace brick with data migration support form cli/glusterdGaurav Kumar Garg2015-05-071-20/+0
| | | | | | | | | | | | | | | | Replace-brick operation with data migration support have been deprecated from gluster. With this fix replace brick command will support only one commad gluster volume replace-brick <VOLNAME> <SOURCE-BRICK> <NEW-BRICK> {commit force} Change-Id: Ib81d49e5d8e7eaa4ccb5830cfec2bc081191b43b BUG: 1094119 Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com> Reviewed-on: http://review.gluster.org/10101 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd/tiering: disable tiering if cluster runs older gluster versionsDan Lambright2015-05-051-1/+43
| | | | | | | | | | | | Do not allow attach or detach tier to work if any of the nodes is running gluster code < 3.7. Change-Id: Id9af8f4057f6fad9cb703ec7645bc01eccb11fc1 BUG: 1218287 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/10531 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
* glusterd: Coverity fixGaurav Kumar Garg2015-05-051-1/+8
| | | | | | | | | | | | | | | | | | | CID: 1293504 (Calling xlator_set_option without checking return value ) CID: 1293502 (Dereferencing a pointer that might be null xl when calling xlator_set_option) CID: 1293500 (Assigning value from dict_get_int32(dict, "type", &type) to ret here, but that stored value is overwritten before it can be used.) Change-Id: I5314fb399480df70bd77bc374e3b573f2efd5710 BUG: 1093692 Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com> Reviewed-on: http://review.gluster.org/10201 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Kaushal M <kaushal@redhat.com>
* glusterd: support for tier volumes 'detach start' and 'detach commit'Dan Lambright2015-04-221-11/+25
| | | | | | | | | | | | | | | | | | | | | These commands work in a manner analagous to rebalancing when removing a brick. The existing migration daemon detects "detach start" and switches to moving data off the hot tier. While in this state all lookups are directed to the cold tier. gluster v detach-tier <vol> start gluster v detach-tier <vol> commit The status and stop cli commands shall be submitted separately. Change-Id: I24fda5cc3ba74f5fb8aa9a3234ad51f18b80a8a0 BUG: 1205540 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Signed-off-by: root <root@localhost.localdomain> Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/10108 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: NetBSD Build System
* glusterd: Support distributed replicated volumes on hot tierDan Lambright2015-04-081-0/+7
| | | | | | | | | | | | | | We did not set up the graph properly for hot tiers with replicated subvolumes. Also add check that the file has not already been moved by another replicated brick on the same node. Change-Id: I9adef565ab60f6774810962d912168b77a6032fa BUG: 1206517 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/10054 Reviewed-by: Joseph Fernandes <josferna@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* Avoid conflict between contrib/uuid and system uuidEmmanuel Dreyfus2015-04-041-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* Xlators : Fixed typosManikandan Selvaganesh2015-04-021-1/+1
| | | | | | | | | | | Change-Id: I948f85cb369206ee8ce8b8cd5e48cae9adb971c9 BUG: 1075417 Signed-off-by: Manikandan Selvaganesh <mselvaga@redhat.com> Reviewed-on: http://review.gluster.org/9529 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com>
* glusterd: CLI commands to create and manage tiered volumes.Dan Lambright2015-03-191-5/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A tiered volume is a normal volume with some number of new bricks representing "hot" storage. The "hot" bricks can be attached or detached dynamically to a normal volume. When this happens, a new graph is constructed. The root of the new graph is an instance of the tier translator. One subvolume of the tier translator leads to the old volume, and another leads to the new hot bricks. attach-tier <VOLNAME> [<replica> <COUNT>] <NEW-BRICK> ... [force] volume detach-tier <VOLNAME> [replica <COUNT>] <BRICK> ... <start|stop|status|commit|force> gluster volume rebalance <volume> tier start gluster volume rebalance <volume> tier stop gluster volume rebalance <volume> tier status The "tier start" CLI command starts a server side daemon. The daemon initiates file level migration based on caching policies. The daemon's status can be monitored and stopped. Note development on the "tier status" command is incomplete. It will be added in a subsequent patch. When the "hot" storage is detached, the tier translator is removed from the graph and the tiered volume reverts to its original state as described in the volume's info file. For more background and design see the feature page [1]. [1] http://www.gluster.org/community/documentation/index.php/Features/data-classification Change-Id: Ic8042ce37327b850b9e199236e5be3dae95d2472 BUG: 1194753 Signed-off-by: Dan Lambright <dlambrig@redhat.com> Reviewed-on: http://review.gluster.org/9753 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Replace libglusterfs lists with liburcu listsKaushal M2015-03-031-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces usage of the libglusterfs lists data structures and API in glusterd with the lists data structures and API from liburcu. The liburcu data structes and APIs are a drop-in replacement for libglusterfs lists. All usages have been changed to keep the code consistent, and free from confusion. NOTE: glusterd_conf_t->xprt_list still uses the libglusterfs data structures and API, as it holds rpc_transport_t objects, which is not a part of glusterd and is not being changed in this patch. This change was developed on the git branch at [1]. This commit is a combination of the following commits on the development branch. 6dac576 Replace libglusterfs lists with liburcu lists a51b5ab Fix compilation issues d98a06f Fix merge issues a5d918e Remove merge remnant 1cca113 More style cleanup 1917be3 Address review comments on 9624/1 8d10f13 Use cds_lists for glusterd_svc_t 524ad5d Add rculist header in glusterd-conn-helper.c 646f294 glusterd: add list_add_order API honouring rcu [1]: https://github.com/kshlm/glusterfs/tree/urcu Change-Id: Ic613c5b6e496a677b9d3de15fc042a0492109fb0 BUG: 1191030 Signed-off-by: Kaushal M <kaushal@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9624 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Gaurav Kumar Garg <ggarg@redhat.com> Reviewed-by: Anand Nekkunti <anekkunt@redhat.com>
* glusterd: nfs,shd,quotad,snapd daemons refactoringAtin Mukherjee2015-02-201-3/+4
| | | | | | | | | | | | | This patch ports nfs, shd, quotad & snapd with the approach suggested in http://www.gluster.org/pipermail/gluster-devel/2014-December/043180.html Change-Id: I4ea5b38793f87fc85cc9d2cf873727351dedffd2 BUG: 1191486 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9428 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Nekkunti <anekkunt@redhat.com>
* glusterd/geo-rep: Allow replace/remove brick if geo-rep is stopped.Kotresh HR2015-02-161-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | Replace brick: If geo-replication was configured on a volume, replace brick used to fail. This patch allows replace brick to go through if all geo-rep sessions corresponding to that volume is stopped. Remove brick: There was no check for geo-replication for remove brick. Enforce 'remove brick commit' to fail if geo-rep session corresponding to volume is running. Allow 'remove brick commit' only if all of the geo-rep sessions corresponding to that volume is stopped. Code is re-organized for better readability. Change-Id: I02282c2764d8b81e319489c977847e6e437511a4 BUG: 1179638 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9402 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Aravinda VK <avishwan@redhat.com> Reviewed-by: ajeet jha <ajha@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd: Prevent rebalance starting with old clientsKaushal M2014-09-031-0/+19
| | | | | | | | | | | | | | | | | Glusterd will prevent rebalance from starting when clients older than glusterfs-v3.6.0 are connected to a volume. This is needed as running rebalance with old clients connected could lead to data loss in some cases. The DHT xlator on newer clients (>= 3.6.0) has been fixed to prevent the data loss issues. Change-Id: If58640236382a2fc13f73f6b43777f01713859f7 BUG: 1136201 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/8583 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd: update volinfo->subvol_count during remove-brick operation.Ravishankar N2014-07-241-2/+2
| | | | | | | | | | | | | | | | | | Problem: In glusterd_op_remove_brick(), volinfo->subvol_count was getting updated only if the replica count was reduced due to which subvol_matcher_verify() gave false errors under certain scenarios (see bug description). Fix: updated subvol_count for every remove-brick operation. Change-Id: Id72691e2bda1c624cd7d8cae92f6bf32c101a6d3 BUG: 1120647 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/8326 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* cli/glusterd: Added support for dispersed volumesXavier Hernandez2014-07-111-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two new options have been added to the 'create' command of the cli interface: disperse [<count>] redundancy <count> Both are optional. A dispersed volume is created by specifying, at least, one of them. If 'disperse' is missing or it's present but '<count>' does not, the number of bricks enumerated in the command line is taken as the disperse count. If 'redundancy' is missing, the lowest optimal value is assumed. A configuration is considered optimal (for most workloads) when the disperse count - redundancy count is a power of 2. If the resulting redundancy is 1, the volume is created normally, but if it's greater than 1, a warning is shown to the user and he/she must answer yes/no to continue volume creation. If there isn't any optimal value for the given number of bricks, a warning is also shown and, if the user accepts, a redundancy of 1 is used. If 'redundancy' is specified and the resulting volume is not optimal, another warning is shown to the user. A distributed-disperse volume can be created using a number of bricks multiple of the disperse count. Change-Id: Iab93efbe78e905cdb91f54f3741599f7ea6645e4 BUG: 1118629 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/7782 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: More snapshot backward compatability fixesKaushal M2014-06-131-25/+43
| | | | | | | | | | | | | | | | Several volume operations, start, add-brick and replace-brick, expected the presence of a bricks mount directory, which is required for the snapshot feature. This should only be expected when snapshot is supported in the cluster. Change-Id: I92017bb5e069392352f9800cef1ddc80045fda35 BUG: 1101903 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/8046 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd/geo-rep: Create the conf file path correctlyAvra Sengupta2014-06-121-2/+2
| | | | | | | | | | | | | | In case of mount brocker, the conf file path needs to be correctly created, and then fetch the status file Change-Id: Iaa1b04ee46f10961a7056e834170d68282c36efa BUG: 1104649 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7977 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* gsyncd / geo-rep: Partial support for Non-root geo-replication.Venky Shankar2014-05-141-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | This patch enables geo-replication to be run as an unprivileged user. As of now, this is just the partial support, but is very close to achieve full functionality. Current limitation * Geo-replication executed Gluster CLI commands on the slave via SSH. On a non-root setup, Gluster CLI would run as an unprivileged user, failing to execute the command. As a workaround (for testing), setuid(2) Gluster CLI executable or use the glusterd option to accept commands by unprivileged CLI process. The nature of cli commands are "system::" commands (for key management) and remote volume info fetching. Remote volume info fetching has been modified to use --remote-host gluster cli option rather than ssh and remote cli execution. Change-Id: Ica89e2ba9b7f48fd6e1c876c477d7822dc693617 BUG: 1077452 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/7658 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: Fetch brick mount_dirs during brick create.Avra Sengupta2014-05-061-2/+48
| | | | | | | | | | | | | | | | | Fetch the mount directory path for a brick, during volume create, add-brick, and replace-brick. When a snap-create is missed, use this mount directory information to create the brick path for the missed snap brick. Change-Id: Iad3eec96a32cf340f26bdf3f28e2f529e4b77e31 BUG: 1061685 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7550 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* cli: Add a cli command to enable/disable barrierKaushal M2014-04-291-0/+101
| | | | | | | | | | | | | | | This patch adds a new 'gluster volume barrier <VOLNAME> {enable|disable}' cli command. This helps in testing the brick op code path when testing the barrier xlator. This patch can be reverted later if not required for end users. Change-Id: Icd86a2d13e7f276dda1ecbb2593d60638ece7dcd BUG: 1060002 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/6958 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: op-version check for brickops.Ravishankar N2014-03-241-4/+27
| | | | | | | | | | | | | | | | | | | | | | cluster op-version must be atleast 4 for add/remove brick to proceed. This change is required for the new afr-changelog xattr changes that will be done for glusterFS 3.6 (http://review.gluster.org/#/c/7155/). In add-brick, the check is done only when replica count is increased because only that will affect the AFR xattrs. In remove-brick, the check is unconditional failing which there will be inconsistencies in the client xlator names amongst the volfiles of different peers. Change-Id: If981da2f33899aed585ab70bb11c09a093c9d8e6 BUG: 1066778 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7122 Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: persistent client xlator/ afr changelog namesRavishankar N2014-03-241-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | -Add a unique brick-id field to glusterd_brickinfo_t -Persist the id to the brickinfo file -Use the brick-id as the client xlator name during vol create, add-brick and replace-brick operations. -For older volumes,generate the id in-memory during glusterd restore but defer writing it to the brickinfo file until the next volume set operation. -send and receive the brick-ids during peer probe. Feature page: www.gluster.org/community/documentation/index.php/Features/persistent-AFR-changelog-xattributes Related patch: http://review.gluster.org/#/c/7122 Change-Id: Ib7f1570004e33f4144476410eec2b84df4e41448 BUG: 1066778 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7155 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Glusterd/Remove-brick: Reconfigure the nfs server volfile upon remove-brick ↵Susant Palai2014-03-221-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | start Problem : For remove-brick start operation all client volfiles are reconfigured except nfs server volfile. Hence, even after layout is fixed by the rebalance process, the nfs clients dont see the change and go on creating directories and files in the decommissioned brick which leads to data loss after remove-brick commit. Solution : Reconfigure the nfs server volfile for remove-brick start credit: kaushal@redhat.com spalai@redhat.com Change-Id: Ib8cd8b45a9e1f888d5e00dff65cdf77c1613a2af BUG: 1070734 Signed-off-by: Susant Palai <spalai@redhat.com> Reviewed-on: http://review.gluster.org/7162 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Volume locks and transaction specific opinfosAvra Sengupta2014-02-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch we are replacing the existing cluster-wide lock taken on glusterds across the cluster, with volume locks which are also taken on glusterds across the cluster, but are volume specific. So with the volume locks we are able to perform more than one gluster operation at the same time, as long as the operations are being performed on different volumes. We maintain a global list of volume-locks (using a dict for a list) where the key is the volume name, and which saves the uuid of the originator glusterd. These locks are held and released per volume transaction. In order to acheive multiple gluster operations occuring at the same time, we also separate opinfos in the op-state-machine, as a part of this patch. To do so, we generate a unique transaction-id (uuid) per gluster transaction. An opinfo is then associated with this transaction id, which is used throughout the transaction. We maintain a run-time global list(using a dict) of transaction-ids, and their respective opinfos to achieve this. Upstream Feature Page: http://www.gluster.org/community/documentation/index.php/Features/glusterd-volume-locks Change-Id: Iaad505a854bac8de8f83beec0357eb6cde3f7ea8 BUG: 1011470 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5994 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Save/restore/sync rebalance dictKaushal M2013-12-161-27/+33
| | | | | | | | | | | | | | | | | | | | | A dictionary was added to store additional information of a rebalance process, like the bricks being removed in case of a rebalance started by remove-brick. This dictionary wasn't being stored/restored or synced during volume sync, leading to errors like a volume status command failing. These issues have been fixed in this patch. The rebalance dict is now stored/restored and also exported/imported during volume sync. Also, this makes sure that the rebalance dict is only create on remove-brick start. This adds a bricks decommissioned status to the information imported/exported during volume sync. Change-Id: I56fed23dc2de80a96648055fe705e9c3ffd55227 BUG: 1040809 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/6492 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Fix incorrect remove-brick statusKrutika Dhananjay2013-12-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | PROBLEM: 'remove-brick status' was reported to be showing the status of a previous rebalance op that was aborted, on the node which doesn't participate in the remove-brick operation. FIX: Unconditionally reset defrag status to NOT_STARTED whenever a remove-brick or a rebalance op is attempted. Change-Id: Iddf3a14a2ef352e77e0f690fe65aa36ec3011257 BUG: 1040371 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/6482 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: fix error in remove-brick-replica validationRavishankar N2013-12-131-47/+15
| | | | | | | | | | | | | | | | | Problem: Reducing replica count of a volume using remove-brick command fails if bricks are specified in a random order. Fix: Modify subvol_matcher_verify() to permit order agnostic replica count reduction. Change-Id: I1f3d33e82a70d9b69c297f69c4c1b847937d1031 BUG: 1040408 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/6489 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: Do not allow remove-brick commit if the bricks are not decommissionedVijaikumar M2013-12-031-24/+62
| | | | | | | | | Change-Id: Ibf47ea848bbb7ae37ccf91c40e5fe0e2338438b7 BUG: 1027171 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/6233 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
* bd: Add support to create clone, snapshot and merge of LV images.M. Mohan Kumar2013-11-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Special xattr names "clone" & "snapshot" can be used to create full and linked clone of the LV images. GFID of destination posix file (to be mapped) is passed as a value to the xattr. Destination posix file must exist before running this operation. These operations form a basis for offloading storage related operations from QEMU to GlusterFS. Syntax for full clone: xattr name: "clone" value: "gfid-of-dest-file" Syntax for linked clone: xattr name: "snapshot" value: "gfid-of-dest-file" Syntax for merging: xattr name: "merge" value: "path-to-snapshot-file" Example: setfattr -n clone -v <gfid-of-dest-file> /media/source setfattr -n snapshot -v <gfid-of-dest-file> /media/source setfattr -n merge -v "/media/sn" /media/sn Change-Id: Id9f984a709d4c2e52a64ae75bb12a8ecb01f8776 BUG: 1028672 Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/5626 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* bd: posix/multi-brick support to BD xlatorM. Mohan Kumar2013-11-131-1/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* bd_map: Remove bd_map xlatorM. Mohan Kumar2013-11-131-9/+0
| | | | | | | | | | | 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>
* glusterd: modify remove-brick CLI message.Ravishankar N ravishankar@redhat.com2013-11-071-5/+4
| | | | | | | | | | | | | | | | | | | | | In the current context "replica_cnt" is used just to know whether the specific key exists or not by calling "dict_get_int32", which we can replace by "dict_get ()". And changing the log message as it is more appropriate to say "migration of data" rather than "rebalance". This patch refactors commit 51c6fa7a354826744de98 against BZ 961669 reviewed on : http://review.gluster.org/5566 Change-Id: I48eae206a28d4083975e64407ed8fe4539f9c24b BUG: 1027270 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Original patch: Susant Palai <spalai@redhat.com> Reviewed-on: http://review.gluster.org/6001 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: susant palai <spalai@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Don't reset rebalance status on add-brickKaushal M2013-09-181-9/+0
| | | | | | | | | | | | | | | | | | | | The rebalance status was being reset to 'Not started' when add-brick was performed. This would lead to odd cases where a 'rebalance status' on a volume would show status as 'not started' but would also include the rebalance statistics. This also affected the showing of asynchronus task status in 'volume status' command. By not resetting the status prevent the above issues from happening. Since we use the running/not-running of the rebalance process as the check when performing other operations we can safely leave the rebalance stats collected on an add-brick. Change-Id: I4c69d9c789d081c6de7e7a81dd0d4eba2e83ec17 BUG: 1006247 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5895 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cli,glusterd: Task parameters in xml outputKaushal M2013-09-131-2/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces task parameters for the asynchronus task shown in volume status. The parameters are only given for xml output. The parameters shown currently are, - source and destination bricks for replace-brick tasks ...... <tasks> <task> <type>Replace brick</type> <id>3d1a1005-9d2e-4ae0-bd62-577bc1d333a3</id> <status>1</status> <params> <srcBrick>archm:/export/test4</srcBrick> <dstBrick>archm:/export/test-replace1</dstBrick> </params> </task> </tasks> ...... - list of bricks being removed for remove-brick tasks ...... <tasks> <task> <type>Remove brick</type> <id>901c20ca-0da2-41de-8669-5f0caca6b846</id> <status>1</status> <params> <brick>archm:/export/test2</brick> <brick>archm:/export/test3</brick> </params> </task> </tasks> ...... The changes for non-xml output will be done in a subsequent patch. Change-Id: I322afe2f83ed8adeddb99f7962c25911204dc204 BUG: 916577 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5771 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* mgmt/glusterd: Update sub_count on remove brickVijay Bellur2013-09-111-0/+1
| | | | | | | | | | Change-Id: I7c17de39da03c6b2764790581e097936da406695 BUG: 1002556 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/5893 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: Allowing root@hostname::slave georep sessions to be created.Venky Shankar2013-09-041-3/+7
| | | | | | | | | | | | | | non-root@hostname::slave-vol geo-rep sessions are not supported. only hostname and root@hostname sessions are supported, and are treated as the same. Change-Id: I87551e1bd4ff4e0e6520c34eb3d944587cc65476 BUG: 998933 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5659 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: add check in remove-brick start variantRavishankar N2013-08-211-11/+11
| | | | | | | | | | | | | | | | | | | | | | The 'start' variant of the remove-brick command only applies at the dht level wherein we can remove all the bricks of a sub-volume (and remove multiple such sub-volumes) but not select bricks of it. This patch disallows removing individual replica bricks of multiple sub-volumes (i.e. reducing the replcia count of the volume) using remove-brick 'start'. The preferred method for such an operation is to use commit force. This patch also reverts the check to prevent removal of bricks from a replicate volume (commit 0d415f7) BUG: 961669 Change-Id: I447ad27f73a0963b5e09fb317bf7267a7a5a6147 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/5566 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd: remove-brick:Allow simultaneous removal of multiple subvolumes.Ravishankar N2013-08-131-35/+87
| | | | | | | | | | | | | | | | | Currently, remove-brick supports removal of only one distributed stripe/ replica pair at a time. Fix it to support removal of multiple pairs. This is consistent with add-brick behaviour which supports adding multiple stripe/replica pairs simultaneously. Removal is successful irrespective of the order of the bricks given at the CLI, as long as the bricks are from the same subvolume(s). Change-Id: I7c11c1235ce07b124155978b9d48d0ea65396103 BUG: 974007 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/5210 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterd : initiating gsyncd restart during add-brickAvra Sengupta2013-07-311-12/+131
| | | | | | | | | | | | | | | | | | | | | | | During add-brick, when a new brick is added in one of the nodes that was already a part of the existing volume, and gsyncd was already running on that node, then all gsyncd processes running on that node, for that particular master and any slave sessions will be restarted If a new brick is added in a new node, then after adding the brick, the user has to perform the following steps: 1. gluster system:: execute gsec_create 2. gluster volume geo-replication <master-vol> <slave-vol> create push-pem force 3. gluster volume geo-replication <master-vol> <slave-vol> start force Change-Id: I4b9633e176c80e4a7cf33f42ebfa47ab8fc283f1 BUG: 989532 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5416 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: More checks before starting rebalance/remove-brickKaushal M2013-07-021-2/+15
| | | | | | | | | | | | Check if a previous remove-brick operation has been committed before starting a new rebalance/remove-brick task. Change-Id: I553e5ba64a6a352ca91032ab1a17997051a4494e BUG: 963541 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/5019 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mgmt/glusterd: Set task op at the time of task-id setPranith Kumar K2013-06-061-0/+1
| | | | | | | | | | | | | | | | | | Problem: If a remove-brick start is executed on m1 with brick from m2 on local subvolume no rebalance process is launched. Because of this volinfo->rebal.op is not set. This leads to volume status failures. Fix: Set rebal.op even when the reblance process is not started. Change-Id: I71c7e6f09353be14c1e8edca3c8685ebfdf226d6 BUG: 964059 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5030 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* glusterd: remove-brick: prevent removal from a replicate volume.Ravishankar N2013-05-131-2/+13
| | | | | | | | | | | | Prevent the removal of brick(s) from a plain replicate volume and display the error message at the CLI. Change-Id: I8e182404564147329d8cd364b7c7931d19f14570 BUG: 961669 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/4975 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>