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* fix spec fileHEADmasterPrasanna Kumar Kalever2018-03-061-1/+1
| | | | | | | also other minor compiler errors Change-Id: I17625008d91740f3ba9efc6e574ec3dcd0b6c85f Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* create: support [storage <filename>] optionPrasanna Kumar Kalever2018-02-081-2/+55
| | | | | | | | | | | | | | | | | | | | | | $ gluster-block help gluster-block (0.3) usage: gluster-block <command> <volname[/blockname]> [<args>] [--json*] commands: create <volname/blockname> [ha <count>] [auth <enable|disable>] [prealloc <full|no>] [storage <filename>] <host1[,host2,...]> <size> create block device [defaults: ha 1, auth disable, prealloc no, size in bytes] [...] supported JSON formats: --json|--json-plain|--json-spaced|--json-pretty Fixes: #18 Change-Id: I5d9b4abb58596bd2297cffb294c6d31f752d53e9 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* replace strcat and strcpy with their secure versionsPrasanna Kumar Kalever2018-02-081-11/+11
| | | | | Change-Id: If98ce7b7e50901ee130bbe190a12664ec0adb8c2 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* replace: add replace featurePrasanna Kumar Kalever2018-02-071-0/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. create conf in new node 2. delete conf from old node 3. replace portals from nodes hosting other paths (HA) $ gluster-block create sample/block ha 3 192.168.124.57,192.168.124.26,192.168.124.30 1GiB --json-pretty { "IQN":"iqn.2016-12.org.gluster-block:d516bb5c-5f56-4d9c-96a7-385df19c2e2c", "PORTAL(S)":[ "192.168.124.57:3260", "192.168.124.26:3260", "192.168.124.30:3260" ], "RESULT":"SUCCESS" } $ gluster-block help gluster-block (0.3) usage: gluster-block <command> <volname[/blockname]> [<args>] [--json*] commands: [...] replace <volname/blockname> <old-node> <new-node> [force] replace operations. [...] supported JSON formats: --json|--json-plain|--json-spaced|--json-pretty $ gluster-block replace sample/block 192.168.124.26 192.168.124.56 --json-pretty { "NAME":"block", "CREATE SUCCESS":"192.168.124.56", "DELETE SUCCESS":"192.168.124.26", "REPLACE PORTAL SUCCESS ON":[ "192.168.124.57", "192.168.124.30" ], "RESULT":"SUCCESS" } Fixes: #4 Change-Id: I0411d15c407111db0d423052d9a6bc075174bf90 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* logger: support logdir choosing via Environment variablePrasanna Kumar Kalever2017-08-171-2/+2
| | | | | | | | | | | | Currently the default logdir is DATADIR /log/gluster-block/ This patch will provide a way to change this default logdir via Env variable $ export GB_LOGDIR=/var/log/gluster-block-new-path/ Note: make sure to restart the processes (cli & daemon) after you set GB_LOGDIR Change-Id: Id142e4a4dfe7b6ebc9cf8296b8ceb8bff37691b8 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* create: clean metafile along with storage when EntryCreate failsPrasanna Kumar Kalever2017-07-061-2/+13
| | | | | | | | | | | As of now, if an EntryCreate (backend storage create) fails for some reasons like no space left, we only clean storage, leaving metafile. This patch will delete metafile along with backend storage from the volume. Change-Id: I89247b98602c5b991367f671134de496c294f984 Fixes: #32 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* block: add support to prealloc = full | no optionPrasanna Kumar Kalever2017-06-221-21/+24
| | | | | | | | | currently we allocate sparse files for block backends in the gluster volume, with 'prealloc = full' option introduced by this patch we should be able to fully preallocate the backend block file. Change-Id: Ibf32df5f978f732a3fd248693170463da6d08268 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* cache: implement LRU cache to hold glfs objectsPrasanna Kumar Kalever2017-06-051-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: ------- 1. Currently, each cli command take ~5 secs for execution. The Maximum latency is due to initializing a glfs object (glfs_init() and friends). 2. OOM kills due to glfs_fini() leaks (~10MB per object) Solution: -------- Caching bipasses glfs_init() calls from the very next command, as in the first command it goes via the glfs_init route, since there will be cache miss. Hence with caching cli command on a local machine should take ~1 sec. ATM, the cache query looks at the volume name only, as the host name will be localhost in our case and transport will be tcp 24007 always. The default cache capacity is 5 i.e there can be a max of five glfs entries in the cache, anything more will lead to release of least recently used object. This way, if there are <= 5 volume in use for block, there will be no glfs_fini() calls, hence no leaks, no OOM's. The next patch will help in making cache capacity configurable. Change-Id: Ia891451cb92cf09959c1aff85976d78302ec7014 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> [ndevos: correct compiling+linking against libgfapi.so]
* gluster-block: update journal data synchronouslyPrasanna Kumar Kalever2017-05-191-1/+1
| | | | | | | Also use O_SYNC while creating/truncating block file. Change-Id: Ic0bcc3f2905c438ca5b5d3e95955bbd5d95d3ef4 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* login: one command for logging-in to all gateways of a targetPrasanna Kumar Kalever2017-05-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently from the initiator side we need to login to mpath no. of nodes individually for establishing connect with all multipathed block devices from the client side, thus we need to execute mpath no. of login commands (i.e. login to each server) This can be minimized to single login command per target by configuring all gateways for a particular target in all gateways. Currently, $ gluster-block create VOL/BLOCK ha 3 HOSTx,HOSTy,HOSTz 10GiB Creates only one TPG i.e tpg1 (Read as Target Portal Group with Tag 1) on each node/server, with one portal listening on respective IP. All the gateways/nodes emulate same backend as target LUN with same WWN (for multipath representation) So at client side. we need to execute 3 commands to login all gateways $ iscsiadm -m discovery -t st -p HOSTy -l $ iscsiadm -m discovery -t st -p HOSTz -l $ iscsiadm -m discovery -t st -p HOSTx -l In the above case, user may login in any fashion, which is out of our control. Since we have failover multipath configuration, at a given time only one gateway can TX RX the data. so predicting active path/connection is not possible. With this patch, $ gluster-block create VOL/BLOCK ha 3 HOSTx,HOSTy,HOSTz 10GiB Creates 3 TPG's, tpg1(portal HOSTx), tpg2(portal HOSTy) and tpg3(portal HOSTz) on all the three gateways/nodes (IN same order). Basically, each gateway is define to every other gateway - but the other (other than local) gateway entries are in a disabled state. When the client starts the login sequence it issues the RPTG to the one nodes, but now that node can respond with portal IP's for all of the gateways. e.g. GW1 GW2 GW3 - tpg1/enabled - tpg1/disabled - tpg1/disabled - tpg2/disabled - tpg2/enabled - tpg2/disabled - tpg3/disabled - tpg3/disabled - tpg3/enabled Advantage, * Only one login command is needed, unlike 3 login's before, $ iscsiadm -m discovery -t st -p ANYONEHOST -l * Always tpg1 will be tried for making an active path/connection, hence we can predict that the first host in the list {HOSTx,HOSTy,HOSTz} will be tried for active connection. Hence we can be able to better manage load on each nodes, by selectively supplying Hosts in the list. Change-Id: I70f73b1d46812cb1bd8dc80f771ec20b0f0415bf Fixes: #9 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* modify: add support for one way authenticationPrasanna Kumar Kalever2017-05-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduce or rather implement modify command for enabling authentication for block devices. The schematics of authentication setting, looks like $ gluster-block modify block-test/sample-block auth enable --json-pretty { "SUCCESSFUL ON":[ "192.168.0.105" ], "IQN":"iqn.2016-12.org.gluster-block:8917def2-e90d-4406-8c9c-6d06b6851bbe", "USERNAME":"8917def2-e90d-4406-8c9c-6d06b6851bbe", "PASSWORD":"a3e75362-a446-45af-98d0-a1ed7e10d7f0", "RESULT":"SUCCESS" } As an effect it brings changes in 'info' command response, note PASSWORD $ gluster-block info block-test/sample-block --json-pretty { "NAME":"sample-block", "VOLUME":"block-test", "GBID":"8917def2-e90d-4406-8c9c-6d06b6851bbe", "SIZE":1073741824, "HA":1, "PASSWORD":"a3e75362-a446-45af-98d0-a1ed7e10d7f0", "BLOCK CONFIG NODE(S)":[ "192.168.0.105" ] } The schematics of auth disabling, looks like $ gluster-block modify block-test/sample-block auth disable --json-pretty { "SUCCESSFUL ON":[ "192.168.0.105" ], "IQN":"iqn.2016-12.org.gluster-block:add99c38-3c14-42d7-bf23-7d02f388e1e7", "RESULT":"SUCCESS" } Change-Id: I06d095b50401c131ac89cc142497f21d2205164a Fixes: #5 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* block: show reason for cmd failue on non-existent/not started volumePranith Kumar K2017-04-281-0/+11
| | | | | | | | | show the right reason for block operations failure on any non-existent/not started volume. Change-Id: I6340c80aa1a6125038c3e2a2399833562bd5fe8c Fixes: #10 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: support json responsePrasanna Kumar Kalever2017-04-281-26/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is how cli response looks like, on supplying '--json*' flag to cmd-args: $ gluster-block create block-test/sample-block1 ha 1 localhost.localdomain 1GiB --json (or) $ gluster-block create block-test/sample-block2 ha 1 localhost.localdomain 1GiB --json-spaced { "IQN": "iqn.2016-12.org.gluster-block:681af106-85f1-4a02-a122-57c80903458c", \ "PORTAL(S)": [ "localhost.localdomain:3260" ], "RESULT": "SUCCESS" } $ gluster-block create block-test/sample-block3 ha 1 localhost.localdomain 1GiB --json-plain {"IQN":"iqn.2016-12.org.gluster-block:0fdf6647-57f2-477f-8dd4-54a3de06e410",\ "PORTAL(S)":["localhost.localdomain:3260"],"RESULT":"SUCCESS"} $ gluster-block create block-test/sample-block4 ha 1 localhost.localdomain 1GiB --json-pretty { "IQN":"iqn.2016-12.org.gluster-block:e92ca4a0-5325-4c4b-a407-9e75790e4c7f", "PORTAL(S)":[ "localhost.localdomain:3260" ], "RESULT":"SUCCESS" } Change-Id: Ie51039e3dee0b3357d2347b4087e0fbe299aa29e Fixes: #3 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: improve log messagesPrasanna Kumar Kalever2017-02-201-19/+31
| | | | | | | improve strings add missing log messages wherever helpful Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: refactor return valuesPrasanna Kumar Kalever2017-02-191-2/+19
| | | | Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* cli: deprecate volserver optionPrasanna Kumar Kalever2017-02-171-4/+4
| | | | | | | volserver can be considered as "localhost", as we anyway tieing-up glusterd, gluster-blockd and cli processes. Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* daemon: fix minor bugsPrasanna Kumar Kalever2017-02-161-5/+6
| | | | | Reported-by: Pranith Kumar K <pkarampu@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* glfs: fix memory leak in blockStuffMetaInfoPrasanna Kumar Kalever2017-02-111-15/+28
| | | | | | Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: threadify remote requestsPrasanna Kumar Kalever2017-02-091-3/+3
| | | | | | | | | | | | | | | Before: ------ rpc clnt_call() is synchronous, for a multipath request each remote call has to wait until the previous remote call returns i,e each remote op happens in serial. After: ----- As we now threadify the remote calls, all the remote call's happens in parallel shrinking the overall latency for create and delete requests. Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: create block files in '/block-store' dirPrasanna Kumar Kalever2017-02-081-10/+62
| | | | | | | | | | | | | | | | | till now we have '/block-meta' dir for meta files and actual block files used to reside in '/' dir. From now, lets place block files in '/block-store' So, this is how it looks like: $ tree /mnt/ /mnt/ ├── block-meta │   ├── meta.lock │   └── TARGET └── block-store └── 103e4cf1-bf41-404a-9fe1-b7c70fc33b3e Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* build: fix minor warningsPrasanna Kumar Kalever2017-02-081-1/+2
| | | | | | | mostly uninitialized use of variables. check return values from function calls. Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gfapi: unify calls to glfs_init and friendsPrasanna Kumar Kalever2017-02-071-24/+7
| | | | | | | There were two glfs_init(and friends) invocations per op (create & delete). This patch just unifies those calls (since they anyway belong to same volume) Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
* gluster-block: migrate build to libtoolz and create rpmPrasanna Kumar Kalever2017-02-071-0/+270
Till now we had simple makefile for checking dependencies and building. Using libtoolz will give more control on dependency checks and flexibility. This patch also introduce rpm build feature. Compiling: $ ./autogen.sh $ ./configure $ make -j $ make install Building RPMS: $ make rpms Running: $ systemctl start gluster-blockd.service Using CLI: $ gluster-block help Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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