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* every/where: add GF_FOP_IPC for inter-translator communicationJeff Darcy2015-03-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* socket: use TCP_USER_TIMEOUT to detect client failures quickerNiels de Vos2015-03-172-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the network.ping-timeout to set the TCP_USER_TIMEOUT socket option (see 'man 7 tcp'). The option sets the transport.tcp-user-timeout option that is handled in the rpc/socket layer on the protocol/server side. This socket option makes detecting unclean disconnected clients more reliable. When the socket gets closed, any locks that the client held are been released. This makes it possible to reduce the fail-over time for applications that run on systems that became unreachable due to a network partition or general system error client-side (kernel panic, hang, ...). It is not trivial to create a test-case for this at the moment. We need a client that unclean disconnects and an other client that tries to take over the lock from the disconnected client. URL: http://supercolony.gluster.org/pipermail/gluster-devel/2014-May/040755.html Change-Id: I5e5f540a49abfb5f398291f1818583a63a5f4bb4 BUG: 1129787 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8065 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: Santosh Pradhan <santosh.pradhan@gmail.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* Upcall: New xlator to store various states and send cbk eventsSoumya Koduri2015-03-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* cluster/ec: Add self-heal-daemon command handlersPranith Kumar K2015-03-091-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces the changes required in ec xlator to handle index/full heal. Index healer threads: Ec xlator start an index healer thread per local brick. This thread keeps waking up every minute to check if there are any files to be healed based on the indices kept in index directory. Whenever child_up event comes, then also this index healer thread wakes up and crawls the indices and triggers heal. When self-heal-daemon is disabled on this particular volume then the healer thread keeps waiting until it is enabled again to perform heals. Full healer threads: Ec xlator starts a full healer thread for the local subvolume provided by glusterd to perform full crawl on the directory hierarchy to perform heals. Once the crawl completes the thread exits if no more full heals are issued. Changed xl-op prefix GF_AFR_OP to GF_SHD_OP to make it more generic. Change-Id: Idf9b2735d779a6253717be064173dfde6f8f824b BUG: 1177601 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9787 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpcsvc: New rpc routines defined to send callback requestsSoumya Koduri2015-03-012-0/+47
| | | | | | | | | | | | | Change-Id: I7f95682faada16308314bfbf84298b02d1198efa BUG: 1188184 Signed-off-by: Poornima G <pgurusid@redhat.com> Signed-off-by: Soumya Koduri <skoduri@redhat.com> Reviewed-on: http://review.gluster.org/9534 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* glusterd: nfs,shd,quotad,snapd daemons refactoringAtin Mukherjee2015-02-202-0/+44
| | | | | | | | | | | | | 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>
* rdma: reduce log level from E to WMohammed Rafi KC2015-02-172-1/+28
| | | | | | | | | | | | | | glusterd process, when try to initialize default vol file, will always through an error if there is no rdma device. Changing the log levels and log messages to more appropriately. Change-Id: I75b919581c6738446dd2d5bddb7b7658a91efcf4 BUG: 1188232 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/9559 Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* rpc: fix ref leak in ping timerKrishnan Parthasarathi2015-02-041-1/+16
| | | | | | | | Change-Id: I4ddc371d01ec763706a168a215410015ee2a3787 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9578 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* geo-rep: Adding Slave user field to georep statusAravinda VK2015-02-021-0/+1
| | | | | | | | | | | | | | | | | | | New column introduced in Status output, "SLAVE USER", Slave user is not "root" in non root Geo-replication setup. Added additional tag in XML output <slave_user> BUG: 1180459 Change-Id: Ia48a5a8eb892ce883b9ec114be7bb2d46eff8535 Signed-off-by: Aravinda VK <avishwan@redhat.com> Reviewed-on: http://review.gluster.org/9409 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* mgmt/glusterd: Implement Volume heal enable/disablePranith Kumar K2015-01-201-0/+2
| | | | | | | | | | | | | | | | | | For volumes with replicate, disperse xlators, self-heal daemon should do healing. This patch provides enable/disable functionality for the xlators to be part of self-heal-daemon. Replicate already had this functionality with 'gluster volume set cluster.self-heal-daemon on/off'. But this patch makes it uniform for both types of volumes. Internally it still does 'volume set' based on the volume type. Change-Id: Ie0f3799b74c2afef9ac658ef3d50dce3e8072b29 BUG: 1177601 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9358 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* cluster/afr: split-brain resolution CLIRavishankar N2015-01-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* rpc: initialise transport's list on creationKrishnan Parthasarathi2015-01-151-0/+2
| | | | | | | | | | | | | | Initialising the transport's list, meant to hold clients connected to it, on the first connection event is prone to race, especially with the introduction of multi-threaded event layer. BUG: 1181203 Change-Id: I6a20686a2012c1f49a279cc9cd55a03b8c7615fc Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/9413 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* rpc/rpcsvc: add peername to log messagesKrishnan Parthasarathi2014-12-101-12/+20
| | | | | | | | | | | | | This would allow users/developers to associate rpc layer log messages to the corresponding connection. Change-Id: I040f79248dced7174a4364d9f995612ed3540dd4 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/8535 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* rdma:vectored write fails for rdma.Mohammed Rafi KC2014-12-072-3/+3
| | | | | | | | | | | | | | | | | | | | For rdma write with payload count greater than one will fail due to insuffient memory to hold the buffers in rpc transport layer. It was expecting only one vector in payload, So it can only able to decode the first iovec from payload, and the rest will be discarded. Thnaks to Raghavendra Gowdappa for fixing the same. Change-Id: I82a649a34abe6320d6216c8ce73e69d9b5e99326 BUG: 1171142 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/9247 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* gNFS: Subdir mount does not work on UDP protoSantosh Kumar Pradhan2014-10-072-40/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After enabling nfs.mount-udp, mounting a subdir on a volume over NFS fails. Because mountudpproc3_mnt_3_svc() invokes nfs3_rootfh() which internally calls mnt3_mntpath_to_export() to resolve the mount path. mnt3_mntpath_to_export() just works if the mount path requested is volume itself. It is not able to resolve, if the path is a subdir inside the volume. MOUNT over TCP uses mnt3_find_export() to resolve subdir path but UDP can't use this routine because mnt3_find_export() needs the req data (of type rpcsvc_request_t) and it's available only for TCP version of RPC. FIX: (1) Use syncop_lookup() framework to resolve the MOUNT PATH by breaking it into components and resolve component-by-component. i.e. glfs_resolve_at () API from libgfapi shared object. (2) If MOUNT PATH is subdir, then make sure subdir export is not disabled. (3) Add auth mechanism to respect nfs.rpc-auth-allow/reject and subdir auth i.e. nfs.export-dir (4) Enhanced error handling for MOUNT over UDP Change-Id: I42ee69415d064b98af4f49773026562824f684d1 BUG: 1118311 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/8346 Reviewed-by: soumya k <skoduri@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* snapview-server: register a callback with glusterd to get notificationsRaghavendra Bhat2014-09-081-0/+1
| | | | | | | | | | | | | | | * As of now snapview-server is polling (sending rpc requests to glusterd) to get the latest list of snapshots at some regular time intervals (non configurable). Instead of that register a callback with glusterd so that glusterd sends notifications to snapd whenever a snapshot is created/deleted and snapview-server can configure itself. Change-Id: I17a274fd2ab487d030678f0077feb2b0f35e5896 BUG: 1119628 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/8150 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cli/glusterd: Support of volume get for a specific volume optionAtin Mukherjee2014-08-261-0/+1
| | | | | | | | | | | | | | This patch introduces a cli command to display a specific volume option/all volume options of a specific volume with the following usage: Usage: volume get <VOLNAME> <key|all> Change-Id: Ic88edb33c5509d7a37cd5ade6341e45e3cdbf59d BUG: 983317 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/8305 Reviewed-by: Kaushal M <kaushal@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* build: make GLUSTERD_WORKDIR rely on localstatedirHarshavardhana2014-08-072-2/+2
| | | | | | | | | | | | | | | | | | | | | | - 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>
* Do not call rpc_transport_unref() on NULL transEmmanuel Dreyfus2014-08-041-2/+4
| | | | | | | | | | | | | | | rpc_clnt_disable() sets rpc->conn->trans to NULL, hence we should not call rpc_transport_unref() afterwards. I moved it before the rpc_clnt_disable() call, but I am not sure it should be called at all, perhaps it should just go away. BUG: 764655 Change-Id: I488d0207494e3a3fad52e64e67b2e740b236b864 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8393 Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* client/rpc: Add ping and msgs statsKrishnan Parthasarathi2014-07-313-0/+15
| | | | | | | | | | | | | | | | | | | This can be seen as below, ># cat $META/graphs/active/vol-client-0/private |grep ping_msgs_sent ping_msgs_sent = 2 ># cat $META/graphs/active/vol-client-0/private |grep "^msgs_sent" msgs_sent = 13 where $META is /<fuse-mountpt>/.meta Change-Id: I2107ec2b045bac701377760635e18758adb943a3 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/8285 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* nfs/drc: Fix memory corruptionsRaghavendra G2014-07-302-89/+55
| | | | | | | | | | | | | | | | * A wrong memory allocator was used to (de)allocate nodes (not data in them) of rb tree. This patch uses default allocator, since that suits our purpose. * Fix reference counting of client, though hitting the codepath containing this bug is highly unlikely. Change-Id: I7692097351d6e54288fee01da5af18e761fd0e8c Signed-off-by: Raghavendra G <rgowdapp@redhat.com> BUG: 1067256 Reviewed-on: http://review.gluster.org/7816 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* cli: Xml output for geo-replication status command.ndarshan2014-07-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds xml output for geo-replication status and status detail command. sample: -------------------------------------------------------------- <geoRep> <volume> <name>master</name> <sessions> <session> <session_slave>:2a301d66-b9d2-44b4-b827-d680d67123eb:ssh://XXXXXXXXXX::slave</session_slave> <pair> <master_node>localhost.localdomain</master_node> <master_node_uuid>2a301d66-b9d2-44b4-b827-d680d67123eb</master_node_uuid> <master_brick>/root/master_b1</master_brick> <slave>ssh://XXXXXXXXXXX::slave</slave> <status>faulty</status> <checkpoint_status>N/A</checkpoint_status> <crawl_status>N/A</crawl_status> </pair> </session> </sessions> </volume> </geoRep> ------------------------------------------------------------- Change-Id: Ia19dbe751c3ab1ec7cb8923cdd6c8b99c374072f BUG: 1121518 Signed-off-by: ndarshan <dnarayan@redhat.com> Reviewed-on: http://review.gluster.org/8089 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
* rpc: Do not reset @ping_started to 0 in ping callbackKrutika Dhananjay2014-07-093-12/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is to avoid indefinite recursion of the following kind, that could lead to a stack overflow: rpc_clnt_start_ping() -> rpc_clnt_ping() -> rpc_clnt_submit() -> rpc_clnt_start_ping() -> rpc_clnt_ping() -> rpc_clnt_submit() ... and so on, since it is possible that before rpc_clnt_start_ping() is called a second time by the thread executing this codepath, the response to previous ping request could ALWAYS come by and cause epoll thread to reset conn->ping_started to 0. This patch also fixes the issue of excessive ping traffic, which was due to the client sending one ping rpc for every fop in the worst case. Also removed dead code in glusterd. Change-Id: I7c5e6ae3b1c9d23407c0a12a319bdcb43ba7a359 BUG: 1116243 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8257 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* porting: Port for FreeBSD rebased from Mike Ma's effortsHarshavardhana2014-07-021-1/+1
| | | | | | | | | | | | | | | | | | | - Provides a working Gluster Management Daemon, CLI - Provides a working GlusterFS server, GlusterNFS server - Provides a working GlusterFS client - execinfo port from FreeBSD is moved into ./contrib/libexecinfo for ease of portability on NetBSD. (FreeBSD 10 and OSX provide execinfo natively) - More portability cleanups for Darwin, FreeBSD and NetBSD - Provides a new rc script for FreeBSD Change-Id: I8dff336f97479ca5a7f9b8c6b730051c0f8ac46f BUG: 1111774 Original-Author: Mike Ma <mikemandarine@gmail.com> Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8141 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* rpc/auth: allow SSL identity to be used for authorizationJeff Darcy2014-07-022-0/+5
| | | | | | | | | | | | | | | | | | | Access to a volume is now controlled by the following options, based on whether SSL is enabled or not. * server.ssl-allow: get identity from certificate, no password needed * auth.allow: get identity and matching password from command line It is not possible to allow both simultaneously, since the connection itself is either using SSL or it isn't. Change-Id: I5a5be66520f56778563d62f4b3ab35c66cc41ac0 BUG: 1114604 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/3695 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gNFS: Fix multi-homed m/c issue in NFS subdir authSantosh Kumar Pradhan2014-06-251-27/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | NFS subdir authentication doesn't correctly handle multi-homed (host with multiple NIC having multiple IP addr) OR multi-protocol (IPv4 and IPv6) network addresses. When user/admin sets HOSTNAME in gluster CLI for NFS subdir auth, mnt3_verify_auth() routine does not iterate over all the resolved n/w addrs returned by getaddrinfo() n/w API. Instead, it just tests with the one returned first. 1. Iterate over all the n/w addrs (linked list) returned by getaddrinfo(). 2. Move the n/w mask calculation part to mnt3_export_fill_hostspec() instead of doing it in mnt3_verify_auth() i.e. calculating for each mount request. It does not change for MOUNT req. 3. Integrate "subnet support code rpc-auth.addr.<volname>.allow" and "NFS subdir auth code" to remove code duplication. Change-Id: I26b0def52c22cda35ca11766afca3df5fd4360bf BUG: 1102293 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/8048 Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* glusterd: Fail peer probe/detach commands when peer detach is ongoingKrishnan Parthasarathi2014-06-161-0/+2
| | | | | | | | | | Change-Id: Ifd8099bc235eb395e8fd9ead3197bef71c78042b BUG: 1109812 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/8079 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Get snapshot info dynamically via new rpc and infra for snapview-server to ↵Anand Subramanian2014-06-151-0/+7
| | | | | | | | | | | refresh snaplist BUG: 1105439 Change-Id: I4bb312a53d88f6f4955e69a3ef2b4955ec17f26d Signed-off-by: Anand Subramanian <anands@redhat.com> Reviewed-on: http://review.gluster.org/8001 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cleanup: Fix order of arguments passed in log messageKrutika Dhananjay2014-06-131-1/+1
| | | | | | | | | Change-Id: Iae85cdfc223875688ea17155fffcf2a3a435d245 BUG: 764890 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8044 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* cleanup: Fix domain in log messageKrutika Dhananjay2014-06-121-1/+1
| | | | | | | | | Change-Id: I554b9bcacf6c8acd6dffea0a485fc50e82c3dc04 BUG: 764890 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/8043 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* rpc: Reconfigure() does not work for auth-rejectSantosh Kumar Pradhan2014-06-091-6/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: If volume is set for rpc-auth.addr.<volname>.reject with value as "host1", ideally the NFS mount from "host1" should FAIL. It works as expected. But when the volume is RESET, then previous value set for auth-reject should go off, and further NFS mount from "host1" should PASS. But it FAILs because of stale value in dict for key "rpc-auth.addr.<volname>.reject". It does not impact rpc-auth.addr.<volname>.allow key because, each time NFS volfile gets generated, allow key ll have "*" as default value. But reject key does not have default value. FIX: Delete the OLD value for key irrespective of anything. Add NEW value for the key, if and only if that is SET in the reconfigured new volfile. Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Change-Id: Ie80bd16cd1f9e32c51f324f2236122f6d118d860 BUG: 1103050 Reviewed-on: http://review.gluster.org/7931 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gNFS: Make NFS DRC off by defaultNiels de Vos2014-06-091-10/+9
| | | | | | | | | | | | | | | DRC in NFS causes memory bloat and there are known memory corruptions. It would be good to disable drc by default till the feature is stable. Change-Id: I93db6ef5298672c56fb117370bb582a5e5550b17 BUG: 1105524 Original-patch-by: Santosh Kumar Pradhan <spradhan@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/8004 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Handle rpc_connect failure in the event handlerVijaikumar M2014-06-051-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently rpc_connect calls the notification function on failure in the same thread, glusterd notification holds the big_lock and hence big_lock is released before rpc_connect In snapshot creation, releasing the big-lock before completeing operation can cause problem like deadlock or memory corruption. Bricks are started as part of snapshot created operation. brick_start releases the big_lock when doing brick_connect and this might cause glusterd crash. There is a similar issue in bug# 1088355. Solution is let the event handler handle the failure than doing it in the rpc_connect. Change-Id: I088d44092ce845a07516c1d67abd02b220e08b38 BUG: 1101507 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/7843 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* glusterd: Disable ping-timer between glusterd and brick processVijaikumar M2014-05-193-5/+9
| | | | | | | | | | | | | | | | | | | | | | When there are too many IO happening, brick process epoll thread will be busy and fails to respond to the glusterd pick packet within 30sec. Also epoll thread can be blocked by a big-lock. Solution is to disable ping-timer by default and only enable where ever required Later when the epoll thread model changed and made lighter, we need to revert back this change. http://review.gluster.com/3842 is one such approach. Change-Id: I7f80ad3eb00f7d9c4d4527305932f7cf4920e73f BUG: 1097224 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/7753 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpcsvc: Validate RPC procedure number before fetchSantosh Kumar Pradhan2014-05-171-6/+16
| | | | | | | | | | | | | | | | | | | | | While accessing the procedures of given RPC program in, rpcsvc_get_program_vector_sizer(), It was not checking boundary conditions which would cause buffer overflow and subsequently SEGV. Make sure rpcsvc_actor_t arrays have numactors number of actors. FIX: Validate the RPC procedure number before fetching the actor. Special Thanks to: Murray Ketchion, Grant Byers Change-Id: I8b5abd406d47fab8fca65b3beb73cdfe8cd85b72 BUG: 1096020 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/7726 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* libgfapi: Added support to fetch volume info from glusterd and store in ↵Soumya Koduri2014-05-111-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glfs object. Defined new APIs in the libgfapi module, given a glfs object, * to send handshake RPC call to glusterd process to fetch UUID of the volume * store it in the glusterfs_context linked to the glfs object. * to parse UUID from its cannonical string format into 16-byte array before sending it to the libgfapi users. Defined a RPC call in glusterd which can be used to query volume related info by other processes using 'clnt_handshake_procs'. Note - Currently this RPC call to glusterd process is used only to fetch UUID. But it can be extended to get other volume related structures as well. In addition to the above, defined a new variable to keep track of such handshake RPCs still in progress to make sure all the corresponding RPC callbacks have been processed before libgfapi returns the glfs object initialized. Also bumping up the GFAPI current version number since there is a new API "glfs_get_volume_id" defined and exposed by libgfapi as part of these changes. Change-Id: I303f76d7177d32d25bdb301b1dbcf5cd73f42807 BUG: 1090363 Signed-off-by: Soumya Koduri <skoduri@redhat.com> Reviewed-on: http://review.gluster.org/7218 Reviewed-by: Anand Avati <avati@redhat.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpc: don't stop sending ping packets to an active server.Krishnan Parthasarathi2014-05-062-40/+35
| | | | | | | | | | | | | - Removed an unnecessary ref on rpc_clnt object. - Removed saved_frames_delete function, which was unused. Change-Id: Ie8a9c4bb20c1fd59744b64b56eb043eca095e5e3 BUG: 1094655 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/7678 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* glusterd : Volname, brickpath & volfpath length validationAtin Mukherjee2014-05-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | While creating a volume and adding a brick validation for _POSIX_PATH_MAX is done on absolute pathname instead of relative pathname due to which a brickpath having less than _POSIX_PATH_MAX may also fail the validation if the directory length is greater than (_POSIX_PATH_MAX -strlen(brickpath/volume name). Also this fix addresses one cli response message correction which says the volume file is too long instead of brick path is too long (when brickpath length validation doesn't fail and vol file length validation fails.) It is also important to note that with the current design of volfile naming, it can not be guranteed that volname and brickpath can have max of _POSIX_PATH_MAX characters. Change-Id: I1283d1f9dea96ae797620002c8723719f26a866d BUG: 1085330 Signed-off-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-on: http://review.gluster.org/7420 Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd: Ping timer implmentationKrishnan Parthasarathi2014-04-297-4/+331
| | | | | | | | | | | | | | | | | | | | | | | | This patch refactors the existing client ping timer implementation, and makes use of the common code for implementing both client ping timer and the glusterd ping timer. A new gluster rpc program for ping is introduced. The ping timer is only started for peers that have this new program. The deafult glusterd ping timeout is 30 seconds. It is configurable by setting the option 'ping-timeout' in glusterd.vol . Also, this patch introduces changes in the glusterd-handshake path. The client programs for a peer are now set in the callback of dump_versions, for both the older handshake and the newer op-version handshake. This is the only place in the handshake process where we know what programs a peer supports. Change-Id: I035815ac13449ca47080ecc3253c0a9afbe9016a BUG: 1038261 Signed-off-by: Vijaikumar M <vmallika@redhat.com> Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/5202 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* cli: Add a cli command to enable/disable barrierKaushal M2014-04-291-0/+1
| | | | | | | | | | | | | | | 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: Add a barrier brick-opKaushal M2014-04-291-0/+1
| | | | | | | | | | | | | | | | This patch introduces a new 'barrier' brick-op which will be used to activate/deactivate the barriering on the bricks. This includes barriering in the barrier xlator and in the changelog xlator. All the required code has been including a bricks select function, a payload builder and a brick-op handler. Change-Id: I91d9d77f691c2e89823f7dc4e84900ec40dc4dd2 BUG: 1060002 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/6943 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd/snapshot: Compare and update snapshots during peer handshakeAvra Sengupta2014-04-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During a peer-handshake, after the volumes have synced, and the list of missed snapshots have synced, the node will perform the pending deletes and restores on this list. At this point, the current snapshot list in the node will be updated, and hence in case of conflicts arising during snapshot handshake, the peer hosting the bricks will be given precedence Likewise, if there will be a conflict, and both peers will be in the same state, i.e either both would be hosting bricks or both would not be hosting bricks, then a decision can't be taken and a peer-reject will happen. glusterd_compare_and_update_snap() implements the following algorithm to perform the above task: Step 1: Start. Step 2: Check if the peer is missing a delete on the said snap. If yes, goto step 6. Step 3: Check if there is a conflict between the peer's data and the local snap. If no, goto step 5. Step 4: As there is a conflict, check if both the peer and the local nodes are hosting bricks. Based on the results perform the following: Peer Hosts Bricks Local Node Hosts Bricks Action Yes Yes Goto Step 7 No No Goto Step 7 Yes No Goto Step 8 No Yes Goto Step 6 Step 5: Check if the local node is missing the peer's data. If yes, goto step 9. Step 6: It's a no-op. Goto step 10 Step 7: Peer Reject. Goto step 10 Step 8: Delete local node's data. Step 9: Accept Peer Data. Step 10: Stop Change-Id: I79be0f0f5f2a4f5c72277a4e77c2be732af432e1 BUG: 1061685 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7525 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gNFS: gNFS drc cache failed to detecte duplicates.Yuan Ding2014-04-281-4/+10
| | | | | | | | | | | | | | | | | | | After the drc cache get full, message "DRC failed to detect duplicates" keep printed in the log. The root cause is drc_compare_reqs use the wrong compare type. This function should use type drc_cache_op_t as its input type. Since all rbtree related code (except function rpcsvc_drc_lookup) in drc cache pass drc_cache_op_t as compare type. Only rpcsvc_drc_lookup use type rpcsvc_request_t. It has been modified too. Change-Id: I925c097debe6b82f267986961fd4e7755f3de9af BUG: 1089676 Signed-off-by: Yuan Ding <beback198611@gmail.com> Reviewed-on: http://review.gluster.org/7519 Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterd/snapshot-handshake: Perform handshake of missed_snaps_list.Avra Sengupta2014-04-251-1/+2
| | | | | | | | | | | | | | | | In a handshake, create a union of the missed_snap_lists of the two peers. If an entry is present, its no op. If an entry is pendng, and the peer entry is done, mark own entry as done. If an entry is done, and the peer ertry is pending, its a no-op. If its a new entry, add it. Change-Id: Idbfa49cc34871631ba8c7c56d915666311024887 BUG: 1061685 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/7453 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* rpcgen: Remove autogenerated files instead build on demandHarshavardhana2014-04-251-5/+8
| | | | | | | | | | | | | Avoid modifying autogenerated files and keeping them in repository - autogenerate them on demand from ".x" files Change-Id: I2cdb1fe9b99768ceb80a8cb100fa00bd1d8fe2c6 BUG: 1090807 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/7526 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* rpcsvc: Ignore INODELK/ENTRYLK/LK for throttlingPranith Kumar K2014-04-241-16/+54
| | | | | | | | | | | | | | | | | | | | | | Problem: When iozone is in progress, number of blocking inodelks sometimes becomes greater than the threshold number of rpc requests allowed for that client (RPCSVC_DEFAULT_OUTSTANDING_RPC_LIMIT). Subsequent requests from that client will not be read until all the outstanding requests are processed and replied to. But because no more requests are read from that client, unlocks on the already granted locks will never come thus the number of outstanding requests would never come down. This leads to a ping-timeout on the client. Fix: Do not account INODELK/ENTRYLK/LK for throttling Change-Id: I59c6b54e7ec24ed7375ff977e817a9cb73469806 BUG: 1089470 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/7531 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* build: MacOSX Porting fixesHarshavardhana2014-04-246-30/+45
| | | | | | | | | | | | | | | | | | | | | 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>
* gNFS: Support wildcard in RPC auth allow/rejectSantosh Kumar Pradhan2014-04-221-2/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RFE: Support wildcard in "nfs.rpc-auth-allow" and "nfs.rpc-auth-reject". e.g. *.redhat.com 192.168.1[1-5].* 192.168.1[1-5].*, *.redhat.com, 192.168.21.9 Along with wildcard, support for subnetwork or IP range e.g. 192.168.10.23/24 The option will be validated for following categories: 1) Anonymous i.e. "*" 2) Wildcard pattern i.e. string containing any ('*', '?', '[') 3) IPv4 address 4) IPv6 address 5) FQDN 6) subnetwork or IPv4 range Currently this does not support IPv6 subnetwork. Change-Id: Iac8caf5e490c8174d61111dad47fd547d4f67bf4 BUG: 1086097 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/7485 Reviewed-by: Poornima G <pgurusid@redhat.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gluster: GlusterFS Volume Snapshot FeatureAvra Sengupta2014-04-111-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | 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>
* rpc: warn and truncate grouplist if RPC/AUTH can not hold everythingNiels de Vos2014-04-083-8/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GlusterFS protocol currently uses AUTH_GLUSTERFS_V2 in the RPC/AUTH header. This header contains the uid, gid and auxiliary groups of the user/process that accesses the Gluster Volume. The AUTH_GLUSTERFS_V2 structure allows up to 65535 auxiliary groups to be passed on. Unfortunately, the RPC/AUTH header is limited to 400 bytes by the RPC specification: http://tools.ietf.org/html/rfc5531#section-8.2 In order to not cause complete failures on the client-side when trying to encode a AUTH_GLUSTERFS_V2 that would result in more than 400 bytes, we can calculate the expected size of the other elements: 1 | pid 1 | uid 1 | gid 1 | groups_len XX | groups_val (GF_MAX_AUX_GROUPS=65535) 1 | lk_owner_len YY | lk_owner_val (GF_MAX_LOCK_OWNER_LEN=1024) ----+------------------------------------------- 5 | total xdr-units one XDR-unit is defined as BYTES_PER_XDR_UNIT = 4 bytes MAX_AUTH_BYTES = 400 is the maximum, this is 100 xdr-units. XX + YY can be 95 to fill the 100 xdr-units. Note that the on-wire protocol has tighter requirements than the internal structures. It is possible for xlators to use more groups and a bigger lk_owner than that can be sent by a GlusterFS-client. This change prevents overflows when allocating the RPC/AUTH header. Two new macros are introduced to calculate the number of groups that fit in the RPC/AUTH header, when taking the size of the lk_owner in account. In case the list of groups exceeds the maximum possible, only the first groups are passed over the RPC/GlusterFS protocol to the bricks. A warning is added to the logs, so that most system administrators will get informed. The reducing of the number of groups is not a new inventions. The RPC/AUTH header (AUTH_SYS or AUTH_UNIX) that NFS uses has a limit of 16 groups. Most, if not all, NFS-clients will reduce any bigger number of groups to 16. (nfs.server-aux-gids can be used to workaround the limit of 16 groups, but the Gluster NFS-server will be limited to a maximum of 93 groups, or fewer in case the lk_owner structure contains more items.) Change-Id: I8410e59d0fd246d601b54b961d3ae9cb5a858c10 BUG: 1053579 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/7202 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
generated by cgit (git 2.34.1) at 2024-11-14 15:16:38 +0000