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* jbr: Sending rollback from failed fop to fdlAvra Sengupta2016-11-0812-34/+327
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of a failed fop, the failure is detected by the leader in the jbr-server in two places. First during a quorum check of +ve responses when it receives responses from all the followers. At this point if the fop hasn't been successfully journaled at a quorum of followers (as in there is no merit in trying the fop in the leader as the quorum will never be met), then we fail the fop. Also if this quorum is met, then the fop is tried on the leader, and after the leader completes the fop a quorum check similar to the previous one is done again, this time including the leaders outcome. If quorum is not met, then we fail the fop. In both these cases, when the fop fails we send a -ve ack to the client. With this patch, now we will also send a rollback through a GF_FOP_IPC to all the followers(and also to the leader in the second case of failure). This rollback will contain the index and term number of the fop which failed. This will be recorded in the respective journals of the bricks and will be used to rollback the fop on that brick later. A subsequent write, and it's respective rollback would look something like the following in the journal. The trusted.jbr.term and trusted.jbr.index present in the dict of both the logs, relate them, and the presence of "rollback-fop" in the dict of IPC indicates that it is a rollback fop, and the value 13(stands for GF_FOP_WRITE) indicates what kind of rollback operation it is. === GF_FOP_WRITE fd = <gfid 77f12ea2-ca56-40e3-a46e-ba2308baa035> vector = <158 bytes> offset = 0 (0x0) flags = 32769 (0x8001) xdata = dict { trusted.jbr.term = 0 <2 bytes> trusted.jbr.index = 4 <2 bytes> } === GF_FOP_IPC xdata = dict { trusted.jbr.term = 0 <2 bytes> trusted.jbr.index = 4 <2 bytes> rollback-fop = 13 <3 bytes> } Change-Id: I70b6a143d20697153d58e2f719e34ecd1ed160a5 BUG: 1349385 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/14783 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org>
* build: out-of-tree builds generates files in the wrong directoryKaleb S KEITHLEY2016-09-188-20/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And minor cleanup of a few of the Makefile.am files while we're at it. Rewrite the make rules to do what xdrgen does. Now we can get rid of xdrgen. Note 1. netbsd6's sed doesn't do -i. Why are we still running smoke tests on netbsd6 and not netbsd7? We barely support netbsd7 as it is. Note 2. Why is/was libgfxdr.so (.../rpc/xdr/src/...) linked with libglusterfs? A cut-and-paste mistake? It has no references to symbols in libglusterfs. Note3. "/#ifndef\|#define\|#endif/" (note the '\'s) is a _basic_ regex that matches the same lines as the _extended_ regex "/#(ifndef|define|endif)/". To match the extended regex sed needs to be run with -r on Linux; with -E on *BSD. However NetBSD's and FreeBSD's sed helpfully also provide -r for compatibility. Using a basic regex avoids having to use a kludge in order to run sed with the correct option on OS X. Note 4. Not copying the bit of xdrgen that inserts copyright/license boilerplate. AFAIK it's silly to pretend that machine generated files like these can be copyrighted or need license boilerplate. The XDR source files have their own copyright and license; and their copyrights are bound to be more up to date than old boilerplate inserted by a script. From what I've seen of other Open Source projects -- e.g. gcc and its C parser files generated by yacc and lex -- IIRC they don't bother to add copyright/license boilerplate to their generated files. It appears that it's a long-standing feature of make (SysV, BSD, gnu) for out-of-tree builds to helpfully pretend that the source files it can find in the VPATH "exist" as if they are in the $cwd. rpcgen doesn't work well in this situation and generates files with "bad" #include directives. E.g. if you `rpcgen ../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.x`, you get an #include directive in the generated .c file like this: ... #include "../../../../$srcdir/rpc/xdr/src/glusterfs3-xdr.h" ... which (obviously) results in compile errors on out-of-tree build because the (generated) header file doesn't exist at that location. Compared to `rpcgen ./glusterfs3-xdr.x` where you get: ... #include "glusterfs3-xdr.h" ... Which is what we need. We have to resort to some Stupid Make Tricks like the addition of various .PHONY targets to work around the VPATH "help". Warning: When doing an in-tree build, -I$(top_builddir)/rpc/xdr/... looks exactly like -I$(top_srcdir)/rpc/xdr/... Don't be fooled though. And don't delete the -I$(top_builddir)/rpc/xdr/... bits Change-Id: Iba6ab96b2d0a17c5a7e9f92233993b318858b62e BUG: 1330604 Signed-off-by: Kaleb S KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/14085 Tested-by: Niels de Vos <ndevos@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* jbr: fix unused variable warnings/errorsKaleb S. KEITHLEY2016-08-292-5/+3
| | | | | | | | | | | | | | | | | http://review.gluster.org/14085 fixes a/the "leak" - via the generated rpc/xdr headers - of pragmas that mask these warnings. However 14085 won't pass the smoke test until all the warnings are fixed. Change-Id: I68c210f3bcc0f7754a89095c0d1408d57d5bd4a2 BUG: 1369124 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/15244 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* dict: Don't expose get_new_dict/dict_destroyPranith Kumar K2016-07-251-2/+2
| | | | | | | | | | | | | | | get_new_dict/dict_destroy is causing confusion where, dict_new/dict_destroy or get_new_dict/dict_unref are used instead of dict_new/dict_unref. Change-Id: I4cc69f5b6711d720823395e20fd624a0c6c1168c BUG: 1296043 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/13183 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
* jbr: coverity, resource leakZhou Zhengping2016-07-221-0/+2
| | | | | | | | | | | | | Change-Id: I62428808ce52569ff0298b0fcdd07cbaec1621dc BUG: 1358944 CID: 1357871 Signed-off-by: Zhou Zhengping <johnzzpcrystal@gmail.com> Reviewed-on: http://review.gluster.org/14977 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* core: use readdir(3) with glibc, and associated cleanupKaleb S. KEITHLEY2016-07-181-28/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting with glibc-2.23 (i.e. what's in Fedora 25), readdir_r(3) is marked as deprecated. Specifically the function decl in <dirent.h> has the deprecated attribute, and now warnings are thrown during the compile on Fedora 25 builds. The readdir(_r)(3) man page (on Fedora 25 at least) and World+Dog say that glibc's readdir(3) is, and always has been, MT-SAFE as long as only one thread is accessing the directory object returned by opendir(). World+Dog also says there is a potential buffer overflow in readdir_r(). World+Dog suggests that it is preferable to simply use readdir(). There's an implication that eventually readdir_r(3) will be removed from glibc. POSIX has, apparently deprecated it in the standard, or even removed it entirely. Over and above that, our source near the various uses of readdir(_r)(3) has a few unsafe uses of strcpy()+strcat(). (AFAIK nobody has looked at the readdir(3) implemenation in *BSD to see if the same is true on those platforms, and we can't be sure of MacOS even though we know it's based on *BSD.) Change-Id: I5481f18ba1eebe7ee177895eecc9a80a71b60568 BUG: 1356998 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/14838 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* build: correctly format some (s)size_t messagesNiels de Vos2016-07-171-1/+1
| | | | | | | | | | | | | | | | | | On 32-bit builds the are are warnings like these: posix.c:6438: warning: format '%ld' expects type 'long int', but argument 11 has type 'ssize_t' Instead of using "%l" for (signed) size_t variables, "%z" should be used. BUG: 1198849 Change-Id: I6f57b5e8ea174dd9e3056aff5da685e497894ccf Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/14933 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org>
* posix2: Creation of experimental shell for posix2 xlatorShyam2016-06-0813-1/+208
| | | | | | | | | | | | | | | DHT2 comes with a new backend on-disk format, that requires a new backend storage xlator. This experimental project will house the artifacts for the same. Change-Id: I71a3d60a0415d0c23b2294a02b838810fa8f101f BUG: 1338991 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/14646 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* core: assorted spelling mistakes reported by DebianKaleb S KEITHLEY2016-05-261-1/+1
| | | | | | | | | | | | | | | | | See also > Change-Id: I567a4be8f0f31f6285550f243fe802895f6bc43b Reported-by: Patrick Matthäi <pmatthaei@debian.org> BUG: 1336793 Change-Id: Icb9a6ff94d86663a5bca4ba931d810439c02556e Signed-off-by: Kaleb S KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/14526 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Ravishankar N <ravishankar@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* jbr/locking: Define path for lock/unlock fops in JBRAvra Sengupta2016-05-264-39/+421
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lock/unlock fops need to be handled differently than other 'regular' fops, so as to avoid chances of deadlock in blocking calls. This patch addresses the same in the following manner, with a caveat. 1. On receiving the fop if the node is a follower, it performs the operation (irrespective of it being lock/unlock fop), and returns the result. 2. If the node is a leader it follows the following paths for lock and unlock fops: For lock fops : -> It performs the fop on itself. If it is a failure, it sends -ve ack to the client. If it is successful, it dispatches the fop to the followers. -> On receiving responses from the followers, it checks for quorum (including the leader's outcome). If quorum is met, it sends +ve ack to the client. -> If quorum is not met, then it *should* issue a rollback to the followers, followed by the rollback on the leader. It should then send -ve ack to he client. For unlock fops: -> It dispatches the fop on the followers first. -> On receiving responses from the followers, it performs the fop on itself. On completion, it checks for quorum (including the leader's outcome). If quorum is met, it sends +ve ack to the client. -> If quorum is not met, then it *should* issue a rollback on itslef, followed by the rollback on the followers. It should then send -ve ack to he client. Caveat: -> jbr-server does not have a rollback framework yet, and hence this patch does not perform the rollbacks as discussed in the failure scenarios above. The rollback framework will be a different dependent patch. Change-Id: I26961b27cb85f324c1ffeee80e82ec082ffa4465 BUG: 1333370 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/14226 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* jbr: Making fop functions more modular to reuse more codeAvra Sengupta2016-05-253-124/+313
| | | | | | | | | | | | | | | | | | | | | | | Putting bigger chunks of re-usable code like leader checks and init into functions thereby reducing the size of the 'fop' call. Introduced 'perform_local_op' in the 'fop' call, where regular functions as of now just call dispatch, but fops like 'lk' can do their fop specific operations. Introduced selective_generate to allow certain functions for a particular fop to be generated. The rest of the functions can be customised and added in jbr.c Change-Id: I3754ed68983e763329e14a2faef911428e36e4f0 BUG: 1336328 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/14355 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* nsr/jbr: Renaming nsr to jbrAvra Sengupta2016-04-2516-399/+399
| | | | | | | | | | | | | | | As per community consensus, we have decided to rename nsr to jbr(Journal-Based-Replication). This is the patch to rename the "nsr" code to "jbr" Change-Id: Id2a9837f2ec4da89afc32438b91a1c302bb4104f BUG: 1328043 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/13899 Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* fdl: fix "used before set" warnings in libreconJeff Darcy2016-04-011-1/+23
| | | | | | | | | | | | Newer compilers were complaining about this in generated code, because cleanup code fragments were being added in the wrong order. Change-Id: I90ff6eccfa78dc012da6d8fd83443490a3cb276d Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/13891 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
* fdl: fix make cleanPrasanna Kumar Kalever2016-04-011-1/+2
| | | | | | | | | | | | | | add fdl/src/librecon.c to CLEANFILES Change-Id: I91332ddda5b4157483389c32b74d90a6a4e1322a BUG: 1322323 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-on: http://review.gluster.org/13850 Tested-by: Prasanna Kumar Kalever <pkalever@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com>
* nsr: Introducing a happy path test caseAvra Sengupta2016-03-315-20/+197
| | | | | | | | | | | | | | | | | Write infra for nsr_server to not send a CHILD_UP before it gets a CHILD_UP from a quorum of it's children. Using the CHILD_UP received in the nsr client translator from the server, to decide the right time for starting the I/Os Change-Id: I9551638b306bdcbc6bae6aeda00316576ea832fe Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/13623 CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* dht2: Creation of experimental shell for dht2Shyam2016-03-2411-1/+235
| | | | | | | | | | Change-Id: I1aa3ea25f99d36fa2356edaa4c3132386adef303 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/13397 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* fdl: fix race during initializationJeff Darcy2016-03-101-7/+7
| | | | | | | | | | | | | | | | | | | | | | There was a race between fdl_worker starting to run and setting this->private in fdl_init. This should never happen on a multiprocessor, since the new thread should start on a different core and creating it there should take many times longer than getting from pthread_create to the end of fdl_init on the original core. The only way it seems likely is if the new thread is started on the same core that's already in fdl_init, and the new thread preempts the old, which many would consider broken . . . but there are plenty of broken thread implementations and it's hardly surprising that glibc has one. Still, it's a race and it did show up in regression tests a few times, so it needs to be fixed. Change-Id: Ifa5b0ae1ec111860f0d3f55a98aa2b8f2cef84ca Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/13674 Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* nsr-server: fix (?) ENODATA problem on FreeBSDJeff Darcy2016-03-101-0/+1
| | | | | | | | | | | Change-Id: I5f16a04e34a37e1f4cef38d75aff3479429473e3 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/13625 Tested-by: Avra Sengupta <asengupt@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Avra Sengupta <asengupt@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
* experimental: add fdl (Full Data Logging) translatorJeff Darcy2016-02-1312-1/+1801
| | | | | | | | | | | | | | | | | | | | | | | | NSR needs logging that is different than our existing changelog in several ways: * Full data, not just metadata * Pre-op, not post-op * High performance * Supports the concept of time-bounded "terms" Others (for example EC) might need the same thing. This patch adds such a translator. It also adds code to dump the resulting journals, and to replay them using syncops, plus (very rudimentary) tests for all of the above. Change-Id: I29680a1b4e0a9e7d5a8497fef302c46434b86636 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/12450 Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* NSR : nsr server code generation patchJeff Darcy2016-02-118-1/+1824
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NSR-server with this patch, appoints the first node on every replica subvolume, as the leader for that subvolume. On receiving a 'write' fop, the leader first checks if there is quorum in the replica subvolume to proceeed. In case there isn't it fails with EROFS. If there is quorum, the leader forwards the fop to the followers. The followers on receiving the fop, perform the operation, and based on the success or failure of the outcome send a +ve or a -ve ack to the leader. The leader after receiving acks from the followers performs a quorum check of the acks, to see if it should even try to perform the fop. If quorum is not being met, and the leader's outcome wouldn't affect quorum, then it would send -ve ack to the client without even performing the fop. If quorum is being met, the leader will then try the fop on itself, and based on it's outcome perform a quorum check of all the acks received (this time, including it's own). Based on the result of the quorum check (irrespective of the outcome on the leader), a +ve or -ve ack is send back to the client. Change-Id: I860654b74c53e9b139b37dba43848e5504df6dce Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/12705 Smoke: Gluster Build System <jenkins@build.gluster.com> Tested-by: Jeff Darcy <jdarcy@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* NSR: nsr client code generation patchJeff Darcy2016-02-098-1/+533
| | | | | | | | | | | | | | | | | | This version of the client checks if the error returned is EREMOTE or ENOTCONN, and if not unwnds the error back In case of a EREMOTE or ENOTCONN error, it retries on all the bricks in the replica subgroup, and if the error still persists, it waits for a sec before going through the same exercise again. Change-Id: I916bed32f0820f381dd60fdde3d05b71c69a34dc Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/12388 Smoke: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
* core: Add experimental xlator directoryShyam2015-11-182-0/+110
Added an experimental xlator directory under ./xlators/ The intent of this directory is presented in the README.md that accompanies this commit. This directory can be disabled from being compiled using, - configure --disable-experimental Change-Id: I047f380c91a082d111432f8bbdbd4d7bdcbaa809 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/12321 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
generated by cgit (git 2.34.1) at 2024-11-12 18:57:24 +0000