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* posix: Implement a janitor thread to close fdMohit Agrawal2020-08-201-6/+0
| | | | | | | | | | | | | | Problem: In the commit fb20713b380e1df8d7f9e9df96563be2f9144fd6 we use syntask to close fd but we have found the patch is reducing the performance Solution: Use janitor thread to close fd's and save the pfd ctx into ctx janitor list and also save the posix_xlator into pfd object to avoid the race condition during cleanup in brick_mux environment Change-Id: Ifb3d18a854b267333a3a9e39845bfefb83fbc092 Fixes: #1396 Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
* contrib: remove contrib/sunrpc/xdr_sizeof.cYaniv Kaul2020-07-231-1/+1
| | | | | | | | | It's not needed, and it has a license that Fedora is not very happy with. Just removed that file. Change-Id: Ia753f0058c8a7c6482aca40c3b3dc8f6aa4a266d Fixes: #1383 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* NetBSD build fixesEmmanuel Dreyfus2020-06-301-0/+4
| | | | | | | | | | | | | - Make sure -largp is used at link time - PTHREAD_MUTEX_ADAPTIVE_NP is not available, use PTHREAD_MUTEX_DEFAULT instead - Avoid non POSIX [[ ]] in scripts - Do not check of lock.spinlock is NULL since it is not a pointer (it is not a pointer on Linux either) Change-Id: I5e04a7c552d24f8a473c2b837828d1bddfa7e128 Fixes: #1347 Type: Bug Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
* rpc: fix undefined behaviour in __builtin_ctzDmitry Antipov2020-06-172-41/+15
| | | | | | | | | | | | | | | | | | | | | | | | Found with GCC UBsan: rpcsvc.c:102:36: runtime error: passing zero to ctz(), which is not a valid argument #0 0x7fcd1ff6faa4 in rpcsvc_get_free_queue_index /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:102 #1 0x7fcd1ff81e12 in rpcsvc_handle_rpc_call /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:837 #2 0x7fcd1ff833ad in rpcsvc_notify /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:1000 #3 0x7fcd1ff8829d in rpc_transport_notify /path/to/glusterfs/rpc/rpc-lib/src/rpc-transport.c:520 #4 0x7fcd0dd72f16 in socket_event_poll_in_async /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2502 #5 0x7fcd0dd8986a in gf_async ../../../../libglusterfs/src/glusterfs/async.h:189 #6 0x7fcd0dd8986a in socket_event_poll_in /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2543 #7 0x7fcd0dd8986a in socket_event_handler /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2934 #8 0x7fcd0dd8986a in socket_event_handler /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2854 #9 0x7fcd2048aff7 in event_dispatch_epoll_handler /path/to/glusterfs/libglusterfs/src/event-epoll.c:640 #10 0x7fcd2048aff7 in event_dispatch_epoll_worker /path/to/glusterfs/libglusterfs/src/event-epoll.c:751 ... Fix, simplify, and prefer 'unsigned long' as underlying bitmap type. Change-Id: If3f24dfe7bef8bc7a11a679366e219a73caeb9e4 Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Fixes: #1283
* Indicate timezone offsets in timestampsCsaba Henk2020-06-151-14/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Logs and other output carrying timestamps will have now timezone offsets indicated, eg.: [2020-03-12 07:01:05.584482 +0000] I [MSGID: 106143] [glusterd-pmap.c:388:pmap_registry_remove] 0-pmap: removing brick (null) on port 49153 To this end, - gf_time_fmt() now inserts timezone offset via %z strftime(3) template. - A new utility function has been added, gf_time_fmt_tv(), that takes a struct timeval pointer (*tv) instead of a time_t value to specify the time. If tv->tv_usec is negative, gf_time_fmt_tv(... tv ...) is equivalent to gf_time_fmt(... tv->tv_sec ...) Otherwise it also inserts tv->tv_usec to the formatted string. - Building timestamps of usec precision has been converted to gf_time_fmt_tv, which is necessary because the method of appending a period and the usec value to the end of the timestamp does not work if the timestamp has zone offset, but it's also beneficial in terms of eliminating repetition. - The buffer passed to gf_time_fmt/gf_time_fmt_tv has been unified to be of GF_TIMESTR_SIZE size (256). We need slightly larger buffer space to accommodate the zone offset and it's preferable to use a buffer which is undisputedly large enough. This change does *not* do the following: - Retaining a method of timestamp creation without timezone offset. As to my understanding we don't need such backward compatibility as the code just emits timestamps to logs and other diagnostic texts, and doesn't do any later processing on them that would rely on their format. An exception to this, ie. a case where timestamp is built for internal use, is graph.c:fill_uuid(). As far as I can see, what matters in that case is the uniqueness of the produced string, not the format. - Implementing a single-token (space free) timestamp format. While some timestamp formats used to be single-token, now all of them will include a space preceding the offset indicator. Again, I did not see a use case where this could be significant in terms of representation. - Moving the codebase to a single unified timestamp format and dropping the fmt argument of gf_time_fmt/gf_time_fmt_tv. While the gf_timefmt_FT format is almost ubiquitous, there are a few cases where different formats are used. I'm not convinced there is any reason to not use gf_timefmt_FT in those cases too, but I did not want to make a decision in this regard. Change-Id: I0af73ab5d490cca7ed8d07a2ce7ac22a6df2920a Updates: #837 Signed-off-by: Csaba Henk <csaba@redhat.com>
* rpc, gf_attach: add minimal proper synchronizationDmitry Antipov2020-06-032-0/+4
| | | | | | | | | | Implement minimal proper synchronization between gf_attach and underlying RPC layer using convenient POSIX primitives. Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Fixes: #1260 Change-Id: Ib5130b586a8b65ed5cf5f9156c111b161570224b
* test: tests/bugs/rpc/bug-847624.t is crashedMohit Agrawal2020-04-152-7/+8
| | | | | | | | | | | | | Problem: glusterfs(GNFS) is crashing at the time of handling Pollerr event in rpcsvc_drc_client_unref.GNFS is crashed because ref was 0 at the time of unref and ref was taken while Pollin event successfully handled. Solution: Convert drc_client ref to atomic ref to avoid the crash Change-Id: Ia4c054f2f388032a5cd99597d0cfa18b003ca690 Fixes: #1038 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* Posix: Use simple approach to close fdMohit Agrawal2020-03-201-0/+6
| | | | | | | | | | | | | | | Problem: posix_release(dir) functions add the fd's into a ctx->janitor_fds and janitor thread closes the fd's.In brick_mux environment it is difficult to handle race condition in janitor threads because brick spawns a single janitor thread for all bricks. Solution: Use synctask to execute posix_release(dir) functions instead of using background a thread to close fds. Credits: Pranith Karampuri <pkarampu@redhat.com> Change-Id: Iffb031f0695a7da83d5a2f6bac8863dad225317e Fixes: bz#1811631 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* feature/changelog: Avoid thread creation if xlator is not enabledMohit Agrawal2020-02-091-11/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Changelog creates threads even if the changelog is not enabled Background: Changelog xlator broadly does two things 1. Journalling - Cosumers are geo-rep and glusterfind 2. Event Notification for registered events like (open, release etc) - Consumers are bitrot, geo-rep The existing option "changelog.changelog" controls journalling and there is no option to control event notification and is enabled by default. So when bitrot/geo-rep is not enabled on the volume, threads and resources(rpc and rbuf) related to event notifications consumes resources and cpu cycle which is unnecessary. Solution: The solution is to have two different options as below. 1. changelog-notification : Event notifications 2. changelog : Journalling This patch introduces the option "changelog-notification" which is not exposed to user. When either bitrot or changelog (journalling) is enabled, it internally enbales 'changelog-notification'. But once the 'changelog-notification' is enabled, it will not be disabled for the life time of the brick process even after bitrot and changelog is disabled. As of now, rpc resource cleanup has lot of races and is difficult to cleanup cleanly. If allowed, it leads to memory leaks and crashes on enable/disable of bitrot or changelog (journal) in a loop. Hence to be safer, the event notification is not disabled within lifetime of process once enabled. Change-Id: Ifd00286e0966049e8eb9f21567fe407cf11bb02a Updates: #475 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* rpc-transport: minor changesYaniv Kaul2020-01-132-61/+32
| | | | | | | | | | - Removed dead code - Remove redundant checks - Changed dict functions to use dict_..._sizen() functions. Change-Id: If00aaa90eef4078effd5b7fed2294f872e001b0a updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* rpc: define xdr_sizeof regardless of whether IPv6 is the defaultAndrew Miloradovsky2019-12-131-2/+0
| | | | | Change-Id: I4f20f376d82b28e1c572c0fd0b6cd38e97b133da Fixes: bz#1780260
* pcsvc: fix subnet_mask_v4 checkAmar Tumballi2019-11-271-4/+7
| | | | | | | | | | The check we had for subnet mask validation wasn't checking in proper sequence. Corrected the order of calling `inet_pton()` as the fix. Fixes: #765 Change-Id: I5d31468eb917aa94cbb85f573b37c60023e9daf3 Signed-off-by: Amar Tumballi <amar@kadalu.io>
* rpc: align structsYaniv Kaul2019-10-175-45/+46
| | | | | | | | | | | | | squash tens of warnings on padding of structs in afr structures. The warnings were found by manually added '-Wpadded' to the GCC command line. Also made relevant structs and definitions static, where it was applicable. Change-Id: Ib71a7e9c6179378f072d796d11172d086c343e53 updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* rpc: fix missing unref on reconnectZhang Huan2019-10-021-6/+10
| | | | | | | | | | | | | | On protocol client connecting to brick, client will firstly contact glusterd to get port, then reconnect to glusterfsd. Reconnect cancels the reconnect timer and start a new one. However, cancelling the timer does not unref rpc ref-ed for it. That leads to refcount leak. Fix this issue by unref-ing rpc if reconnect timer is canceled. Change-Id: Ice89dcd93cb283a0c7250c369cc8961d52fb2022 Fixes: bz#1538900 BUG: 1538900 Signed-off-by: Zhang Huan <zhanghuan@open-fs.com>
* graph/cleanup: Fix race in graph cleanupMohammed Rafi KC2019-09-052-5/+5
| | | | | | | | | | | | | | | | | We were unconditionally cleaning up the grap when we get child_down followed by parent_down. But this is prone to race condition when some of the bricks are already disconnected. In this case, even before the last child down is executed in the client xlator code,we might have freed the graph. Because the child_down event is alreadt recevied. To fix this race, we have introduced a check to see if all client xlator have cleared thier reconnect chain, and called the child_down for last time. Change-Id: I7d02813bc366dac733a836e0cd7b14a6fac52042 fixes: bz#1727329 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* libglusterfs: remove dependency of rpcAmar Tumballi2019-08-161-8/+3
| | | | | | | | | | | | | | | | | | Goal: 'libglusterfs' files shouldn't have any dependency outside of the tree, specially the header files, shouldn't have '#include' from outside the tree. Fixes: * Had to introduce libglusterd so, methods and structures required for only mgmt/glusterd, and cli/ are separated from 'libglusterfs/' * Remove rpc/xdr/gen from build, which was used mainly so dependency for libglusterfs could be properly satisfied. * Move rpcsvc_auth_data to client_t.h, so all dependencies could be handled. Updates: bz#1636297 Change-Id: I0e80243a5a3f4615e6fac6e1b947ad08a9363fce Signed-off-by: Amar Tumballi <amarts@redhat.com>
* event: rename event_XXX with gf_ prefixedXiubo Li2019-07-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I hit one crash issue when using the libgfapi. In the libgfapi it will call glfs_poller() --> event_dispatch() in file api/src/glfs.c:721, and the event_dispatch() is defined by libgluster locally, the problem is the name of event_dispatch() is the extremly the same with the one from libevent package form the OS. For example, if a executable program Foo, which will also use and link the libevent and the libgfapi at the same time, I can hit the crash, like: kernel: glfs_glfspoll[68486]: segfault at 1c0 ip 00007fef006fd2b8 sp 00007feeeaffce30 error 4 in libevent-2.0.so.5.1.9[7fef006ed000+46000] The link for Foo is: lib_foo_LADD = -levent $(GFAPI_LIBS) It will crash. This is because the glfs_poller() is calling the event_dispatch() from the libevent, not the libglsuter. The gfapi link info : GFAPI_LIBS = -lacl -lgfapi -lglusterfs -lgfrpc -lgfxdr -luuid If I link Foo like: lib_foo_LADD = $(GFAPI_LIBS) -levent It will works well without any problem. And if Foo call one private lib, such as handler_glfs.so, and the handler_glfs.so will link the GFAPI_LIBS directly, while the Foo won't and it will dlopen(handler_glfs.so), then the crash will be hit everytime. The link info will be: foo_LADD = -levent libhandler_glfs_LIBADD = $(GFAPI_LIBS) I can avoid the crash temporarily by linking the GFAPI_LIBS in Foo too like: foo_LADD = $(GFAPI_LIBS) -levent libhandler_glfs_LIBADD = $(GFAPI_LIBS) But this is ugly since the Foo won't use any APIs from the GFAPI_LIBS. And in some cases when the --as-needed link option is added(on many dists it is added as default), then the crash is back again, the above workaround won't work. Fixes: #699 Change-Id: I38f0200b941bd1cff4bf3066fca2fc1f9a5263aa Signed-off-by: Xiubo Li <xiubli@redhat.com>
* multiple files: another attempt to remove includesYaniv Kaul2019-06-1415-35/+1
| | | | | | | | | | | | | | | | | | There are many include statements that are not needed. A previous more ambitious attempt failed because of *BSD plafrom (see https://review.gluster.org/#/c/glusterfs/+/21929/ ) Now trying a more conservative reduction. It does not solve all circular deps that we have, but it does reduce some of them. There is just too much to handle reasonably (dht-common.h includes dht-lock.h which includes dht-common.h ...), but it does reduce the overall number of lines of include we need to look at in the future to understand and fix the mess later one. Change-Id: I550cd001bdefb8be0fe67632f783c0ef6bee3f9f updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* Fix some "Null pointer dereference" coverity issuesXavi Hernandez2019-05-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | This patch fixes the following CID's: * 1124829 * 1274075 * 1274083 * 1274128 * 1274135 * 1274141 * 1274143 * 1274197 * 1274205 * 1274210 * 1274211 * 1288801 * 1398629 Change-Id: Ia7c86cfab3245b20777ffa296e1a59748040f558 Updates: bz#789278 Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
* Revert "rpc: implement reconnect back-off strategy"Amar Tumballi2019-05-212-18/+16
| | | | | | | | | | | | | | | This reverts commit 59841f7e1ff0511b04884015441a181a56d07bea. This revert is done as a 'possible' fix for frequent regression failures, which are random in nature too (ie, different tests fails in different runs). Why exactly this patch? Because this patch seemed like most probable candidate which got merged in last 15days, and after which regressions are failing more often. Updates: bz#1711827 Change-Id: I35333162fcd4064f9609525ca93c666053c6d959
* rpc: implement reconnect back-off strategyXavier Hernandez2019-05-112-16/+18
| | | | | | | | | | | | | | | When a connection failure happens, gluster tries to reconnect every 3 seconds. In some cases the failure is spurious, so a delay of 3 seconds could be unnecessarily long. This patch implements a back-off strategy that tries a reconnect as soon as 1 tenth of a second. If this fails, the time is doubled until it's around 3 seconds. After that, the reconnect is attempted every 3 seconds as before. Change-Id: Icb3fbe20d618f50cbbb599dce542b4e871c22149 Updates: bz#1193929 Signed-off-by: Xavier Hernandez <xhernandez@redhat.com>
* rpclib: slow floating point math and libmKaleb S. KEITHLEY2019-04-032-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In release-6 rpc/rpc-lib (libgfrpc) added the function get_rightmost_set_bit() which calls log2(3), a call that takes a floating point parameter. It's used thusly: right_most_unset_bit = get_rightmost_set_bit(...); (So is it really the right-most unset bit, or the right-most set bit?) It's unclear to me whether this is in the data path or not. If it is, it's rather scary to think about integer-to-float conversions and slow calls to libm functions in the data path. gcc and clang have __builtin_ctz() which returns the same result as get_rightmost_set_bit(), and does it substantially faster. Approx 20M iterations of get_rightmost_set_bit() took ~33sec of wall clock time on my devel machine, while 20M iterations of __builtin_ctz() took < 9sec; get_rightmost_set_bit() is 3x slower than __builtin_ctz(). And as a side benefit, we can again eliminate the need to link libgfrpc with libm. Change-Id: If9e7e80874577c52223f8125b385fc930de20699 updates: bz#1193929 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
* mgmt/shd: Implement multiplexing in self heal daemonMohammed Rafi KC2019-04-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Shd daemon is per node, which means they create a graph with all volumes on it. While this is a great for utilizing resources, it is so good in terms of performance and managebility. Because self-heal daemons doesn't have capability to automatically reconfigure their graphs. So each time when any configurations changes happens to the volumes(replicate/disperse), we need to restart shd to bring the changes into the graph. Because of this all on going heal for all other volumes has to be stopped in the middle, and need to restart all over again. Solution: This changes makes shd as a per volume daemon, so that the graph will be generated for each volumes. When we want to start/reconfigure shd for a volume, we first search for an existing shd running on the node, if there is none, we will start a new process. If already a daemon is running for shd, then we will simply detach a graph for a volume and reatach the updated graph for the volume. This won't touch any of the on going operations for any other volumes on the shd daemon. Example of an shd graph when it is per volume graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ --------- --------- ---------- | AFR-1 | | AFR-2 | | AFR-3 | -------- --------- ---------- A running shd daemon with 3 volumes will be like--> graph ----------------------- | debug-iostat | ----------------------- / | \ / | \ ------------ ------------ ------------ | volume-1 | | volume-2 | | volume-3 | ------------ ------------ ------------ Change-Id: Idcb2698be3eeb95beaac47125565c93370afbd99 fixes: bz#1659708 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* rpc: Remove duplicate codePranith Kumar K2019-03-283-77/+1
| | | | | | | | | | rpc_clnt_disable() and rpc_clnt_disconnect() have same code. Removed rpc_clnt_disconnect() and moved calls to rpc_clnt_disconnect() to rpc_clnt_disable() updates bz#1193929 Change-Id: I965f57cc1d5af36d266810125558b6f5e5f279d4 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* build: link libgfrpc with MATH_LIB (libm, -lm)Kaleb S. KEITHLEY2019-03-261-1/+1
| | | | | | | | | | | | | | | tl;dnr: libgfrpc.so calls log2(3) from libm; it should be explicitly linked with -lm the autoconf/automake/libtool stack is more or less forgiving on different distributions. On forgiving systems libtool will semi- magically link with implicit dependencies. But on Ubuntu, which seems to be tending toward being less forgiving, the link of libgfrpc will fail with an unresolved referencee to log2(3). Change-Id: I9fae09ddb81e49004fbea4d7d83b95fb64a484b0 updates: bz#1193929 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
* rpc/transport: Missing a ref on dict while creating transport objectMohammed Rafi KC2019-03-205-43/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | while creating rpc_tranpsort object, we store a dictionary without taking a ref on dict but it does an unref during the cleaning of the transport object. So the rpc layer expect the caller to take a ref on the dictionary before passing dict to rpc layer. This leads to a lot of confusion across the code base and leads to ref leaks. Semantically, this is not correct. It is the rpc layer responsibility to take a ref when storing it, and free during the cleanup. I'm listing down the total issues or leaks across the code base because of this confusion. These issues are currently present in the upstream master. 1) changelog_rpc_client_init 2) quota_enforcer_init 3) rpcsvc_create_listeners : when there are two transport, like tcp,rdma. 4) quotad_aggregator_init 5) glusterd: init 6) nfs3_init_state 7) server: init 8) client:init This patch does the cleanup according to the semantics. Change-Id: I46373af9630373eb375ee6de0e6f2bbe2a677425 updates: bz#1659708 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* core: implement a global thread poolXavi Hernandez2019-02-183-10/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a thread pool that is wait-free for adding jobs to the queue and uses a very small locked region to get jobs. This makes it possible to decrease contention drastically. It's based on wfcqueue structure provided by urcu library. It automatically enables more threads when load demands it, and stops them when not needed. There's a maximum number of threads that can be used. This value can be configured. Depending on the workload, the maximum number of threads plays an important role. So it needs to be configured for optimal performance. Currently the thread pool doesn't self adjust the maximum for the workload, so this configuration needs to be changed manually. For this reason, the global thread pool has been made optional, so that volumes can still use the thread pool provided by io-threads. To enable it for bricks, the following option needs to be set: config.global-threading = on This option has no effect if bricks are already running. A restart is required to activate it. It's recommended to also enable the following option when running bricks with the global thread pool: performance.iot-pass-through = on To enable it for a FUSE mount point, the option '--global-threading' must be added to the mount command. To change it, an umount and remount is needed. It's recommended to disable the following option when using global threading on a mount point: performance.client-io-threads = off To enable it for services managed by glusterd, glusterd needs to be started with option '--global-threading'. In this case all daemons, like self-heal, will be using the global thread pool. Currently it can only be enabled for bricks, FUSE mounts and glusterd services. The maximum number of threads for clients and bricks can be configured using the following options: config.client-threads config.brick-threads These options can be applied online and its effect is immediate most of the times. If one of them is set to 0, the maximum number of threads will be calcutated as #cores * 2. Some distributions use a very old userspace-rcu library (version 0.7) for this reason, some header files from version 0.10 have been copied into contrib/userspace-rcu and are used if the detected version is 0.7 or older. An additional change has been made to io-threads to prevent that threads are started when iot-pass-through is set. Change-Id: I09d19e246b9e6d53c6247b29dfca6af6ee00a24b updates: #532 Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
* clnt/rpc: ref leak during disconnect.Mohammed Rafi KC2019-02-121-1/+10
| | | | | | | | | | During disconnect cleanup, we are not cancelling reconnect timer, which causes a ref leak each time when a disconnect happen. Change-Id: I9d05d1f368d080e04836bf6a0bb018bf8f7b5b8a updates: bz#1659708 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
* Multiple files: reduce work while under lock.Yaniv Kaul2019-01-291-17/+13
| | | | | | | | | | | | | | | | | Mostly, unlock before logging. In some cases, moved different code that was not needed to be under lock (for example, taking time, or malloc'ing) to be executed before taking the lock. Note: logging might be slightly less accurate in order, since it may not be done now under the lock, so order of logs is racy. I think it's a reasonable compromise. Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: I2438710016afc9f4f62a176ef1a0d3ed793b4f89
* core: heketi-cli is throwing error "target is busy"Mohit Agrawal2019-01-242-0/+2
| | | | | | | | | | | | | | | Problem: At the time of deleting block hosting volume through heketi-cli , it is throwing an error "target is busy". cli is throwing an error because brick is not detached successfully and brick is not detached due to race condition to cleanp xprt associated with detached brick Solution: To avoid xprt specifc race condition introduce an atomic flag on rpc_transport Change-Id: Id4ff1fe8375a63be71fb3343f455190a1b8bb6d4 fixes: bz#1668190 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* rpc: use address-family option from vol fileMilind Changire2019-01-222-3/+3
| | | | | | | | | | | | | | | | | This patch helps enable IPv6 connections in the cluster. The default address-family is IPv4 without using this option explicitly. When address-family is set to "inet6" in the /etc/glusterfs/glusterd.vol file, the mount command-line also needs to have -o xlator-option="transport.address-family=inet6" added to it. This option also gets added to the brick command-line. Snapshot and gfapi use-cases should also use this option to pass in the inet6 address-family. Change-Id: I97db91021af27bacb6d7578e33ea4817f66d7270 fixes: bz#1635863 Signed-off-by: Milind Changire <mchangir@redhat.com>
* rpc-clnt: reduce transport connect log for EINPROGRESSKinglong Mee2019-01-071-1/+2
| | | | | | | | | | quotad and ganesha.nfsd prints many logs as, [rpc-clnt.c:1739:rpc_clnt_submit ] 0-<VOLUME_NAME>-quota: error returned while attempting to connect to host: (null), port 0 Change-Id: Ic0c815400619e4a87a772a51b19822920228c1ef Updates: bz#1596787 Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
* rpcsvc: Don't expect dictionary values to be availablePranith Kumar K2019-01-071-2/+2
| | | | | | | | | | | When reconfigure happens, string values from one dictionary are directly set in another dictionary. This can lead to invalid memory when the first dictionary is freed up. So do dict_set_dynstr_with_alloc instead of dict_set_str updates bz#1650403 Change-Id: Id53236467521cfdeb07e7178d87ba6cf88d17003 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* rpc/rpc-lib: fix coverity issueSheetal Pamecha2018-12-281-4/+0
| | | | | | | | | | | Defect: Code can never be reached because of the condition queue_index > 1024 cannot be true. CID: 1398471 Logically dead code updates: bz#789278 Change-Id: I367cda7e734f6d774900a58d8664cffcab69126f Signed-off-by: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
* rpc : fix coverity in rpc/rpc-lib/src/rpcsvc.cSunny Kumar2018-12-281-2/+2
| | | | | | | | | | This patch fixes newly introduced coverity. CID: 1398472: Dereference before null check. updates: bz#789278 Change-Id: Ie9b13084097de8f24b138acd7608c3e15b3bba9c Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
* rpc: Use adaptive mutex in rpcsvc_program_registerMohit Agrawal2018-12-201-2/+8
| | | | | | | | | | Adaptive mutexes are used to protect critical/shared data items that are held for short periods.It provides a balance between spin locks and traditional mutex.We have observed after use adaptive mutex in rpcsvc_program_register got some improvement. Change-Id: I7905744b32516ac4e4ca3c83c2e8e5e306093add fixes: bz#1660701
* clang: Fix various missing checks for empty listShyamsundarR2018-12-141-3/+1
| | | | | | | | | | | | | | | | | | | | When using list_for_each_entry(_safe) functions, care needs to be taken that the list passed in are not empty, as these functions are not empty list safe. clag scan reported various points where this this pattern could be caught, and this patch fixes the same. Additionally the following changes are present in this patch, - Added an explicit op_ret setting in error case in the macro MAKE_INODE_HANDLE to address another clang issue reported - Minor refactoring of some functions in quota code, to address possible allocation failures in certain functions (which in turn cause possible empty lists to be passed around) Change-Id: I1e761a8d218708f714effb56fa643df2a3ea2cc7 Updates: bz#1622665 Signed-off-by: ShyamsundarR <srangana@redhat.com>
* rpc: Resolve memory leak in mgmt_pmap_signout_cbkMohit Agrawal2018-12-121-0/+6
| | | | | | | | | | | | Problem: At the time of submit signout request to mgmt rpc_clnt_mgmt_pmap_signout create a frame but in cbk frame is not destroyed Solution: cleanup frame in mgmt_pmap_signout_cbk to avoid leak Change-Id: I9961cacb2e02c8023c4c99e22e299b8729c2b09f fixes: bz#1658045 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* copy_file_range support in GlusterFSRaghavendra Bhat2018-12-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * libglusterfs changes to add new fop * Fuse changes: - Changes in fuse bridge xlator to receive and send responses * posix changes to perform the op on the backend filesystem * protocol and rpc changes for sending and receiving the fop * gfapi changes for performing the fop * tools: glfs-copy-file-range tool for testing copy_file_range fop - Although, copy_file_range support has been added to the upstream fuse kernel module, no release has been made yet of a kernel which contains the support. It is expected to come in the upcoming release of linux-4.20 So, as of now, executing copy_file_range fop on a fused based filesystem results in fuse kernel module sending read on the source fd and write on the destination fd. Therefore a small gfapi based tool has been written to be able test the copy_file_range fop. This tool is similar (in functionality) to the example program given in copy_file_range man page. So, running regular copy_file_range on a fuse mount point and running gfapi based glfs-copy-file-range tool gives some idea about how fast, the copy_file_range (or reflink) can be. On the local machine this was the result obtained. mount -t glusterfs workstation:new /mnt/glusterfs [root@workstation ~]# cd /mnt/glusterfs/ [root@workstation glusterfs]# ls file [root@workstation glusterfs]# cd [root@workstation ~]# time /tmp/a.out /mnt/glusterfs/file /mnt/glusterfs/new real 0m6.495s user 0m0.000s sys 0m1.439s [root@workstation ~]# time glfs-copy-file-range $(hostname) new /tmp/glfs.log /file /rrr OPEN_SRC: opening /file is success OPEN_DST: opening /rrr is success FSTAT_SRC: fstat on /rrr is success copy_file_range successful real 0m0.309s user 0m0.039s sys 0m0.017s This tool needs following arguments 1) hostname 2) volume name 3) log file path 4) source file path (relative to the gluster volume root) 5) destination file path (relative to the gluster volume root) "glfs-copy-file-range <hostname> <volume> <log file path> <source> <destination>" - Added a testcase as well to run glfs-copy-file-range tool * io-stats changes to capture the fop for profiling * NOTE: - Added conditional check to see whether the copy_file_range syscall is available or not. If not, then return ENOSYS. - Added conditional check for kernel minor version in fuse_kernel.h and fuse-bridge while referring to copy_file_range. And the kernel minor version is kept as it is. i.e. 24. Increment it in future when there is a kernel release which contains the support for copy_file_range fop in fuse kernel module. * The document which contains a writeup on this enhancement can be found at https://docs.google.com/document/d/1BSILbXr_knynNwxSyyu503JoTz5QFM_4suNIh2WwrSc/edit Change-Id: I280069c814dd21ce6ec3be00a884fc24ab692367 updates: #536 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
* libglusterfs: Move devel headers under glusterfs directoryShyamsundarR2018-12-0519-61/+61
| | | | | | | | | | | | | | | | | | | | | | | | libglusterfs devel package headers are referenced in code using include semantics for a program, this while it works can be better especially when dealing with out of tree xlator builds or in general out of tree devel package usage. Towards this, the following changes are done, - moved all devel headers under a glusterfs directory - Included these headers using system header notation <> in all code outside of libglusterfs - Included these headers using own program notation "" within libglusterfs This change although big, is just moving around the headers and making it correct when including these headers from other sources. This helps us correctly include libglusterfs includes without namespace conflicts. Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b Updates: bz#1193929 Signed-off-by: ShyamsundarR <srangana@redhat.com>
* protocol/server: support server.all-squashXie Changlong2018-12-053-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | We still use gnfs on our side, so do a little work to support server.all-squash. Just like server.root-squash, it's also a volume wide option. Also see bz#1285126 $ gluster volume set <VOLNAME> server.all-squash on Note: If you enable server.root-squash and server.all-squash at the same time, only server.all-squash works. Please refer to following table +---------------+-----------------+---------------------------+ | |all_squash | no_all_squash | +-------------------------------------------------------------+ | | |anonuid/anongid for root | |root_squash |anonuid/anongid |useruid/usergid for no-root| +-------------------------------------------------------------+ |no_root_squash |anonuid/anongid |useruid/usergid | +-------------------------------------------------------------+ Updates bz#1285126 Signed-off-by: Xie Changlong <xiechanglong@cmss.chinamobile.com> Signed-off-by: Xue Chuanyu <xuechuanyu@cmss.chinamobile.com> Change-Id: Iea043318fe6e9a75fa92b396737985062a26b47e
* rpc: check if fini is there before calling itRaghavendra Bhat2018-12-041-1/+3
| | | | | | | | | | | | | | | The rpc_transport_t structure is allocated and filled in the rpc_transport_load function. If filling the fileds of the rpc structure fails, then in the failure handling the structure is freed by rpc_transport_cleanup. There, it unconditionally calls fini. But, if the failure handling was invoked because of any failure in between the allocation of rpc_transport_t and filling the transport->fini (including the failure to fill fini ()), then rpc_transport_cleanup can lead to a segfault. Change-Id: I8be9b84cd6b19933c559c9736198a6e440373f68 fixes: bz#1654917 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
* server: Resolve memory leak path in server_initMohit Agrawal2018-12-035-9/+66
| | | | | | | | | | | | | | Problem: 1) server_init does not cleanup allocate resources while it is failed before return error 2) dict leak at the time of graph destroying Solution: 1) free resources in case of server_init is failed 2) Take dict_ref of graph xlator before destroying the graph to avoid leak Change-Id: I9e31e156b9ed6bebe622745a8be0e470774e3d15 fixes: bz#1654917 Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
* rpc *.h fles: align structsYaniv Kaul2018-12-036-58/+56
| | | | | | | | Make an effort to slightly better align the structures. Change-Id: I6f80a451f2ffbf15adfb986cedc24c2799787b49 updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* rpcsvc: provide each request handler thread its own queueRaghavendra Gowdappa2018-11-297-134/+327
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A single global per program queue is contended by all request handler threads and event threads. This can lead to high contention. So, reduce the contention by providing each request handler thread its own private queue. Thanks to "Manoj Pillai"<mpillai@redhat.com> for the idea of pairing a single queue with a fixed request-handler-thread and event-thread, which brought down the performance regression due to overhead of queuing significantly. Thanks to "Xavi Hernandez"<xhernandez@redhat.com> for discussion on how to communicate the event-thread death to request-handler-thread. Thanks to "Karan Sandha"<ksandha@redhat.com> for voluntarily running the perf benchmarks to qualify that performance regression introduced by ping-timer-fixes is fixed with this patch and patiently running many iterations of regression tests while RCAing the issue. Thanks to "Milind Changire"<mchangir@redhat.com> for patiently running the many iterations of perf benchmarking tests while RCAing the regression caused by ping-timer-expiry fixes. Change-Id: I578c3fc67713f4234bd3abbec5d3fbba19059ea5 Fixes: bz#1644629 Signed-off-by: Raghavendra Gowdappa <rgowdapp@redhat.com>
* core: fix strncpy warningsKaleb S. KEITHLE2018-11-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since gcc-8.2.x (fedora-28 or so) gcc has been emitting warnings about buggy use of strncpy. Most uses that gcc warns about in our sources are exactly backwards; the 'limit' or len is the strlen/size of the _source param_, giving exactly zero protection against overruns. (Which was, after all, one of the points of using strncpy in the first place.) IOW, many warnings are about uses that look approximately like this: ... char dest[8]; char src[] = "this is a string longer than eight chars"; ... strncpy (dest, src, sizeof(src)); /* boom */ ... The len/limit should be sizeof(dest). Note: the above example has a definite over-run. In our source the overrun is typically only theoretical (but possibly exploitable.) Also strncpy doesn't null-terminate on truncation; snprintf does; prefer snprintf over strncpy. Mildly surprising that coverity doesn't warn/isn't warning about this. Change-Id: I022d5c6346a751e181ad44d9a099531c1172626e updates: bz#1193929 Signed-off-by: Kaleb S. KEITHLE <kkeithle@redhat.com>
* rpc/rpc-lib/src/rpc-clnt.c: unlock sooner, if we fail to connect.Yaniv Kaul2018-11-151-15/+11
| | | | | | | | | | | | Previously, we did not go to unlock the mutex if we failed to connect. This patch fixes it. Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: I0fcca066a2601dba6bc3e9eb8b3c9fc757ffe4db
* rpc-clnt*: several code changes to reduce conn lock timesYaniv Kaul2018-11-123-55/+25
| | | | | | | | | | | | | | Assorted code refactoring to reduce lock contention. Also, took the opportunity to reorder structs more properly. Removed dead code. Hopefully, no functional changes. Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: I5de6124ad071fd5e2c31832364d602b5f6d6fe28
* all: fix the format string exceptionsAmar Tumballi2018-11-051-2/+2
| | | | | | | | | | | | | | | | Currently, there are possibilities in few places, where a user-controlled (like filename, program parameter etc) string can be passed as 'fmt' for printf(), which can lead to segfault, if the user's string contains '%s', '%d' in it. While fixing it, makes sense to make the explicit check for such issues across the codebase, by making the format call properly. Fixes: CVE-2018-14661 Fixes: bz#1644763 Change-Id: Ib547293f2d9eb618594cbff0df3b9c800e88bde4 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* rpc/rpc-lib: Uninitialized argument value of a functionHarpreet Lalwani2018-10-231-0/+3
| | | | | | | | | | | trav->saved_at.tv_sec is not initialized. Calling "list_empty" function before initializing "trav". Updates: bz#1622665 Change-Id: Ib5c2703a07a9c56ccd115001aca500f7a23c4a2e Signed-off-by: Harpreet Lalwani <hlalwani@redhat.com>
generated by cgit (git 2.34.1) at 2024-04-16 20:36:45 +0000