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* all: fix the format string exceptionsAmar Tumballi2018-11-053-12/+12
| | | | | | | | | | | | | | | | 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>
* dht: fix use after free in dht_rmdir_readdirp_cbkKinglong Mee2018-11-051-8/+11
| | | | | | | | | The frame is freed when linkfile exist in dht_rmdir_is_subvol_empty(), the following message use the freed local. Change-Id: I41191e8bd477f031a2444d5f15e578dc4f086e6b Updates: bz#1640489 Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
* tiering: remove the translator from build and glusterdAmar Tumballi2018-11-022-27/+3
| | | | | | | | | | | | | Based on the proposal to remove few features as they are not actively maintained [1], removing tier translator from the build. Also make sure there are no regression tests involving tiering feature are present. [1] https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html Change-Id: I2c177f711f9b54b7b24e1a13525ff3132bd9a9c5 updates: bz#1642807 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* cluster/ec: prevent infinite loop in self-heal fullXavi Hernandez2018-10-311-5/+6
| | | | | | | | | | | | | | | | | | | | | | | There was a problem in commit 7f81067 that caused infinite loop when full heal was triggered. The previous commit was made to prevent self-heal to go idle after a replace brick operation. One of the changes consisted on setting a flag to force an immediate scan of the dirty directory if a heal on a directory succeeded (assuming it could have generated newer entries). However that change was causing an issue with a full self-heal, since every time an already healed directory was checked and it returned suceessfully, it was also setting the flag, forcing self-heal to start over again. This patch fixes this issue by only setting the flag if the heal is not full. It's assumed that a full self-heal will already traverse all entries automatically, so there's no need to force a new scan later. Change-Id: Id12dbfc04e622b18183e796cc6cc87ccc30a6d55 fixes: bz#1636631 Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
* cluster/dht: NULL pointer dereferencing clang fixHarpreet Lalwani2018-10-313-44/+32
| | | | | | | | | | | | | Dereferencing NUll pointers this,local and stbuf. 1.Replaced this->name with "dht". 2.Removed GF_VALIDATE_OR_GOTO. 3.Removed the check for "stbuf" and "this". Updates: bz#1622665 Change-Id: Id2fb2270d5ec37b76fa2aae1f1c8dca72dcc728a Signed-off-by: Harpreet Lalwani <hlalwani@redhat.com>
* cluster/ec: Change log level to DEBUG for lookup combineAshish Pandey2018-10-311-1/+1
| | | | | | | | | | | | | As lookup is not a locked fop, we can not trust the data received in this to be same. Changing the log level to DEBUG in case lookup finds any difference. Change-Id: I39499c44688a2455c7c6c69a798762d045d21b39 updates: bz#1640066 BUG: 1640066 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* stripe: remove the translator from build and glusterdAmar Tumballi2018-10-311-1/+1
| | | | | | | | | | | | | | | | Based on the proposal to remove few features as they are not actively maintained [1], removing stripe translator from the build. Also make sure there are no regression tests involving stripe translator. [1] https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html Note that this patch aims at removing the translator from build, and a followup patch is needed to remove the code from repository. Updates: bz#1364707 Change-Id: I235b305338f138e29e9f30cba65bc0dadbebbbd5 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* afr/lease: Read child nodes from lease structureroot2018-10-251-1/+1
| | | | | | | | | | For lease operation, we allocate and store child nodes data in lease structure. Use the same in afr_lease_cbk() while checking for the quorum. Change-Id: If1fdd5a0798888afd39ad3df57d96487baf9d1e6 updates: #350 Signed-off-by: Soumya Koduri <skoduri@redhat.com>
* afr: thin-arbiter 2 domain locking and in-memory stateRavishankar N2018-10-256-76/+679
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2 domain locking + xattrop for write-txn failures: -------------------------------------------------- - A post-op wound on TA takes AFR_TA_DOM_NOTIFY range lock and AFR_TA_DOM_MODIFY full lock, does xattrop on TA and releases AFR_TA_DOM_MODIFY lock and stores in-memory which brick is bad. - All further write txn failures are handled based on this in-memory value without querying the TA. - When shd heals the files, it does so by requesting full lock on AFR_TA_DOM_NOTIFY domain. Client uses this as a cue (via upcall), releases AFR_TA_DOM_NOTIFY range lock and invalidates its in-memory notion of which brick is bad. The next write txn failure is wound on TA to again update the in-memory state. - Any incomplete write txns before the AFR_TA_DOM_NOTIFY upcall release request is got is completed before the lock is released. - Any write txns got after the release request are maintained in a ta_waitq. - After the release is complete, the ta_waitq elements are spliced to a separate queue which is then processed one by one. - For fops that come in parallel when the in-memory bad brick is still unknown, only one is wound to TA on wire. The other ones are maintained in a ta_onwireq which is then processed after we get the response from TA. Change-Id: I32c7b61a61776663601ab0040e2f0767eca1fd64 updates: bz#1579788 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* cluster/afr : Check for UP bricks before starting healAshish Pandey2018-10-243-1/+19
| | | | | | | | | | | | | | | | | | | | | | | Problem: Currently for replica volume, even if only one brick is UP SHD will keep crawling index entries even if it can not heal anything. In thin-arbiter volume which is also a replica 2 volume, this causes inode lock contention which in turn sends upcall to all the clients to release notify locks, even if it can not do anything for healing. This will slow down the client performance and kills the purpose of keeping in memory information about bad brick. Solution: Before starting heal or even crawling, check if sufficient number of children are UP and available to check and heal entries. Change-Id: I011c9da3b37cae275f791affd56b8f1c1ac9255d updates: bz#1640581 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* cluster/ec: NULL pointer deferencing clang fixSheetal Pamecha2018-10-191-2/+0
| | | | | | | | | Removing VALIDATE_OR_GOTO check on "this" Updates: bz#1622665 Change-Id: Ic7cffbb697da814f835d0ad46e25256da6afb406 Signed-off-by: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
* cluster/dht: fixes to unlinking invalid linkto fileRaghavendra Gowdappa2018-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If unlinking of an invalid linkto file failed in lookup-everywhere codepath, lookup was failed with EIO. The rational as per the comment was, <snip> /* When dht_lookup_everywhere is performed, one cached *and one hashed file was found and hashed file does *not point to the above mentioned cached node. So it *was considered as stale and an unlink was performed. *But unlink fails. So may be rebalance is in progress. *now ideally we have two data-files. One obtained during *lookup_everywhere and one where unlink-failed. So *at this point in time we cannot decide which one to *choose because there are chances of first cached *file is truncated after rebalance and if it is chosen *as cached node, application will fail. So return EIO. */ </snip> However, this reasoning is only valid when * op_errno is EBUSY, indicating rebalance is in progress * op_errno is ENOTCONN as wecannot determine what was the status of file on brick. Hence this patch doesn't fail lookup unless unlink fails with an either EBUSY or ENOTCONN Change-Id: Ife55f3d97fe557f3db05beae0c2d786df31e8e55 Fixes: bz#1635145 Signed-off-by: Raghavendra Gowdappa <rgowdapp@redhat.com>
* libglusterfs/dict: Add sizeof()-1 variants of dict functionsPranith Kumar K2018-10-151-4/+4
| | | | | | | | | | | One needs to be very careful about giving same key for the key and SLEN(key) arguments in dict_xxxn() functions. Writing macros that would take care of passing the SLEN(key) would help reduce this burden on the developer and reviewer. updates: bz#1193929 Change-Id: I312c479b919826570b47ae2c219c53e2f9b2ddef Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* cluster/dht : Fix coverity issueAshish Pandey2018-10-111-2/+2
| | | | | | | | | | | | To check if the gfid is null or not we should use function gf_uuid_is_null CID: 1382364 https://scan6.coverity.com/reports.htm#v42607/p10714/fileInstanceId=86243257&defectInstanceId=26374360&mergedDefectId=1382364 Change-Id: I81944b823c9ee6e6dcc9695f64f7e5966e0d7030 updates: bz#789278 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* afr: prevent winding inodelks twice for arbiter volumesRavishankar N2018-10-101-1/+1
| | | | | | | | | | | | | | | | | | Problem: In an arbiter volume, if there is a pending data heal of a file only on arbiter brick, self-heal takes inodelks twice due to a code-bug but unlocks it only once, leaving behind a stale lock on the brick. This causes the next write to the file to hang. Fix: Fix the code-bug to take lock only once. This bug was introduced master with commit eb472d82a083883335bc494b87ea175ac43471ff Thanks to Pranith Kumar K <pkarampu@redhat.com> for finding the RCA. fixes: bz#1637802 Change-Id: I15ad969e10a6a3c4bd255e2948b6be6dcddc61e1 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* all: fix warnings on non 64-bits architecturesXavi Hernandez2018-10-1020-126/+142
| | | | | | | | | | When compiling in other architectures there appear many warnings. Some of them are actual problems that prevent gluster to work correctly on those architectures. Change-Id: Icdc7107a2bc2da662903c51910beddb84bdf03c0 fixes: bz#1632717 Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
* dht: coverity fixesSusant Palai2018-10-054-35/+30
| | | | | | | | | | CID: 1356541 Issue: Dereference null return value CID: 1382411 Issue: Dereference after null check CID: 1391409 Issue: Unchecked return value Change-Id: Id3d4feb4e88df424003cc8e8a1540e77bbe030e3 Updates: bz#789278 Signed-off-by: Susant Palai <spalai@redhat.com>
* dht: volume_options 'options' collision with nfs-ganesha's 'options'Kaleb S. KEITHLEY2018-10-044-7/+11
| | | | | | | | | | | | | | | | | When dht was converted to xlator_api, the variable 'options' was not changed to dht_options, the same as was done to all the other xlators that were converted to xlator_api. Thus the reference to 'options' in dht.c is not resolved until runtime, and the RTlinker's search path starts with symbols in the executable, i.e. ganesha.nfsd's 'options'. (Which is obviously not the right one.) The unused extern references to 'options' (now dht_options) in nufa.c and switch.c is curious. Change-Id: Idf4a5d5fbd39aadfa5a4b529bceea65a3cbdf8f3 updates: bz#1193929 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
* Quota related files: use dict_{setn|getn|deln|get_int32n|set_int32n|set_strn}Yaniv Kaul2018-09-262-2/+3
| | | | | | | | | | | | | | In a previous patch (https://review.gluster.org/20769) we've added the key length to be passed to dict_* funcs, to remove the need to strlen() it. This patch moves some code to use it. Please review carefully. Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: If4f425a9827be7c36ccfbb9761006ae824a818c6
* cluster/ec: variable-length array (VLA) declaration clang fixSheetal Pamecha2018-09-261-1/+1
| | | | | | | | | | | Problem: variable-length array size becomes zero Modified array size to size+1 while declaring Updates: bz#1622665 Change-Id: I98ee8447c87f37c36c49f50058292e8c1757a1f9 Signed-off-by: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
* dht: Coverity fixesSusant Palai2018-09-242-2/+3
| | | | | | | | | | | CID: 1274236 Issue: Logically dead code (op_errno will never be -1) CID: 1351652 Issue: Dereference after null check. (local->fd is dereferenced anyway and it should not be NULL ever for dht_readdirp_cbk.) Change-Id: Ied9c5f5b72536be1ca944237165acdc62b792e58 updates: bz#789278 Signed-off-by: Susant Palai <spalai@redhat.com>
* afr: fix incorrect reporting of directory split-brainRavishankar N2018-09-217-16/+22
| | | | | | | | | | | | | | | | | Problem: When a directory has dirty xattrs due to failed post-ops or when replace/reset brick is performed, AFR does a conservative merge as expected, but heal-info reports it as split-brain because there are no clear sources. Fix: Modify pending flag to contain information about pending heals and split-brains. For directories, if spit-brain flag is not set,just show them as needing heal and not being in split-brain. Fixes: bz#1626994 Change-Id: I09ef821f6887c87d315ae99e6b1de05103cd9383 Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* cluster/afr: Make data eager-lock decision based on number of locksPranith Kumar K2018-09-213-6/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For both Virt and block workloads the file is opened multiple times leading to dynamically setting eager-lock to off for the workload. Instead of depending on the number-of-open-fds, if we change the logic to depend on number of inodelks, then it will give better performance than the earlier logic. When there is an eager-lock and number of inodelks is more than 1 we know that there is a conflicting lock, so depend on that information to decide whether to keep the current transaction go through delayed-post-op or not. Locks xlator doesn't have implementation to query number of locks in fxattrop in releases older than 3.10 so to keep things backward compatible in 3.12, data transactions will use new logic where as fxattrop transactions will use old logic. I am planning to send one more patch which makes metadata domain locks also depend on inodelk-count Profile info for a dd of 500MB to a file with another fd opened on the file using exec 250>filename Without this patch: 0.14 67.41 us 16.72 us 3870.82 us 892 FINODELK 0.59 279.87 us 95.71 us 2085.89 us 898 FXATTROP 3.46 366.43 us 81.75 us 6952.79 us 4000 WRITE 95.79 148733.99 us 50568.12 us 919127.86 us 273 FSYNC With this patch: 0.00 51.01 us 38.07 us 80.16 us 4 FINODELK 0.00 235.43 us 235.43 us 235.43 us 1 TRUNCATE 0.00 125.07 us 56.80 us 193.33 us 2 GETXATTR 0.00 135.86 us 62.13 us 209.59 us 2 INODELK 0.00 197.88 us 155.39 us 253.90 us 4 FXATTROP 0.00 450.59 us 394.28 us 506.89 us 2 XATTROP 0.00 56.96 us 19.06 us 406.59 us 23 FLUSH 37.81 273648.93 us 48.43 us 6017657.05 us 44 LOOKUP 62.18 4951.86 us 93.80 us 1143154.75 us 3999 WRITE postgresql benchmark performance changed from ~1130 TPS to ~2300TPS randio fio job inside Ovirt based VM went from ~600IOPs to ~2000IOPS fixes bz#1630368 Change-Id: If7f7388d2f08cf7f17ca517a4ea222560661dc36 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* dht: Operate internal fops with negative pidSusant Palai2018-09-201-0/+1
| | | | | | | | | | | | | | | | | | | With root-squash on, all root credentials are converted to a random uid, gid(65535). And ideally this does not carry the necessary permission bits to carry out the operation. But posix-acl will allow operations from this inode as long as its ctx has the ngroup information and ngroup has the owner group information. The problem we ran into recently was somehow posix-acl xlator did not cache the ngroup info and some of the dht internal fops(layout setxattr) failed with root-squash enabled. DHT internal fops now use a negative pid to pretend that the operation is from an internal client so posix-acl allows them to pass Change-Id: I5bb8d068389bf4c94629d668a16015a95ccb53ab fixes: bz#1624796 Signed-off-by: Susant Palai <spalai@redhat.com>
* cluster/afr: Use 2 domain locking in SHD for thin-arbiterkarthik-us2018-09-203-91/+162
| | | | | | | | | | | | | | | | | | | | With this change when SHD starts the index crawl it requests all the clients to release the AFR_TA_DOM_NOTIFY lock so that clients will know the in memory state is no more valid and any new operations needs to query the thin-arbiter if required. When SHD completes healing all the files without any failure, it will again take the AFR_TA_DOM_NOTIFY lock and gets the xattrs on TA to see whether there are any new failures happened by that time. If there are new failures marked on TA, SHD will start the crawl immediately to heal those failures as well. If there are no new failures, then SHD will take the AFR_TA_DOM_MODIFY lock and unsets the xattrs on TA, so that both the data bricks will be considered as good there after. Change-Id: I037b89a0823648f314580ba0716d877bd5ddb1f1 fixes: bz#1579788 Signed-off-by: karthik-us <ksubrahm@redhat.com>
* cluster/afr: Batch writes in same lock even when multiple fds are openPranith Kumar K2018-09-191-9/+2
| | | | | | | | | | | | | | | | | | | | | | Problem: When eager-lock is disabled because of multiple-fds opened and app writes come on conflicting regions, the number of locks grows very fast leading to all the CPU being spent just in locking and unlocking by traversing huge queues in locks xlator for granting locks. Fix: Reduce the number of locks in transit by bundling the writes in the same lock and disable delayed piggy-pack when we learn that multiple fds are open on the file. This will reduce the size of queues in the locks xlator. This also reduces the number of network calls like inodelk/fxattrop. Please note that this problem can still happen if eager-lock is disabled as the writes will not be bundled in the same lock. fixes bz#1625961 Change-Id: I8fd1cf229aed54ce5abd4e6226351a039924dd91 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* dht: utilize the framework to pass-through xlator tasksAmar Tumballi2018-09-197-27/+231
| | | | | | | | | | | | | | | | | | | | | Also fixes the issue caused due to not converting back the fn function to after getting its address. We wanted the value of the field, not the address of the pt_fop field. With this patch, DHT will always be started in pass-through mode if the number of subvols is just 1. Fixes some tests to make sure DHT is in full config (ie, subvols > 1). - increased timeout of brick-mux test as it was bordering on 300 seconds. - Also change the volume type to supported 'replica 3' from 'replica 2'. - also no DHT tests should assume presence of DHT when there is just 1 brick in volume Credits: Nithya B <nbalacha@redhat.com> fixes: #405 Change-Id: I8e55239ce58d6ac6ae1901e2e384be1ecbd33d6e Signed-off-by: Amar Tumballi <amarts@redhat.com>
* build: cleanup xlator link, --no-undefined, libuuidv6devKaleb S. KEITHLEY2018-09-121-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While attempting to build a (pre-)5.0 of glusterfs on Ubuntu bionic and cosmic, it became apparent that there are some gremlins hiding in the combination of the xlator export-symbols, the newish addition of -Wl,--no-undefined, and the new switch to libuuid from the old contrib/uuid. Note: even though Fedora 28 (and later) and Ubuntu bionic (and later) have the same nominal version of libtool, the Fedora version appears to do a better job of recursing through dependencies to determine the libraries to link with. Examination of the build logs showed that despite appearing to work on Fedora, not all xlators and shared libs were linked with -Wl, --no-undefined, and -luuid. And in the case of the gnfs xlator, it was not only not linked with -Wl,--no-undefined but alsos not linked with -lgfxdr and -lgfrpc. Added GF_XLATOR_LDFLAGS, similar to GF_XLATOR_DEFAULT_LDFLAGS. GF_XLATOR_DEFAULT_LDFLAGS is for xlators that export/expose the default or common set of symbols. GF_XLATOR_LDFLAGS is for those remaining xlators that export/expose non-default symbols, e.g. dht and glupy. This removes the need in the future to add things like $(UUID_LIBS) to every xlator's Makefile.am. Just add it to GF_XLATOR_LDFLAGS and GF_XLATOR_DEFAULT_LDFLAGS in configure.ac and you're done. This patch was tested on Fedora 28 (build, rpmbuild), Fedora Rawhide/30 (rpmbuild), RHEL8 (rpmbuild), CentOS7 (rpmbuild), Fedora koji --scratch build for f30/rawhide, and a Launchpad build for Ubuntu cosmic/18.10. Change-Id: Ieca104fa5c5d3c094e701c8ca4a73754dd0292b0 updates: bz#1193929 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
* Land part 2 of clang-format changesGluster Ant2018-09-1259-70721/+67551
| | | | | Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4 Signed-off-by: Nigel Babu <nigelb@redhat.com>
* Land clang-format changesGluster Ant2018-09-1232-3929/+3873
| | | | Change-Id: I6f5d8140a06f3c1b2d196849299f8d483028d33b
* dht: Use snprintf instead of strncpyN Balachandran2018-09-121-9/+20
| | | | | | | | | | | The recent changes to use malloc instead of calloc left the new_name and new_path non-null terminated. We now use snprintf instead of strncpy to fix this. Change-Id: I1a31701ca9447efde38921be0ba2c73cde2e7976 fixes: bz#1626346 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* cluster/dht: Create a linkto file if requiredN Balachandran2018-09-101-0/+30
| | | | | | | | | | | Using the dht_filter_loc_subvol_key to create files on specific subvols did not create a linkto file. This can make the file inaccessible as lookup-optimize is now enabled by default. Change-Id: I78add5a31887378a479cb9c746b91678876b0dbe fixes: bz#1626394 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* cluster/dht: optimize readdir for 1xn volsN Balachandran2018-09-101-12/+42
| | | | | | | | | Skip the hashed subvol check for volumes with distribute count of 1. Change-Id: I5703508b54a17c49a217c8a8e09884980705953a fixes: bz#1608175 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* ec-heal: remove a duplicate definition of alloca0Amar Tumballi2018-09-101-1/+0
| | | | | | | | | | the same macro is defined in common-utils.h, which seems to be much better place for the same. Updates: bz#1193929 Change-Id: I409b719c291102136500b955e5827a550142ed96 Signed-off-by: Amar Tumballi <amarts@redhat.com>
* xlators/cluster/dht/src/tier-common.c:move to GF_MALLOC() instead of ↵Yaniv Kaul2018-09-101-1/+1
| | | | | | | | | | | | | | | | | | GF_CALLOC() when It doesn't make sense to calloc (allocate and clear) memory when the code right away fills that memory with data. It may be optimized by the compiler, or have a microscopic performance improvement. Please review carefully, especially for string allocation, with the terminating NULL string. Only compile-tested! Change-Id: I7d38a7d576f6777976fe86e5351a8d95caddbb9c updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* cluster/dht: Rework the debug xattr to get hashed subvolN Balachandran2018-09-072-28/+33
| | | | | | | | | | | | | | | | | | | The earlier implementation required the file to already exist when trying to get the hashed subvol. The reworked implementation allows a user to get the hashed subvol for any filename, whether it exists or not. Usage: getfattr -n "dht.file.hashed-subvol.<filename>" <parent dir> Eg:To get the hashed subvol for file-1 inside dir-1 getfattr -n "dht.file.hashed-subvol.file-1" /mnt/gluster/dir1 credit: rgowdapp@redhat.com Change-Id: Iae20bd5f56d387ef48c1c0a4ffa9f692866bf739 fixes: bz#1624244 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* cluster/ec: Don't update trusted.ec.version if fop succeedsAshish Pandey2018-09-071-0/+9
| | | | | | | | | | | | | | | | | | | | If a fop has succeeded on all the bricks and trying to release the lock, there is no need to update the version for the file/entry. All it will do is to increase the version from x to x+1 on all the bricks. If this update (x to x+1) fails on some brick, this will indicate that the entry is unhealthy while in realty everything is fine with the entry. Avoiding this update will help to not to send one xattrop at the end of the fops. Which will decrease the chances of entries being in unhealthy state and also improve the performance. Change-Id: Id9fca6bd2991425db6ed7d1f36af27027accb636 fixes: bz#1623759 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* cluster/ec: Improve logging for some critical error messagesAshish Pandey2018-09-073-14/+55
| | | | | | Change-Id: I037e52a3467467b81a1ba5416317870864060d4d updates: bz#1615703 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* xlators/cluster/dht/src/dht-common.c :move to GF_MALLOC() instead of ↵Yaniv Kaul2018-09-071-2/+2
| | | | | | | | | | | | | | | | | | GF_CALLOC() when It doesn't make sense to calloc (allocate and clear) memory when the code right away fills that memory with data. It may be optimized by the compiler, or have a microscopic performance improvement. Please review carefully, especially for string allocation, with the terminating NULL string (added another byte to ensure it's there). Only compile-tested! Change-Id: Ia5e4f50dfb0c29809c2019fcfd8079507813249e updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* multiple xlators: strncpy()->sprintf(), reduce strlen()'sYaniv Kaul2018-09-074-33/+30
| | | | | | | | | | | | | | | | | | | | | | | xlators/cluster/afr/src/afr-common.c xlators/cluster/dht/src/dht-common.c xlators/cluster/dht/src/dht-rebalance.c xlators/cluster/stripe/src/stripe-helpers.c strncpy may not be very efficient for short strings copied into a large buffer: If the length of src is less than n, strncpy() writes additional null bytes to dest to ensure that a total of n bytes are written. Instead, use snprintf(). Also: - save the result of strlen() and re-use it when possible. - move from strlen to SLEN (sizeof() ) for const strings. Compile-tested only! Change-Id: Icdf79dd3d9f9ff120e4720ff2b8bd016df575c38 updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* cluster/dht: Initialise pointers to nullN Balachandran2018-09-061-2/+2
| | | | | | | | | | | | | | | | Use calloc in dht_layouts_init so to as to prevent dht_init from attempting to free invalid memory in case of failure. There are other ways to do this (set first failure to null and break there when cleaning up) but I prefer having all pointers initialized to null. This is a one time operation so it should not be too expensive. Change-Id: Ie22246047448f1cae971d48fa5aaf2efcaeb42c0 fixes: bz#1625643 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* afr: thin-arbiter read txn changesRavishankar N2018-09-053-19/+255
| | | | | | | | | | | | | | | | If both data bricks are up, read subvol will be based on read_subvols. If only one data brick is up: - First qeury the data-brick that is up. If it blames the other brick, allow the reads. - If if doesn't, query the TA to obtain the source of truth. TODO: See if in-memory state can be maintained for read txns (BZ 1624358). updates: bz#1579788 Change-Id: I61eec35592af3a1aaf9f90846d9a358b2e4b2fcc Signed-off-by: Ravishankar N <ravishankar@redhat.com>
* glusterd: Fix Buffer size issuesSanju Rakonde2018-09-041-3/+3
| | | | | | | | This patch fixes buffer size issue 1138522. Change-Id: Ia12fc8f34f75704f8ed3efae2022c4fd67a8c76c updates: bz#789278 Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
* {dht-rebalance|glusterd-geo-rep|glusterd-utils|nfs|bd}.c: no dict_del before ↵Yaniv Kaul2018-09-041-1/+0
| | | | | | | | | | | | dict_set There is no need to remove an item before re-setting it. Compile-tested only! Change-Id: I2869aec9ebf474859127b8b38d284246e6097e84 updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* multiple files: calloc -> mallocYaniv Kaul2018-09-047-41/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xlators/cluster/stripe/src/stripe-helpers.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/tier.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-layout.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-helper.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/dht/src/dht-common.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/afr/src/afr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible xlators/cluster/afr/src/afr-inode-read.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/bugs/replicate/bug-1250170-fsync.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/basic/gfapi/gfapi-async-calls-test.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible tests/basic/ec/ec-fast-fgetxattr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/xdr/src/glusterfs3.h: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/rpc-transport/socket/src/socket.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible rpc/rpc-lib/src/rpc-clnt.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible extras/geo-rep/gsync-sync-gfid.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-xml-output.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-rpc-ops.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-volume.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-system.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-snapshot.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-peer.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible cli/src/cli-cmd-global.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible It doesn't make sense to calloc (allocate and clear) memory when the code right away fills that memory with data. It may be optimized by the compiler, or have a microscopic performance improvement. In some cases, also changed allocation size to be sizeof some struct or type instead of a pointer - easier to read. In some cases, removed redundant strlen() calls by saving the result into a variable. 1. Only done for the straightforward cases. There's room for improvement. 2. Please review carefully, especially for string allocation, with the terminating NULL string. Only compile-tested! updates: bz#1193929 Original-Author: Yaniv Kaul <ykaul@redhat.com> Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Signed-off-by: Amar Tumballi <amarts@redhat.com> Change-Id: I16274dca4078a1d06ae09a0daf027d734b631ac2
* xlators/cluster/afr/src/afr-inode-read.c: move to GF_MALLOC() instead of ↵Yaniv Kaul2018-09-041-1/+1
| | | | | | | | | | | | | | | | | | GF_CALLOC() when It doesn't make sense to calloc (allocate and clear) memory when the code right away fills that memory with data. It may be optimized by the compiler, or have a microscopic performance improvement. Please review carefully, especially for string allocation, with the terminating NULL string. Only compile-tested! Change-Id: Ief156de98769fea852553044a398a309e831754b updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
* cluster/afr: Delegate name-heal when possiblePranith Kumar K2018-09-042-27/+85
| | | | | | | | | | | | | | | | | | | | | | | | | Problem: When name-self-heal is triggered on the mount, it blocks lookup until name-self-heal completes. But that can lead to hangs when lot of clients are accessing a directory which needs name heal and all of them trigger heals waiting for other clients to complete heal. Fix: When a name-heal is needed but quorum number of names have the file and pending xattrs exist on the parent, then better to delegate the heal to SHD which will be completed as part of entry-heal of the parent directory. We could also do the same for quorum-number of names not present but we don't have any known use-case where this is a frequent occurrence so not changing that part at the moment. When there is a gfid mismatch or missing gfid it is important to complete the heal so that next rename doesn't assume everything is fine and perform a rename etc fixes bz#1622821 Change-Id: I8b002c85dffc6eb6f2833e742684a233daefeb2c Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
* cluster/dht: In rename, unlink after creating linkto fileN Balachandran2018-09-031-122/+132
| | | | | | | | | | | | | | The linkto file creation for the dst was done in parallel with the unlink of the old src linkto. If these operations reached the brick out of order, we end up with a dst linkto file without a .glusterfs handle. Fixed by the unlinking only after the linkto file creation has completed. Change-Id: I4246f7655f5bc180f5ded7fd34d263b7828a8110 fixes: bz#1621981 Signed-off-by: N Balachandran <nbalacha@redhat.com>
* cluster/ec: Fix Coverity issueAshish Pandey2018-08-312-42/+0
| | | | | | | | | | | | | | | | | | | | | | | | Fix following coverity issues- CID: 1382378 1382459 https://scan6.coverity.com/reports.htm#v42607/p10714/fileInstanceId=85091670&defectInstanceId=25915064&mergedDefectId=1382459 https://scan6.coverity.com/reports.htm#v42607/p10714/fileInstanceId=85091670&defectInstanceId=25915063&mergedDefectId=1382378 Problem: ASSERT_LOCAL(this, healer) function is supposed to get the local healer so that we can take advantage of it while healing and reading data. However, we are not using healer->local anywhere. Also, this is not as useful in context of EC as it is in AFR. In EC we have to raed fragments from 4 bricks to heal a bad fragment on other brick. Change-Id: Iea8ce127ea02cc84e3823cb2be82a47872217b33 updates: bz#789278 Signed-off-by: Ashish Pandey <aspandey@redhat.com>
* xlators/cluster/dht/src/dht-common.c: simplify some if statementsYaniv Kaul2018-08-311-48/+52
| | | | | | | | | | | | Use goto when some vars are not set to simplify long if statements. Please review logic has not changed! Compile-tested only! updates: bz#1193929 Signed-off-by: Yaniv Kaul <ykaul@redhat.com> Change-Id: I45ea2e906d0ccb468af5e1fa65db008edb00d734
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