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* Regression tests portability: Do not 'cd' into volumeXavier Hernandez2014-11-241-32/+31
| | | | | | | | | | | | | | | | | Changing current directory to the root of the volume to execute tests from there keeps an open file descriptor to it that could interfere with some tests. I've removed all 'cd' and used abosulte paths on all tests. Change-Id: Ic54afb7d7974e9e80818201bcd99ee2b01d00442 BUG: 1129939 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9151 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org>
* ec: Fix rebalance issuesXavier Hernandez2014-10-271-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some issues in ec xlator made that rebalance didn't complete successfully and generated some warnings and errors in the log. The most critical error was a race condition that caused false corruption detection when two specific operations were executed sequentially and they shared the same lock. This explains the problem: 1. A setxattr is issued. 2. setxattr: ec locks the inode before updating the xattr. 3. setxattr: The xattr is updated. 4. setxattr: Upper xlator is notified that the operation completed. 5. setxattr: A background task is initiated to update the version of the file. 6. A stat is issued on the same file. 7. stat: Since the lock is already acquired, it's reused. 8. stat: A lookup is issued to determine version and size information of the file. At this point, operations 5 and 8 can interfere. This can make that lookup sees different information on each brick, determining that some bricks are corrupted and incorrectly excluding them from the operation and initiating a self-heal. In some cases this false detection combined with self-heal could lead to invalid updates of the trusted.ec.size xattr, leaving the file smaller than it should be. This only happens if the first operation does not perform a lookup, because chained operations reuse the information returned by the previous one, avoiding this kind of problems. To solve this, now the background update is executed atomically with the posterior unlock. This avoids some reuses of the lock while updating. However this reduces performance because the window in which new requests can reuse the lock is much smaller now. This has been alleviated by using the same technique implemented in AFR (i.e. waiting some time before releasing the lock). Some minor changes also introduced in this patch: * Bug in management of 'trusted.glusterfs.pathinfo' that was writing beyond the allocated space. * Uninitialized variable. * trusted.ec.config was not created for regular files created with mknod. * An invalid state was used in access fop. Change-Id: Idfaf69578ed04dbac97a62710326729715b9b395 BUG: 1152902 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8947 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* test/ec: Fix spurious failures caused by self-healXavier Hernandez2014-10-031-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The sha1sum of a file may update the access time of that file. If this happens while a brick is down, as it is forced in the test, that brick doesn't get the update, getting out of sync. When the brick is restarted, self-heal repairs the file, but the test shouldn't access brick contents until self-heal finishes. If this is combined with a kill of another brick before self-heal has finished repairing the file, the volume could become inaccessible. Since the purpose of these tests is only to check ec functionality (there is another test that checks self-heal), the test that corrupts the file has been removed. Additional checks to validate the state of the volume have been added to avoid some timing issues. BUG: 1144108 Change-Id: Ibd9288de519914663998a1fbc4321ec92ed6082c Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8892 Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* ec: Removed SSE2 dependencyXavier Hernandez2014-09-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | This patch implements the Galois Field multiplications using pure C code without any assembler support. This makes the ec xlator portable to other architectures. In the future it will be possible to use an optimized implementation of the multiplications using architecture dependent facilities (it will be automatically detected and configured). To allow bricks with different machine word sizes to be able to work seamlessly in the same volume, the minimum fragment length to be stored in any brick has been fixed to 512 bytes. Otherwise, different implementations will corrupt the data (SSE2 used 128 bytes, while new implementation would have used 64). This patch also removes the '-msse2' option added on patch http://review.gluster.org/8395/ Change-Id: Iaf6e4ef3dcfda6c68f48f16ca46fc4fb61a215f4 BUG: 1125166 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8413 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com>
* tests/ec: Avoid spurious umount failuresXavier Hernandez2014-09-111-1/+1
| | | | | | | | | | | Change-Id: Id22d64a95adf3666a5e4208f87f9a6d91c40b267 BUG: 1092850 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8694 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* porting: various fixes regression tests OSX/FreeBSDHarshavardhana2014-08-291-3/+2
| | | | | | | | | | | | | | | | | | | | - `wc -l` on OSX/FreeBSD adds spurious spaces, this clobbers up TAP output parsers - fix it. - `umount -l` doesn't exist on OSX/FreeBSD use 'umount -f' if available. - Add check for 'file' version, to handle mime type variations across versions - Converge 'glusterfs --attribute-timeout=0 --entry-timeout=0' into '$GFS' - Modify remaining 'mount -t nfs' to use 'mount_nfs' - Update sha1sum for OSX to use 'openssl sha1'. Change-Id: Id1012faa5d67a921513d220e7fa9cebafe830d34 BUG: 1131713 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8501 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* Regression test portability: mktempEmmanuel Dreyfus2014-08-201-1/+1
| | | | | | | | | | | | | | Linux mktemp accepts to run without a template, NetBSD mandates it. Since the template option has the same syntax, add it everywhere. While there, also do this in scripts outside of regression testing. BUG: 764655 Change-Id: I3ec140afbc9009257c81a56d77afcc21fef74cc4 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8432 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Harshavardhana <harsha@harshavardhana.net>
* ec: Test volume mount point in a better wayXavier Hernandez2014-08-011-1/+1
| | | | | | | | | | | | | | | An 'ls -a1' on an empty volume seems to return 3 entries instead of the expected 2 ('.' and '..') in the build servers. I changed the test to a simple 'stat', which is enough and more reliable. Change-Id: I12d0f47394ad378b40fc9b86507cdb3543f99970 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8313 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cli/glusterd: Added support for dispersed volumesXavier Hernandez2014-07-111-0/+143
Two new options have been added to the 'create' command of the cli interface: disperse [<count>] redundancy <count> Both are optional. A dispersed volume is created by specifying, at least, one of them. If 'disperse' is missing or it's present but '<count>' does not, the number of bricks enumerated in the command line is taken as the disperse count. If 'redundancy' is missing, the lowest optimal value is assumed. A configuration is considered optimal (for most workloads) when the disperse count - redundancy count is a power of 2. If the resulting redundancy is 1, the volume is created normally, but if it's greater than 1, a warning is shown to the user and he/she must answer yes/no to continue volume creation. If there isn't any optimal value for the given number of bricks, a warning is also shown and, if the user accepts, a redundancy of 1 is used. If 'redundancy' is specified and the resulting volume is not optimal, another warning is shown to the user. A distributed-disperse volume can be created using a number of bricks multiple of the disperse count. Change-Id: Iab93efbe78e905cdb91f54f3741599f7ea6645e4 BUG: 1118629 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/7782 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>