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* cluster/ec: Wait for all bricks to notify before notifying parentPranith Kumar K2015-03-301-14/+34
| | | | | | | | | | | | | | Backport of http://review.gluster.org/9523 This is to prevent spurious heals that can result in self-heal. BUG: 1188471 Change-Id: Iaea335d59431d8d85a236963a365f5c791fc7c49 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9552 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/ec: Handle CHILD UP/DOWN in all casesPranith Kumar K2015-03-301-104/+132
| | | | | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9396 Problem: When all the bricks are down at the time of mounting the volume, then mount command hangs. Fix: 1. Ignore all CHILD_CONNECTING events comming from subvolumes. 2. On timer expiration (without enough up or down childs) send CHILD_DOWN. 3. Once enough up or down subvolumes are detected, send the appropriate event. When rest of the subvols go up/down without changing the overall ec-up/ec-down send CHILD_MODIFIED to parent subvols. BUG: 1188471 Change-Id: If92bd84107d49495cd104deb34601afe7f9b155c Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9551 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* cluster/ec: Handle internal xattr get/setPranith Kumar K2015-02-041-30/+95
| | | | | | | | | | | | | | | | | | | | | Backport of http://review.gluster.org/9385 Problem: Internal xattrs of EC like trusted.ec.size/config/version can be modified by users and that can lead to misbehavior in EC. Fix: Don't let the user modify the xattrs. Hide these xattrs in getfattr outputs. BUG: 1182490 Change-Id: Ie32ebb95ee67cabbb9488951097a517172b45bcf Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/9455 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Fix incorrect value of EC_MAX_NODESXavier Hernandez2014-12-181-1/+1
| | | | | | | | | | | | | | | | | EC_MAX_NODES was incorrectly calculated. Now the value if computed as the minimum between the theoretical maximum and the limit imposed by the Galois Field. This is a backport of http://review.gluster.org/9193/ Change-Id: I75a8345147f344f051923d66be2c10d405370c7b BUG: 1170959 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9245 Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Change licenseXavier Hernandez2014-12-121-16/+6
| | | | | | | | | | | | | This is a backport of http://review.gluster.org/9201/ Change-Id: Iae90ade2421898417b53dec0417a610cf306c44b BUG: 1170515 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/9233 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Tested-by: Raghavendra Bhat <raghavendra@redhat.com>
* ec: Add state dump supportXavier Hernandez2014-10-041-0/+30
| | | | | | | | | | | | This is a backport of http://review.gluster.org/8891/ Change-Id: I4504f3050674dde217e79af28cb4d2b5370fe2d5 BUG: 1148093 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8899 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* ec: Optimize read/write performanceXavier Hernandez2014-09-161-1/+8
| | | | | | | | | | | | | | | | | | | | This patch significantly improves performance of read/write operations on a dispersed volume by reusing previous inodelk/ entrylk operations on the same inode/entry. This reduces the latency of each individual operation considerably. Inode version and size are also updated when needed instead of on each request. This gives an additional boost. This is a backport of http://review.gluster.org/8369/ Change-Id: I4b98d5508c86b53032e16e295f72a3f83fd8fcac BUG: 1140844 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8746 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com>
* ec: Do not destroy inode context on inode invalidationXavier Hernandez2014-09-121-28/+13
| | | | | | | | | | | | | | Currently there is no need to handle inode invalidation requests, so this callback has been removed. This is a backport of http://review.gluster.org/8420/ Change-Id: I0ac2e47679bf62b1493e0403178305923bc036e8 BUG: 1140846 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8702 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* cluster/ec: Added erasure code translatorXavier Hernandez2014-07-111-0/+904
Change-Id: I293917501d5c2ca4cdc6303df30cf0b568cea361 BUG: 1118629 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/7749 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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