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* nsr: add quorum enforcementJeff Darcy2014-04-221-0/+8
| | | | | Change-Id: I0241f8c1ac97c80ae438e3d9f1ac492d63da9347 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* nsr: use different etcd keys for each NSR subvolumeJeff Darcy2014-03-251-8/+43
| | | | | | | | This is necessary both for separate volumes using NSR and for DHT volumes composed of multiple NSR subvolumes. Change-Id: Ia269d70b535cc26900f8b6e7f22706087746fbe7 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* nsr: update to latest versions of etcd and etcd-apiJeff Darcy2014-03-051-1/+3
| | | | | | | | Also fixed some general bit-rot around how daemons are started when using real etcd. Change-Id: Ib5d9c8d49982c4562b6a28b7a7c1dd1e5d9d3077 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* nsr: add mem_acct_init functionsJeff Darcy2014-03-041-0/+19
| | | | | | | | | | | | It's not clear why this started failing after the last merge, since the mem_acct code hasn't changed for a while, but it did and having those functions is good form anyway. Also removed a bunch of GF_ASSERT(0) calls that made (and will continue to make) debugging unnecessarily painful. Change-Id: Icd89f2e23f1eaafc79cb9af06c3c9c8d2fdeec14 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* nsr: add first reconciliation testJeff Darcy2014-02-111-1/+1
| | | | | | | | | | | | | | | The test itself fails, because reconciliation never actually seems to complete. Instead, it fills up several log files with 16M lines worth of junk, even though we only did ~200 writes. Fencing is also disabled so we can make progress despite this. Still, this test should provide a basic framework for testing reconciliation once it's fixed. This patch also fixes the hard-coded executable path used to start the recon daemon. Without this, starting the brick fails on a standard install (because the hard-coded path was to a non-standard location). Change-Id: I982967d796c3fb5713c5062912be2d804dcc0149 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* nsr-server: add periodic fsync (as syncop)Jeff Darcy2014-01-291-1/+9
| | | | | Change-Id: I2fabe572ce0431f92fc361b338e262f1ecf5df66 Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
* NSR reconciliation: Adding index for each opRaghavan P2014-01-231-0/+2
| | | | | | | We need to have the leader generate an index number for each changelog entry. Change-Id: If451dc00a21dbc481771b713ac75fd0af6887014 Signed-off-by: Raghavan P <rpichai@redhat.com>
* nsr : Fix "special" recon logging functions.Anuradha2014-01-211-1/+42
| | | | | | | | | | | | | | | | | | | | | Combining two patches together. http://review.gluster.org/#/c/6538/4, author : Jeff Darcy and http://review.gluster.org/#/c/6748/2, author : Anuradha Talur. (1) Put logs into /var/log instead of /tmp. (2) Added debug-level check. (3) Added function/line information. (4) Fixed many instances of missing symbol GF_LOG_ERR. Removing spurious newlines will have to wait until a subsequent patch. Keeping this one up to date is tedious enough. Changed the logging directory of reconciliation logs to /var/log/nsr-logs. Change-Id: I8ffd901537d77329eddbd17b380c1611607927d6 Credits: Jeff Darcy <jdarcy@redhat.com> Signed-off-by: Anuradha <atalur@redhat.com>
* Changes to NSR reconciliation code.Raghavan P2014-01-081-15/+30
| | | | | | | | | | | | Following is list of changes: 1) Simulation of etcd using a file as a registry protected using locks. 2) Implement notifications for child up and child down. 3) Join a new brick into quorum. 4) add support for proper fencing and draining of IO required for reconciliaiton 5) misc changes and addressed review comments. Change-Id: Iddd1137ad6205252ed03301888bb1e83fa2221e0 Signed-off-by: Raghavan P <rpichai@redhat.com>
* Roll-up patch for NSR so far.Jeff Darcy2013-12-111-0/+682
Previous history: https://forge.gluster.org/~jdarcy/glusterfs-core/glusterfs-nsr Change-Id: I2b56328788753c6a74d9589815f2dd705ac9ce6a Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
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