initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 160 insertions, 0 deletions

diff --git a/src/ceph/qa/tasks/divergent_priors.py b/src/ceph/qa/tasks/divergent_priors.py
new file mode 100644
index 0000000..12ea933
--- /dev/null
+++ b/src/ceph/qa/tasks/divergent_priors.py
@@ -0,0 +1,160 @@
+"""
+Special case divergence test
+"""
+import logging
+import time
+
+from teuthology import misc as teuthology
+from util.rados import rados
+
+
+log = logging.getLogger(__name__)
+
+
+def task(ctx, config):
+    """
+    Test handling of divergent entries with prior_version
+    prior to log_tail
+
+    overrides:
+      ceph:
+        conf:
+          osd:
+            debug osd: 5
+
+    Requires 3 osds on a single test node.
+    """
+    if config is None:
+        config = {}
+    assert isinstance(config, dict), \
+        'divergent_priors task only accepts a dict for configuration'
+
+    manager = ctx.managers['ceph']
+
+    while len(manager.get_osd_status()['up']) < 3:
+        time.sleep(10)
+    manager.flush_pg_stats([0, 1, 2])
+    manager.raw_cluster_cmd('osd', 'set', 'noout')
+    manager.raw_cluster_cmd('osd', 'set', 'noin')
+    manager.raw_cluster_cmd('osd', 'set', 'nodown')
+    manager.wait_for_clean()
+
+    # something that is always there
+    dummyfile = '/etc/fstab'
+    dummyfile2 = '/etc/resolv.conf'
+
+    # create 1 pg pool
+    log.info('creating foo')
+    manager.raw_cluster_cmd('osd', 'pool', 'create', 'foo', '1')
+
+    osds = [0, 1, 2]
+    for i in osds:
+        manager.set_config(i, osd_min_pg_log_entries=10)
+        manager.set_config(i, osd_max_pg_log_entries=10)
+        manager.set_config(i, osd_pg_log_trim_min=5)
+
+    # determine primary
+    divergent = manager.get_pg_primary('foo', 0)
+    log.info("primary and soon to be divergent is %d", divergent)
+    non_divergent = list(osds)
+    non_divergent.remove(divergent)
+
+    log.info('writing initial objects')
+    first_mon = teuthology.get_first_mon(ctx, config)
+    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
+    # write 100 objects
+    for i in range(100):
+        rados(ctx, mon, ['-p', 'foo', 'put', 'existing_%d' % i, dummyfile])
+
+    manager.wait_for_clean()
+
+    # blackhole non_divergent
+    log.info("blackholing osds %s", str(non_divergent))
+    for i in non_divergent:
+        manager.set_config(i, objectstore_blackhole=1)
+
+    DIVERGENT_WRITE = 5
+    DIVERGENT_REMOVE = 5
+    # Write some soon to be divergent
+    log.info('writing divergent objects')
+    for i in range(DIVERGENT_WRITE):
+        rados(ctx, mon, ['-p', 'foo', 'put', 'existing_%d' % i,
+                         dummyfile2], wait=False)
+    # Remove some soon to be divergent
+    log.info('remove divergent objects')
+    for i in range(DIVERGENT_REMOVE):
+        rados(ctx, mon, ['-p', 'foo', 'rm',
+                         'existing_%d' % (i + DIVERGENT_WRITE)], wait=False)
+    time.sleep(10)
+    mon.run(
+        args=['killall', '-9', 'rados'],
+        wait=True,
+        check_status=False)
+
+    # kill all the osds but leave divergent in
+    log.info('killing all the osds')
+    for i in osds:
+        manager.kill_osd(i)
+    for i in osds:
+        manager.mark_down_osd(i)
+    for i in non_divergent:
+        manager.mark_out_osd(i)
+
+    # bring up non-divergent
+    log.info("bringing up non_divergent %s", str(non_divergent))
+    for i in non_divergent:
+        manager.revive_osd(i)
+    for i in non_divergent:
+        manager.mark_in_osd(i)
+
+    # write 1 non-divergent object (ensure that old divergent one is divergent)
+    objname = "existing_%d" % (DIVERGENT_WRITE + DIVERGENT_REMOVE)
+    log.info('writing non-divergent object ' + objname)
+    rados(ctx, mon, ['-p', 'foo', 'put', objname, dummyfile2])
+
+    manager.wait_for_recovery()
+
+    # ensure no recovery of up osds first
+    log.info('delay recovery')
+    for i in non_divergent:
+        manager.wait_run_admin_socket(
+            'osd', i, ['set_recovery_delay', '100000'])
+
+    # bring in our divergent friend
+    log.info("revive divergent %d", divergent)
+    manager.raw_cluster_cmd('osd', 'set', 'noup')
+    manager.revive_osd(divergent)
+
+    log.info('delay recovery divergent')
+    manager.wait_run_admin_socket(
+        'osd', divergent, ['set_recovery_delay', '100000'])
+
+    manager.raw_cluster_cmd('osd', 'unset', 'noup')
+    while len(manager.get_osd_status()['up']) < 3:
+        time.sleep(10)
+
+    log.info('wait for peering')
+    rados(ctx, mon, ['-p', 'foo', 'put', 'foo', dummyfile])
+
+    # At this point the divergent_priors should have been detected
+
+    log.info("killing divergent %d", divergent)
+    manager.kill_osd(divergent)
+    log.info("reviving divergent %d", divergent)
+    manager.revive_osd(divergent)
+
+    time.sleep(20)
+
+    log.info('allowing recovery')
+    # Set osd_recovery_delay_start back to 0 and kick the queue
+    for i in osds:
+        manager.raw_cluster_cmd('tell', 'osd.%d' % i, 'debug',
+                                    'kick_recovery_wq', ' 0')
+
+    log.info('reading divergent objects')
+    for i in range(DIVERGENT_WRITE + DIVERGENT_REMOVE):
+        exit_status = rados(ctx, mon, ['-p', 'foo', 'get', 'existing_%d' % i,
+                                       '/tmp/existing'])
+        assert exit_status is 0
+
+    log.info("success")