initial code repo

[stor4nfv.git] / src / ceph / qa / tasks / resolve_stuck_peering.py

diff --git a/src/ceph/qa/tasks/resolve_stuck_peering.py b/src/ceph/qa/tasks/resolve_stuck_peering.py
new file mode 100644 (file)
index 0000000..bdf86e9
--- /dev/null
+++ b/src/ceph/qa/tasks/resolve_stuck_peering.py
@@ -0,0 +1,112 @@
+"""
+Resolve stuck peering
+"""
+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 resolve stuck peering
+
+    requires 3 osds on a single test node
+    """
+    if config is None:
+        config = {}
+        assert isinstance(config, dict), \
+            'Resolve stuck peering only accepts a dict for config'
+
+    manager = ctx.managers['ceph']
+
+    while len(manager.get_osd_status()['up']) < 3:
+        time.sleep(10)
+
+
+    manager.wait_for_clean()
+
+    dummyfile = '/etc/fstab'
+    dummyfile1 = '/etc/resolv.conf'
+
+    #create 1 PG pool
+    pool='foo'
+    log.info('creating pool foo')
+    manager.raw_cluster_cmd('osd', 'pool', 'create', '%s' % pool, '1')
+
+    #set min_size of the pool to 1
+    #so that we can continue with I/O
+    #when 2 osds are down
+    manager.set_pool_property(pool, "min_size", 1)
+
+    osds = [0, 1, 2]
+
+    primary = manager.get_pg_primary('foo', 0)
+    log.info("primary osd is %d", primary)
+
+    others = list(osds)
+    others.remove(primary)
+
+    log.info('writing initial objects')
+    first_mon = teuthology.get_first_mon(ctx, config)
+    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
+    #create few objects
+    for i in range(100):
+        rados(ctx, mon, ['-p', 'foo', 'put', 'existing_%d' % i, dummyfile])
+
+    manager.wait_for_clean()
+
+    #kill other osds except primary
+    log.info('killing other osds except primary')
+    for i in others:
+        manager.kill_osd(i)
+    for i in others:
+        manager.mark_down_osd(i)
+
+
+    for i in range(100):
+        rados(ctx, mon, ['-p', 'foo', 'put', 'new_%d' % i, dummyfile1])
+
+    #kill primary osd
+    manager.kill_osd(primary)
+    manager.mark_down_osd(primary)
+
+    #revive other 2 osds
+    for i in others:
+        manager.revive_osd(i)
+
+    #make sure that pg is down
+    #Assuming pg number for single pg pool will start from 0
+    pgnum=0
+    pgstr = manager.get_pgid(pool, pgnum)
+    stats = manager.get_single_pg_stats(pgstr)
+    print stats['state']
+
+    timeout=60
+    start=time.time()
+
+    while 'down' not in stats['state']:
+        assert time.time() - start < timeout, \
+            'failed to reach down state before timeout expired'
+        stats = manager.get_single_pg_stats(pgstr)
+
+    #mark primary as lost
+    manager.raw_cluster_cmd('osd', 'lost', '%d' % primary,\
+                            '--yes-i-really-mean-it')
+
+
+    #expect the pg status to be active+undersized+degraded
+    #pg should recover and become active+clean within timeout
+    stats = manager.get_single_pg_stats(pgstr)
+    print stats['state']
+
+    timeout=10
+    start=time.time()
+
+    while manager.get_num_down():
+        assert time.time() - start < timeout, \
+            'failed to recover before timeout expired'
+
+    manager.revive_osd(primary)